Patent Publication Number: US-11656442-B2

Title: Photographing lens assembly, imaging apparatus and electronic device

Description:
RELATED APPLICATIONS 
     This present application is a continuation of U.S. application Ser. No. 16/861,272, filed Apr. 29, 2020, which is a continuation of U.S. application Ser. No. 16/034,768, filed Jul. 13, 2018, now U.S. Pat. No. 10,678,025 issued on Jun. 9, 2020, which claims priority to Taiwan Application Serial Number 106145560, filed Dec. 25, 2017, which are herein incorporated by reference. 
    
    
     BACKGROUND 
     Technical Field 
     The present disclosure relates to a photographing lens assembly and an imaging apparatus. More particularly, the present disclosure relates to a photographing lens assembly and an imaging apparatus with a large field of view and a short total track length while being applicable to electronic devices. 
     Description of Related Art 
     With the advanced semiconductor manufacturing technologies, the performance of image sensors are enhanced, and the pixel size is minimized. Therefore, optical lens systems with high image quality become indispensable. 
     Moreover, with the rapid scientific and technological progress, the application scope of electronic devices equipped with optical lens systems becomes wider, and the requirements for optical lens systems are more diverse. However, it is hard for balancing the requirements, such as image quality, sensitivity, aperture size, volume and field of view, in conventional optical lens systems. Therefore, there is a need for an optical lens system to satisfy the desired requirements. 
     SUMMARY 
     According to one aspect of the present disclosure, a photographing lens assembly includes seven lens elements, which are, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The third lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof, and at least one of an object-side surface and the image-side surface of the seventh lens element includes at least one inflection point. At least one surface of the seven lens elements is aspheric. When a focal length of the first lens element is f1, a focal length of the third lens element is f3, a focal length of the fifth lens element is f5, an axial distance between an object-side surface of the first lens element and an image surface is TL, a maximum image height of the photographing lens assembly is ImgH, a curvature radius of an object-side surface of the third lens element is R5, and a curvature radius of an image-side surface of the third lens element is R6, the following conditions are satisfied:
 
| f 3/ f 1|&lt;0.90;
 
1.0&lt; TL /ImgH&lt;2.70;
 
0.10&lt;( R 5+ R 6)/( R 5− R 6)&lt;8.0; and
 
| f 5/ f 1|&lt;0.70.
 
     According to another aspect of the present disclosure, an imaging apparatus includes the photographing lens assembly according to the aforementioned aspect and an image sensor, wherein the image sensor is disposed on the image surface of the photographing lens assembly. 
     According to further another aspect of the present disclosure, an electronic device includes the imaging apparatus according to the aforementioned aspect. 
     According to yet another aspect of the present disclosure, a photographing lens assembly includes seven lens elements, which are, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The third lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof, and at least one of an object-side surface and the image-side surface of the seventh lens element includes at least one inflection point. At least one surface of the seven lens elements is aspheric. When a focal length of the first lens element is f1, a focal length of the third lens element is f3, an axial distance between an object-side surface of the first lens element and an image surface is TL, a maximum image height of the photographing lens assembly is ImgH, a curvature radius of the object-side surface of the first lens element is R1, a curvature radius of an image-side surface of the first lens element is R2, a curvature radius of an object-side surface of the third lens element is R5, and a curvature radius of an image-side surface of the third lens element is R6, the following conditions are satisfied:
 
| f 3/ f 1|&lt;0.90;
 
1.0&lt; TL /ImgH&lt;2.70;
 
0.10&lt;( R 5+ R 6)/( R 5− R 6)&lt;8.0; and
 
−1.80&lt;( R 1+ R 2)/( R 1− R 2).
 
     According to still another aspect of the present disclosure, a photographing lens assembly includes seven lens elements, which are, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. The first lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof. The third lens element has positive refractive power. The fifth lens element has positive refractive power. The seventh lens element has an image-side surface being concave in a paraxial region thereof and including at least one convex shape in an off-axis region thereof. At least one surface of the seven lens elements is aspheric. When a focal length of the first lens element is f1, a focal length of the third lens element is f3, an axial distance between an object-side surface of the first lens element and an image surface is TL, a maximum image height of the photographing lens assembly is ImgH, a curvature radius of the object-side surface of the first lens element is R1, a curvature radius of the image-side surface of the first lens element is R2, a curvature radius of an object-side surface of the third lens element is R5, and a curvature radius of an image-side surface of the third lens element is R6, the following conditions are satisfied:
 
| f 3/ f 1|&lt;2.0;
 
1.0&lt; TL /ImgH&lt;2.70;
 
−5.0&lt;( R 5+ R 6)/( R 5− R 6); and
 
0&lt;( R 1+ R 2)/( R 1− R 2)&lt;6.0.
 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present disclosure can be more fully understood by reading the following detailed description of the embodiments, with reference made to the accompanying drawings as follows: 
         FIG.  1    is a schematic view of an imaging apparatus according to the 1st embodiment of the present disclosure; 
         FIG.  2    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 1st embodiment; 
         FIG.  3    is a schematic view of an imaging apparatus according to the 2nd embodiment of the present disclosure; 
         FIG.  4    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 2nd embodiment; 
         FIG.  5    is a schematic view of an imaging apparatus according to the 3rd embodiment of the present disclosure; 
         FIG.  6    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 3rd embodiment; 
         FIG.  7    is a schematic view of an imaging apparatus according to the 4th embodiment of the present disclosure; 
         FIG.  8    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 4th embodiment; 
         FIG.  9    is a schematic view of an imaging apparatus according to the 5th embodiment of the present disclosure; 
         FIG.  10    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 5th embodiment; 
         FIG.  11    is a schematic view of an imaging apparatus according to the 6th embodiment of the present disclosure; 
         FIG.  12    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 6th embodiment; 
         FIG.  13    is a schematic view of an imaging apparatus according to the 7th embodiment of the present disclosure; 
         FIG.  14    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 7th embodiment; 
         FIG.  15    is a schematic view of an imaging apparatus according to the 8th embodiment of the present disclosure; 
         FIG.  16    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 8th embodiment; 
         FIG.  17    is a schematic view of an imaging apparatus according to the 9th embodiment of the present disclosure; 
         FIG.  18    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 9th embodiment; 
         FIG.  19    is a schematic view showing parameters of Y11, Y21, Y31, Y41, Y51 and Y72 of the imaging apparatus according to the 1st embodiment in  FIG.  1   ; 
         FIG.  20    is a schematic view showing parameters of Dsr3, Dsr4, Dsr5 and Dsr6 of the imaging apparatus according to the 1st embodiment in  FIG.  1   ; 
         FIG.  21    is a schematic view showing parameters of SAGc62 and Yc62 of the imaging apparatus according to the 1st embodiment in  FIG.  1   ; 
         FIG.  22    is a schematic view showing a parameter of Yc72 of the imaging apparatus according to the 1st embodiment in  FIG.  1   ; 
         FIG.  23    is a three-dimensional view of an imaging apparatus according to the 10th embodiment of the present disclosure; 
         FIG.  24 A  is a schematic view showing a side of an electronic device according to the 11th embodiment of the present disclosure; 
         FIG.  24 B  is a schematic view showing another side of the electronic device in  FIG.  24 A ; 
         FIG.  24 C  is a block diagram of the electronic device in  FIG.  24 A ; 
         FIG.  25    is a schematic view of an electronic device according to the 12th embodiment of the present disclosure; and 
         FIG.  26    is a schematic view of an electronic device according to the 13th embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     A photographing lens assembly includes seven lens elements, which are, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element, a sixth lens element and a seventh lens element. 
     The first lens element can have positive refractive power. Therefore, the light converging ability of the lens elements on the object side of the photographing lens assembly can be distributed effectively, and excessive aberrations caused by overly strong refractive power of any single lens element can be avoided. The first lens element can have an image-side surface being convex in a paraxial region thereof, which is favorable for the symmetry of the photographing lens assembly so as to reduce aberrations. Moreover, at least one of an object-side surface and the image-side surface of the first lens element can include at least one inflection point, which is favorable for controlling the size of the imaging apparatus and spherical aberration of the photographing lens assembly. 
     The second lens element can have an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. Therefore, tangential and sagittal rays can converge favorably so as to correct astigmatism of the photographing lens assembly. 
     The third lens element has positive refractive power. Therefore, the main light converging ability of the photographing lens assembly can be provided, which is favorable for reducing the total track length thereof so as to achieve compactness. 
     The fourth lens element can have negative refractive power, which can effectively correct chromatic aberration of the photographing lens assembly, while avoiding image overlaps due to the shift of the imaging position of light with different colors. 
     The fifth lens element can have positive refractive. Therefore, the light converging ability of the lens elements on the image side of the photographing lens assembly can be provided so as to balance aberrations thereof. The fifth lens element can have an object-side surface being concave in a paraxial region thereof and can have an image-side surface being convex in a paraxial region thereof. Therefore, it is favorable for moderating the incident angles and refraction angles of light rays on the surfaces of fifth lens element, so as to prevent the generation of stray lights. At least one of the object-side surface and the image-side surface of the fifth lens element can include at least one inflection point. Therefore, the aberration corrections of the fifth lens element can be enhanced so as to improve image brightness and image quality. 
     An image-side surface of the sixth lens element can include at least one convex shape in an off-axis region thereof. Therefore, it is favorable for avoiding the total reflection caused by excessive curvature of the surface of the sixth lens element as well as the resulting light spots in the image. At least one of an object-side surface and the image-side surface of the sixth lens element can include at least one inflection point. Therefore, the refraction angles of light rays on the surface of sixth lens element can be moderated, and distortion and field curvature can be corrected. 
     The seventh lens element has an image-side surface being concave in a paraxial region thereof, which can effectively control the back focal length to achieve compactness. Moreover, the seventh lens element can have negative refractive power. Therefore, the refractive power of the lens elements on the image side of the photographing lens assembly can be balanced for correcting aberrations and avoiding an overly large lens assembly due to an excessive back focal length. Moreover, the image-side surface of the seventh lens element can include at least one convex shape in an off-axis region thereof, which is favorable for improving Petzval field and reducing the size of the imaging apparatus while providing high image quality. Moreover, it is favorable for avoiding the total reflection caused by excessive curvature of the surface of the seventh lens element and the light spots formed in the image. At least one of an object-side surface and the image-side surface of the seventh lens element can include at least one inflection point, which can correct distortion and avoid vignetting generated on the image periphery. 
     At least one surface of the seven lens elements is aspheric, which is favorable for correcting aberrations of the off-axis region, decreasing the required number of the lens elements, and reducing the total track length. Alternatively, at least one surface of each lens element of the seven lens elements can be aspheric. Therefore, aberrations can be corrected, and the total track length of the photographing lens assembly can be reduced to achieve compactness. 
     There is an air gap in a paraxial region between each of adjacent lens elements of the seven lens elements. Therefore, the assembling complexity can be simplified so as to enhance the yield rate. Specifically, each of the first through seventh lens elements is a single and non-cemented lens element, every adjacent lens elements are not cemented, and there is a space between the two lens elements. In other words, of the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element, the sixth lens element and the seventh lens element of the photographing lens assembly, there is a space in a paraxial region between every adjacent lens elements. Moreover, the manufacturing process of the cemented lenses is more complex than the non-cemented lenses. In particular, both cementing surfaces of two cementing lens elements need to have accurate curvature to ensure these two lens elements will be highly cemented. However, during the cementing process, those two lens elements might not be highly cemented due to displacement and it is thereby not favorable for the image quality of the photographing lens assembly. Therefore, according to the photographing lens assembly of the present disclosure, an air gap in a paraxial region between every adjacent lens elements of the first lens element, the second lens element, the third lens element, the fourth lens element, the fifth lens element, the sixth lens element and the seventh lens element can avoid the problem generated by the cemented lens elements. 
     At least five lens elements of the seven lens elements can be made of plastic materials. Therefore, the weight of the imaging apparatus can be reduced, and the design freedom for lens elements can be increased. Accordingly, it is favorable for reducing the volume of the imaging apparatus. 
     When a focal length of the first lens element is f1, and a focal length of the third lens element is f3, the following condition can be satisfied: |f3/f1|&lt;2.0. Therefore, the distribution of the refractive power of the first lens element and the third lens element can be effectively controlled, which can provide the photographing lens assembly with a wider imaging range. Preferably, the following condition can be satisfied: |f3/f1|&lt;0.90. More preferably, the following condition can be satisfied: |f3/f1|&lt;0.75. More preferably, the following condition can be satisfied: |f3/f1|&lt;0.55. More preferably, the following condition can be satisfied: |f3/f1|&lt;0.25. 
     When an axial distance between the object-side surface of the first lens element and an image surface is TL, and a maximum image height of the photographing lens assembly is ImgH, the following condition can be satisfied: 1.0&lt;TL/ImgH&lt;2.70. Therefore, it is favorable for providing compactness and a sufficient range for receiving light rays, which can prevent image vignetting. Preferably, the following condition can be satisfied: 1.0&lt;TL/ImgH&lt;2.0. More preferably, the following condition can be satisfied: 1.0&lt;TL/ImgH&lt;1.75. 
     When a curvature radius of an object-side surface of the third lens element is R5, and a curvature radius of an image-side surface of the third lens element is R6, the following condition can be satisfied: −5.0&lt;(R5+R6)/(R5−R6). Therefore, the symmetry of the photographing lens assembly can be enhanced so as to avoid excessive aberrations. Preferably, the following condition can be satisfied: 0.10&lt;(R5+R6)/(R5−R6)&lt;8.0. More preferably, the following condition can be satisfied: 0.50&lt;(R5+R6)/(R5−R6)&lt;2.0. 
     When the focal length of the first lens element is f1, and a focal length of the fifth lens element is f5, the following condition can be satisfied: |f5/f1|&lt;0.70. Therefore, the distribution of the refractive power of the first lens element and the fifth lens element can be balanced, which can improve the ability of the fifth lens element for controlling light paths. Accordingly, the total track length of the photographing lens assembly can be controlled to achieve compactness. Preferably, the following condition can be satisfied: |f5/f1|&lt;0.35. 
     When a maximum of refractive indexes of all the lens elements of the photographing lens assembly is Nmax, the following condition can be satisfied: 1.650&lt;Nmax&lt;1.750. Therefore, the arrangement of the lens material of the photographing lens assembly can be balanced, which can enhance the image quality while reducing the total track length thereof and obtaining compactness. 
     At least two lens elements of all the lens elements of the photographing lens assembly can have Abbe numbers less than 25.0. With a larger density difference between a high dispersion material (i.e. with a small Abbe number) and air, a stronger light refraction can be provided within smaller space, which is favorable for reducing the size of the photographing lens assembly. Preferably, at least two lens elements of all lens elements of the photographing lens assembly can have Abbe numbers less than 22.0. 
     When a curvature radius of an object-side surface of the fourth lens element is R7, and a curvature radius of an image-side surface of the fourth lens element is R8, the following condition can be satisfied: −1.80&lt;(R7+R8)/(R7−R8)&lt;4.0. Therefore, surface shapes of the fourth lens element can be balanced, which is favorable for increasing the symmetry of the photographing lens assembly so as to maintain better image quality. 
     When half of a maximum field of view of the photographing lens assembly is HFOV, the following condition can be satisfied: 40.0 degrees&lt;HFOV&lt;70.0 degrees. Therefore, the field of view of the photographing lens assembly can be effectively controlled so as to obtain a larger image capturing range. Accordingly, it is favorable for obtaining more image information. 
     The photographing lens assembly can further include an aperture stop. When an axial distance between the aperture stop and the object-side surface of the second lens element is Dsr3, an axial distance between the aperture stop and the image-side surface of the second lens element is Dsr4, an axial distance between the aperture stop and the object-side surface of the third lens element is Dsr5, an axial distance between the aperture stop and the image-side surface of the third lens element is Dsr6, the following conditions can be satisfied: |Dsr4/Dsr3|&lt;1.0; and |Dsr5/Dsr6|&lt;1.0. Therefore, the position of the aperture stop can be controlled for balancing the field of view and the total track length, which is favorable for the compactness of the electronic device and increasing the utility. 
     When a maximum optical effective radius of the object-side surface of the first lens element is Y11, and a maximum optical effective radius of the image-side surface of the seventh lens element is Y72, the following condition can be satisfied: 0.50&lt;Y11/Y72&lt;1.0. Therefore, the size of openings on the object side and image side of the imaging apparatus can be controlled for enhancing relative illumination and the symmetry of the photographing lens assembly so as to reduce aberrations. 
     When a focal length of the photographing lens assembly is f, and a composite focal length of the first lens element and the second lens element is f12, the following condition can be satisfied: −0.10&lt;f/f12&lt;0.35. Therefore, the refractive power of the photographing lens assembly can be balanced, which is favorable for featuring the photographing lens assembly with a wider field of view and compactness. 
     When a displacement in parallel with an optical axis from an axial vertex on the image-side surface of the sixth lens element to a non-axial critical point on the image-side surface of the sixth lens element is SAGc62, and a vertical distance between the non-axial critical point on the image-side surface of the sixth lens element and the optical axis is Yc62, all non-axial critical points on the image-side surface of the sixth lens element can satisfy the following condition: |SAGc62/Yc62|&lt;0.10. By controlling the surface shape of the sixth lens element, the curvature of the lens element can be effectively controlled, so that the bulky volume of the imaging apparatus caused by the excessive space occupied by the lens element can be avoided. Moreover, the molding difficulty caused by an excessive curvature of the lens element can also be avoided. 
     When the focal length of the photographing lens assembly is f, and an entrance pupil diameter of the photographing lens assembly is EPD, the following condition can be satisfied: 0.80&lt;f/EPD≤2.30. Therefore, the light amount received by the photographing lens assembly can be increased, so that the captured image can be clearer. 
     When the vertical distance between the non-axial critical point on the image-side surface of the sixth lens element and the optical axis is Yc62, and a vertical distance between a non-axial critical point on the image-side surface of the seventh lens element and the optical axis is Yc72, the following condition can be satisfied: 0.10&lt;Yc62/Yc72&lt;1.50. Therefore, aberrations of the off-axis region can be corrected, and the field curvature of the photographing lens assembly can be well controlled. 
     When the focal length of the photographing lens assembly is f, a curvature radius of an object-side surface of one of the lens elements of the photographing lens assembly is Rf, and a curvature radius of an image-side surface of the lens element of the photographing lens assembly is Rr, at least one of the lens elements (the first lens element to the seventh lens element) can satisfy the following condition: |f/Rf|+|f/Rr|&lt;0.50. Therefore, the curvature of the lens element can be reduced, so that the lens element can be served as a correction lens for correcting aberrations. Preferably, the following condition can be satisfied: |f/Rf|+|f/Rr|&lt;0.38. 
     When a curvature radius of the object-side surface of the first lens element is R1, and a curvature radius of the image-side surface of the first lens element is R2, the following condition can be satisfied: −1.80&lt;(R1+R2)/(R1−R2). Therefore, the shape of the first lens element can be controlled, which can ensure that the incident angles of light rays on the surface of the lens element is proper, and the total reflection can be prevented. Preferably, the following condition can be satisfied: −1.0&lt;(R1+R2)/(R1−R2)&lt;8.0. More preferably, the following condition can be satisfied: 0&lt;(R1+R2)/(R1−R2)&lt;6.0. More preferably, the following condition can be satisfied: 0&lt;(R1+R2)/(R1−R2)&lt;2.50. More preferably, the following condition can be satisfied: 0&lt;(R1+R2)/(R1−R2)&lt;1.80. 
     When the maximum optical effective radius of the object-side surface of the first lens element is Y11, a maximum optical effective radius of the object-side surface of the second lens element is Y21, a maximum optical effective radius of the object-side surface of the third lens element is Y31, a maximum optical effective radius of the object-side surface of the fourth lens element is Y41, and a maximum optical effective radius of the object-side surface of the fifth lens element is Y51, the following conditions can be satisfied: Y11&gt;Y21; Y11&gt;Y31; Y11&gt;Y41; and Y11&gt;Y51. Therefore, the sizes of the lens elements can be controlled to ensure that a sufficient area of the first lens element can be provided to receive a larger range of light rays, so that the image brightness can be enhanced. 
     When the focal length of the photographing lens assembly is f, and the focal length of the first lens element is f1, the following condition can be satisfied: −0.30&lt;f/f1&lt;0.50. Therefore, the distribution of the refractive power of the photographing lens assembly can be balanced so as to effectively reduce the sensitivity. 
     When a central thickness of the fourth lens element is CT4, and a central thickness of the fifth lens element is CT5, the following condition can be satisfied: 0.10&lt;CT4/CT5&lt;0.85. Therefore, the central thicknesses of the fourth lens element and the fifth lens element can be balanced, so that deformation due to an excessively thin thickness or uneven molding due to an excessively thick thickness can be prevented. Preferably, the following condition can be satisfied: 0.10&lt;CT4/CT5&lt;0.65. 
     When an axial distance between the aperture stop and the image-side surface of the seventh lens element is SD, and an axial distance between the object-side surface of the first lens element and the image-side surface of the seventh lens element is TD, the following condition can be satisfied: 0.65&lt;SD/TD&lt;0.85. Therefore, the relative position of the aperture stop in the photographing lens assembly can be balanced, which is favorable for adjusting the relationship between the field of view and the total track length. 
     When the focal length of the photographing lens assembly is f, the focal length of the first lens element is f1, a focal length of the second lens element is f2, the focal length of the third lens element is f3, a focal length of the fourth lens element is f4, the focal length of the fifth lens element is f5, a focal length of the sixth lens element is f6, a focal length of the seventh lens element is f7, a focal length of i-th lens element is fi, and a minimum of values of |f/fi| is |f/f|min, the following condition can be satisfied: |f/f|min&lt;0.10, wherein i=1−7. Therefore, the ability of the photographing lens assembly for correcting aberrations can be enhanced, which is favorable the balance of the aberrations. 
     When the focal length of the photographing lens assembly is f, and the maximum image height of the photographing lens assembly is ImgH, the following condition can be satisfied: 0.65&lt;f/ImgH&lt;1.0. Therefore, the photographing range of the photographing lens assembly can be effectively controlled to enlarge the field of view, and various usage requirements can be satisfied. 
     When the focal length of the photographing lens assembly is f, the focal length of the first lens element is f1, and the focal length of the second lens element is f2, the following condition can be satisfied: |f/f1+|f/f2|&lt;0.50. Therefore, excessive aberrations caused by too strong refractive power of a single lens element can be avoided. Meanwhile, the image quality can be enhanced. Preferably, the following condition can be satisfied: |f/f1|+|f/f2|&lt;0.30. 
     Each of the aforementioned features of the photographing lens assembly can be utilized in numerous combinations, so as to achieve the corresponding functionality. 
     According to the present disclosure, the lens elements of the photographing lens assembly can be made of either glass or plastic material. When the lens elements are made of glass material, the refractive power distribution of the photographing lens assembly may be more flexible. The glass lens element can either be made by grinding or molding. When the lens elements are made of plastic material, the manufacturing cost can be effectively reduced. Furthermore, surfaces of each lens element can be arranged to be aspheric (ASP), which allows for more controllable variables for eliminating the aberration thereof, the required number of the lens elements can be decreased, and the total track length of the photographing lens assembly can be effectively reduced. The aspheric surfaces may be formed by plastic injection molding or glass molding. 
     According to the photographing lens assembly of the present disclosure, when a surface of a lens element is aspheric, it indicates that the complete optical effective area or a partial of the optical effective area of the surface of the lens element can be aspheric. 
     According to the photographing lens assembly of the present disclosure, each of an object-side surface and an image-side surface of a lens element has a paraxial region and an off-axis region. The paraxial region refers to the region of the surface where light rays travel close to the optical axis, and the off-axis region refers to the region of the surface away from the paraxial region. Particularly unless otherwise specified, when the lens element has a convex surface, it indicates that the surface can be convex in the paraxial region thereof; when the lens element has a concave surface, it indicates that the surface can be concave in the paraxial region thereof. According to the photographing lens assembly of the present disclosure, the refractive power of a lens element being positive or negative or the focal length of the lens element may refer to the refractive power or the focal length in the paraxial region of the lens element. 
     According to the photographing lens assembly of the present disclosure, the image surface, depending on the corresponding image sensor, can be a planar surface or a curved surface, particularly a curved surface being concave toward the object side. According to the photographing lens assembly of the present disclosure, at least one image correcting element (such as a field flattener) can be selectively disposed between a lens element closest to the image surface and the image surface so as to correct image aberrations (such as the field curvature). Properties of the image correcting element, such as curvature, thickness, refractive index, position, surface shape (convex/concave, spherical/aspheric/diffractive/Fresnel etc.) can be adjusted according to the requirements of the imaging apparatus. In general, the image correcting element is preferably a thin plano-concave element having a concave surface facing toward the object side and is disposed close to the image surface. 
     According to the photographing lens assembly of the present disclosure, the photographing lens assembly can include at least one stop, which can be disposed in front of the first lens element (i.e. between an imaged object and the first lens element), between any two lens elements or behind the last lens element (i.e. between the seventh lens element and the image surface). The stop can be a glare stop, a field stop, etc. Therefore, the stray light can be eliminated, and the image quality can be improved. 
     According to the photographing lens assembly of the present disclosure, an aperture stop can be configured as a front stop or a middle stop. A front stop is disposed between an imaged object and the first lens element, and a middle stop is disposed between the first lens element and the image surface. The front stop can provide a longer distance between an exit pupil of the photographing lens assembly and the image surface to enable a telecentric effect, and thereby can improve the image-sensing efficiency of an image sensor. The middle stop is favorable for enlarging the field of view of the photographing lens assembly and thereby provides a wider field of view for the same. 
     According to the photographing lens assembly of the present disclosure, a critical point is a non-axial point of the lens surface where its tangent is perpendicular to the optical axis. 
     According to the photographing lens assembly of the present disclosure, an inflection point is a point on a curve of a lens surface ranging from a paraxial region to an off-axis region of the lens surface where the center of curvature of the curve changes from the object side to the image side (or from the image side to the object side). 
     According to the photographing lens assembly of the present disclosure, the photographing lens assembly can be applied to 3D (three-dimensional) image capturing applications, in products such as digital cameras, mobile devices, digital tablets, smart TVs, network monitoring devices, motion sensing input devices, driving recorders, rear view camera systems, wearable devices, unmanned aerial vehicles, and other electronic imaging products. 
     According to the present disclosure, an imaging apparatus is provided. The imaging apparatus includes the aforementioned photographing lens assembly according to the present disclosure and an image sensor, wherein the image sensor is disposed on or near the image surface of the aforementioned photographing lens assembly. The photographing lens assembly is featured with a large field of view and a short total track length. Preferably, the imaging apparatus can further include a barrel member, a holder member or a combination thereof. 
     According to the present disclosure, an electronic device is provided, wherein the electronic device includes the aforementioned imaging apparatus. Therefore, it is favorable for enhancing the image quality. Besides the aforementioned imaging apparatus, the electronic device can further include another photographing lens set. The field of view of the photographing lens set is smaller than that of the photographing lens assembly of the imaging apparatus. The two lens sets (i.e., the photographing lens set and the photographing lens assembly of the imaging apparatus) can be connected by a processor to achieve the zoom effect. Preferably, the electronic device can further include, but not limited to, a control unit, a display, a storage unit, a random access memory unit (RAM) or a combination thereof. 
     According to the above description of the present disclosure, the following 1st-13th specific embodiments are provided for further explanation. 
     1st Embodiment 
       FIG.  1    is a schematic view of an imaging apparatus according to the 1st embodiment of the present disclosure.  FIG.  2    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 1st embodiment. In  FIG.  1   , the imaging apparatus includes a photographing lens assembly (its reference numeral is omitted) and an image sensor  195 . The photographing lens assembly includes, in order from an object side to an image side, a first lens element  110 , a second lens element  120 , an aperture stop  100 , a third lens element  130 , a fourth lens element  140 , a fifth lens element  150 , a sixth lens element  160 , a seventh lens element  170 , a filter  180  and an image surface  190 . The image sensor  195  is disposed on the image surface  190  of the photographing lens assembly. The photographing lens assembly includes seven lens elements ( 110 ,  120 ,  130 ,  140 ,  150 ,  160  and  170 ) without additional one or more lens elements inserted between the first lens element  110  and the seventh lens element  170 , and there is an air gap in a paraxial region between each of adjacent lens elements of the seven lens elements ( 110 - 170 ). 
     The first lens element  110  with positive refractive power has an object-side surface  111  being convex in a paraxial region thereof and an image-side surface  112  being convex in a paraxial region thereof. The first lens element  110  is made of a plastic material, and has the object-side surface  111  and the image-side surface  112  being both aspheric. Furthermore, the object-side surface  111  of the first lens element  110  includes at least one inflection point. 
     The second lens element  120  with negative refractive power has an object-side surface  121  being convex in a paraxial region thereof and an image-side surface  122  being concave in a paraxial region thereof. The second lens element  120  is made of a plastic material, and has the object-side surface  121  and the image-side surface  122  being both aspheric. 
     The third lens element  130  with positive refractive power has an object-side surface  131  being concave in a paraxial region thereof and an image-side surface  132  being convex in a paraxial region thereof. The third lens element  130  is made of a plastic material, and has the object-side surface  131  and the image-side surface  132  being both aspheric. 
     The fourth lens element  140  with negative refractive power has an object-side surface  141  being convex in a paraxial region thereof and an image-side surface  142  being concave in a paraxial region thereof. The fourth lens element  140  is made of a plastic material, and has the object-side surface  141  and the image-side surface  142  being both aspheric. 
     The fifth lens element  150  with positive refractive power has an object-side surface  151  being concave in a paraxial region thereof and an image-side surface  152  being convex in a paraxial region thereof. The fifth lens element  150  is made of a plastic material, and has the object-side surface  151  and the image-side surface  152  being both aspheric. Furthermore, each of the object-side surface  151  and the image-side surface  152  of the fifth lens element  150  includes at least one inflection point. 
     The sixth lens element  160  with negative refractive power has an object-side surface  161  being concave in a paraxial region thereof and an image-side surface  162  being convex in a paraxial region thereof. The sixth lens element  160  is made of a plastic material, and has the object-side surface  161  and the image-side surface  162  being both aspheric. Furthermore, each of the object-side surface  161  and the image-side surface  162  of the sixth lens element  160  includes at least one inflection point, and the image-side surface  162  of the sixth lens element  160  includes at least one convex shape in an off-axis region thereof. 
     The seventh lens element  170  with negative refractive power has an object-side surface  171  being convex in a paraxial region thereof and an image-side surface  172  being concave in a paraxial region thereof. The seventh lens element  170  is made of a plastic material, and has the object-side surface  171  and the image-side surface  172  being both aspheric. Furthermore, each of the object-side surface  171  and the image-side surface  172  of the seventh lens element  170  includes at least one inflection point, and the image-side surface  172  of the seventh lens element  170  includes at least one convex shape in an off-axis region thereof. 
     The filter  180  is made of a glass material and located between the seventh lens element  170  and the image surface  190 , and will not affect the focal length of the photographing lens assembly. 
     The equation of the aspheric surface profiles of the aforementioned lens elements of the 1st embodiment is expressed as follows: 
                 X   ⁡     (   Y   )       =         (       Y   2     /   R     )     /     (     1   +     s   ⁢   q   ⁢   r   ⁢     t   ⁡     (     1   -       (     1   +   k     )     ×       (     Y   /   R     )     2         )           )       +       ∑   i     ⁢       (   Ai   )     ×     (     Y   i     )             ,         
where,
 
