Patent Publication Number: US-2021173168-A1

Title: Imaging lens assembly and electronic device

Description:
RELATED APPLICATIONS 
     This application claims priority to Taiwan Application Serial Number 108144800, filed Dec. 6, 2019, which is herein incorporated by reference. 
     BACKGROUND 
     Technical Field 
     The present disclosure relates to an imaging lens assembly. More particularly, the present disclosure relates to an imaging lens assembly applicable to portable electronic devices. 
     Description of Related Art 
     In recent years, portable electronic devices have developed rapidly. For example, intelligent electronic devices and tablets have been filled in the lives of modern people, and imaging lens assemblies mounted on portable electronic devices have also prospered. However, as technology advances, the quality requirements of imaging lens assembly are becoming higher and higher. Therefore, an imaging lens assembly with an efficiency of blocking the non-imaging light needs to be developed. 
     SUMMARY 
     According to one aspect of the present disclosure, an imaging lens assembly has an optical axis, and includes a plastic carrier element and an imaging lens element set. The plastic carrier element includes an object-side surface, an image-side surface, an outer surface and an inner surface. The object-side surface includes an object-side opening. The image-side surface includes an image-side opening. The inner surface is connected to the object-side opening and the image-side opening. The imaging lens element set is disposed in the plastic carrier element, and includes at least three lens elements. Each of at least two adjacent lens elements of the lens elements includes a first axial assembling structure, and the first axial assembling structures are corresponding to and connected to each other. A solid medium interval is maintained between the adjacent lens elements and the inner surface. The solid medium interval is directly contacted with the adjacent lens elements and the inner surface. When an angle between the solid medium interval at a plane vertical to the optical axis and the optical axis is θm, the following condition is satisfied: 90 degrees≤θm≤360 degrees. 
     According to another aspect of the present disclosure, an imaging lens assembly has an optical axis, and includes a plastic carrier element and an imaging lens element set. The plastic carrier element includes an object-side surface, an image-side surface, an outer surface and an inner surface. The object-side surface includes an object-side opening. The image-side surface includes an image-side opening. The inner surface is connected to the object-side opening and the image-side opening. The imaging lens element set is disposed in the plastic carrier element, and includes at least three lens elements. Each of at least two adjacent lens elements of the lens elements includes a first axial assembling structure, and the first axial assembling structures are corresponding to and connected to each other. A solid medium interval is maintained between the adjacent lens elements and the inner surface. The solid medium interval is directly contacted with the adjacent lens elements and the inner surface. A range of an outer periphery of at least one lens element of the lens elements directly contacted with the solid medium interval is larger than a range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval at a plane vertical to the optical axis. When a space width of the solid medium interval between the adjacent lens elements and the inner surface is d, the following condition is satisfied: 0.01 mm≤d&lt;0.18 mm. 
     According to one aspect of the present disclosure, an electronic device includes the imaging lens assembly of the aforementioned aspect and an image sensor. The image sensor is disposed on an image surface of the imaging lens assembly. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1A  is an exploded view of an imaging lens assembly according to the 1st example of the present disclosure. 
         FIG. 1B  is an assembling schematic view of the imaging lens assembly according to the 1st example in  FIG. 1A . 
         FIG. 1C  is a partial enlarged view of the imaging lens assembly according to the 1st example in  FIG. 1B . 
         FIG. 1D  is a partial cross-sectional view of the imaging lens assembly according to the 1st example in  FIG. 1A . 
         FIG. 1E  is a plane view of the plastic carrier element and the second lens element according to the 1st example in  FIG. 1D . 