     X is the relative distance between a point on the aspheric surface spaced at a distance Y from the optical axis and the tangential plane at the aspheric surface vertex on the optical axis; 
     Y is the vertical distance from the point on the aspheric surface to the optical axis; 
     R is the curvature radius; 
     k is the conic coefficient; and 
     Ai is the i-th aspheric coefficient. 
     In the photographing lens assembly according to the 1st embodiment, when a focal length of the photographing lens assembly is f, an f-number of the photographing lens assembly is Fno, and half of a maximum field of view of the photographing lens assembly is HFOV, these parameters have the following values: f=3.16 mm; Fno=2.10; and HFOV=48.5 degrees. 
     In the photographing lens assembly according to the 1st embodiment, when a maximum of refractive indexes of all the lens elements (i.e., the first lens element  110 , the second lens element  120 , the third lens element  130 , the fourth lens element  140 , the fifth lens element  150 , the sixth lens element  160 , and the seventh lens element  170 ) of the photographing lens assembly is Nmax (i.e., the refractive index of the second lens element  120  in the 1st embodiment), the following condition is satisfied: Nmax=1.669. 
     In the photographing lens assembly according to the 1st embodiment, when a central thickness of the fourth lens element  140  is CT4, and a central thickness of the fifth lens element  150  is CT5, the following condition is satisfied: CT4/CT5=0.33. 
     In the photographing lens assembly according to the 1st embodiment, when a curvature radius of the object-side surface  111  of the first lens element  110  is R1, a curvature radius of the image-side surface  112  of the first lens element  110  is R2, a curvature radius of the object-side surface  131  of the third lens element  130  is R5, a curvature radius of the image-side surface  132  of the third lens element  130  is R6, a curvature radius of the object-side surface  141  of the fourth lens element  140  is R7, and a curvature radius of the image-side surface  142  of the fourth lens element  140  is R8, the following conditions are satisfied: (R1+R2)/(R1−R2)=0.79; (R5+R6)/(R5−R6)=1.06; and (R7+R8)/(R7−R8)=3.19. 
     In the photographing lens assembly according to the 1st embodiment, when the focal length of the photographing lens assembly is f, a focal length of the first lens element  110  is f1, a composite focal length of the first lens element  110  and the second lens element  120  is f12, a focal length of the second lens element  120  is f2, a focal length of the third lens element  130  is f3, and a focal length of the fifth lens element  150  is f5, the following conditions are satisfied: f/f1=0.10; f/f12=0.08; |f3/f1|=0.08; |f5/f1|=0.07; and |f/f1|+|f/f2|=0.13. 
     In the photographing lens assembly according to the 1st embodiment, when the focal length of the photographing lens assembly is f, the focal length of the first lens element  110  is f1, the focal length of the second lens element  120  is f2, the focal length of the third lens element  130  is f3, a focal length of the fourth lens element  140  is f4, the focal length of the fifth lens element  150  is f5, a focal length of the sixth lens element  160  is f6, a focal length of the seventh lens element  170  is f7, a focal length of i-th lens element is fi, and a minimum of values of |f/fi| is |f/f|min, the following condition is satisfied: |f/f|min=0.03, wherein i=1-7 (that is, |f/fi|min is a minimum absolute value of a ratio between the focal length of the photographing lens assembly and the focal length of each lens element, and in the 1st embodiment, |f/fi|min=|f/f21). 
       FIG.  19    is a schematic view showing parameters of Y11, Y21, Y31, Y41, Y51 and Y72 of the imaging apparatus according to the 1st embodiment in  FIG.  1   . In the photographing lens assembly according to the 1st embodiment, when a maximum optical effective radius of the object-side surface  111  of the first lens element  110  is Y11, and a maximum optical effective radius of the image-side surface  172  of the seventh lens element  170  is Y72, the following condition is satisfied: Y11/Y72=0.69. 
     In the photographing lens assembly according to the 1st embodiment, when an axial distance between the object-side surface  111  of the first lens element  110  and the image surface  190  is TL, a maximum image height of the photographing lens assembly is ImgH (i.e., half of a diagonal length of an effective photosensitive area of the image sensor  195 ), the focal length of the photographing lens assembly is f, and an entrance pupil diameter of the photographing lens assembly is EPD, the following conditions are satisfied: TL/ImgH=1.58; f/ImgH=0.86; and f/EPD=2.10. 
     In the photographing lens assembly according to the 1st embodiment, when an axial distance between the aperture stop  100  and the image-side surface  172  of the seventh lens element  170  is SD, and an axial distance between the object-side surface  111  of the first lens element  110  and the image-side surface  172  of the seventh lens element  170  is TD, the following condition is satisfied: SD/TD=0.74. 
     Please refer to  FIG.  21    and  FIG.  22   .  FIG.  21    is a schematic view showing parameters of SAGc62 and Yc62 of the imaging apparatus according to the 1st embodiment in  FIG.  1   .  FIG.  22    is a schematic view showing a parameter of Yc72 of the imaging apparatus according to the 1st embodiment in  FIG.  1   . The critical points and related parameters of other embodiments can refer to  FIG.  21    and  FIG.  22   , and are not drawn according to each embodiment, respectively. In the photographing lens assembly according to the 1st embodiment, the image-side surface  162  of the sixth lens element  160  includes at least one critical point (as shown in  FIG.  21   ), and the image-side surface  172  of the seventh lens element  170  includes at least one critical point (as shown in  FIG.  22   ). When a vertical distance between the non-axial critical point on the image-side surface  162  of the sixth lens element  160  and the optical axis is Yc62, and a vertical distance between the non-axial critical point on the image-side surface  172  of the seventh lens element  170  and the optical axis is Yc72, the following conditions are satisfied: Yc62/Yc72=0.02 and 0.93, respectively (the image-side surface  162  of the sixth lens element  160  includes, in order from the optical axis to an off-axis region thereof, two critical points. Only one of the two critical points is labeled in  FIG.  21   .). 
     Please refer to  FIG.  21   , in the photographing lens assembly according to the 1st embodiment, when a displacement in parallel with the optical axis from an axial vertex on the image-side surface  162  of the sixth lens element  160  to the non-axial critical point on the image-side surface  162  of the sixth lens element  160  is SAGc62 (wherein the displacement towards the object side of the photographing lens assembly is negative, and the displacement towards the image side of the photographing lens assembly is positive), and the vertical distance between the non-axial critical point on the image-side surface  162  of the sixth lens element  160  and the optical axis is Yc62, all the non-axial critical points on the image-side surface  162  of the sixth lens element  160  satisfy the following conditions: |SAGc62/Yc62|=0.000 and 0.082, respectively (the image-side surface  162  of the sixth lens element  160  includes, in order from the optical axis to an off-axis region thereof, two critical points. Only one of the two critical points is labeled in  FIG.  21   .). 
       FIG.  20    is a schematic view showing parameters of Dsr3, Dsr4, Dsr5 and Dsr6 of the imaging apparatus according to the 1st embodiment in  FIG.  1   . In the photographing lens assembly according to the 1st embodiment, when an axial distance between the aperture stop  100  and the object-side surface  121  of the second lens element  120  is Dsr3 (if a central point of the aperture stop  100  is closer to the object side than an axial vertex on the object-side surface  121  of the second lens element  120  thereto, Dsr3 is positive; if the central point of the aperture stop  100  is closer to the image side than the axial vertex on the object-side surface  121  of the second lens element  120  thereto, Dsr3 is negative), an axial distance between the aperture stop  100  and the image-side surface  122  of the second lens element  120  is Dsr4 (if the central point of the aperture stop  100  is closer to the object side than an axial vertex on the image-side surface  122  of the second lens element  120  thereto, Dsr4 is positive; if the central point of the aperture stop  100  is closer to the image side than the axial vertex on the image-side surface  122  of the second lens element  120  thereto, Dsr4 is negative), an axial distance between the aperture stop  100  and the object-side surface  131  of the third lens element  130  is Dsr5 (if the central point of the aperture stop  100  is closer to the object side than an axial vertex on the object-side surface  131  of the third lens element  130  thereto, Dsr5 is positive; if the central point of the aperture stop  100  is closer to the image side than the axial vertex on the object-side surface  131  of the third lens element  130  thereto, Dsr5 is negative), and an axial distance between the aperture stop  100  and the image-side surface  132  of the third lens element  130  is Dsr6 (if the central point of the aperture stop  100  is closer to the object side than an axial vertex on the image-side surface  132  of the third lens element  130  thereto, Dsr6 is positive; if the central point of the aperture stop  100  is closer to the image side than the axial vertex on the image-side surface  132  of the third lens element  130  thereto, Dsr6 is negative), the following conditions are satisfied: |Dsr4/Dsr3|=0.50; and |Dsr5/Dsr6|=0.05. 
     In the photographing lens assembly according to the 1st embodiment, when the focal length of the photographing lens assembly is f, a curvature radius of an object-side surface of one of the lens elements of the photographing lens assembly is Rf, and a curvature radius of an image-side surface of the lens element of the photographing lens assembly is Rr, the value of the condition |f/Rf|+|f/Rr| corresponding to each of the first lens element  110  through the seventh lens element  170  is listed in the following table, wherein the curvature radius of the object-side surface  111  of the first lens element  110  is R1, the curvature radius of the image-side surface  112  of the first lens element  110  is R2, a curvature radius of the object-side surface  121  of the second lens element  120  is R3, a curvature radius of the image-side surface  122  of the second lens element  120  is R4, the curvature radius of the object-side surface  131  of the third lens element  130  is R5, the curvature radius of the image-side surface  132  of the third lens element  130  is R6, the curvature radius of the object-side surface  141  of the fourth lens element  140  is R7, the curvature radius of the image-side surface  142  of the fourth lens element  140  is R8, a curvature radius of the object-side surface  151  of the fifth lens element  150  is R9, a curvature radius of the image-side surface  152  of the fifth lens element  150  is R10, a curvature radius of the object-side surface  161  of the sixth lens element  160  is R11, a curvature radius of the image-side surface  162  of the sixth lens element  160  is R12, a curvature radius of the object-side surface  171  of the seventh lens element  170  is R13, and a curvature radius of the image-side surface  172  of the seventh lens element  170  is R14. 
     
       
         
           
               
             
               
                   
               
               
                 1st Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 |f/Rf| + 
                 |f/R1| + |f/R2| 
                 0.19 
                 |f/Rf| + 
                  |f/R9| + |f/R10| 
                 5.48 
               
               
                 |f/Rr| 
                 |f/R3| + |f/R4| 
                 3.24 
                 |f/Rr| 
                 |f/R11| + |f/R12| 
                 0.82 
               
               
                   
                 |f/R5| + |f/R6| 
                 2.32 
                   
                 |f/R13| + |f/R14| 
                 5.34 
               
               
                   
                 |f/R7| + |f/R8| 
                 2.05 
               
               
                   
               
            
           
         
       
     
     The detailed optical data of the 1st embodiment are shown in Table 1 and the aspheric surface data are shown in Table 2 below. 
     
       
         
           
               
             
               
                 TABLE 1 
               
             
            
               
                   
               
               
                 1st Embodiment 
               
               
                 f = 3.16 mm, Fno = 2.10, HFOV = 48.5 deg. 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface # 
                   
                 Curvature Radius 
                 Thickness 
                 Material 
                 Index 
                 Abbe # 
                 Focal Length 
               
               
                   
               
               
                 0 
                 Object 
                 Plano 
                 Infinity 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 1 
                 Lens 1 
                 158.157 
                 ASP 
                 0.567 
                 Plastic 
                 1.534 
                 55.9 
                 31.71 
               
               
                 2 
                   
                 −18.933 
                 ASP 
                 0.177 
                   
                   
                   
                   
               
               
                 3 
                 Lens 2 
                 2.025 
                 ASP 
                 0.234 
                 Plastic 
                 1.669 
                 19.5 
                 −123.36 
               
               
                 4 
                   
                 1.885 
                 ASP 
                 0.235 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 5 
                 Ape. Stop 
                 Plano 
                 0.045 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 6 
                 Lens 3 
                 −45.644 
                 ASP 
                 0.809 
                 Plastic 
                 1.544 
                 56.0 
                 2.65 
               
               
                 7 
                   
                 −1.408 
                 ASP 
                 0.047 
                   
                   
                   
                   
               
               
                 8 
                 Lens 4 
                 4.496 
                 ASP 
                 0.271 
                 Plastic 
                 1.660 
                 20.4 
                 −7.86 
               
               
                 9 
                   
                 2.351 
                 ASP 
                 0.583 
                   
                   
                   
                   
               
               
                 10 
                 Lens 5 
                 −1.942 
                 ASP 
                 0.826 
                 Plastic 
                 1.544 
                 56.0 
                 2.08 
               
               
                 11 
                   
                 −0.822 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                 12 
                 Lens 6 
                 −3.885 
                 ASP 
                 0.394 
                 Plastic 
                 1.582 
                 30.2 
                 −6.69 
               
               
                 13 
                   
                 −1435.341 
                 ASP 
                 0.077 
                   
                   
                   
                   
               
               
                 14 
                 Lens 7 
                 1.974 
                 ASP 
                 0.370 
                 Plastic 
                 1.544 
                 56.0 
                 −3.08 
               
               
                 15 
                   
                 0.846 
                 ASP 
                 0.550 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 16 
                 Filter 
                 Plano 
                 0.210 
                 Glass 
                 1.517 
                 64.2 
                 — 
               
               
                 17 
                   
                 Plano 
                 0.423 
                   
                   
                   
                   
               
               
                 18 
                 Image 
                 Plano 
                 — 
                   
                   
                   
                   
               
               
                   
               
               
                 Reference wavelength is 587.6 nm (d-line). 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 2 
               
               
                   
               
             
            
               
                 Aspheric Coefficients 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface # 
                 1 
                 2 
                 3 
                 4 
                 6 
                 7 
                 8 
               
               
                   
               
               
                    k = 
                 2.0000E+01 
                 −6.1139E+01 
                 −7.0690E+00 
                 −5.1105E+00 
                 −9.8569E+01 
                 −9.3470E−01 
                 −2.4926E+00 
               
               
                  A4 = 
                 2.7873E−02 
                 1.4104E−02 
                 −2.5131E−02 
                 −2.7004E−02 
                 −7.0216E−02 
                 −6.7755E−02 
                 −1.3797E−01 
               
               
                  A6 = 
                 −8.7744E−03 
                 −7.3079E−03 
                 −1.0386E−01 
                 −5.9461E−02 
                 −4.1366E−02 
                 8.7265E−02 
                 1.6648E−01 
               
               
                  A8 = 
                 2.8793E−03 
                 1.5474E−03 
                 4.9355E−02 
                 −2.2357E−02 
                 −7.0742E−02 
                 −3.4976E−01 
                 −2.0573E−01 
               
               
                 A10 = 
                 −8.1547E−04 
                 −2.3336E−04 
                 5.1236E−02 
                 1.5098E−01 
                 −5.0884E−02 
                 4.0691E−01 
                 1.6818E−01 
               
               
                 A12 = 
                 1.0569E−04 
                 1.5712E−05 
                 −2.6645E−02 
                   
                   
                 −2.0630E−01 
                 −7.3799E−02 
               
               
                 A14 = 
                 −4.9960E−06 
                   
                   
                   
                   
                   
                 1.3190E−02 
               
               
                   
               
               
                 Surface # 
                 9 
                 10 
                 11 
                 12 
                 13 
                 14 
                 15 
               
               
                   
               
               
                    k = 
                 −9.7020E+00 
                 −3.2095E+00 
                 −3.6697E+00 
                 1.8923E+00 
                 −9.7199E+01 
                 −4.1236E+00 
                 −4.1385E+00 
               
               
                  A4 = 
                 −6.7612E−02 
                 −1.1572E−01 
                 −2.4088E−01 
                 1.7159E−01 
                 1.2326E−01 
                 −9.0466E−02 
                 −7.0944E−02 
               
               
                  A6 = 
                 9.1266E−02 
                 8.0259E−02 
                 3.2143E−01 
                 −5.2320E−02 
                 −8.6529E−02 
                 1.7272E−02 
                 2.7213E−02 
               
               
                  A8 = 
                 −8.6679E−02 
                 −2.0530E−02 
                 −3.2025E−01 
                 −3.7240E−02 
                 3.0478E−02 
                 −3.0195E−03 
                 −9.0703E−03 
               
               
                 A10 = 
                 5.2329E−02 
                 5.7096E−02 
                 1.9662E−01 
                 3.8657E−02 
                 −6.6829E−03 
                 1.3086E−03 
                 2.0066E−03 
               
               
                 A12 = 
                 −1.7163E−02 
                 −5.2832E−02 
                 −5.9078E−02 
                 −1.4824E−02 
                 8.6325E−04 
                 −3.3174E−04 
                 −2.5708E−04 
               
               
                 A14 = 
                 2.3952E−03 
                 1.8739E−02 
                 7.1682E−03 
                 2.7197E−03 
                 −5.6235E−05 
                 3.6770E−05 
                 1.7240E−05 
               
               
                 A16 = 
                   
                 −2.3637E−03 
                 −1.2583E−04 
                 −1.9656E−04 
                 1.1825E−06 
                 −1.4895E−06 
                 −4.6900E−07 
               
               
                   
               
            
           
         
       
     
     In Table 1, the curvature radius, the thickness and the focal length are shown in millimeters (mm). Surface numbers 0-18 represent the surfaces sequentially arranged from the object side to the image side along the optical axis. In Table 2, k represents the conic coefficient of the equation of the aspheric surface profiles. A4-A16 represent the aspheric coefficients ranging from the 4th order to the 16th order. The tables presented below for each embodiment correspond to schematic parameter and aberration curves of each embodiment, and term definitions of the tables are the same as those in Table 1 and Table 2 of the 1st embodiment. Therefore, an explanation in this regard will not be provided again. 
     Furthermore, in the photographing lens assembly according to the 1st embodiment, two lens elements of the first lens element  110 , the second lens element  120 , the third lens element  130 , the fourth lens element  140 , the fifth lens element  150 , the sixth lens element  160 , and the seventh lens element  170  have the Abbe numbers less than 25.0, which are the second lens element  120  and the fourth lens element  140 . 
     Please refer to  FIG.  19   . In the photographing lens assembly according to the 1st embodiment, when the maximum optical effective radius of the object-side surface  111  of the first lens element  110  is Y11, a maximum optical effective radius of the object-side surface  121  of the second lens element  120  is Y21, a maximum optical effective radius of the object-side surface  131  of the third lens element  130  is Y31, a maximum optical effective radius of the object-side surface  141  of the fourth lens element  140  is Y41, and a maximum optical effective radius of the object-side surface  151  of the fifth lens element  150  is Y51, the following conditions are satisfied: Y11&gt;Y21; Y11&gt;Y31; Y11&gt;Y41; and Y11&gt;Y51. 
     2nd Embodiment 
       FIG.  3    is a schematic view of an imaging apparatus according to the 2nd embodiment of the present disclosure.  FIG.  4    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 2nd embodiment. In  FIG.  3   , the imaging apparatus includes a photographing lens assembly (its reference numeral is omitted) and an image sensor  295 . The photographing lens assembly includes, in order from an object side to an image side, a first lens element  210 , a second lens element  220 , an aperture stop  200 , a third lens element  230 , a fourth lens element  240 , a fifth lens element  250 , a sixth lens element  260 , a seventh lens element  270 , a filter  280  and an image surface  290 . The image sensor  295  is disposed on the image surface  290  of the photographing lens assembly. The photographing lens assembly includes seven lens elements ( 210 ,  220 ,  230 ,  240 ,  250 ,  260  and  270 ) without additional one or more lens elements inserted between the first lens element  210  and the seventh lens element  270 , and there is an air gap in a paraxial region between each of adjacent lens elements of the seven lens elements ( 210 - 270 ). 
     The first lens element  210  with negative refractive power has an object-side surface  211  being concave in a paraxial region thereof and an image-side surface  212  being convex in a paraxial region thereof. The first lens element  210  is made of a plastic material, and has the object-side surface  211  and the image-side surface  212  being both aspheric. Furthermore, each of the object-side surface  211  and the image-side surface  212  of the first lens element  210  includes at least one inflection point. 
     The second lens element  220  with positive refractive power has an object-side surface  221  being convex in a paraxial region thereof and an image-side surface  222  being concave in a paraxial region thereof. The second lens element  220  is made of a plastic material, and has the object-side surface  221  and the image-side surface  222  being both aspheric. 
     The third lens element  230  with positive refractive power has an object-side surface  231  being concave in a paraxial region thereof and an image-side surface  232  being convex in a paraxial region thereof. The third lens element  230  is made of a plastic material, and has the object-side surface  231  and the image-side surface  232  being both aspheric. 
     The fourth lens element  240  with negative refractive power has an object-side surface  241  being convex in a paraxial region thereof and an image-side surface  242  being concave in a paraxial region thereof. The fourth lens element  240  is made of a plastic material, and has the object-side surface  241  and the image-side surface  242  being both aspheric. 
     The fifth lens element  250  with positive refractive power has an object-side surface  251  being concave in a paraxial region thereof and an image-side surface  252  being convex in a paraxial region thereof. The fifth lens element  250  is made of a plastic material, and has the object-side surface  251  and the image-side surface  252  being both aspheric. Furthermore, each of the object-side surface  251  and the image-side surface  252  of the fifth lens element  250  includes at least one inflection point. 
     The sixth lens element  260  with negative refractive power has an object-side surface  261  being concave in a paraxial region thereof and an image-side surface  262  being convex in a paraxial region thereof. The sixth lens element  260  is made of a plastic material, and has the object-side surface  261  and the image-side surface  262  being both aspheric. Furthermore, each of the object-side surface  261  and the image-side surface  262  of the sixth lens element  260  includes at least one inflection point, and the image-side surface  262  of the sixth lens element  260  includes at least one convex shape in an off-axis region thereof. 
     The seventh lens element  270  with negative refractive power has an object-side surface  271  being convex in a paraxial region thereof and an image-side surface  272  being concave in a paraxial region thereof. The seventh lens element  270  is made of a plastic material, and has the object-side surface  271  and the image-side surface  272  being both aspheric. Furthermore, each of the object-side surface  271  and the image-side surface  272  of the seventh lens element  270  includes at least one inflection point, and the image-side surface  272  of the seventh lens element  270  includes at least one convex shape in an off-axis region thereof. 
     The filter  280  is made of a glass material and located between the seventh lens element  270  and the image surface  290 , and will not affect the focal length of the photographing lens assembly. 
     The detailed optical data of the 2nd embodiment are shown in Table 3 and the aspheric surface data are shown in Table 4 below. 
     
       
         
           
               
             
               
                 TABLE 3 
               
             
            
               
                   
               
               
                 2nd Embodiment 
               
               
                 f = 3.12 mm, Fno = 2.30, HFOV = 49.2 deg. 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface # 
                   
                 Curvature Radius 
                 Thickness 
                 Material 
                 Index 
                 Abbe # 
                 Focal Length 
               
               
                   
               
               
                 0 
                 Object 
                 Plano 
                 Infinity 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 1 
                 Lens 1 
                 −10.455 
                 ASP 
                 0.567 
                 Plastic 
                 1.534 
                 55.9 
                 −36.76 
               
               
                 2 
                   
                 −22.800 
                 ASP 
                 0.177 
                   
                   
                   
                   
               
               
                 3 
                 Lens 2 
                 3.605 
                 ASP 
                 0.235 
                 Plastic 
                 1.669 
                 19.5 
                 18.78 
               
               
                 4 
                   
                 4.925 
                 ASP 
                 0.235 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 5 
                 Ape. Stop 
                 Plano 
                 0.045 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 6 
                 Lens 3 
                 −45.613 
                 ASP 
                 0.737 
                 Plastic 
                 1.544 
                 56.0 
                 2.65 
               
               
                 7 
                   
                 −1.408 
                 ASP 
                 0.037 
                   
                   
                   
                   
               
               
                 8 
                 Lens 4 
                 4.217 
                 ASP 
                 0.271 
                 Plastic 
                 1.660 
                 20.4 
                 −6.21 
               
               
                 9 
                   
                 2.025 
                 ASP 
                 0.583 
                   
                   
                   
                   
               
               
                 10 
                 Lens 5 
                 −1.932 
                 ASP 
                 0.742 
                 Plastic 
                 1.544 
                 56.0 
                 1.99 
               
               
                 11 
                   
                 −0.788 
                 ASP 
                 0.032 
                   
                   
                   
                   
               
               
                 12 
                 Lens 6 
                 −3.229 
                 ASP 
                 0.394 
                 Plastic 
                 1.582 
                 30.2 
                 −5.55 
               
               
                 13 
                   
                 −9077.218 
                 ASP 
                 0.269 
                   
                   
                   
                   
               
               
                 14 
                 Lens 7 
                 1.936 
                 ASP 
                 0.283 
                 Plastic 
                 1.544 
                 56.0 
                 −3.26 
               
               
                 15 
                   
                 0.878 
                 ASP 
                 0.550 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 16 
                 Filter 
                 Plano 
                 0.210 
                 Glass 
                 1.517 
                 64.2 
                 — 
               
               
                 17 
                   
                 Plano 
                 0.481 
                   
                   
                   
                   
               
               
                 18 
                 Image 
                 Plano 
                 — 
                   
                   
                   
                   
               
               
                   
               
               
                 Reference wavelength is 587.6 nm (d-line). 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 4 
               
               
                   
               
               
                 Aspheric Coefficients 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface # 
                 1 
                 2 
                 3 
                 4 
                 6 
                 7 
                 8 
               
               
                   
               
               
                 k =  
                 −2.4653E+01 
                 −6.1316E+01 
                 −7.0729E+00 
                 −5.1057E+00 
                 −9.8569E+01 
                 −9.3688E−01 
                 −2.5305E+00 
               
               
                 A4 =  
                   4.0920E−02 
                   6.1030E−02 
                 −5.0886E−03 
                 −3.1072E−03 
                 −6.0179E−02 
                   5.0482E−03 
                 −1.0167E−01 
               
               
                 A6 =  
                 −1.6993E−02 
                 −7.0710E−02 
                 −1.5482E−01 
                 −1.6211E−01 
                 −7.3118E−02 
                 −1.7671E−01 
                   6.0455E−02 
               
               
                 A8 =  
                   6.4816E−03 
                   3.3260E−02 
                   7.2983E−02 
                   1.9260E−01 
                 −7.2839E−02 
                   1.9012E−01 
                 −3.3531E−02 
               
               
                 A10 =  
                 −2.4547E−03 
                 −8.6303E−03 
                   6.9565E−02 
                 −3.8814E−02 
                 −7.0862E−02 
                 −1.8841E−01 
                   2.5211E−02 
               
               
                 A12 =  
                   4.3491E−04 
                   1.2154E−03 
                 −3.7959E−02 
                   
                   
                   2.9148E−02 
                 −1.8248E−02 
               
               
                 A14 =  
                 −1.6554E−05 
                   
                   
                   
                   
                   
                   5.5491E−03 
               
               
                   
               
               
                 Surface # 
                 9 
                 10 
                 11 
                 12 
                 13 
                 14 
                 15 
               
               
                   
               
               
                 k =  
                 −8.3658E+00 
                 −3.2055E+00 
                 −3.8467E+00 
                   1.8942E+00 
                 −9.7199E+01 
                 −5.7316E+00 
                 −4.1385E+00 
               
               
                 A4 =  
                 −6.7642E−02 
                 −1.8424E−01 
                 −3.9248E−01 
                   1.6992E−01 
                   6.1043E−02 
                 −1.2456E−01 
                 −8.4247E−02 
               
               
                 A6 =  
                   9.1711E−02 
                   1.5291E−01 
                   6.2726E−01 
                 −4.5392E−02 
                 −5.1420E−02 
                   5.9353E−02 
                   3.5328E−02 
               
               
                 A8 =  
                 −8.7922E−02 
                 −8.3009E−02 
                 −7.4175E−01 
                 −8.6726E−02 
                   1.4121E−02 
                 −2.1154E−02 
                 −1.1041E−02 
               
               
                 A10 =  
                   5.3739E−02 
                   1.1961E−01 
                   5.2700E−01 
                   9.5655E−02 
                 −1.0385E−03 
                   4.8139E−03 
                   2.1873E−03 
               
               
                 A12 =  
                 −1.7873E−02 
                 −8.4433E−02 
                 −1.8046E−01 
                 −4.3475E−02 
                 −2.4058E−04 
                 −6.2599E−04 
                 −2.6003E−04 
               
               
                 A14 =  
                   2.5271E−03 
                   2.7156E−02 
                   2.3110E−02 
                   9.7742E−03 
                   5.3404E−05 
                   4.2626E−05 
                   1.6853E−05 
               
               
                 A16 =  
                   
                 −3.4967E−03 
                   3.0233E−04 
                 −8.9610E−04 
                 −3.1744E−06 
                 −1.1859E−06 
                 −4.5698E−07 
               
               
                   
               
            
           
         
       
     
     In the 2nd embodiment, the equation of the aspheric surface profiles of the aforementioned lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the 1st embodiment with corresponding values for the 2nd embodiment, so an explanation in this regard will not be provided again. 
     Moreover, these parameters can be calculated from Table 3 and Table 4 as the following values and satisfy the following conditions: 
     
       
         
           
               
             
               
                   
               
               
                 2nd Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 f [mm] 
                 3.12 
                 |f/f1| + |f/f2| 
                 0.25 
               
               
                   
                 Fno. 
                 2.30 
                 |f/fi|/min 
                 0.08 
               
               
                   
                 HFOV [deg.] 
                 49.2 
                 Y11/Y72 
                 0.58 
               
               
                   
                 Nmax 
                 1.669 
                 TL/ImgH 
                 1.60 
               
               
                   
                 CT4/CT5 
                 0.36 
                 f/ImgH 
                 0.85 
               
               
                   
                 (R1 + R2)/(R1 − R2) 
                 −2.69 
                 f/EPD 
                 2.30 
               
               
                   
                 (R5 + R6)/(R5 − R6) 
                 1.06 
                 SD/TD 
                 0.74 
               
               
                   
                 (R7 + R8)/(R7 − R8) 
                 2.85 
                 Yc62/Yc72 
                 0.68 
               
               
                   
                 f/f1  
                 −0.08 
                 |SAGc62/Yc62| 
                 0.022 
               
               
                   
                 f/f12 
                 0.08 
                 |Dsr4/Dsr3| 
                 0.50 
               
               
                   
                 |f3/f1| 
                 0.07 
                 |Dsr5/Dsr6| 
                 0.06 
               
               
                   
                 |f5/f1| 
                 0.05 
               
               
                   
                   
               
            
           
         
       
     
     In the photographing lens assembly according to the 2nd embodiment, when the focal length of the photographing lens assembly is f, a curvature radius of an object-side surface of one of the lens elements of the photographing lens assembly is Rf, and a curvature radius of an image-side surface of the lens element of the photographing lens assembly is Rr, the value of the condition |f/Rf|+|f/Rr| corresponding to each of the first lens element  210  through the seventh lens element  270  is listed in the following table, wherein term definitions of the parameters related to each surface of the lens elements are the same as those of the 1st embodiment. Therefore, an explanation in this regard will not be provided again. 
     