         FIG. 1F  is a partial enlarged view of the second lens element according to the 1st example in  FIG. 1A . 
         FIG. 1G  is a plane view of the second lens element according to the 1st example in  FIG. 1F . 
         FIG. 1H  is a schematic view of parameters according to the 1st example in  FIG. 1A . 
         FIG. 2A  is a schematic view of an imaging lens assembly according to the 2nd example of the present disclosure. 
         FIG. 2B  is a partial enlarged view of the imaging lens assembly according to the 2nd example in  FIG. 2A . 
         FIG. 2C  is an assembling schematic view of the imaging lens assembly according to the 2nd example in  FIG. 2A . 
         FIG. 2D  is a plane view of the plastic carrier element and the second lens element according to the 2nd example in  FIG. 2A . 
         FIG. 2E  is a schematic view of parameters according to the 2nd example in  FIG. 2A . 
         FIG. 3A  is a schematic view of an imaging lens assembly according to the 3rd example of the present disclosure. 
         FIG. 3B  is a partial enlarged view of the imaging lens assembly according to the 3rd example in  FIG. 3A . 
         FIG. 3C  is an assembling schematic view of the imaging lens assembly according to the 3rd example in  FIG. 3A . 
         FIG. 3D  is a plane view of the plastic carrier element and the second lens element according to the 3rd example in  FIG. 3A . 
         FIG. 4A  is an exploded view of an imaging lens assembly according to the 4th example of the present disclosure. 
         FIG. 4B  is an assembling schematic view of the imaging lens assembly according to the 4th example in  FIG. 4A . 
         FIG. 4C  is a partial enlarged view of the imaging lens assembly according to the 4th example in  FIG. 4B . 
         FIG. 4D  is a partial cross-sectional view of the imaging lens assembly according to the 4th example in  FIG. 4A . 
         FIG. 4E  is a plane view of the plastic carrier element and the second lens element according to the 4th example in  FIG. 4D . 
         FIG. 4F  is a plane view of the plastic carrier element according to the 4th example in  FIG. 4A . 
         FIG. 4G  is a schematic view of parameters according to the 4th example in  FIG. 4A . 
         FIG. 5A  is an exploded view of an imaging lens assembly according to the 5th example of the present disclosure. 
         FIG. 5B  is an assembling schematic view of the imaging lens assembly according to the 5th example in  FIG. 5A . 
         FIG. 5C  is a partial enlarged view of the imaging lens assembly according to the 5th example in  FIG. 5B . 
         FIG. 5D  is a partial cross-sectional view of the imaging lens assembly according to the 5th example in  FIG. 5A . 
         FIG. 5E  is a plane view of the plastic carrier element and the second lens element according to the 5th example in  FIG. 5D . 
         FIG. 5F  is a plane view of the second lens element according to the 5th example in  FIG. 5A . 
         FIG. 6A  is an exploded view of an electronic device according to the 6th example of the present disclosure. 
         FIG. 6B  is a schematic view of an imaging lens assembly according to the 6th example in  FIG. 6A . 
         FIG. 6C  is a partial enlarged view of the imaging lens assembly according to the 6th example in  FIG. 6B . 
         FIG. 6D  is a plane view of the plastic carrier element and the second lens element according to the 6th example in  FIG. 6A . 
         FIG. 7A  is an exploded view of an imaging lens assembly according to the 7th example of the present disclosure. 
         FIG. 7B  is an assembling schematic view of the imaging lens assembly according to the 7th example in  FIG. 7A . 
         FIG. 7C  is a partial cross-sectional view of the imaging lens assembly according to the 7th example in  FIG. 7A . 
         FIG. 7D  is a plane view of the plastic carrier element and the first lens element according to the 7th example in  FIG. 7C . 
         FIG. 7E  is a plane view of the first lens element according to the 7th example in  FIG. 7A . 
         FIG. 7F  is a schematic view of parameters according to the 7th example in 
         FIG. 7A . 
         FIG. 8A  is a schematic view of an electronic device according to the 8th example of the present disclosure. 
         FIG. 8B  is a block diagram of the electronic device according to the 8th example in  FIG. 8A . 
         FIG. 8C  is a schematic view of selfie scene according to the 8th example in  FIG. 8A . 
         FIG. 8D  is a schematic view of a captured image according to the 8th example in  FIG. 8A . 
     