       
         
           
               
             
               
                   
               
               
                 2nd Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 |f/Rf| + |f/Rr| 
                 |f/R1| + |f/R2| 
                 0.44 
                 |f/Rf| + |f/Rr| 
                  |f/R9| + |f/R10| 
                 5.57 
               
               
                   
                 |f/R3| + |f/R4| 
                 1.50 
                   
                 |f/R11| + |f/R12| 
                 0.97 
               
               
                   
                 |f/R5| + |f/R6| 
                 2.28 
                   
                 |f/R13| + |f/R14| 
                 5.16 
               
               
                   
                 |f/R7| + |f/R8| 
                 2.28 
               
               
                   
               
            
           
         
       
     
     Furthermore, in the photographing lens assembly according to the 2nd embodiment, two lens elements of the first lens element  210 , the second lens element  220 , the third lens element  230 , the fourth lens element  240 , the fifth lens element  250 , the sixth lens element  260 , and the seventh lens element  270  have the Abbe numbers less than 25.0, which are the second lens element  220  and the fourth lens element  240 . 
     In the photographing lens assembly according to the 2nd embodiment, when a maximum optical effective radius of the object-side surface  211  of the first lens element  210  is Y11, a maximum optical effective radius of the object-side surface  221  of the second lens element  220  is Y21, a maximum optical effective radius of the object-side surface  231  of the third lens element  230  is Y31, a maximum optical effective radius of the object-side surface  241  of the fourth lens element  240  is Y41, and a maximum optical effective radius of the object-side surface  251  of the fifth lens element  250  is Y51, the following conditions are satisfied: Y11&gt;Y21; Y11&gt;Y31; Y11&gt;Y41; and Y11&gt;Y51. 
     3rd Embodiment 
       FIG.  5    is a schematic view of an imaging apparatus according to the 3rd embodiment of the present disclosure.  FIG.  6    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 3rd embodiment. In  FIG.  5   , the imaging apparatus includes a photographing lens assembly (its reference numeral is omitted) and an image sensor  395 . The photographing lens assembly includes, in order from an object side to an image side, a first lens element  310 , a second lens element  320 , an aperture stop  300 , a third lens element  330 , a fourth lens element  340 , a fifth lens element  350 , a sixth lens element  360 , a seventh lens element  370 , a filter  380  and an image surface  390 . The image sensor  395  is disposed on the image surface  390  of the photographing lens assembly. The photographing lens assembly includes seven lens elements ( 310 ,  320 ,  330 ,  340 ,  350 ,  360  and  370 ) without additional one or more lens elements inserted between the first lens element  310  and the seventh lens element  370 , and there is an air gap in a paraxial region between each of adjacent lens elements of the seven lens elements ( 310 - 370 ). 
     The first lens element  310  with positive refractive power has an object-side surface  311  being concave in a paraxial region thereof and an image-side surface  312  being convex in a paraxial region thereof. The first lens element  310  is made of a plastic material, and has the object-side surface  311  and the image-side surface  312  being both aspheric. Furthermore, the object-side surface  311  of the first lens element  310  includes at least one inflection point. 
     The second lens element  320  with negative refractive power has an object-side surface  321  being convex in a paraxial region thereof and an image-side surface  322  being concave in a paraxial region thereof. The second lens element  320  is made of a plastic material, and has the object-side surface  321  and the image-side surface  322  being both aspheric. 
     The third lens element  330  with positive refractive power has an object-side surface  331  being convex in a paraxial region thereof and an image-side surface  332  being convex in a paraxial region thereof. The third lens element  330  is made of a glass material, and has the object-side surface  331  and the image-side surface  332  being both aspheric. 
     The fourth lens element  340  with negative refractive power has an object-side surface  341  being convex in a paraxial region thereof and an image-side surface  342  being concave in a paraxial region thereof. The fourth lens element  340  is made of a plastic material, and has the object-side surface  341  and the image-side surface  342  being both aspheric. 
     The fifth lens element  350  with positive refractive power has an object-side surface  351  being concave in a paraxial region thereof and an image-side surface  352  being convex in a paraxial region thereof. The fifth lens element  350  is made of a plastic material, and has the object-side surface  351  and the image-side surface  352  being both aspheric. Furthermore, each of the object-side surface  351  and the image-side surface  352  of the fifth lens element  350  includes at least one inflection point. 
     The sixth lens element  360  with negative refractive power has an object-side surface  361  being concave in a paraxial region thereof and an image-side surface  362  being convex in a paraxial region thereof. The sixth lens element  360  is made of a plastic material, and has the object-side surface  361  and the image-side surface  362  being both aspheric. Furthermore, each of the object-side surface  361  and the image-side surface  362  of the sixth lens element  360  includes at least one inflection point, and the image-side surface  362  of the sixth lens element  360  includes at least one convex shape in an off-axis region thereof. 
     The seventh lens element  370  with negative refractive power has an object-side surface  371  being convex in a paraxial region thereof and an image-side surface  372  being concave in a paraxial region thereof. The seventh lens element  370  is made of a plastic material, and has the object-side surface  371  and the image-side surface  372  being both aspheric. Furthermore, each of the object-side surface  371  and the image-side surface  372  of the seventh lens element  370  includes at least one inflection point, and the image-side surface  372  of the seventh lens element  370  includes at least one convex shape in an off-axis region thereof. 
     The filter  380  is made of a glass material and located between the seventh lens element  370  and the image surface  390 , and will not affect the focal length of the photographing lens assembly. 
     The detailed optical data of the 3rd embodiment are shown in Table 5 and the aspheric surface data are shown in Table 6 below. 
     
       
         
           
               
             
               
                 TABLE 5 
               
             
            
               
                   
               
               
                 3rd Embodiment 
               
               
                 f = 3.16 mm, Fno = 2.10, HFOV = 48.4 deg. 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface 
                   
                   
                   
                   
                   
                   
                 Focal 
               
               
                 # 
                   
                 Curvature Radius 
                 Thickness 
                 Material 
                 Index 
                 Abbe # 
                 Length 
               
               
                   
               
               
                  0 
                 Object 
                 Plano 
                 Infinity 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  1 
                 Lens 1 
                 −49.325 
                 ASP 
                 0.558 
                 Plastic 
                 1.534 
                 55.9 
                 24.51 
               
               
                  2 
                   
                 −10.382 
                 ASP 
                 0.177 
                   
                   
                   
                   
               
               
                  3 
                 Lens 2 
                   1.755 
                 ASP 
                 0.234 
                 Plastic 
                 1.669 
                 19.5 
                 −39.58  
               
               
                  4 
                   
                   1.558 
                 ASP 
                 0.235 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                  5 
                 Ape. Stop 
                 Plano 
                 0.045 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  6 
                 Lens 3 
                  53.419 
                 ASP 
                 0.810 
                 Glass 
                 1.540 
                 59.7 
                  2.63 
               
               
                  7 
                   
                  −1.453 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                  8 
                 Lens 4 
                   4.450 
                 ASP 
                 0.271 
                 Plastic 
                 1.660 
                 20.4 
                 −8.01 
               
               
                  9 
                   
                   2.357 
                 ASP 
                 0.583 
                   
                   
                   
                   
               
               
                 10 
                 Lens 5 
                  −1.924 
                 ASP 
                 0.706 
                 Plastic 
                 1.544 
                 56.0 
                  2.25 
               
               
                 11 
                   
                  −0.846 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                 12 
                 Lens 6 
                  −3.794 
                 ASP 
                 0.394 
                 Plastic 
                 1.634 
                 23.8 
                 −7.14 
               
               
                 13 
                   
                 −24.446 
                 ASP 
                 0.112 
                   
                   
                   
                   
               
               
                 14 
                 Lens 7 
                   1.974 
                 ASP 
                 0.430 
                 Plastic 
                 1.544 
                 56.0 
                 −3.08 
               
               
                 15 
                   
                   0.837 
                 ASP 
                 0.550 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 16 
                 Filter 
                 Plano 
                 0.210 
                 Glass 
                 1.517 
                 64.2 
                 — 
               
               
                 17 
                   
                 Plano 
                 0.368 
                   
                   
                   
                   
               
               
                 18 
                 Image 
                 Plano 
                 — 
               
               
                   
               
               
                 Reference wavelength is 587.6 nm (d-line). 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 6 
               
               
                   
               
               
                 Aspheric Coefficients 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface # 
                 1 
                 2 
                 3 
                 4 
                 6 
                 7 
                 8 
               
               
                   
               
               
                 k =  
                   2.0000E+01 
                 −3.8715E+01 
                 −7.0690E+00 
                 −5.1105E+00 
                 −3.8715E+01 
                 −9.3470E−01 
                 −2.4926E+00 
               
               
                 A4 =  
                   3.3738E−02 
                   1.4858E−02 
                 −1.1324E−02 
                 −1.3987E−02 
                 −7.2828E−02 
                 −5.3670E−02 
                 −1.2255E−01 
               
               
                 A6 =  
                 −1.2960E−02 
                 −7.6377E−03 
                 −1.5783E−01 
                 −1.1240E−01 
                 −3.3601E−03 
                   2.7671E−02 
                   1.3388E−01 
               
               
                 A8 =  
                   4.0308E−03 
                   1.5201E−03 
                   1.3132E−01 
                   6.6394E−02 
                 −1.6633E−01 
                 −2.2267E−01 
                 −1.5527E−01 
               
               
                 A10 =  
                 −1.0065E−03 
                 −1.9485E−04 
                 −1.0980E−02 
                   8.9283E−02 
                   2.5881E−02 
                   2.7489E−01 
                   1.2900E−01 
               
               
                 A12 =  
                   1.2818E−04 
                   1.1300E−05 
                 −6.1983E−03 
                   
                   
                 −1.5725E−01 
                 −5.9155E−02 
               
               
                 A14 =  
                 −6.2496E−06 
                   
                   
                   
                   
                   
                   1.1076E−02 
               
               
                   
               
               
                 Surface # 
                 9 
                 10 
                 11 
                 12 
                 13 
                 14 
                 15 
               
               
                   
               
               
                 k =  
                 −9.2478E+00 
                 −3.2095E+00 
                 −3.7826E+00 
                   1.8923E+00 
                 −3.8715E+01 
                 −7.3601E+00 
                 −4.1385E+00 
               
               
                 A4 =  
                 −6.7612E−02 
                 −1.2943E−01 
                 −2.4191E−01 
                   2.2639E−01 
                   1.5239E−01 
                 −6.8036E−02 
                 −7.5500E−02 
               
               
                 A6 =  
                   9.1266E−02 
                   1.1902E−01 
                   3.4385E−01 
                 −1.1808E−01 
                 −1.1226E−01 
                 −1.1967E−03 
                   2.7808E−02 
               
               
                 A8 =  
                 −8.6679E−02 
                 −6.7130E−02 
                 −3.5096E−01 
                   6.1122E−03 
                   4.2195E−02 
                   4.8684E−03 
                 −8.9527E−03 
               
               
                 A10 =  
                   5.2329E−02 
                   8.1411E−02 
                   2.2176E−01 
                   2.2085E−02 
                 −1.0017E−02 
                 −4.2592E−04 
                   1.9838E−03 
               
               
                 A12 =  
                 −1.7163E−02 
                 −5.7365E−02 
                 −6.8650E−02 
                 −1.1499E−02 
                   1.4031E−03 
                 −1.3749E−04 
                 −2.5620E−04 
               
               
                 A14 =  
                   2.3952E−03 
                   1.8801E−02 
                   8.6083E−03 
                   2.4407E−03 
                 −9.9111E−05 
                   2.7045E−05 
                   1.7240E−05 
               
               
                 A16 =  
                   
                 −2.3718E−03 
                 −1.6689E−04 
                 −1.9477E−04 
                   2.2598E−06 
                 −1.3639E−06 
                 −4.6900E−07 
               
               
                   
               
            
           
         
       
     
     In the 3rd embodiment, the equation of the aspheric surface profiles of the aforementioned lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the 1st embodiment with corresponding values for the 3rd embodiment, so an explanation in this regard will not be provided again. 
     Moreover, these parameters can be calculated from Table 5 and Table 6 as the following values and satisfy the following conditions: 
     
       
         
           
               
             
               
                   
               
               
                 3rd Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                 f [mm] 
                 3.16 
                 |f/f1| + |f/f2| 
                 0.21 
               
               
                 Fno. 
                 2.10 
                 |f/fi|min 
                 0.08 
               
               
                 HFOV [deg.] 
                 48.4 
                 Y11/Y72 
                 0.70 
               
               
                 Nmax 
                 1.669 
                 TL/ImgH 
                 1.55 
               
               
                 CT4/CT5 
                 0.38 
                 f/ImgH 
                 0.85 
               
               
                 (R1 + R2)/(R1 − R2) 
                 1.53 
                 f/EPD 
                 2.10 
               
               
                 (R5 + R6)/(R5 − R6) 
                 0.95 
                 SD/TD 
                 0.74 
               
               
                 (R7 + R8)/(R7 − R8) 
                 3.25 
                 Yc62/Yc72 
                 0.16, 0.88 
               
               
                 f/f1 
                 0.13 
                 |SAGc62/Yc62| 
                 0.003, 0.071 
               
               
                 f/f12 
                 0.06 
                 |Dsr4/Dsr3| 
                 0.50 
               
               
                 |f3/f1| 
                 0.11 
                 |Dsr5/Dsr6| 
                 0.05 
               
               
                 |f5/f1| 
                 0.09 
               
               
                   
               
            
           
         
       
     
     In the photographing lens assembly according to the 3rd embodiment, when the focal length of the photographing lens assembly is f, a curvature radius of an object-side surface of one of the lens elements of the photographing lens assembly is Rf, and a curvature radius of an image-side surface of the lens element of the photographing lens assembly is Rr, the value of the condition |f/Rf|+|f/Rr| corresponding to each of the first lens element  310  through the seventh lens element  370  is listed in the following table, wherein term definitions of the parameters related to each surface of the lens elements are the same as those of the 1st embodiment. Therefore, an explanation in this regard will not be provided again. 
     
       
         
           
               
             
               
                   
               
               
                 3rd Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 |f/Rf| + |f/Rr| 
                 |f/R1| + |f/R2| 
                 0.37 
                 |f/Rf| + |f/Rr| 
                  |f/R9| + |f/R10| 
                 5.38 
               
               
                   
                 |f/R3| + |f/R4| 
                 3.83 
                   
                 |f/R11| + |f/R12| 
                 0.96 
               
               
                   
                 |f/R5| + |f/R6| 
                 2.23 
                   
                 |f/R13| + |f/R14| 
                 5.38 
               
               
                   
                 |f/R7| + |f/R8| 
                 2.05 
               
               
                   
               
            
           
         
       
     
     Furthermore, in the photographing lens assembly according to the 3rd embodiment, three lens elements of the first lens element  310 , the second lens element  320 , the third lens element  330 , the fourth lens element  340 , the fifth lens element  350 , the sixth lens element  360 , and the seventh lens element  370  have the Abbe numbers less than 25.0, which are the second lens element  320 , the fourth lens element  340  and the sixth lens element  360 . 
     In the photographing lens assembly according to the 3nd embodiment, when a maximum optical effective radius of the object-side surface  311  of the first lens element  310  is Y11, a maximum optical effective radius of the object-side surface  321  of the second lens element  320  is Y21, a maximum optical effective radius of the object-side surface  331  of the third lens element  330  is Y31, a maximum optical effective radius of the object-side surface  341  of the fourth lens element  340  is Y41, and a maximum optical effective radius of the object-side surface  351  of the fifth lens element  350  is Y51, the following conditions are satisfied: Y11&gt;Y21; Y11&gt;Y31; Y11&gt;Y41; and Y11&gt;Y51. 
     4th Embodiment 
       FIG.  7    is a schematic view of an imaging apparatus according to the 4th embodiment of the present disclosure.  FIG.  8    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 4th embodiment. In  FIG.  7   , the imaging apparatus includes a photographing lens assembly (its reference numeral is omitted) and an image sensor  495 . The photographing lens assembly includes, in order from an object side to an image side, a first lens element  410 , a second lens element  420 , an aperture stop  400 , a third lens element  430 , a fourth lens element  440 , a fifth lens element  450 , a sixth lens element  460 , a seventh lens element  470 , a filter  480  and an image surface  490 . The image sensor  495  is disposed on the image surface  490  of the photographing lens assembly. The photographing lens assembly includes seven lens elements ( 410 ,  420 ,  430 ,  440 ,  450 ,  460  and  470 ) without additional one or more lens elements inserted between the first lens element  410  and the seventh lens element  470 , and there is an air gap in a paraxial region between each of adjacent lens elements of the seven lens elements ( 410 - 470 ). 
     The first lens element  410  with positive refractive power has an object-side surface  411  being convex in a paraxial region thereof and an image-side surface  412  being convex in a paraxial region thereof. The first lens element  410  is made of a plastic material, and has the object-side surface  411  and the image-side surface  412  being both aspheric. Furthermore, the object-side surface  411  of the first lens element  410  includes at least one inflection point. 
     The second lens element  420  with positive refractive power has an object-side surface  421  being convex in a paraxial region thereof and an image-side surface  422  being concave in a paraxial region thereof. The second lens element  420  is made of a plastic material, and has the object-side surface  421  and the image-side surface  422  being both aspheric. 
     The third lens element  430  with positive refractive power has an object-side surface  431  being concave in a paraxial region thereof and an image-side surface  432  being convex in a paraxial region thereof. The third lens element  430  is made of a glass material, and has the object-side surface  431  and the image-side surface  432  being both aspheric. 
     The fourth lens element  440  with negative refractive power has an object-side surface  441  being concave in a paraxial region thereof and an image-side surface  442  being concave in a paraxial region thereof. The fourth lens element  440  is made of a plastic material, and has the object-side surface  441  and the image-side surface  442  being both aspheric. 
     The fifth lens element  450  with positive refractive power has an object-side surface  451  being concave in a paraxial region thereof and an image-side surface  452  being convex in a paraxial region thereof. The fifth lens element  450  is made of a plastic material, and has the object-side surface  451  and the image-side surface  452  being both aspheric. Furthermore, each of the object-side surface  451  and the image-side surface  452  of the fifth lens element  450  includes at least one inflection point. 
     The sixth lens element  460  with negative refractive power has an object-side surface  461  being concave in a paraxial region thereof and an image-side surface  462  being convex in a paraxial region thereof. The sixth lens element  460  is made of a plastic material, and has the object-side surface  461  and the image-side surface  462  being both aspheric. Furthermore, each of the object-side surface  461  and the image-side surface  462  of the sixth lens element  460  includes at least one inflection point, and the image-side surface  462  of the sixth lens element  460  includes at least one convex shape in an off-axis region thereof. 
     The seventh lens element  470  with negative refractive power has an object-side surface  471  being convex in a paraxial region thereof and an image-side surface  472  being concave in a paraxial region thereof. The seventh lens element  470  is made of a plastic material, and has the object-side surface  471  and the image-side surface  472  being both aspheric. Furthermore, each of the object-side surface  471  and the image-side surface  472  of the seventh lens element  470  includes at least one inflection point, and the image-side surface  472  of the seventh lens element  470  includes at least one convex shape in an off-axis region thereof. 
     The filter  480  is made of a glass material and located between the seventh lens element  470  and the image surface  490 , and will not affect the focal length of the photographing lens assembly. 
     The detailed optical data of the 4th embodiment are shown in Table 7 and the aspheric surface data are shown in Table 8 below. 
     
       
         
           
               
             
               
                 TABLE 7 
               
             
            
               
                   
               
               
                 4th Embodiment 
               
               
                 f = 3.14 mm, Fno = 2.10, HFOV = 48.3 deg. 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface 
                   
                   
                   
                   
                   
                   
                 Focal 
               
               
                 # 
                   
                 Curvature Radius 
                 Thickness 
                 Material 
                 Index 
                 Abbe # 
                 Length 
               
               
                   
               
               
                  0 
                 Object 
                 Plano 
                 Infinity 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  1 
                 Lens 1 
                  90.074 
                 ASP 
                 0.556 
                 Plastic 
                 1.534 
                 55.9 
                 20.11 
               
               
                  2 
                   
                 −12.159 
                 ASP 
                 0.138 
                   
                   
                   
                   
               
               
                  3 
                 Lens 2 
                   1.816 
                 ASP 
                 0.249 
                 Plastic 
                 1.669 
                 19.5 
                 415.21  
               
               
                  4 
                   
                   1.728 
                 ASP 
                 0.223 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                  5 
                 Ape. Stop 
                 Plano 
                 0.066 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  6 
                 Lens 3 
                 −50.946 
                 ASP 
                 0.790 
                 Glass 
                 1.583 
                 46.5 
                  2.32 
               
               
                  7 
                   
                  −1.324 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                  8 
                 Lens 4 
                 −11.343 
                 ASP 
                 0.357 
                 Plastic 
                 1.660 
                 20.4 
                 −4.89 
               
               
                  9 
                   
                   4.560 
                 ASP 
                 0.500 
                   
                   
                   
                   
               
               
                 10 
                 Lens 5 
                  −1.802 
                 ASP 
                 0.759 
                 Plastic 
                 1.544 
                 56.0 
                  2.18 
               
               
                 11 
                   
                  −0.822 
                 ASP 
                 0.031 
                   
                   
                   
                   
               
               
                 12 
                 Lens 6 
                  −3.599 
                 ASP 
                 0.476 
                 Plastic 
                 1.634 
                 23.8 
                 −7.10 
               
               
                 13 
                   
                 −18.907 
                 ASP 
                 0.069 
                   
                   
                   
                   
               
               
                 14 
                 Lens 7 
                   1.978 
                 ASP 
                 0.446 
                 Plastic 
                 1.544 
                 56.0 
                 −3.18 
               
               
                 15 
                   
                   0.850 
                 ASP 
                 0.550 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 16 
                 Filter 
                 Plano 
                 0.210 
                 Glass 
                 1.517 
                 64.2 
                 — 
               
               
                 17 
                   
                 Plano 
                 0.370 
                   
                   
                   
                   
               
               
                 18 
                 Image 
                 Plano 
                 — 
               
               
                   
               
               
                 Reference wavelength is 587.6 nm (d-line). 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 8 
               
               
                   
               
               
                 Aspheric Coefficients 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface # 
                 1 
                 2 
                 3 
                 4 
                 6 
                 7 
                 8 
               
               
                   
               
               
                 k =  
                   8.1690E+00 
                 −3.8715E+01 
                 −6.4959E+00 
                 −5.1467E+00 
                   2.0000E+01 
                 −9.9424E−01 
                 −2.9357E+01 
               
               
                 A4 =  
                   3.3315E−02 
                   1.1991E−02 
                 −4.9351E−03 
                   1.9128E−03 
                 −7.9186E−02 
                   2.8048E−02 
                 −2.9600E−02 
               
               
                 A6 =  
                 −1.2578E−02 
                 −4.7974E−03 
                 −1.2953E−01 
                 −1.8222E−01 
                 −1.4299E−02 
                 −2.3453E−01 
                 −6.6380E−02 
               
               
                 A8 =  
                   4.3032E−03 
                   6.1850E−04 
                   7.6930E−02 
                   1.9095E−01 
                 −1.8732E−01 
                   1.3326E−01 
                   1.3860E−02 
               
               
                 A10 =  
                 −1.1687E−03 
                 −6.5396E−05 
                   2.6382E−02 
                 −1.0178E−02 
                 −1.8226E−02 
                   4.0098E−02 
                   1.1755E−01 
               
               
                 A12 =  
                   1.5297E−04 
                   5.3852E−06 
                 −1.5962E−02 
                   
                   
                 −1.0827E−01 
                 −1.1708E−01 
               
               
                 A14 =  
                 −7.2084E−06 
                   
                   
                   
                   
                   
                   3.3426E−02 
               
               
                   
               
               
                 Surface # 
                 9 
                 10 
                 11 
                 12 
                 13 
                 14 
                 15 
               
               
                   
               
               
                 k =  
                 −1.5943E+01 
                 −3.3480E+00 
                 −3.6671E+00 
                   1.1487E+00 
                   4.2983E+00 
                 −5.6779E+00 
                 −3.9712E+00 
               
               
                 A4 =  
                 −7.2926E−02 
                 −1.5935E−01 
                 −2.4404E−01 
                   2.2469E−01 
                   1.2960E−01 
                 −4.8126E−02 
                 −5.5367E−02 
               
               
                 A6 =  
                   8.2725E−02 
                   1.8207E−01 
                   3.4067E−01 
                 −1.5068E−01 
                 −8.6263E−02 
                 −1.0478E−03 
                   1.8756E−02 
               
               
                 A8 =  
                 −8.7103E−02 
                 −1.4047E−01 
                 −3.7959E−01 
                   6.1084E−02 
                   3.1468E−02 
                   2.8707E−03 
                 −5.7901E−03 
               
               
                 A10 =  
                   7.1128E−02 
                   1.3808E−01 
                   2.8263E−01 
                 −1.5882E−02 
                 −7.6575E−03 
                 −3.0623E−04 
                   1.1951E−03 
               
               
                 A12 =  
                 −2.9881E−02 
                 −7.9949E−02 
                 −1.1673E−01 
                   2.3693E−03 
                   1.1761E−03 
                 −3.3588E−05 
                 −1.3887E−04 
               
               
                 A14 =  
                   4.7723E−03 
                   2.2157E−02 
                   2.5021E−02 
                 −1.7144E−04 
                 −1.0228E−04 
                   7.2345E−06 
                   8.2301E−06 
               
               
                 A16 =  
                   
                 −2.3585E−03 
                 −2.1991E−03 
                   3.5257E−06 
                   3.7347E−06 
                 −3.2260E−07 
                 −1.9443E−07 
               
               
                   
               
            
           
         
       
     
     In the 4th embodiment, the equation of the aspheric surface profiles of the aforementioned lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the 1st embodiment with corresponding values for the 4th embodiment, so an explanation in this regard will not be provided again. 
     Moreover, these parameters can be calculated from Table 7 and Table 8 as the following values and satisfy the following conditions: 
     
       
         
           
               
             
               
                   
               
               
                 4th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                 f [mm] 
                 3.14 
                 |f/f1| + |f/f2| 
                 0.16 
               
               
                 Fno. 
                 2.10 
                 |f/fi|min 
                 0.01 
               
               
                 HFOV [deg.] 
                 48.3 
                 Y11/Y72 
                 0.68 
               
               
                 Nmax 
                 1.669 
                 TL/ImgH 
                 1.57 
               
               
                 CT4/CT5 
                 0.47 
                 f/ImgH 
                 0.85 
               
               
                 (R1 + R2)/(R1 − R2) 
                 0.76 
                 f/EPD 
                 2.10 
               
               
                 (R5 + R6)/(R5 − R6) 
                 1.05 
                 SD/TD 
                 0.75 
               
               
                 (R7 + R8)/(R7 − R8) 
                 0.43 
                 Yc62/Yc72 
                 0.17, 0.79 
               
               
                 f/f1 
                 0.16 
                 |SAGc62/Yc62| 
                 0.004, 0.066 
               
               
                 f/f12 
                 0.17 
                 |Dsr4/Dsr3| 
                 0.47 
               
               
                 |f3/f1| 
                 0.12 
                 |Dsr5/Dsr6| 
                 0.08 
               
               
                 |f5/f1| 
                 0.11 
               
               
                   
               
            
           
         
       
     
     In the photographing lens assembly according to the 4th embodiment, when the focal length of the photographing lens assembly is f, a curvature radius of an object-side surface of one of the lens elements of the photographing lens assembly is Rf, and a curvature radius of an image-side surface of the lens element of the photographing lens assembly is Rr, the value of the condition |f/Rf|+|f/Rr| corresponding to each of the first lens element  410  through the seventh lens element  470  is listed in the following table, wherein term definitions of the parameters related to each surface of the lens elements are the same as those of the 1st embodiment. Therefore, an explanation in this regard will not be provided again. 
     
       
         
           
               
             
               
                   
               
               
                 4th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 |f/Rf| + |f/Rr| 
                 |f/R1| + |f/R2| 
                 0.29 
                 |f/Rf| + |f/Rr| 
                  |f/R9| + |f/R10| 
                 5.57 
               
               
                   
                 |f/R3| + |f/R4| 
                 3.55 
                   
                 |f/R11| + |f/R12| 
                 1.04 
               
               
                   
                 |f/R5| + |f/R6| 
                 2.43 
                   
                 |f/R13| + |f/R14| 
                 5.29 
               
               
                   
                 |f/R7| + |f/R8| 
                 0.97 
               
               
                   
               
            
           
         
       
     
     Furthermore, in the photographing lens assembly according to the 4th embodiment, three lens elements of the first lens element  410 , the second lens element  420 , the third lens element  430 , the fourth lens element  440 , the fifth lens element  450 , the sixth lens element  460 , and the seventh lens element  470  have the Abbe numbers less than 25.0, which are the second lens element  420 , the fourth lens element  440  and the sixth lens element  460 . 
     In the photographing lens assembly according to the 4th embodiment, when a maximum optical effective radius of the object-side surface  411  of the first lens element  410  is Y11, a maximum optical effective radius of the object-side surface  421  of the second lens element  420  is Y21, a maximum optical effective radius of the object-side surface  431  of the third lens element  430  is Y31, a maximum optical effective radius of the object-side surface  441  of the fourth lens element  440  is Y41, and a maximum optical effective radius of the object-side surface  451  of the fifth lens element  450  is Y51, the following conditions are satisfied: Y11&gt;Y21; Y11&gt;Y31; Y11&gt;Y41; and Y11&gt;Y51. 
     5th Embodiment 
       FIG.  9    is a schematic view of an imaging apparatus according to the 5th embodiment of the present disclosure.  FIG.  10    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 5th embodiment. In  FIG.  9   , the imaging apparatus includes a photographing lens assembly (its reference numeral is omitted) and an image sensor  595 . The photographing lens assembly includes, in order from an object side to an image side, a first lens element  510 , a second lens element  520 , an aperture stop  500 , a third lens element  530 , a fourth lens element  540 , a fifth lens element  550 , a sixth lens element  560 , a seventh lens element  570 , a filter  580  and an image surface  590 . The image sensor  595  is disposed on the image surface  590  of the photographing lens assembly. The photographing lens assembly includes seven lens elements ( 510 ,  520 ,  530 ,  540 ,  550 ,  560  and  570 ) without additional one or more lens elements inserted between the first lens element  510  and the seventh lens element  570 , and there is an air gap in a paraxial region between each of adjacent lens elements of the seven lens elements ( 510 - 570 ). 
     The first lens element  510  with positive refractive power has an object-side surface  511  being convex in a paraxial region thereof and an image-side surface  512  being convex in a paraxial region thereof. The first lens element  510  is made of a plastic material, and has the object-side surface  511  and the image-side surface  512  being both aspheric. Furthermore, each of the object-side surface  511  and the image-side surface  512  of the first lens element  510  includes at least one inflection point. 
     The second lens element  520  with negative refractive power has an object-side surface  521  being convex in a paraxial region thereof and an image-side surface  522  being concave in a paraxial region thereof. The second lens element  520  is made of a plastic material, and has the object-side surface  521  and the image-side surface  522  being both aspheric. 
     The third lens element  530  with positive refractive power has an object-side surface  531  being convex in a paraxial region thereof and an image-side surface  532  being convex in a paraxial region thereof. The third lens element  530  is made of a glass material, and has the object-side surface  531  and the image-side surface  532  being both aspheric. 
     The fourth lens element  540  with negative refractive power has an object-side surface  541  being concave in a paraxial region thereof and an image-side surface  542  being concave in a paraxial region thereof. The fourth lens element  540  is made of a plastic material, and has the object-side surface  541  and the image-side surface  542  being both aspheric. 
     The fifth lens element  550  with positive refractive power has an object-side surface  551  being concave in a paraxial region thereof and an image-side surface  552  being convex in a paraxial region thereof. The fifth lens element  550  is made of a plastic material, and has the object-side surface  551  and the image-side surface  552  being both aspheric. Furthermore, each of the object-side surface  551  and the image-side surface  552  of the fifth lens element  550  includes at least one inflection point. 
     The sixth lens element  560  with positive refractive power has an object-side surface  561  being concave in a paraxial region thereof and an image-side surface  562  being convex in a paraxial region thereof. The sixth lens element  560  is made of a plastic material, and has the object-side surface  561  and the image-side surface  562  being both aspheric. Furthermore, each of the object-side surface  561  and the image-side surface  562  of the sixth lens element  560  includes at least one inflection point, and the image-side surface  562  of the sixth lens element  560  includes at least one convex shape in an off-axis region thereof. 
     The seventh lens element  570  with negative refractive power has an object-side surface  571  being convex in a paraxial region thereof and an image-side surface  572  being concave in a paraxial region thereof. The seventh lens element  570  is made of a plastic material, and has the object-side surface  571  and the image-side surface  572  being both aspheric. Furthermore, each of the object-side surface  571  and the image-side surface  572  of the seventh lens element  570  includes at least one inflection point, and the image-side surface  572  of the seventh lens element  570  includes at least one convex shape in an off-axis region thereof. 
     The filter  580  is made of a glass material and located between the seventh lens element  570  and the image surface  590 , and will not affect the focal length of the photographing lens assembly. 
     The detailed optical data of the 5th embodiment are shown in Table 9 and the aspheric surface data are shown in Table 10 below. 
     
       
         
           
               
             
               
                 TABLE 9 
               
             
            
               
                   
               
               
                 5th Embodiment 
               
               
                 f = 3.15 mm, Fno = 1.87, HFOV = 48.4 deg. 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface 
                   
                   
                   
                   
                   
                   
                 Focal 
               
               
                 # 
                   
                 Curvature Radius 
                 Thickness 
                 Material 
                 Index 
                 Abbe # 
                 Length 
               
               
                   
               
               
                  0 
                 Object 
                 Plano 
                 Infinity 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  1 
                 Lens 1 
                  23.464 
                 ASP 
                 0.622 
                 Plastic 
                 1.534 
                 55.9 
                 16.97 
               
               
                  2 
                   
                 −14.627 
                 ASP 
                 0.066 
                   
                   
                   
                   
               
               
                  3 
                 Lens 2 
                   1.834 
                 ASP 
                 0.299 
                 Plastic 
                 1.669 
                 19.5 
                 −166.48   
               
               
                  4 
                   
                   1.686 
                 ASP 
                 0.235 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                  5 
                 Ape. Stop 
                 Plano 
                 0.061 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  6 
                 Lens 3 
                  47.280 
                 ASP 
                 0.820 
                 Glass 
                 1.583 
                 46.5 
                  2.41 
               
               
                  7 
                   
                  −1.436 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                  8 
                 Lens 4 
                  −4.993 
                 ASP 
                 0.284 
                 Plastic 
                 1.660 
                 20.4 
                 −4.99 
               
               
                  9 
                   
                   9.867 
                 ASP 
                 0.435 
                   
                   
                   
                   
               
               
                 10 
                 Lens 5 
                  −1.804 
                 ASP 
                 0.715 
                 Plastic 
                 1.544 
                 56.0 
                  2.49 
               
               
                 11 
                   
                  −0.882 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                 12 
                 Lens 6 
                  −4.250 
                 ASP 
                 0.506 
                 Plastic 
                 1.544 
                 56.0 
                 55.44 
               
               
                 13 
                   
                  −3.881 
                 ASP 
                 0.062 
                   
                   
                   
                   
               
               
                 14 
                 Lens 7 
                   2.529 
                 ASP 
                 0.393 
                 Plastic 
                 1.544 
                 56.0 
                 −2.47 
               
               
                 15 
                   
                   0.829 
                 ASP 
                 0.650 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 16 
                 Filter 
                 Plano 
                 0.210 
                 Glass 
                 1.517 
                 64.2 
                 — 
               
               
                 17 
                   
                 Plano 
                 0.388 
                   
                   
                   
                   
               
               
                 18 
                 Image 
                 Plano 
                 — 
               
               
                   
               
               
                 Reference wavelength is 587.6 nm (d-line). 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 10 
               
               
                   
               
               
                 Aspheric Coefficients 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface # 
                 1 
                 2 
                 3 
                 4 
                 6 
                 7 
                 8 
               
               
                   
               
               
                 k =  
                   2.0000E+01 
                 −3.8715E+01 
                 −6.1214E+00 
                 −4.7402E+00 
                   2.0000E+01 
                 −1.0873E+00 
                 −2.8788E+01 
               
               
                 A4 =  
                   3.4658E−02 
                   1.1104E−02 
                   1.2808E−03 
                   9.9526E−03 
                 −5.9971E−02 
                 −1.0054E−02 
                 −7.4442E−02 
               
               
                 A6 =  
                 −1.2964E−02 
                 −4.2931E−03 
                 −1.1387E−01 
                 −1.4542E−01 
                 −5.5027E−02 
                 −9.8991E−02 
                 −2.7387E−02 
               
               
                 A8 =  
                   4.1290E−03 
                   7.5626E−04 
                   9.4609E−02 
                   1.4462E−01 
                 −2.3025E−02 
                 −5.8742E−02 
                   3.6825E−02 
               
               
                 A10 =  
                 −9.8403E−04 
                 −1.2754E−04 
                 −2.3069E−02 
                 −2.0996E−02 
                 −1.1837E−01 
                   1.7798E−01 
                   5.9613E−02 
               
               
                 A12 =  
                   1.0941E−04 
                   1.1067E−05 
                   2.5140E−03 
                   
                   
                 −1.2254E−01 
                 −7.1181E−02 
               
               
                 A14 =  
                 −4.0772E−06 
                   
                   
                   
                   
                   
                   2.0199E−02 
               
               
                   
               
               
                 Surface # 
                 9 
                 10 
                 11 
                 12 
                 13 
                 14 
                 15 
               
               
                   
               
               
                 k =  
                 −3.2289E+01 
                 −3.5060E+00 
                 −4.1971E+00 
                   1.7579E+00 
                 −3.8160E+01 
                 −4.9908E+00 
                 −3.7276E+00 
               
               
                 A4 =  
                 −8.5400E−02 
                 −1.3677E−01 
                 −2.6684E−01 
                   1.6541E−01 
                   1.2658E−01 
                 −4.1395E−02 
                 −6.2549E−02 
               
               
                 A6 =  
                   7.0604E−02 
                   1.3948E−01 
                   3.5492E−01 
                 −4.0074E−02 
                 −5.0105E−02 
                 −1.1943E−02 
                   2.2932E−02 
               
               
                 A8 =  
                 −5.4676E−02 
                 −1.0704E−01 
                 −3.4848E−01 
                 −3.2035E−02 
                   3.9126E−03 
                   8.3007E−03 
                 −7.7292E−03 
               
               
                 A10 =  
                   4.8414E−02 
                   1.2260E−01 
                   2.2794E−01 
                   2.8225E−02 
                   1.9750E−03 
                 −1.5370E−03 
                   1.7360E−03 
               
               
                 A12 =  
                 −2.2076E−02 
                 −7.4619E−02 
                 −8.1839E−02 
                 −1.0108E−02 
                 −6.8249E−04 
                   1.0319E−04 
                 −2.1674E−04 
               
               
                 A14 =  
                   3.6557E−03 
                   2.0821E−02 
                   1.4979E−02 
                   1.7550E−03 
                   8.5882E−05 
                   3.2556E−07 
                   1.3634E−05 
               
               
                 A16 =  
                   
                 −2.2032E−03 
                 −1.1161E−03 
                 −1.1887E−04 
                 −3.9363E−06 
                 −2.1165E−07 
                 −3.3846E−07 
               
               
                   
               
            
           
         
       
     
     In the 5th embodiment, the equation of the aspheric surface profiles of the aforementioned lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the 1st embodiment with corresponding values for the 5th embodiment, so an explanation in this regard will not be provided again. 
     Moreover, these parameters can be calculated from Table 9 and Table 10 as the following values and satisfy the following conditions: 
     
       
         
           
               
             
               
                   
               
               
                 5th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                 f [mm] 
                 3.15 
                 |f/f1| + |f/f2| 
                 0.20 
               
               
                 Fno. 
                 1.87 
                 |f/fi|min 
                 0.02 
               
               
                 HFOV [deg.] 
                 48.4 
                 Y11/Y72 
                 0.69 
               
               
                 Nmax 
                 1.669 
                 TL/ImgH 
                 1.57 
               
               
                 CT4/CT5 
                 0.40 
                 f/ImgH 
                 0.85 
               
               
                 (R1 + R2)/(R1 − R2) 
                 0.23 
                 f/EPD 
                 1.87 
               
               
                 (R5 + R6)/(R5 − R6) 
                 0.94 
                 SD/TD 
                 0.73 
               
               
                 (R7 + R8)/(R7 − R8) 
                 −0.33 
                 Yc62/Yc72 
                 0.28, 0.64 
               
               
                 f/f1 
                 0.19 
                 |SAGc62/Yc62| 
                 0.038, 0.037 
               
               
                 f/f12 
                 0.18 
                 |Dsr4/Dsr3| 
                 0.44 
               
               
                 |f3/f1| 
                 0.14 
                 |Dsr5/Dsr6| 
                 0.07 
               
               
                 |f5/f1| 
                 0.15 
               
               
                   
               
            
           
         
       
     
     In the photographing lens assembly according to the 5th embodiment, when the focal length of the photographing lens assembly is f, a curvature radius of an object-side surface of one of the lens elements of the photographing lens assembly is Rf, and a curvature radius of an image-side surface of the lens element of the photographing lens assembly is Rr, the value of the condition |f/Rf|+|f/Rr| corresponding to each of the first lens element  510  through the seventh lens element  570  is listed in the following table, wherein term definitions of the parameters related to each surface of the lens elements are the same as those of the 1st embodiment. Therefore, an explanation in this regard will not be provided again. 
     