    
    
     DETAILED DESCRIPTION 
     The present disclosure provides an imaging lens assembly. The imaging lens assembly has an optical axis, and includes a plastic carrier element and an imaging lens element set. The plastic carrier element includes an object-side surface, an image-side surface, an outer surface and an inner surface. The object-side surface includes an object-side opening. The image-side surface includes an image-side opening. The inner surface is connected to the object-side opening and the image-side opening. The imaging lens element set is disposed in the plastic carrier element, and includes at least three lens elements. Each of at least two adjacent lens elements of the lens elements includes a first axial assembling structure, and the first axial assembling structures are corresponding to and connected to each other. A solid medium interval is maintained between the lens elements and the inner surface. The solid medium interval is directly contacted with the lens elements and the inner surface. Furthermore, a coaxiality between the lens elements is maintained via the first axial assembling structures. 
     A range of an outer periphery of at least one lens element of the lens elements directly contacted with the solid medium interval is larger than a range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval at a plane vertical to the optical axis. Furthermore, a large coating range in the plastic carrier element is favorable for strengthening an entire assembling structure. Therefore, the built-in stability is provided, and an efficiency of blocking the non-imaging light is enhanced. Furthermore, the plastic carrier element can be a plastic lens barrel or a single member, which is integrally formed of the plastic lens barrel and a carrier element by injection molding. 
     A medium material can be a thermosetting adhesive, a photocuring adhesive, a light-absorbing layer or a black coating material, but is not limited thereto. Therefore, it is favorable for enhancing the efficiency of blocking the non-imaging light. 
     By the precise coating technique of the present disclosure, the medium material of the solid medium interval is disposed on the inner surface of the plastic carrier element, and then the imaging lens element set is further assembled in the plastic carrier element, wherein the medium material can be also coated on a specific area of the imaging lens element set according to the light-blocking requirement, but is not limited thereto. By devising a proper spacing between the lens elements and the plastic carrier element, the medium material evenly extends to an ideal coating position between the lens elements and the plastic carrier element by capillarity, and it is different from the technique of prior art, which is spot gluing from the tunnel connected to outside after assembling. Therefore, it is favorable for controlling an ideal coating range of the medium material. 
     The plastic carrier element can further include a glue-escaping groove, and the glue-escaping groove can be annular or strip-shaped, but is not limited thereto. In detail, the medium material of the solid medium interval is originally liquid, and the medium material can be accumulated in the glue-escaping groove. After assembling the imaging lens element set, the medium material extends to other area of the inner surface by capillarity, and the medium material is formed the solid medium interval after solidifying. Therefore, it is favorable for controlling the medium material coated on the ideal coating range and preventing the overflow of the medium material. 
     The at least one lens element of the lens elements can include a plurality of protruding structures protruding along a direction vertical to the optical axis and regularly arranged around an outer periphery of the at least one lens element of the lens elements, and the solid medium interval are directly contacted with the protruding structures. In detail, the medium material can be pulled along the inner surface via the protruding structures during assembling the lens elements, and the medium material can be more entirely coated between the plastic carrier element and the lens elements. Therefore, it is favorable for more ideally developing capillarity. 
     An outer region of the at least one lens element of the lens elements can be totally non-contacted with the inner surface of the plastic carrier element. Therefore, an accommodating space of the medium material can be provided, and the interference during assembling can be decreased to enhance the assembling velocity. 
     An air gap can be further included between the lens elements and the inner surface, and the air gap along a radial direction is closer to the optical axis than the solid medium interval to the optical axis. Therefore, it is favorable for stably controlling the coating technique to avoid the medium material overflowing to an optical area of the imaging lens element set. 
     The at least one lens element of the lens elements can include an annular groove structure, wherein at least one of the solid medium interval and the air gap is interconnected to the annular groove structure. Therefore, the anti-overflow mechanism can be provided, and the anti-overflow mechanism can also be an air-venting space during assembling. 
     A cement material can be disposed between the lens elements, and the lens elements are cemented to each other to form a cemented lens group, wherein the first axial assembling structure of each of the lens elements surrounds the cement material. In detail, the two lens elements are cemented to each other via the cement material, and the cement material has the optical tortuosity. Therefore, it is favorable for enhancing the stability and the coaxiality between the lens elements, and the optical tortuosity can be provided to promote the optical image quality. 
     The solid medium interval can be made of an opaque material. Therefore, it is favorable for preventing the non-imaging light is transmitted in the solid medium interval. 
     The first axial assembling structures can be relatively disposed on the optical axis. In detail, the first axial assembling structures with annular can be regarded as a combination of a plurality of relatively disposed axial assembling structures. Therefore, it is favorable for decreasing the possibility of the axis offset, the relative uniformity of the width of the solid medium interval can be maintained, and the effect of capillarity can be more symmetrical. 
     Each of the plastic carrier element and the at least one lens element of the lens elements closest to an object side of the imaging lens element set can include a second axial assembling structure, and the second axial assembling structures are corresponding to and connected to each other. Therefore, the coaxiality between the plastic carrier element and the lens element can be provided. 
     The solid medium interval can be a closed full ring shape, and the solid medium interval surrounds the imaging lens element set. In detail, the medium material is evenly disposed on the outer periphery of the imaging lens element set. Therefore, the deformation between elements is not easily formed after the medium material solidifying to form the solid medium interval. 