       
         
           
               
             
               
                   
               
               
                 5th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 |f/Rf| + |f/Rr| 
                 |f/R1| + |f/R2| 
                 0.35 
                 |f/Rf| + |f/Rr| 
                  |f/R9| + |f/R10| 
                 5.32 
               
               
                   
                 |f/R3| + |f/R4| 
                 3.59 
                   
                 |f/R11| + |f/R12| 
                 1.55 
               
               
                   
                 |f/R5| + |f/R6| 
                 2.26 
                   
                 |f/R13| + |f/R14| 
                 5.05 
               
               
                   
                 |f/R7| + |f/R8| 
                 0.95 
               
               
                   
               
            
           
         
       
     
     Furthermore, in the photographing lens assembly according to the 5th embodiment, two lens elements of the first lens element  510 , the second lens element  520 , the third lens element  530 , the fourth lens element  540 , the fifth lens element  550 , the sixth lens element  560 , and the seventh lens element  570  have the Abbe numbers less than 25.0, which are the second lens element  520  and the fourth lens element  540 . 
     In the photographing lens assembly according to the 5th embodiment, when a maximum optical effective radius of the object-side surface  511  of the first lens element  510  is Y11, a maximum optical effective radius of the object-side surface  521  of the second lens element  520  is Y21, a maximum optical effective radius of the object-side surface  531  of the third lens element  530  is Y31, a maximum optical effective radius of the object-side surface  541  of the fourth lens element  540  is Y41, and a maximum optical effective radius of the object-side surface  551  of the fifth lens element  550  is Y51, the following conditions are satisfied: Y11&gt;Y21; Y11&gt;Y31; Y11&gt;Y41; and Y11&gt;Y51. 
     6th Embodiment 
       FIG.  11    is a schematic view of an imaging apparatus according to the 6th embodiment of the present disclosure.  FIG.  12    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 6th embodiment. In  FIG.  11   , the imaging apparatus includes a photographing lens assembly (its reference numeral is omitted) and an image sensor  695 . The photographing lens assembly includes, in order from an object side to an image side, a stop  601 , a first lens element  610 , a second lens element  620 , an aperture stop  600 , a third lens element  630 , a stop  602 , a fourth lens element  640 , a fifth lens element  650 , a sixth lens element  660 , a seventh lens element  670 , a filter  680  and an image surface  690 . The image sensor  695  is disposed on the image surface  690  of the photographing lens assembly. The photographing lens assembly includes seven lens elements ( 610 ,  620 ,  630 ,  640 ,  650 ,  660  and  670 ) without additional one or more lens elements inserted between the first lens element  610  and the seventh lens element  670 , and there is an air gap in a paraxial region between each of adjacent lens elements of the seven lens elements ( 610 - 670 ). 
     The first lens element  610  with positive refractive power has an object-side surface  611  being concave in a paraxial region thereof and an image-side surface  612  being convex in a paraxial region thereof. The first lens element  610  is made of a plastic material, and has the object-side surface  611  and the image-side surface  612  being both aspheric. Furthermore, each of the object-side surface  611  and the image-side surface  612  of the first lens element  610  includes at least one inflection point. 
     The second lens element  620  with negative refractive power has an object-side surface  621  being convex in a paraxial region thereof and an image-side surface  622  being concave in a paraxial region thereof. The second lens element  620  is made of a plastic material, and has the object-side surface  621  and the image-side surface  622  being both aspheric. 
     The third lens element  630  with positive refractive power has an object-side surface  631  being convex in a paraxial region thereof and an image-side surface  632  being convex in a paraxial region thereof. The third lens element  630  is made of a plastic material, and has the object-side surface  631  and the image-side surface  632  being both aspheric. 
     The fourth lens element  640  with negative refractive power has an object-side surface  641  being convex in a paraxial region thereof and an image-side surface  642  being concave in a paraxial region thereof. The fourth lens element  640  is made of a plastic material, and has the object-side surface  641  and the image-side surface  642  being both aspheric. 
     The fifth lens element  650  with positive refractive power has an object-side surface  651  being concave in a paraxial region thereof and an image-side surface  652  being convex in a paraxial region thereof. The fifth lens element  650  is made of a plastic material, and has the object-side surface  651  and the image-side surface  652  being both aspheric. Furthermore, each of the object-side surface  651  and the image-side surface  652  of the fifth lens element  650  includes at least one inflection point. 
     The sixth lens element  660  with negative refractive power has an object-side surface  661  being concave in a paraxial region thereof and an image-side surface  662  being concave in a paraxial region thereof. The sixth lens element  660  is made of a plastic material, and has the object-side surface  661  and the image-side surface  662  being both aspheric. Furthermore, each of the object-side surface  661  and the image-surface  662  of the sixth lens element  660  includes at least one inflection point, and the image-side surface  662  of the sixth lens element  660  includes at least one convex shape in an off-axis region thereof. 
     The seventh lens element  670  with negative refractive power has an object-side surface  671  being convex in a paraxial region thereof and an image-side surface  672  being concave in a paraxial region thereof. The seventh lens element  670  is made of a plastic material, and has the object-side surface  671  and the image-side surface  672  being both aspheric. Furthermore, each of the object-side surface  671  and the image-side surface  672  of the seventh lens element  670  includes at least one inflection point, and the image-side surface  672  of the seventh lens element  670  includes at least one convex shape in an off-axis region thereof. 
     The filter  680  is made of a glass material and located between the seventh lens element  670  and the image surface  690 , and will not affect the focal length of the photographing lens assembly. 
     The detailed optical data of the 6th embodiment are shown in Table 11 and the aspheric surface data are shown in Table 12 below. 
     
       
         
           
               
             
               
                 TABLE 11 
               
             
            
               
                   
               
               
                 6th Embodiment 
               
               
                 f = 3.39 mm, Fno = 1.89, HFOV = 48.3 deg. 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface 
                   
                   
                   
                   
                   
                   
                 Focal 
               
               
                 # 
                   
                 Curvature Radius 
                 Thickness 
                 Material 
                 Index 
                 Abbe # 
                 Length 
               
               
                   
               
               
                  0 
                 Object 
                 Plano 
                 Infinity 
                   
                   
                   
                   
               
               
                  1 
                 Stop 
                 Plano 
                 0.000 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  2 
                 Lens 1 
                 −31.980 
                 ASP 
                 0.434 
                 Plastic 
                 1.545 
                 56.1  
                  7.31 
               
               
                  3 
                   
                  −3.560 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                  4 
                 Lens 
                   1.915 
                 ASP 
                 0.260 
                 Plastic 
                 1.669 
                 19.3  
                 −10.89  
               
               
                  5 
                   
                   1.434 
                 ASP 
                 0.187 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                  6 
                 Ape. Stop 
                 Plano 
                 0.151 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  7 
                 Lens 3 
                  42.171 
                 ASP 
                 0.676 
                 Plastic 
                 1.544 
                 56.0  
                  3.12 
               
               
                  8 
                   
                  −1.758 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                  9 
                 Stop 
                 Plano 
                 0.000 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 10 
                 Lens 4 
                   4.281 
                 ASP 
                 0.270 
                 Plastic 
                 1.638 
                 22.1  
                 −9.23 
               
               
                 11 
                   
                   2.418 
                 ASP 
                 0.654 
                   
                   
                   
                   
               
               
                 12 
                 Lens 5 
                  −1.881 
                 ASP 
                 0.639 
                 Plastic 
                 1.545 
                 54.8  
                  2.07 
               
               
                 13 
                   
                  −0.790 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                 14 
                 Lens 6 
                  −3.994 
                 ASP 
                 0.300 
                 Plastic 
                 1.571 
                 34.8  
                 −3.41 
               
               
                 15 
                   
                   3.907 
                 ASP 
                 0.045 
                   
                   
                   
                   
               
               
                 16 
                 Lens 7 
                   1.574 
                 ASP 
                 0.433 
                 Plastic 
                 1.544 
                 56.0  
                 −5.37 
               
               
                 17 
                   
                   0.924 
                 ASP 
                 0.800 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 18 
                 Filter 
                 Plano 
                 0.210 
                 Glass 
                 1.517 
                 64.2 
                 — 
               
               
                 19 
                   
                 Plano 
                 0.242 
                   
                   
                   
                   
               
               
                 20 
                 Image 
                 Plano 
                 — 
               
               
                   
               
               
                 Reference wavelength is 587.6 nm (d-line). 
               
               
                 Effective radius of the stop on Surface 1 is 1.725 mm 
               
               
                 Effective radius of the stop on Surface 9 is 1.196 mm 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 12 
               
               
                   
               
               
                 Aspheric Coefficients 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface # 
                 2 
                 3 
                 4 
                 5 
                 7 
                 8 
                 10 
               
               
                   
               
               
                 k =  
                 −8.2238E+01 
                 −5.6605E+01 
                 −6.3405E+00 
                 −6.2823E+00 
                 −4.3389E+01 
                 −1.1668E+00 
                 −2.6511E+00 
               
               
                 A4 =  
                   4.5145E−02 
                   2.5142E−02 
                 −1.9672E−02 
                 −3.8936E−02 
                 −3.9856E−02 
                 −6.7013E−02 
                 −1.5076E−01 
               
               
                 A6 =  
                 −2.7921E−02 
                 −2.7885E−02 
                 −6.4505E−02 
                   2.0151E−02 
                 −3.3505E−02 
                   7.1709E−02 
                   2.1442E−01 
               
               
                 A8 =  
                   1.2372E−02 
                   1.8121E−02 
                 −4.5543E−03 
                 −1.3232E−01 
                 −8.2229E−02 
                 −2.2440E−01 
                 −3.3359E−01 
               
               
                 A10 =  
                 −3.5266E−03 
                 −7.3154E−03 
                   4.8922E−02 
                   1.2751E−01 
                   3.4005E−02 
                   2.0752E−01 
                   3.1774E−01 
               
               
                 A12 =  
                   2.6337E−04 
                   1.2516E−03 
                 −1.8730E−02 
                   
                   
                 −8.2979E−02 
                 −1.4461E−01 
               
               
                 A14 =  
                   5.1584E−05 
                   
                   
                   
                   
                   
                   2.4895E−02 
               
               
                   
               
               
                 Surface # 
                 11 
                 12 
                 13 
                 14 
                 15 
                 16 
                 17 
               
               
                   
               
               
                 k =  
                 −9.2234E+00 
                 −3.8100E+00 
                 −3.6821E+00 
                   3.1996E+00 
                 −9.7066E+01 
                 −5.4552E+00 
                 −4.7081E+00 
               
               
                 A4 =  
                 −7.3757E−02 
                 −1.5511E−01 
                 −1.7147E−01 
                   3.4699E−01 
                   1.3983E−01 
                 −1.4166E−01 
                 −9.6295E−02 
               
               
                 A6 =  
                   1.0751E−01 
                   3.2693E−01 
                   2.3230E−01 
                 −4.0166E−01 
                 −1.6718E−01 
                   4.3114E−02 
                   3.3851E−02 
               
               
                 A8 =  
                 −1.3202E−01 
                 −5.2864E−01 
                 −3.0494E−01 
                   2.5376E−01 
                   8.2358E−02 
                 −6.8280E−03 
                 −7.0286E−03 
               
               
                 A10 =  
                   9.3848E−02 
                   5.9945E−01 
                   2.4931E−01 
                 −1.0490E−01 
                 −2.3995E−02 
                   7.8915E−04 
                   8.1785E−04 
               
               
                 A12 =  
                 −3.0981E−02 
                 −3.8512E−01 
                 −9.9937E−02 
                   2.8460E−02 
                   4.1437E−03 
                 −8.6856E−05 
                 −4.6136E−05 
               
               
                 A14 =  
                   3.5273E−03 
                   1.2908E−01 
                   1.8683E−02 
                 −4.8457E−03 
                 −3.9084E−04 
                   7.1953E−06 
                   5.5161E−07 
               
               
                 A16 =  
                   
                 −1.7855E−02 
                 −1.2962E−03 
                   3.9675E−04 
                   1.5562E−05 
                 −2.6368E−07 
                   3.1544E−08 
               
               
                   
               
            
           
         
       
     
     In the 6th embodiment, the equation of the aspheric surface profiles of the aforementioned lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the 1st embodiment with corresponding values for the 6th embodiment, so an explanation in this regard will not be provided again. 
     Moreover, these parameters can be calculated from Table 11 and Table 12 as the following values and satisfy the following conditions: 
     
       
         
           
               
             
               
                   
               
               
                 6th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 f [mm] 
                 3.39 
                 |f/f1| + |f/f2| 
                 0.77 
               
               
                   
                 Fno. 
                 1.89 
                 |f/fi|min 
                 0.31 
               
               
                   
                 HFOV [deg.] 
                 48.3 
                 Y11/Y72 
                 0.54 
               
               
                   
                 Nmax 
                 1.669 
                 TL/ImgH 
                 1.42 
               
               
                   
                 CT4/CT5 
                 0.42 
                 f/ImgH 
                 0.89 
               
               
                   
                 (R1 + R2)/(R1 − R2) 
                 1.25 
                 f/EPD 
                 1.89 
               
               
                   
                 (R5 + R6)/(R5 − R6) 
                 0.92 
                 SD/TD 
                 0.78 
               
               
                   
                 (R7 + R8)/(R7 − R8) 
                 3.60 
                 Yc62/Yc72 
                 0.75 
               
               
                   
                 f/f1 
                 0.46 
                 |SAGc62/Yc62| 
                 0.097 
               
               
                   
                 f/f12 
                 0.19 
                 |Dsr4/Dsr3| 
                 0.42 
               
               
                   
                 |f3/f1| 
                 0.43 
                 |Dsr5/Dsr6| 
                 0.18 
               
               
                   
                 |f5/f1| 
                 0.28 
               
               
                   
                   
               
            
           
         
       
     
     In the photographing lens assembly according to the 6th embodiment, when the focal length of the photographing lens assembly is f, a curvature radius of an object-side surface of one of the lens elements of the photographing lens assembly is Rf, and a curvature radius of an image-side surface of the lens element of the photographing lens assembly is Rr, the value of the condition |f/Rf|+|f/Rr| corresponding to each of the first lens element  610  through the seventh lens element  670  is listed in the following table, wherein term definitions of the parameters related to each surface of the lens elements are the same as those of the 1st embodiment. Therefore, an explanation in this regard will not be provided again. 
     
       
         
           
               
             
               
                   
               
               
                 6th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 |f/Rf| + |f/Rr| 
                 |f/R1| + |f/R2| 
                 1.06 
                 |f/Rf| + |f/Rr| 
                  |f/R9| + |f/R10| 
                 6.09 
               
               
                   
                 |f/R3| + |f/R4| 
                 4.13 
                   
                 |f/R11| + |f/R12| 
                 1.71 
               
               
                   
                 |f/R5| + |f/R6| 
                 2.01 
                   
                 |f/R13| + |f/R14| 
                 5.82 
               
               
                   
                 |f/R7| + |f/R8| 
                 2.19 
               
               
                   
               
            
           
         
       
     
     Furthermore, in the photographing lens assembly according to the 6th embodiment, two lens elements of the first lens element  610 , the second lens element  620 , the third lens element  630 , the fourth lens element  640 , the fifth lens element  650 , the sixth lens element  660 , and the seventh lens element  670  have the Abbe numbers less than 25.0, which are the second lens element  620  and the fourth lens element  640 . 
     In the photographing lens assembly according to the 6th embodiment, when a maximum optical effective radius of the object-side surface  611  of the first lens element  610  is Y11, a maximum optical effective radius of the object-side surface  621  of the second lens element  620  is Y21, a maximum optical effective radius of the object-side surface  631  of the third lens element  630  is Y31, a maximum optical effective radius of the object-side surface  641  of the fourth lens element  640  is Y41, and a maximum optical effective radius of the object-side surface  651  of the fifth lens element  650  is Y51, the following conditions are satisfied: Y11&gt;Y21; Y11&gt;Y31; Y11&gt;Y41; and Y11&gt;Y51. 
     7th Embodiment 
       FIG.  13    is a schematic view of an imaging apparatus according to the 7th embodiment of the present disclosure.  FIG.  14    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 7th embodiment. In  FIG.  13   , the imaging apparatus includes a photographing lens assembly (its reference numeral is omitted) and an image sensor  795 . The photographing lens assembly includes, in order from an object side to an image side, a first lens element  710 , a second lens element  720 , an aperture stop  700 , a third lens element  730 , a fourth lens element  740 , a fifth lens element  750 , a sixth lens element  760 , a seventh lens element  770 , a filter  780  and an image surface  790 . The image sensor  795  is disposed on the image surface  790  of the photographing lens assembly. The photographing lens assembly includes seven lens elements ( 710 ,  720 ,  730 ,  740 ,  750 ,  760  and  770 ) without additional one or more lens elements inserted between the first lens element  710  and the seventh lens element  770 , and there is an air gap in a paraxial region between each of adjacent lens elements of the seven lens elements ( 710 - 770 ). 
     The first lens element  710  with positive refractive power has an object-side surface  711  being convex in a paraxial region thereof and an image-side surface  712  being convex in a paraxial region thereof. The first lens element  710  is made of a plastic material, and has the object-side surface  711  and the image-side surface  712  being both aspheric. Furthermore, the object-side surface  711  of the first lens element  710  includes at least one inflection point. 
     The second lens element  720  with positive refractive power has an object-side surface  721  being convex in a paraxial region thereof and an image-side surface  722  being concave in a paraxial region thereof. The second lens element  720  is made of a plastic material, and has the object-side surface  721  and the image-side surface  722  being both aspheric. 
     The third lens element  730  with positive refractive power has an object-side surface  731  being convex in a paraxial region thereof and an image-side surface  732  being convex in a paraxial region thereof. The third lens element  730  is made of a plastic material, and has the object-side surface  731  and the image-side surface  732  being both aspheric. 
     The fourth lens element  740  with negative refractive power has an object-side surface  741  being concave in a paraxial region thereof and an image-side surface  742  being convex in a paraxial region thereof. The fourth lens element  740  is made of a plastic material, and has the object-side surface  741  and the image-side surface  742  being both aspheric. 
     The fifth lens element  750  with positive refractive power has an object-side surface  751  being concave in a paraxial region thereof and an image-side surface  752  being convex in a paraxial region thereof. The fifth lens element  750  is made of a plastic material, and has the object-side surface  751  and the image-side surface  752  being both aspheric. Furthermore, each of the object-side surface  751  and the image-side surface  752  of the fifth lens element  750  includes at least one inflection point. 
     The sixth lens element  760  with negative refractive power has an object-side surface  761  being concave in a paraxial region thereof and an image-side surface  762  being convex in a paraxial region thereof. The sixth lens element  760  is made of a plastic material, and has the object-side surface  761  and the image-side surface  762  being both aspheric. Furthermore, each of the object-side surface  761  and the image-side surface  762  of the sixth lens element  760  includes at least one inflection point, and the image-side surface  762  of the sixth lens element  760  includes at least one convex shape in an off-axis region thereof. 
     The seventh lens element  770  with negative refractive power has an object-side surface  771  being convex in a paraxial region thereof and an image-side surface  772  being concave in a paraxial region thereof. The seventh lens element  770  is made of a plastic material, and has the object-side surface  771  and the image-side surface  772  being both aspheric. Furthermore, each of the object-side surface  771  and the image-side surface  772  of the seventh lens element  770  includes at least one inflection point, and the image-side surface  772  of the seventh lens element  770  includes at least one convex shape in an off-axis region thereof. 
     The filter  780  is made of a glass material and located between the seventh lens element  770  and the image surface  790 , and will not affect the focal length of the photographing lens assembly. 
     The detailed optical data of the 7th embodiment are shown in Table 13 and the aspheric surface data are shown in Table 14 below. 
     
       
         
           
               
             
               
                 TABLE 13 
               
             
            
               
                   
               
               
                 7th Embodiment 
               
               
                 f = 3.13 mm, Fno = 1.91, HFOV = 46.4 deg. 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface 
                   
                   
                   
                   
                   
                   
                 Focal 
               
               
                 # 
                   
                 Curvature Radius 
                 Thickness 
                 Material 
                 Index 
                 Abbe # 
                 Length 
               
               
                   
               
               
                  0 
                 Object 
                 Plano 
                 Infinity 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  1 
                 Lens 1 
                  26.695 
                 ASP 
                 0.681 
                 Plastic 
                 1.534 
                 55.9 
                 13.42 
               
               
                  2 
                   
                  −9.710 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                  3 
                 Lens 2 
                   1.854 
                 ASP 
                 0.305 
                 Plastic 
                 1.669 
                 19.5 
                 772.89  
               
               
                  4 
                   
                   1.738 
                 ASP 
                 0.228 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                  5 
                 Ape. Stop 
                 Plano 
                 0.092 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  6 
                 Lens 3 
                  11.340 
                 ASP 
                 0.890 
                 Plastic 
                 1.582 
                 30.2 
                  2.06 
               
               
                  7 
                   
                  −1.306 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                  8 
                 Lens 4 
                  −1.702 
                 ASP 
                 0.220 
                 Plastic 
                 1.660 
                 20.4 
                 −2.65 
               
               
                  9 
                   
                 −68.822 
                 ASP 
                 0.299 
                   
                   
                   
                   
               
               
                 10 
                 Lens 5 
                  −2.244 
                 ASP 
                 0.706 
                 Plastic 
                 1.544 
                 56.0 
                  2.29 
               
               
                 11 
                   
                  −0.890 
                 ASP 
                 0.032 
                   
                   
                   
                   
               
               
                 12 
                 Lens 6 
                  −4.588 
                 ASP 
                 0.508 
                 Plastic 
                 1.544 
                 56.0 
                 −10.86  
               
               
                 13 
                   
                 −21.296 
                 ASP 
                 0.124 
                   
                   
                   
                   
               
               
                 14 
                 Lens 7 
                   1.623 
                 ASP 
                 0.427 
                 Plastic 
                 1.544 
                 56.0 
                 −4.14 
               
               
                 15 
                   
                   0.856 
                 ASP 
                 0.740 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 16 
                 Filter 
                 Plano 
                 0.210 
                 Glass 
                 1.517 
                 64.2 
                 — 
               
               
                 17 
                   
                 Plano 
                 0.381 
                   
                   
                   
                   
               
               
                 18 
                 Image 
                 Plano 
                 — 
               
               
                   
               
               
                 Reference wavelength is 587.6 nm (d-line). 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 14 
               
               
                   
               
               
                 Aspheric Coefficients 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface # 
                 1 
                 2 
                 3 
                 4 
                 6 
                 7 
                 8 
               
               
                   
               
               
                 k =  
                   3.7173E+00 
                 −3.8715E+01 
                 −6.2037E+00 
                 −5.3442E+00 
                   2.0000E+01 
                 −1.0882E+00 
                 −3.9733E+00 
               
               
                 A4 =  
                   3.2731E−02 
                   7.5033E−03 
                 −2.3537E−03 
                   1.0547E−02 
                 −3.8919E−02 
                 −3.4345E−02 
                 −2.4672E−01 
               
               
                 A6 =  
                 −1.3188E−02 
                 −2.2521E−03 
                 −1.0357E−01 
                 −2.0724E−01 
                 −3.2738E−02 
                   3.9560E−02 
                   4.8640E−01 
               
               
                 A8 =  
                   3.4881E−03 
                   2.9449E−04 
                   9.8993E−02 
                   2.8294E−01 
                   1.1923E−02 
                 −3.2879E−01 
                 −1.0819E+00 
               
               
                 A10 =  
                 −6.2316E−04 
                 −4.2441E−05 
                 −2.8795E−02 
                 −1.3627E−01 
                 −1.8543E−01 
                   4.0180E−01 
                   1.3274E+00 
               
               
                 A12 =  
                   5.7419E−05 
                   3.6571E−06 
                 −2.9515E−04 
                   
                   
                 −1.9426E−01 
                 −7.8398E−01 
               
               
                 A14 =  
                 −1.9509E−06 
                   
                   
                   
                   
                   
                   1.8077E−01 
               
               
                   
               
               
                 Surface # 
                 9 
                 10 
                 11 
                 12 
                 13 
                 14 
                 15 
               
               
                   
               
               
                 k =  
                 −1.0000E+00 
                 −4.1271E+00 
                 −3.9923E+00 
                   1.7435E−01 
                   1.6605E+01 
                 −4.9173E+00 
                 −3.4395E+00 
               
               
                 A4 =  
                 −1.1801E−01 
                 −1.2797E−01 
                 −2.6488E−01 
                   2.1734E−01 
                   1.1962E−01 
                 −2.9804E−02 
                 −4.3790E−02 
               
               
                 A6 =  
                   2.0387E−01 
                   1.1033E−01 
                   3.2367E−01 
                 −1.4012E−01 
                 −7.6102E−02 
                 −1.2877E−02 
                   9.8759E−03 
               
               
                 A8 =  
                 −2.1883E−01 
                 −5.5812E−03 
                 −3.2348E−01 
                   5.3172E−02 
                   2.8350E−02 
                   7.1227E−03 
                 −2.3817E−03 
               
               
                 A10 =  
                   1.5100E−01 
                 −4.5650E−03 
                   2.1359E−01 
                 −1.2633E−02 
                 −7.5408E−03 
                 −1.2788E−03 
                   5.0315E−04 
               
               
                 A12 =  
                 −5.5408E−02 
                 −3.8291E−03 
                 −7.2883E−02 
                   1.5822E−03 
                   1.3171E−03 
                   1.0412E−04 
                 −6.1360E−05 
               
               
                 A14 =  
                   8.0892E−03 
                   2.3725E−03 
                   1.1975E−02 
                 −7.0172E−05 
                 −1.3458E−04 
                 −3.4842E−06 
                   3.6980E−06 
               
               
                 A16 =  
                   
                 −3.5038E−04 
                 −7.5939E−04 
                 −1.1805E−06 
                   5.9913E−06 
                   2.1827E−08 
                 −8.6494E−08 
               
               
                   
               
            
           
         
       
     
     In the 7th embodiment, the equation of the aspheric surface profiles of the aforementioned lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the 1st embodiment with corresponding values for the 7th embodiment, so an explanation in this regard will not be provided again. 
     Moreover, these parameters can be calculated from Table 13 and Table 14 as the following values and satisfy the following conditions: 
     
       
         
           
               
             
               
                   
               
               
                 7th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                 f [mm] 
                 3.13 
                 |f/f1| + |f/f2| 
                 0.24 
               
               
                 Fno. 
                 1.91 
                 |f/fi|min 
                 0.004 
               
               
                 HFOV [deg.] 
                 46.4 
                 Y11/Y72 
                 0.69 
               
               
                 Nmax 
                 1.669 
                 TL/ImgH 
                 1.72 
               
               
                 CT4/CT5 
                 0.31 
                 f/ImgH 
                 0.91 
               
               
                 (R1 + R2)/(R1 − R2) 
                 0.47 
                 f/EPD 
                 1.91 
               
               
                 (R5 + R6)/(R5 − R6) 
                 0.79 
                 SD/TD 
                 0.73 
               
               
                 (R7 + R8)/(R7 − R8) 
                 −1.05 
                 Yc62/Yc72 
                 0.11, 0.58 
               
               
                 f/f1 
                 0.23 
                 |SAGc62/Yc62| 
                 0.004, 0.072 
               
               
                 f/f12 
                 0.25 
                 |Dsr4/Dsr3| 
                 0.43 
               
               
                 |f3/f1| 
                 0.15 
                 |Dsr5/Dsr6| 
                 0.09 
               
               
                 |f5/f1| 
                 0.17 
               
               
                   
               
            
           
         
       
     
     In the photographing lens assembly according to the 7th embodiment, when the focal length of the photographing lens assembly is f, a curvature radius of an object-side surface of one of the lens elements of the photographing lens assembly is Rf, and a curvature radius of an image-side surface of the lens element of the photographing lens assembly is Rr, the value of the condition |f/Rf|+|f/Rr| corresponding to each of the first lens element  710  through the seventh lens element  770  is listed in the following table, wherein term definitions of the parameters related to each surface of the lens elements are the same as those of the 1st embodiment. Therefore, an explanation in this regard will not be provided again. 
     
       
         
           
               
             
               
                   
               
               
                 7th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 |f/Rf| + |f/Rr| 
                 |f/R1| + |f/R2| 
                 0.44 
                 |f/Rf| + |f/Rr| 
                  |f/R9| + |f/R10| 
                 4.92 
               
               
                   
                 |f/R3| + |f/R4| 
                 3.49 
                   
                 |f/R11| + |f/R12| 
                 0.83 
               
               
                   
                 |f/R5| + |f/R6| 
                 2.68 
                   
                 |f/R13| + |f/R14| 
                 5.59 
               
               
                   
                 |f/R7| + |f/R8| 
                 1.89 
               
               
                   
               
            
           
         
       
     
     Furthermore, in the photographing lens assembly according to the 7th embodiment, two lens elements of the first lens element  710 , the second lens element  720 , the third lens element  730 , the fourth lens element  740 , the fifth lens element  750 , the sixth lens element  760 , and the seventh lens element  770  have the Abbe numbers less than 25.0, which are the second lens element  720  and the fourth lens element  740 . 
     In the photographing lens assembly according to the 7th embodiment, when a maximum optical effective radius of the object-side surface  711  of the first lens element  710  is Y11, a maximum optical effective radius of the object-side surface  721  of the second lens element  720  is Y21, a maximum optical effective radius of the object-side surface  731  of the third lens element  730  is Y31, a maximum optical effective radius of the object-side surface  741  of the fourth lens element  740  is Y41, and a maximum optical effective radius of the object-side surface  751  of the fifth lens element  750  is Y51, the following conditions are satisfied: Y11&gt;Y21; Y11&gt;Y31; Y11&gt;Y41; and Y11&gt;Y51. 
     8th Embodiment 
       FIG.  15    is a schematic view of an imaging apparatus according to the 8th embodiment of the present disclosure.  FIG.  16    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 8th embodiment. In  FIG.  15   , the imaging apparatus includes a photographing lens assembly (its reference numeral is omitted) and an image sensor  895 . The photographing lens assembly includes, in order from an object side to an image side, a first lens element  810 , a second lens element  820 , an aperture stop  800 , a third lens element  830 , a fourth lens element  840 , a fifth lens element  850 , a sixth lens element  860 , a seventh lens element  870 , a filter  880  and an image surface  890 . The image sensor  895  is disposed on the image surface  890  of the photographing lens assembly. The photographing lens assembly includes seven lens elements ( 810 ,  820 ,  830 ,  840 ,  850 ,  860  and  870 ) without additional one or more lens elements inserted between the first lens element  810  and the seventh lens element  870 , and there is an air gap in a paraxial region between each of adjacent lens elements of the seven lens elements ( 810 - 870 ). 
     The first lens element  810  with positive refractive power has an object-side surface  811  being convex in a paraxial region thereof and an image-side surface  812  being convex in a paraxial region thereof. The first lens element  810  is made of a plastic material, and has the object-side surface  811  and the image-side surface  812  being both aspheric. Furthermore, the object-side surface  811  of the first lens element  810  includes at least one inflection point. 
     The second lens element  820  with negative refractive power has an object-side surface  821  being convex in a paraxial region thereof and an image-side surface  822  being concave in a paraxial region thereof. The second lens element  820  is made of a plastic material, and has the object-side surface  821  and the image-side surface  822  being both aspheric. 
     The third lens element  830  with positive refractive power has an object-side surface  831  being convex in a paraxial region thereof and an image-side surface  832  being convex in a paraxial region thereof. The third lens element  830  is made of a plastic material, and has the object-side surface  831  and the image-side surface  832  being both aspheric. 
     The fourth lens element  840  with negative refractive power has an object-side surface  841  being concave in a paraxial region thereof and an image-side surface  842  being convex in a paraxial region thereof. The fourth lens element  840  is made of a plastic material, and has the object-side surface  841  and the image-side surface  842  being both aspheric. 
     The fifth lens element  850  with positive refractive power has an object-side surface  851  being concave in a paraxial region thereof and an image-side surface  852  being convex in a paraxial region thereof. The fifth lens element  850  is made of a plastic material, and has the object-side surface  851  and the image-side surface  852  being both aspheric. Furthermore, each of the object-side surface  851  and the image-side surface  852  of the fifth lens element  850  includes at least one inflection point. 
     The sixth lens element  860  with negative refractive power has an object-side surface  861  being convex in a paraxial region thereof and an image-side surface  862  being concave in a paraxial region thereof. The sixth lens element  860  is made of a plastic material, and has the object-side surface  861  and the image-side surface  862  being both aspheric. Furthermore, each of the object-side surface  861  and the image-side surface  862  of the sixth lens element  860  includes at least one inflection point, and the image-side surface  862  of the sixth lens element  860  includes at least one convex shape in an off-axis region thereof. 
     The seventh lens element  870  with negative refractive power has an object-side surface  871  being convex in a paraxial region thereof and an image-side surface  872  being concave in a paraxial region thereof. The seventh lens element  870  is made of a plastic material, and has the object-side surface  871  and the image-side surface  872  being both aspheric. Furthermore, each of the object-side surface  871  and the image-side surface  872  of the seventh lens element  870  includes at least one inflection point, and the image-side surface  872  of the seventh lens element  870  includes at least one convex shape in an off-axis region thereof. 
     The filter  880  is made of a glass material and located between the seventh lens element  870  and the image surface  890 , and will not affect the focal length of the photographing lens assembly. 
     The detailed optical data of the 8th embodiment are shown in Table 15 and the aspheric surface data are shown in Table 16 below. 
     
       
         
           
               
             
               
                 TABLE 15 
               
             
            
               
                   
               
               
                 8th Embodiment 
               
               
                 f = 3.09 mm, Fno = 1.95, HFOV = 46.9 deg. 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface 
                   
                   
                   
                   
                   
                   
                 Focal 
               
               
                 # 
                   
                 Curvature Radius 
                 Thickness 
                 Material 
                 Index 
                 Abbe # 
                 Length 
               
               
                   
               
               
                  0 
                 Object 
                 Plano 
                 Infinity 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  1 
                 Lens 1 
                 18.408 
                 ASP 
                 0.674 
                 Plastic 
                 1.535 
                 56.3 
                 12.46 
               
               
                  2 
                   
                 −10.310  
                 ASP 
                 0.036 
                   
                   
                   
                   
               
               
                  3 
                 Lens 2 
                  1.960 
                 ASP 
                 0.315 
                 Plastic 
                 1.656 
                 21.3 
                 −106.11   
               
               
                  4 
                   
                  1.785 
                 ASP 
                 0.134 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                  5 
                 Ape. Stop 
                 Plano 
                 0.114 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  6 
                 Lens 3 
                 10.471 
                 ASP 
                 0.931 
                 Plastic 
                 1.582 
                 30.2 
                  2.14 
               
               
                  7 
                   
                 −1.365 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                  8 
                 Lens 4 
                 −1.629 
                 ASP 
                 0.223 
                 Plastic 
                 1.669 
                 19.5 
                 −2.62 
               
               
                  9 
                   
                 −24.585  
                 ASP 
                 0.190 
                   
                   
                   
                   
               
               
                 10 
                 Lens 5 
                 −2.804 
                 ASP 
                 0.735 
                 Plastic 
                 1.511 
                 56.8 
                  2.75 
               
               
                 11 
                   
                 −1.020 
                 ASP 
                 0.045 
                   
                   
                   
                   
               
               
                 12 
                 Lens 6 
                 20.784 
                 ASP 
                 0.421 
                 Plastic 
                 1.511 
                 56.8 
                 −9.45 
               
               
                 13 
                   
                  3.892 
                 ASP 
                 0.379 
                   
                   
                   
                   
               
               
                 14 
                 Lens 7 
                  1.134 
                 ASP 
                 0.352 
                 Plastic 
                 1.534 
                 55.9 
                 −7.34 
               
               
                 15 
                   
                  0.785 
                 ASP 
                 0.800 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 16 
                 Filter 
                 Plano 
                 0.210 
                 Glass 
                 1.517 
                 64.2 
                 — 
               
               
                 17 
                   
                 Plano 
                 0.192 
                   
                   
                   
                   
               
               
                 18 
                 Image 
                 Plano 
                 — 
               
               
                   
               
               
                 Reference wavelength is 587.6 nm (d-line). 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 16 
               
               
                   
               
               
                 Aspheric Coefficients 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface # 
                 1 
                 2 
                 3 
                 4 
                 6 
                 7 
                 8 
               
               
                   
               
               
                 k =  
                 −1.4890E+01 
                 −3.8157E+01 
                 −6.6435E+00 
                 −5.3729E+00 
                   9.9547E+00 
                 −1.0876E+00 
                 −3.8103E+00 
               
               
                 A4 =  
                   2.7765E−02 
                   1.0588E−02 
                 −7.1071E−03 
                   1.3260E−02 
                 −3.0195E−02 
                 −1.9694E−01 
                 −4.2762E−01 
               
               
                 A6 =  
                 −1.0940E−02 
                 −3.6038E−03 
                 −3.4002E−02 
                 −1.6591E−01 
                 −6.6078E−03 
                   8.1710E−01 
                   1.2764E+00 
               
               
                 A8 =  
                   3.0290E−03 
                   5.7618E−04 
                 −2.2653E−02 
                   2.3576E−01 
                 −4.0512E−02 
                 −1.5870E+00 
                 −2.2493E+00 
               
               
                 A10 =  
                 −6.0027E−04 
                 −6.4619E−05 
                   7.2486E−02 
                 −1.6738E−01 
                 −1.6326E−01 
                   1.2108E+00 
                   1.8818E+00 
               
               
                 A12 =  
                   6.3163E−05 
                   4.3471E−06 
                 −3.7378E−02 
                   
                   
                 −3.5901E−01 
                 −7.0557E−01 
               
               
                 A14 =  
                 −2.4849E−06 
                   9.4975E−02 
               
               
                   
               
               
                 Surface # 
                 9 
                 10 
                 11 
                 12 
                 13 
                 14 
                 15 
               
               
                   
               
               
                 k =  
                 −1.0000E+00 
                 −5.1583E+00 
                 −4.8583E+00 
                 −2.7944E+01 
                 −1.0000E+00 
                 −4.0345E+00 
                 −2.8100E+00 
               
               
                 A4 =  
                 −1.6117E−01 
                 −1.5120E−01 
                 −3.1284E−01 
                   1.7936E−01 
                   9.1615E−02 
                 −2.7332E−02 
                 −5.2791E−02 
               
               
                 A6 =  
                   3.1187E−01 
                   1.9632E−01 
                   4.2083E−01 
                 −1.2747E−01 
                 −6.4614E−02 
                 −6.6064E−03 
                   1.6333E−02 
               
               
                 A8 =  
                 −3.4555E−01 
                 −1.0990E−01 
                 −4.2055E−01 
                   4.7984E−02 
                   2.1014E−02 
                   2.7669E−03 
                 −4.6149E−03 
               
               
                 A10 =  
                   2.3009E−01 
                   6.6267E−02 
                   2.7002E−01 
                 −1.1089E−02 
                 −4.0920E−03 
                 −1.9057E−04 
                   8.4059E−04 
               
               
                 A12 =  
                 −8.0786E−02 
                 −3.2898E−02 
                 −9.1999E−02 
                   1.5085E−03 
                   4.8230E−04 
                 −2.1495E−05 
                 −8.6009E−05 
               
               
                 A14 =  
                   1.1501E−02 
                   8.9963E−03 
                   1.5416E−02 
                 −1.0901E−04 
                 −3.2116E−05 
                   3.2071E−06 
                   4.5503E−06 
               
               
                 A16 =  
                   
                 −9.8960E−04 
                 −1.0136E−03 
                   3.1785E−06 
                   9.2259E−07 
                 −1.0823E−07 
                 −9.7235E−08 
               
               
                   
               
            
           
         
       
     
     In the 8th embodiment, the equation of the aspheric surface profiles of the aforementioned lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the 1st embodiment with corresponding values for the 8th embodiment, so an explanation in this regard will not be provided again. 
     Moreover, these parameters can be calculated from Table 15 and Table 16 as the following values and satisfy the following conditions: 
     
       
         
           
               
             
               
                   
               
               
                 8th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 f [mm] 
                 3.09 
                 |f/f1| + |f/f2| 
                 0.28 
               
               
                   
                 Fno. 
                 1.95 
                 |f/fi|min 
                 0.03 
               
               
                   
                 HFOV [deg.] 
                 46.9 
                 Y11/Y72 
                 0.60 
               
               
                   
                 Nmax 
                 1.669 
                 TL/ImgH 
                 1.69 
               
               
                   
                 CT4/CT5 
                 0.30 
                 f/ImgH 
                 0.90 
               
               
                   
                 (R1 + R2)/(R1 − R2) 
                 0.28 
                 f/EPD 
                 1.95 
               
               
                   
                 (R5 + R6)/(R5 − R6) 
                 0.77 
                 SD/TD 
                 0.75 
               
               
                   
                 (R7 + R8)/(R7 − R8) 
                 −1.14 
                 Yc62/Yc72 
                 1.04 
               
               
                   
                 f/f1 
                 0.25 
                 |SAGc62/Yc62| 
                 0.254 
               
               
                   
                 f/f12 
                 0.24 
                 |Dsr4/Dsr3| 
                 0.30 
               
               
                   
                 |f3/f1| 
                 0.17 
                 |Dsr5/Dsr6| 
                 0.11 
               
               
                   
                 |f5/f1| 
                 0.22 
               
               
                   
                   
               
            
           
         
       
     
     In the photographing lens assembly according to the 8th embodiment, when the focal length of the photographing lens assembly is f, a curvature radius of an object-side surface of one of the lens elements of the photographing lens assembly is Rf, and a curvature radius of an image-side surface of the lens element of the photographing lens assembly is Rr, the value of the condition |f/Rf|+|f/Rr| corresponding to each of the first lens element  810  through the seventh lens element  870  is listed in the following table, wherein term definitions of the parameters related to each surface of the lens elements are the same as those of the 1st embodiment. Therefore, an explanation in this regard will not be provided again. 
     