     A driving apparatus can be disposed on the outer surface of the plastic carrier element, and the driving apparatus is for driving the imaging lens assembly to move along a direction parallel to the optical axis. In detail, the driving apparatus can be a coil element or a magnet element, but is not limited thereto. Therefore, the possibility of the autofocus of the imaging lens assembly can be provided. 
     When an angle between the solid medium interval at the plane vertical to the optical axis and the optical axis is θm, the following condition is satisfied: 90 degrees≤θm≤360 degrees. Furthermore, θm can be a right angle, an obtuse angle, a straight angle, a reflex angle or a full angle. Therefore, it is favorable for simultaneously capturing the stray light from every direction to enhance the efficiency of blocking the non-imaging light. 
     When a total length of the solid medium interval along the optical axis is L, and a total length of the imaging lens element set along the optical axis is TD, the following condition can be satisfied: 0.20&lt;L/TD&lt;1.20. Therefore, it is favorable for extensively capturing the stray light. Further, the following condition can be satisfied: 0.30&lt;L/TD&lt;1.05. Therefore, the stray light can be more efficiently decreased. 
     When an angle between each of the first axial assembling structures at the plane vertical to the optical axis and the optical axis is ea, the following condition can be satisfied: 60 degrees&lt;θa≤360 degrees. Therefore, the concentric alignment can be obtained at a limited space to decrease the assembling tolerance. 
     When a space width of the solid medium interval between the lens elements and the inner surface is d, the following condition can be satisfied: 0.01 mm≤d&lt;0.18 mm. In detail, the above-mentioned range of d is considered that a sufficient width the solid medium interval needs. Also, the above-mentioned range of d is considered that a width the medium material needs, which the medium material can extensively extends owing to capillarity. Further, the following condition can be satisfied: 0.01 mm≤d&lt;0.10 mm. Therefore, the sufficient optical density can be obtained, and it is favorable for obtaining the better effect of capillarity. 
     When the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval is θm′, and a sum of the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval and the range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval is et, the following condition can be satisfied: 0.55&lt;θm′/θt≤1.0. In detail, et is 360 degrees, and θm′ is a sum of θm. Therefore, it is favorable for extensively capturing the stray light to enhance the optical image quality. 
     Each of the aforementioned features of the imaging lens assembly can be utilized in various combinations for achieving the corresponding effects. 
     The present disclosure provides an electronic device, which includes the aforementioned imaging lens assembly and an image sensor. The image sensor is disposed on an image surface of the imaging lens assembly. 
     According to the aforementioned embodiment, specific examples are provided, and illustrated via figures. 
     1st Example 
       FIG. 1A  is an exploded view of an imaging lens assembly  10  according to the 1st example of the present disclosure.  FIG. 1B  is an assembling schematic view of the imaging lens assembly  10  according to the 1st example in  FIG. 1A .  FIG. 1D  is a partial cross-sectional view of the imaging lens assembly  10  according to the 1st example in  FIG. 1A . In  FIGS. 1A, 1B, 1D , the imaging lens assembly  10  has an optical axis X, and includes a plastic carrier element  110  and an imaging lens element set  120 . The imaging lens element set  120  is disposed in the plastic carrier element  110 . 
     In detail, the plastic carrier element  110  includes an object-side surface  111 , an image-side surface  112 , an outer surface  113  and an inner surface  114 , wherein the object-side surface  111  includes an object-side opening (its reference numeral is omitted), the image-side surface  112  includes an image-side opening (its reference numeral is omitted), and the inner surface  114  is connected to the object-side opening and the image-side opening. Furthermore, the plastic carrier element  110  can be a plastic lens barrel or a single member, which is integrally formed of the plastic lens barrel and a carrier element by injection molding. 
     The imaging lens element set  120  includes at least three lens elements. In detail, according to the 1st example, the imaging lens element set  120 , in order from an object side to an image side, includes a first light blocking sheet, a first lens element  121 , a second light blocking sheet, a second lens element  122 , a third light blocking sheet, a third lens element  123 , a fourth light blocking sheet, a fourth lens element  124 , a first spacer, a fifth lens element  125 , a second spacer, a fifth light blocking sheet, a sixth lens element  126  and a retainer, wherein optical features such as structures, surface shapes and so on of the first lens element  121 , the second lens element  122 , the third lens element  123 , the fourth lens element  124 , the fifth lens element  125  and the sixth lens element  126  can be disposed according to different imaging demand. Further, the optical features are not important to the present disclosure, and the first light blocking sheet to the fifth light blocking sheet, the first spacer, the second spacer and the retainer are not emphases of the present disclosure, so their reference numerals are omitted. 
       FIG. 10  is a partial enlarged view of the imaging lens assembly  10  according to the 1st example in  FIG. 1B . In  FIGS. 1A and 10 , a solid medium interval  130  is maintained between two adjacent lens elements of the at least three lens elements and the inner surface  114 , wherein the solid medium interval  130  is directly contacted with the adjacent lens elements and the inner surface  114 . According to the 1st example, the solid medium interval  130  is maintained between the first lens element  121  and the inner surface  114 , the second lens element  122  and the inner surface  114 , the third lens element  123  and the inner surface  114 , and the fourth lens element  124  and the inner surface  114 , but is not limited thereto. In detail, the solid medium interval  130  includes a medium material (its reference numeral is omitted), and the medium material is disposed on the inner surface  114  or the imaging lens element set  120 , wherein the medium material can be a thermosetting adhesive, a photocuring adhesive, a light-absorbing layer or a black coating material, but is not limited thereto. Therefore, it is favorable for enhancing the efficiency of blocking the non-imaging light. 
     Each of at least two adjacent lens elements of the lens elements includes a first axial assembling structure  127 , and the first axial assembling structures  127  are corresponding to and connected to each other. According to the 1st example, each of an image side of the first lens element  121 , an object side of the second lens element  122 , an image side of the second lens element  122 , an object side of the third lens element  123 , an image side of the third lens element  123  and an object side of the fourth lens element  124  includes the first axial assembling structure  127 . In particular, the first axial assembling structure  127  of the image side of the first lens element  121  is corresponding to and connected to the first axial assembling structure  127  of the object side of the second lens element  122 , the first axial assembling structure  127  of the image side of the second lens element  122  is corresponding to and connected to the first axial assembling structure  127  of the object side of the third lens element  123 , and the first axial assembling structure  127  of the image side of the third lens element  123  is corresponding to and connected to the first axial assembling structure  127  of the object side of the fourth lens element  124 . Therefore, it is favorable for maintaining the coaxiality between the lens elements. 
     Furthermore, the first axial assembling structures  127  are relatively disposed on the optical axis X, and the first axial assembling structures  127  with annular can be regarded as a combination of a plurality of relatively disposed axial assembling structures. Therefore, it is favorable for decreasing the possibility of the axis offset, the relative uniformity of the width of the solid medium interval  130  can be maintained, and the effect of capillarity can be more symmetrical. 
       FIG. 1E  is a plane view of the plastic carrier element  110  and the second lens element  122  according to the 1st example in  FIG. 1D .  FIG. 1F  is a partial enlarged view of the second lens element  122  according to the 1st example in  FIG. 1A .  FIG. 1G  is a plane view of the second lens element  122  according to the 1st example in  FIG. 1F . In  FIGS. 1A, 10, 1E, 1F and 1G , the at least one lens element of the lens elements includes a plurality of protruding structures  128 . According to the 1st example, the at least one element including the protruding structures  128  is the second lens element  122 . The protruding structures  128  protrude along a direction vertical to the optical axis X and are regularly arranged around an outer periphery of the second lens element  122 , and the solid medium interval  130  are directly contacted with the protruding structures  128 . In detail, the medium material can be pulled along the inner surface  114  via the protruding structures  128  during assembling the lens elements, and the medium material can be more entirely coated between the plastic carrier element  110  and the lens elements. Therefore, it is favorable for more ideally developing capillarity. 
     An outer region of the at least one lens element of the lens elements is totally non-contacted with the inner surface  114  of the plastic carrier element  110 . According to the 1st example, an outer region of the second lens element  122 , an outer region of the third lens element  123  and an outer region of the fourth lens element  124  are totally non-contacted with the inner surface  114  of the plastic carrier element  110 . Therefore, an accommodating space of the medium material can be provided, and the interference during assembling can be decreased to enhance the assembling velocity. 
     An air gap  140  is further included between the lens elements and the inner surface  114 , and the air gap  140  along a radial direction is closer to the optical axis X than the solid medium interval  130  to the optical axis X. Therefore, it is favorable for stably controlling the coating technique to avoid the medium material overflowing to an optical area of the imaging lens element set  120 . 
     In  FIGS. 1A and 10 , the at least one lens element of the lens elements includes an annular groove structure  129 , wherein at least one of the solid medium interval  130  and the air gap  140  is interconnected to the annular groove structure  129 . According to the 1st example, both of the first lens element  121  and the third lens element  123  include the annular groove structures  129 . Therefore, the anti-overflow mechanism can be provided, and the anti-overflow mechanism can also be an air-venting space during assembling. 
     In  FIG. 1B , the solid medium interval  130  is made of an opaque material. Therefore, it is favorable for preventing the non-imaging light N is transmitted in the solid medium interval  130 . 
     In  FIG. 1E , a range of an outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  130  is larger than a range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  130  at a plane vertical to the optical axis X. According to the 1st example, a range of an outer periphery of the second lens element  122  directly contacted with the solid medium interval  130  is larger than a range of the outer periphery of the second lens element  122  non-contacted with the solid medium interval  130 . 
     In  FIGS. 1A and 10 , the plastic carrier element  110  further includes a glue-escaping groove  115 , and the glue-escaping groove  115  can be annular or strip-shaped, but is not limited thereto. In detail, the medium material of the solid medium interval  130  is originally liquid, and the medium material can be accumulated in the glue-escaping groove  115 . After assembling the imaging lens element set  120 , the medium material extends to other area of the inner surface  114  by capillarity, and the medium material is formed the solid medium interval  130  after solidifying. Therefore, it is favorable for controlling the medium material coated on the ideal coating range and preventing the overflow of the medium material. 
     In  FIG. 1A , the solid medium interval  130  is a closed full ring shape, and the solid medium interval  130  surrounds the imaging lens element set  120 . In detail, the medium material is evenly disposed on the outer periphery of the imaging lens element set  120 . Therefore, the deformation between elements is not easily formed after the medium material solidifying to form the solid medium interval  130 . 
       FIG. 1H  is a schematic view of parameters according to the 1st example in  FIG. 1A . In  FIGS. 1E, 1G and 1H , according to the 1st example, when an angle between the solid medium interval  130  at the plane vertical to the optical axis X and the optical axis X is θm, the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  130  is θm′, a sum of the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  130  and the range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  130  is et (according to the 1st example, the lens element is the second lens element  122 ), an angle between each of the first axial assembling structures  127  at the plane vertical to the optical axis X and the optical axis X is ea, a total length of the solid medium interval  130  along the optical axis X is L, a total length of the imaging lens element set  120  along the optical axis X is TD, and a space width of the solid medium interval  130  between the lens elements and the inner surface  114  is d (according to the 1st example, the lens element is the third lens element  123 ), the following conditions of the Table 1 are satisfied. 
     
       
         
           
               
             
               
                 TABLE 1 
               
               
                   
               
               
                 1st example 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 θm (degree) 
                 360 
                 L (mm) 
                 1.63 
               
               
                   
                 θm′ (degree) 
                 360 
                 TD (mm) 
                 3.14 
               
               
                   
                 θt (degree) 
                 360 
                 L/TD 
                 0.52 
               
               
                   
                 θm′/θt 
                 1 
                 d (mm) 
                 0.01 
               
               
                   
                 θa (degree) 
                 360 
               
               
                   
                   
               
            
           
         
       
     
     Furthermore, the angle between the solid medium interval  130  at the plane vertical to the optical axis X and the optical axis X is 360 degrees. 
     2nd Example 
       FIG. 2A  is a schematic view of an imaging lens assembly  20  according to the 2nd example of the present disclosure. In  FIG. 2A , the imaging lens assembly  20  has an optical axis X, and includes a plastic carrier element  210  and an imaging lens element set  220 . The imaging lens element set  220  is disposed in the plastic carrier element  210 . 
     In detail, the plastic carrier element  210  includes an object-side surface  211 , an image-side surface  212 , an outer surface  213  and an inner surface  214 , wherein the object-side surface  211  includes an object-side opening (its reference numeral is omitted), the image-side surface  212  includes an image-side opening (its reference numeral is omitted), and the inner surface  214  is connected to the object-side opening and the image-side opening. Furthermore, the plastic carrier element  210  can be a plastic lens barrel or a single member, which is integrally formed of the plastic lens barrel and a carrier element by injection molding. 
     The imaging lens element set  220  includes at least three lens elements. In detail, according to the 2nd example, the imaging lens element set  220 , in order from an object side to an image side, includes a first lens element  221 , a first light blocking sheet, a second lens element  222 , a second light blocking sheet, a third lens element  223 , a third light blocking sheet, a fourth lens element  224 , a first spacer, a fifth lens element  225 , a second spacer, a fourth light blocking sheet, a sixth lens element  226  and a retainer, wherein optical features such as structures, surface shapes and so on of the first lens element  221 , the second lens element  222 , the third lens element  223 , the fourth lens element  224 , the fifth lens element  225  and the sixth lens element  226  can be disposed according to different imaging demand. Further, the optical features are not important to the present disclosure, and the first light blocking sheet to the fourth light blocking sheet, the first spacer, the second spacer and the retainer are not emphases of the present disclosure, so their reference numerals are omitted. 
       FIG. 2B  is a partial enlarged view of the imaging lens assembly  20  according to the 2nd example in  FIG. 2A . In  FIG. 2B , a solid medium interval  230  is maintained between two adjacent lens elements of the at least three lens elements and the inner surface  214 , wherein the solid medium interval  230  is directly contacted with the adjacent lens elements and the inner surface  214 . According to the 2nd example, the solid medium interval  230  is maintained between the first lens element  221  and the inner surface  214 , the second lens element  222  and the inner surface  214 , the third lens element  223  and the inner surface  214 , and the fourth lens element  224  and the inner surface  214 , but is not limited thereto. 
       FIG. 2C  is an assembling schematic view of the imaging lens assembly  20  according to the 2nd example in  FIG. 2A . In  FIG. 2C , the solid medium interval  230  includes a medium material  231 , the medium material  231  is originally liquid, and the medium material  231  is disposed on the inner surface  214  or the imaging lens element set  220 . According to the 2nd example, the medium material  231  is disposed on the inner surface  214 , and the medium material  231  is formed the solid medium interval  230  after solidifying. In detail, the medium material  231  can be a thermosetting adhesive, a photocuring adhesive, a light-absorbing layer or a black coating material, but is not limited thereto. According to the 2nd example, the medium material  231  is the light-absorbing layer, but is not limited thereto. Therefore, it is favorable for enhancing the efficiency of blocking the non-imaging light. 
     In detail, according to the 2nd example, by the precise coating technique, the medium material  231  is disposed on the inner surface  214  of the plastic carrier element  210 , and then the imaging lens element set  220  is further assembled in the plastic carrier element  210 , wherein the medium material  231  can be also coated on a specific area of the imaging lens element set  220  according to the light-blocking requirement, but is not limited thereto. By devising a proper spacing between the lens elements and the plastic carrier element  210 , the medium material  231  evenly extends to an ideal coating position between the lens elements and the plastic carrier element  210  by capillarity, and it is different from the technique of prior art, which is spot gluing from the tunnel connected to outside after assembling. Therefore, it is favorable for controlling an ideal coating range of the medium material  231 . Also, the entire assembling structure can be strengthened to provide the internal stability. 
     Each of at least two adjacent lens elements of the lens elements includes a first axial assembling structure  227 , and the first axial assembling structures  227  are corresponding to and connected to each other. According to the 2nd example, each of an image side of the first lens element  221 , an object side of the second lens element  222 , an image side of the second lens element  222 , an object side of the third lens element  223 , an image side of the third lens element  223  and an object side of the fourth lens element  224  includes the first axial assembling structure  227 . In particular, the first axial assembling structure  227  of the image side of the first lens element  221  is corresponding to and connected to the first axial assembling structure  227  of the object side of the second lens element  222 , the first axial assembling structure  227  of the image side of the second lens element  222  is corresponding to and connected to the first axial assembling structure  227  of the object side of the third lens element  223 , and the first axial assembling structure  227  of the image side of the third lens element  223  is corresponding to and connected to the first axial assembling structure  227  of the object side of the fourth lens element  224 . Therefore, it is favorable for maintaining the coaxiality between the lens elements. 
     Furthermore, the first axial assembling structures  227  are relatively disposed on the optical axis X, and the first axial assembling structures  227  with annular can be regarded as a combination of a plurality of relatively disposed axial assembling structures. Therefore, it is favorable for decreasing the possibility of the axis offset, the relative uniformity of the width of the solid medium interval  230  can be maintained, and the effect of capillarity can be more symmetrical. 
     Each of the plastic carrier element  210  and the at least one lens element of the lens elements closest to an object side of the imaging lens element set  220  includes a second axial assembling structure  216 , and the second axial assembling structures  216  are corresponding to and connected to each other. According to the 2nd example, each of an image side of the plastic carrier element  210  and an object side of the first lens element  221  includes the second axial assembling structure  216 , and the second axial assembling structures  216  are corresponding to and connected to each other. Therefore, the coaxiality between the plastic carrier element  210  and the first lens element  221  can be provided. 
     An outer region of the at least one lens element of the lens elements is totally non-contacted with the inner surface  214  of the plastic carrier element  210 . According to the 2nd example, an outer region of the second lens element  222 , an outer region of the third lens element  223  and an outer region of the fourth lens element  224  are totally non-contacted with the inner surface  214  of the plastic carrier element  210 . Therefore, an accommodating space of the medium material  231  can be provided, and the interference during assembling can be decreased to enhance the assembling velocity. 
     An air gap  240  is further included between the lens elements and the inner surface  214 , and the air gap  240  along a radial direction is closer to the optical axis X than the solid medium interval  230  to the optical axis X. Therefore, it is favorable for stably controlling the coating technique to avoid the medium material  231  overflowing to an optical area of the imaging lens element set  220 . 
     In  FIG. 2B , the at least one lens element of the lens elements includes an annular groove structure  229 , wherein at least one of the solid medium interval  230  and the air gap  240  is interconnected to the annular groove structure  229 . According to the 2nd example, the third lens element  223  includes the annular groove structures  229 . Therefore, the anti-overflow mechanism can be provided, and the anti-overflow mechanism can also be an air-venting space during assembling. 
     The solid medium interval  230  is made of an opaque material. Therefore, it is favorable for preventing the non-imaging light is transmitted in the solid medium interval  230 . 
       FIG. 2D  is a plane view of the plastic carrier element  210  and the second lens element  222  according to the 2nd example in  FIG. 2A . In  FIG. 2D , a range of an outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  230  is larger than a range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  230  at a plane vertical to the optical axis X. According to the 2nd example, a range of an outer periphery of the second lens element  222  directly contacted with the solid medium interval  230  is larger than a range of the outer periphery of the second lens element  222  non-contacted with the solid medium interval  230 . 
     The solid medium interval  230  is a closed full ring shape, and the solid medium interval  230  surrounds the imaging lens element set  220 . In detail, the medium material  231  is evenly disposed on the outer periphery of the imaging lens element set  220 . Therefore, the deformation between elements is not easily formed after the medium material  231  solidifying to form the solid medium interval  230 . 
       FIG. 2E  is a schematic view of parameters according to the 2nd example in  FIG. 2A . In  FIGS. 2D and 2E , according to the 2nd example, when an angle between the solid medium interval  230  at the plane vertical to the optical axis X and the optical axis X is θm, the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  230  is θm′, a sum of the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  230  and the range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  230  is et (according to the 2nd example, the lens element is the second lens element  222 ), an angle between each of the first axial assembling structures  227  at the plane vertical to the optical axis X and the optical axis X is θa, a total length of the solid medium interval  230  along the optical axis X is L, a total length of the imaging lens element set  220  along the optical axis X is TD, and a space width of the solid medium interval  230  between the lens elements and the inner surface  214  is d (according to the 2nd example, the lens element is the first lens element  221 ), the following conditions of the Table 2 are satisfied. 
     
       
         
           
               
             
               
                 TABLE 2 
               
               
                   
               
               
                 2nd example 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 θm (degree) 
                 360 
                 L (mm) 
                 1.582 
               
               
                   
                 θm′ (degree) 
                 360 
                 TD (mm) 
                 3.14 
               
               
                   
                 θt (degree) 
                 360 
                 L/TD 
                 0.50 
               
               
                   
                 θm′/θt 
                 1 
                 d (mm) 
                 0.02 
               
               
                   
                 θa (degree) 
                 360 
               
               
                   
                   
               
            
           
         
       
     
     Furthermore, the angle between the solid medium interval  230  at the plane vertical to the optical axis X and the optical axis X is 360 degrees. 
     3rd Example 
       FIG. 3A  is a schematic view of an imaging lens assembly  30  according to the 3rd example of the present disclosure. In  FIG. 3A , the imaging lens assembly  30  has an optical axis X, and includes a plastic carrier element  310  and an imaging lens element set  320 . The imaging lens element set  320  is disposed in the plastic carrier element  310 . 
     In detail, the plastic carrier element  310  includes an object-side surface  311 , an image-side surface  312 , an outer surface  313  and an inner surface  314 , wherein the object-side surface  311  includes an object-side opening (its reference numeral is omitted), the image-side surface  312  includes an image-side opening (its reference numeral is omitted), and the inner surface  314  is connected to the object-side opening and the image-side opening. Furthermore, the plastic carrier element  310  can be a plastic lens barrel or a single member, which is integrally formed of the plastic lens barrel and a carrier element by injection molding. 
     The imaging lens element set  320  includes at least three lens elements. In detail, according to the 3rd example, the imaging lens element set  320 , in order from an object side to an image side, includes a first lens element  321 , a first light blocking sheet, a second lens element  322 , a second light blocking sheet, a third lens element  323 , a third light blocking sheet, a fourth lens element  324 , a first spacer, a fifth lens element  325 , a second spacer, a fourth light blocking sheet, a sixth lens element  326  and a retainer, wherein optical features such as structures, surface shapes and so on of the first lens element  321 , the second lens element  322 , the third lens element  323 , the fourth lens element  324 , the fifth lens element  325  and the sixth lens element  326  can be disposed according to different imaging demand. Further, the optical features are not important to the present disclosure, and the first light blocking sheet to the fourth light blocking sheet, the first spacer, the second spacer and the retainer are not emphases of the present disclosure, so their reference numerals are omitted. 
       FIG. 3B  is a partial enlarged view of the imaging lens assembly  30  according to the 3rd example in  FIG. 3A . In  FIG. 3B , a solid medium interval  330  is maintained between two adjacent lens elements of the at least three lens elements and the inner surface  314 , wherein the solid medium interval  330  is directly contacted with the adjacent lens elements and the inner surface  314 . According to the 3rd example, the solid medium interval  330  is maintained between the first lens element  321  and the inner surface  314 , the second lens element  322  and the inner surface  314 , the third lens element  323  and the inner surface  314 , and the fourth lens element  324  and the inner surface  314 , but is not limited thereto. 
       FIG. 3C  is an assembling schematic view of the imaging lens assembly  30  according to the 3rd example in  FIG. 3A . In  FIG. 3C , the solid medium interval  330  includes a medium material  331 , the medium material  331  is originally liquid, and the medium material  331  is disposed on the inner surface  314  or the imaging lens element set  320 . According to the 3rd example, the medium material  331  is disposed on the inner surface  314 , and the medium material  331  is formed the solid medium interval  330  after solidifying. In detail, the medium material  331  can be a thermosetting adhesive, a photocuring adhesive, a light-absorbing layer or a black coating material, but is not limited thereto. Therefore, it is favorable for enhancing the efficiency of blocking the non-imaging light. 
     In detail, according to the 3rd example, by the precise coating technique, the medium material  331  is disposed on the inner surface  314  of the plastic carrier element  310 , and then the imaging lens element set  320  is further assembled in the plastic carrier element  310 . Further, by devising a proper spacing between the lens elements and the plastic carrier element  310 , the medium material  331  evenly extends to an ideal coating position between the lens elements and the plastic carrier element  310  by capillarity, and it is different from the technique of prior art, which is spot gluing from the tunnel connected to outside after assembling. Therefore, it is favorable for controlling an ideal coating range of the medium material  331 . Also, the entire assembling structure can be strengthened to provide the internal stability. 
     Each of at least two adjacent lens elements of the lens elements includes a first axial assembling structure  327 , and the first axial assembling structures  327  are corresponding to and connected to each other. According to the 3rd example, each of an image side of the first lens element  321 , an object side of the second lens element  322 , an image side of the second lens element  322 , an object side of the third lens element  323 , an image side of the third lens element  323  and an object side of the fourth lens element  324  includes the first axial assembling structure  327 . In particular, the first axial assembling structure  327  of the image side of the first lens element  321  is corresponding to and connected to the first axial assembling structure  327  of the object side of the second lens element  322 , the first axial assembling structure  327  of the image side of the second lens element  322  is corresponding to and connected to the first axial assembling structure  327  of the object side of the third lens element  323 , and the first axial assembling structure  327  of the image side of the third lens element  323  is corresponding to and connected to the first axial assembling structure  327  of the object side of the fourth lens element  324 . Therefore, it is favorable for maintaining the coaxiality between the lens elements. 
     Furthermore, the first axial assembling structures  327  are relatively disposed on the optical axis X, and the first axial assembling structures  327  with annular can be regarded as a combination of a plurality of relatively disposed axial assembling structures. Therefore, it is favorable for decreasing the possibility of the axis offset, the relative uniformity of the width of the solid medium interval  330  can be maintained, and the effect of capillarity can be more symmetrical. 
     Each of the plastic carrier element  310  and the at least one lens element of the lens elements closest to an object side of the imaging lens element set  320  includes a second axial assembling structure  316 , and the second axial assembling structures  316  are corresponding to and connected to each other. According to the 3rd example, each of an image side of the plastic carrier element  310  and an object side of the first lens element  321  includes the second axial assembling structure  316 , and the second axial assembling structures  316  are corresponding to and connected to each other. Therefore, the coaxiality between the plastic carrier element  310  and the first lens element  321  can be provided. 
     An outer region of the at least one lens element of the lens elements is totally non-contacted with the inner surface  314  of the plastic carrier element  310 . According to the 3rd example, an outer region of the second lens element  322 , an outer region of the third lens element  323  and an outer region of the fourth lens element  324  are totally non-contacted with the inner surface  314  of the plastic carrier element  310 . Therefore, an accommodating space of the medium material  331  can be provided, and the interference during assembling can be decreased to enhance the assembling velocity. 
     An air gap  340  is further included between the lens elements and the inner surface  314 , and the air gap  340  along a radial direction is closer to the optical axis X than the solid medium interval  330  to the optical axis X. Therefore, it is favorable for stably controlling the coating technique to avoid the medium material  331  overflowing to an optical area of the imaging lens element set  320 . 
     