       
         
           
               
             
               
                   
               
               
                 8th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 |f/Rf| + |f/Rr| 
                 |f/R1| + |f/R2| 
                 0.47 
                 |f/Rf| + |f/Rr| 
                  |f/R9| + |f/R10| 
                 4.13 
               
               
                   
                 |f/R3| + |f/R4| 
                 3.30 
                   
                 |f/R11| + |f/R12| 
                 0.94 
               
               
                   
                 |f/R5| + |f/R6| 
                 2.55 
                   
                 |f/R13| + |f/R14| 
                 6.65 
               
               
                   
                 |f/R7| + |f/R8| 
                 2.02 
               
               
                   
               
            
           
         
       
     
     Furthermore, in the photographing lens assembly according to the 8th embodiment, two lens elements of the first lens element  810 , the second lens element  820 , the third lens element  830 , the fourth lens element  840 , the fifth lens element  850 , the sixth lens element  860 , and the seventh lens element  870  have the Abbe numbers less than 25.0, which are the second lens element  820  and the fourth lens element  840 . 
     In the photographing lens assembly according to the 8th embodiment, when a maximum optical effective radius of the object-side surface  811  of the first lens element  810  is Y11, a maximum optical effective radius of the object-side surface  821  of the second lens element  820  is Y21, a maximum optical effective radius of the object-side surface  831  of the third lens element  830  is Y31, a maximum optical effective radius of the object-side surface  841  of the fourth lens element  840  is Y41, and a maximum optical effective radius of the object-side surface  851  of the fifth lens element  850  is Y51, the following conditions are satisfied: Y11&gt;Y21; Y11&gt;Y31; Y11&gt;Y41; and Y11&gt;Y51. 
     9th Embodiment 
       FIG.  17    is a schematic view of an imaging apparatus according to the 9th embodiment of the present disclosure.  FIG.  18    shows spherical aberration curves, astigmatic field curves and a distortion curve of the imaging apparatus according to the 9th embodiment. In  FIG.  17   , the imaging apparatus includes a photographing lens assembly (its reference numeral is omitted) and an image sensor  995 . The photographing lens assembly includes, in order from an object side to an image side, a first lens element  910 , a second lens element  920 , an aperture stop  900 , a third lens element  930 , a fourth lens element  940 , a fifth lens element  950 , a sixth lens element  960 , a seventh lens element  970 , a filter  980  and an image surface  990 . The image sensor  995  is disposed on the image surface  990  of the photographing lens assembly. The photographing lens assembly includes seven lens elements ( 910 ,  920 ,  930 ,  940 ,  950 ,  960  and  970 ) without additional one or more lens elements inserted between the first lens element  910  and the seventh lens element  970 , and there is an air gap in a paraxial region between each of adjacent lens elements of the seven lens elements ( 910 - 970 ). 
     The first lens element  910  with positive refractive power has an object-side surface  911  being convex in a paraxial region thereof and an image-side surface  912  being concave in a paraxial region thereof. The first lens element  910  is made of a plastic material, and has the object-side surface  911  and the image-side surface  912  being both aspheric. Furthermore, each of the object-side surface  911  and the image-side surface  912  of the first lens element  910  includes at least one inflection point. 
     The second lens element  920  with negative refractive power has an object-side surface  921  being convex in a paraxial region thereof and an image-side surface  922  being concave in a paraxial region thereof. The second lens element  920  is made of a plastic material, and has the object-side surface  921  and the image-side surface  922  being both aspheric. 
     The third lens element  930  with positive refractive power has an object-side surface  931  being concave in a paraxial region thereof and an image-side surface  932  being convex in a paraxial region thereof. The third lens element  930  is made of a plastic material, and has the object-side surface  931  and the image-side surface  932  being both aspheric. 
     The fourth lens element  940  with negative refractive power has an object-side surface  941  being convex in a paraxial region thereof and an image-side surface  942  being concave in a paraxial region thereof. The fourth lens element  940  is made of a plastic material, and has the object-side surface  941  and the image-side surface  942  being both aspheric. 
     The fifth lens element  950  with positive refractive power has an object-side surface  951  being concave in a paraxial region thereof and an image-side surface  952  being convex in a paraxial region thereof. The fifth lens element  950  is made of a plastic material, and has the object-side surface  951  and the image-side surface  952  being both aspheric. Furthermore, each of the object-side surface  951  and the image-side surface  952  of the fifth lens element  950  includes at least one inflection point. 
     The sixth lens element  960  with negative refractive power has an object-side surface  961  being concave in a paraxial region thereof and an image-side surface  962  being concave in a paraxial region thereof. The sixth lens element  960  is made of a plastic material, and has the object-side surface  961  and the image-side surface  962  being both aspheric. Furthermore, each of the object-side surface  961  and the image-side surface  962  of the sixth lens element  960  includes at least one inflection point, and the image-side surface  962  of the sixth lens element  960  includes at least one convex shape in an off-axis region thereof. 
     The seventh lens element  970  with negative refractive power has an object-side surface  971  being convex in a paraxial region thereof and an image-side surface  972  being concave in a paraxial region thereof. The seventh lens element  970  is made of a plastic material, and has the object-side surface  971  and the image-side surface  972  being both aspheric. Furthermore, each of the object-side surface  971  and the image-side surface  972  of the seventh lens element  970  includes at least one inflection point, and the image-side surface  972  of the seventh lens element  970  includes at least one convex shape in an off-axis region thereof. 
     The filter  980  is made of a glass material and located between the seventh lens element  970  and the image surface  990 , and will not affect the focal length of the photographing lens assembly. 
     The detailed optical data of the 9th embodiment are shown in Table 17 and the aspheric surface data are shown in Table 18 below. 
     
       
         
           
               
             
               
                 TABLE 17 
               
             
            
               
                   
               
               
                 9th Embodiment 
               
               
                 f = 3.12 mm, Fno = 2.17, HFOV = 45.9 deg. 
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface 
                   
                   
                   
                   
                   
                   
                 Focal 
               
               
                 # 
                   
                 Curvature Radius 
                 Thickness 
                 Material 
                 Index 
                 Abbe # 
                 Length 
               
               
                   
               
               
                  0 
                 Object 
                 Plano 
                 Infinity 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  1 
                 Lens 1 
                      9.940 
                 ASP 
                 0.570 
                 Plastic 
                 1.534 
                 55.9 
                 18.62 
               
               
                  2 
                   
                 195198.126 
                 ASP 
                 0.260 
                   
                   
                   
                   
               
               
                  3 
                 Lens 2 
                      1.908 
                 ASP 
                 0.235 
                 Plastic 
                 1.669 
                 19.5 
                 −31.66  
               
               
                  4 
                   
                      1.664 
                 ASP 
                 0.202 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 5 
                 Ape. Stop 
                 Plano 
                 0.044 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                  6 
                 Lens 3 
                    −24.308 
                 ASP 
                 0.783 
                 Plastic 
                 1.544 
                 56.0 
                  2.63 
               
               
                  7 
                   
                     −1.368 
                 ASP 
                 0.033 
                   
                   
                   
                   
               
               
                  8 
                 Lens 4 
                      4.338 
                 ASP 
                 0.298 
                 Plastic 
                 1.660 
                 20.4 
                 −8.03 
               
               
                  9 
                   
                      2.320 
                 ASP 
                 0.586 
                   
                   
                   
                   
               
               
                 10 
                 Lens 5 
                     −2.077 
                 ASP 
                 0.747 
                 Plastic 
                 1.544 
                 56.0 
                  2.33 
               
               
                 11 
                   
                     −0.886 
                 ASP 
                 0.030 
                   
                   
                   
                   
               
               
                 12 
                 Lens 6 
                     −5.697 
                 ASP 
                 0.415 
                 Plastic 
                 1.582 
                 30.2 
                 −9.72 
               
               
                 13 
                   
                    925.455 
                 ASP 
                 0.099 
                   
                   
                   
                   
               
               
                 14 
                 Lens 7 
                      2.327 
                 ASP 
                 0.402 
                 Plastic 
                 1.535 
                 56.3 
                 −2.79 
               
               
                 15 
                   
                      0.854 
                 ASP 
                 0.550 
                   
                   
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 16 
                 Filter 
                 Plano 
                 0.210 
                 Glass 
                 1.517 
                 64.2 
                 — 
               
               
                 17 
                   
                 Plano 
                 0.242 
                   
                   
                   
                   
               
               
                 18 
                 Image 
                 Plano 
                 — 
               
               
                   
               
               
                 Reference wavelength is 587.6 nm (d-line). 
               
            
           
         
       
     
     
       
         
           
               
             
               
                 TABLE 18 
               
               
                   
               
               
                 Aspheric Coefficients 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 Surface # 
                 1 
                 2 
                 3 
                 4 
                 6 
                 7 
                 8 
               
               
                   
               
               
                 k =  
                 −1.6969E+01 
                   1.9966E+01 
                 −7.1580E+00 
                 −4.9182E+00 
                 −9.8569E+01 
                 −8.1803E−01 
                 −2.4926E+00 
               
               
                 A4 =  
                   2.7193E−02 
                   1.5003E−02 
                 −2.2390E−02 
                 −1.3514E−02 
                 −6.9936E−02 
                 −5.8009E−02 
                 −1.3263E−01 
               
               
                 A6 =  
                 −5.6057E−03 
                 −8.4630E−03 
                 −1.3238E−01 
                 −1.2278E−01 
                 −9.3070E−02 
                   4.3729E−02 
                   1.7276E−01 
               
               
                 A8 =  
                   1.0661E−03 
                   1.9098E−03 
                   7.5399E−02 
                   8.7679E−02 
                 −1.5487E−02 
                 −2.7181E−01 
                 −2.3480E−01 
               
               
                 A10 =  
                 −1.1555E−04 
                 −3.2022E−04 
                   5.9118E−02 
                   1.0898E−01 
                 −1.2516E−01 
                   3.2952E−01 
                   2.0885E−01 
               
               
                 A12 =  
                 −6.3321E−05 
                   2.7035E−05 
                 −3.2411E−02 
                   
                   
                 −2.0345E−01 
                 −1.0080E−01 
               
               
                 A14 =  
                   1.0697E−05 
                   
                   
                   
                   
                   
                   1.9903E−02 
               
               
                   
               
               
                 Surface # 
                 9 
                 10 
                 11 
                 12 
                 13 
                 14 
                 15 
               
               
                   
               
               
                 k =  
                 −9.7020E+00 
                 −3.1749E+00 
                 −3.4722E+00 
                   4.1183E+00 
                 −9.7199E+01 
                 −4.3875E+00 
                 −4.0393E+00 
               
               
                 A4 =  
                 −6.5712E−02 
                 −8.9809E−02 
                 −2.1553E−01 
                   9.5993E−02 
                   1.4670E−01 
                 −7.5928E−02 
                 −7.6894E−02 
               
               
                 A6 =  
                   9.1371E−02 
                   7.0873E−03 
                   2.2741E−01 
                   5.0757E−03 
                 −1.0623E−01 
                   2.2696E−02 
                   3.3865E−02 
               
               
                 A8 =  
                 −9.3258E−02 
                   1.0607E−01 
                 −1.7427E−01 
                 −6.1478E−02 
                   3.8692E−02 
                 −1.0933E−02 
                 −1.2281E−02 
               
               
                 A10 =  
                   5.8810E−02 
                 −8.3344E−02 
                   8.5816E−02 
                   4.2867E−02 
                 −8.8017E−03 
                   4.0576E−03 
                   2.7665E−03 
               
               
                 A12 =  
                 −1.9458E−02 
                   3.4572E−02 
                 −1.2529E−02 
                 −1.4393E−02 
                   1.1833E−03 
                 −7.8123E−04 
                 −3.4995E−04 
               
               
                 A14 =  
                   2.6783E−03 
                 −8.6613E−03 
                 −3.3488E−03 
                   2.4433E−03 
                 −8.2591E−05 
                   7.3147E−05 
                   2.2962E−05 
               
               
                 A16 =  
                   
                   9.9733E−04 
                   8.6784E−04 
                 −1.6743E−04 
                   2.0661E−06 
                 −2.6703E−06 
                 −6.1305E−07 
               
               
                   
               
            
           
         
       
     
     In the 9th embodiment, the equation of the aspheric surface profiles of the aforementioned lens elements is the same as the equation of the 1st embodiment. Also, the definitions of these parameters shown in the following table are the same as those stated in the 1st embodiment with corresponding values for the 9th embodiment, so an explanation in this regard will not be provided again. 
     Moreover, these parameters can be calculated from Table 17 and Table 18 as the following values and satisfy the following conditions: 
     
       
         
           
               
             
               
                   
               
               
                 9th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 f [mm] 
                 3.12 
                 |f/f1| + |f/f2| 
                 0.27 
               
               
                   
                 Fno. 
                 2.17 
                 |f/fi|min 
                 0.10 
               
               
                   
                 HFOV [deg.] 
                 45.9 
                 Y11/Y72 
                 0.66 
               
               
                   
                 Nmax 
                 1.669 
                 TL/ImgH 
                 1.73 
               
               
                   
                 CT4/CT5 
                 0.40 
                 f/ImgH 
                 0.94 
               
               
                   
                 (R1 + R2)/(R1 − R2) 
                 −1.00 
                 f/EPD 
                 2.17 
               
               
                   
                 (R5 + R6)/(R5 − R6) 
                 1.12 
                 SD/TD 
                 0.73 
               
               
                   
                 (R7 + R8)/(R7 − R8) 
                 3.30 
                 Yc62/Yc72 
                 0.91 
               
               
                   
                 f/f1 
                 0.17 
                 |SAGc62/Yc62| 
                 0.095 
               
               
                   
                 f/f12 
                 0.08 
                 |Dsr4/Dsr3| 
                 0.46 
               
               
                   
                 |f3/f1| 
                 0.14 
                 |Dsr5/Dsr6| 
                 0.05 
               
               
                   
                 |f5/f1| 
                 0.12 
               
               
                   
                   
               
            
           
         
       
     
     In the photographing lens assembly according to the 9th embodiment, when the focal length of the photographing lens assembly is f, a curvature radius of an object-side surface of one of the lens elements of the photographing lens assembly is Rf, and a curvature radius of an image-side surface of the lens element of the photographing lens assembly is Rr, the value of the condition |f/Rf|+|f/Rr| corresponding to each of the first lens element  910  through the seventh lens element  970  is listed in the following table, wherein term definitions of the parameters related to each surface of the lens elements are the same as those of the 1st embodiment. Therefore, an explanation in this regard will not be provided again. 
     
       
         
           
               
             
               
                   
               
               
                 9th Embodiment 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 |f/Rf| + |f/Rr| 
                 |f/R1| + |f/R2| 
                 0.31 
                 |f/Rf| + |f/Rr| 
                  |f/R9| + |f/R10| 
                 5.02 
               
               
                   
                 |f/R3| + |f/R4| 
                 3.51 
                   
                 |f/R11| + |f/R12| 
                 0.55 
               
               
                   
                 |f/R5| + |f/R6| 
                 2.41 
                   
                 |f/R13| + |f/R14| 
                 4.99 
               
               
                   
                 |f/R7| + |f/R8| 
                 2.06 
               
               
                   
               
            
           
         
       
     
     Furthermore, in the photographing lens assembly according to the 9th embodiment, two lens elements of the first lens element  910 , the second lens element  920 , the third lens element  930 , the fourth lens element  940 , the fifth lens element  950 , the sixth lens element  960 , and the seventh lens element  970  have the Abbe numbers less than 25.0, which are the second lens element  920  and the fourth lens element  940 . 
     In the photographing lens assembly according to the 9th embodiment, when a maximum optical effective radius of the object-side surface  911  of the first lens element  910  is Y11, a maximum optical effective radius of the object-side surface  921  of the second lens element  920  is Y21, a maximum optical effective radius of the object-side surface  931  of the third lens element  930  is Y31, a maximum optical effective radius of the object-side surface  941  of the fourth lens element  940  is Y41, and a maximum optical effective radius of the object-side surface  951  of the fifth lens element  950  is Y51, the following conditions are satisfied: Y11&gt;Y21; Y11&gt;Y31; Y11&gt;Y41; and Y11&gt;Y51. 
     10th Embodiment 
       FIG.  23    is a three-dimensional view of an imaging apparatus  10  according to the 10th embodiment of the present disclosure. In  FIG.  23   , the imaging apparatus  10  according to the 10th embodiment is a camera module. The imaging apparatus  10  includes an imaging lens module  11 , a driving apparatus  12  and an image sensor  13 , wherein the imaging lens module  11  includes the photographing lens assembly according to the 1st embodiment and a barrel (its reference numeral is omitted) for carrying the photographing lens assembly. An image of an imaged object can be captured by the imaging apparatus  10  via the imaging lens module  11 , the driving apparatus  12  is used to bring the image into focus so that the image can be clearly formed on the image sensor  13 , and then the image data is generated. 
     The driving apparatus  12  can have an auto-focus functionality, and a driving method thereof can use a voice coil motor (VCM), a micro electro-mechanical system (MEMS), a piezoelectric system or a shape memory alloy system. The driving apparatus  12  enables the photographing lens assembly to obtain a preferable imaging position, so that clear images of the imaged object at different object distances can be obtained. 
     The image sensor  13  of the imaging apparatus  10  can have the properties of high photosensitivity and low noise (such as CMOS and CCD) and is disposed on the image surface of the photographing lens assembly, so that high image quality of the photographing lens assembly can be obtained. 
     Moreover, the imaging apparatus  10  can further include an image stabilizing module  14 . The image stabilizing module  14  can exemplarily include an accelerator, a gyro sensor or a Hall Effect sensor. In the 10th embodiment, the image stabilizing module  14  is a gyro sensor. However, it is only exemplary and the image stabilizing module  14  is not limited thereto. By adjusting to movements in different axial directions of the photographing lens assembly, the image blur due to motion during exposure can be compensated, so that the image quality of dynamic or low-light scenes can be enhanced. Moreover, advanced image compensation functions, such as optical image stabilization (OIS) or electronic image stabilization (EIS), can be provided. 
     11th Embodiment 
       FIG.  24 A  is a schematic view showing a side of an electronic device  20  according to the 11th embodiment of the present disclosure.  FIG.  24 B  is a schematic view showing another side of the electronic device  20  in  FIG.  24 A .  FIG.  24 C  is a block diagram of the electronic device  20  in  FIG.  24 A . In  FIG.  24 A ,  FIG.  24 B  and  FIG.  24 C , the electronic device  20  of the 11th embodiment is a smartphone. The electronic device  20  includes an imaging apparatus  10   a , an imaging apparatus  10   b , a flash module  21 , a focusing assist module  22 , an image signal processor  23 , a user interface  24  and an image software processor  25 . The imaging apparatus  10   a  is a camera module. The imaging apparatus  10   a  includes an imaging lens module  11   a , a driving apparatus  12   a , an image sensor  13   a  and an image stabilizing module  14   a . The imaging apparatus  10   a  according to the 11th embodiment can be the same as the imaging apparatus  10  according to the 10th embodiment, and will not be repeated herein. The imaging apparatus  10   b  is a camera module. The imaging apparatus  10   b  includes an imaging lens module  11   b , a driving apparatus  12   b , an image sensor  13   b  and an image stabilizing module  14   b . The imaging lens module  11   b  includes an imaging lens assembly and a barrel (its reference numeral is omitted) for carrying the imaging lens assembly. The imaging lens assembly can be identical to or different from the photographing lens assembly according to the present disclosure. The driving apparatus  12   b , the image sensor  13   b  and the image stabilizing module  14   b  can be identical to or different from the driving apparatus  12 , the image sensor  13  and the image stabilizing module  14  of the 10th embodiment, and will not be repeated herein. When a user takes a photograph via the user interface  24 , light rays of the imaged object  26  are focused by the electronic device  20  via the imaging apparatus  10   a  and/or the imaging apparatus  10   b  for generating an image. Meanwhile, light compensation is provided by the flash module  21 , the object distance of the imaged objected  26  is obtained by the focusing assist module  22  for quick focusing, and an optimized image processing is provided by the image signal processor  23  and the image software processor  25 , so that the image quality of the photographing lens assembly can be further enhanced. The focusing assist module  22  can adopt conventional infrared or laser for quick focusing. The user interface  24  can adopt a touch screen or a physical button, and image processing software can be utilized through the user interface  24  for providing a variety of photographing modes and image editing functions. 
     12th Embodiment 
       FIG.  25    is a schematic view of an electronic device  30  according to the 12th embodiment of the present disclosure. The electronic device  30  of the 12th embodiment is a tablet personal computer. The electronic device  30  includes an imaging apparatus  31 . The imaging apparatus  31  can be the same as that of the 10th embodiment, and will not be repeated herein. 
     13th Embodiment 
       FIG.  26    is a schematic view of an electronic device  40  according to the 13th embodiment of the present disclosure. The electronic device  40  of the 13th embodiment is a wearable device. The electronic device  40  includes an imaging apparatus  41 . The imaging apparatus  41  can be the same as that of the 10th embodiment, and will not be repeated herein. 
     The foregoing description, for purpose of explanation, has been described with reference to specific embodiments. It is to be noted that TABLES 1-18 show different data of the different embodiments; however, the data of the different embodiments are obtained from experiments. The embodiments were chosen and described in order to best explain the principles of the disclosure and its practical applications, to thereby enable others skilled in the art to best utilize the disclosure and various embodiments with various modifications as are suited to the particular use contemplated. The embodiments depicted above and the appended drawings are exemplary and are not intended to be exhaustive or to limit the scope of the present disclosure to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings.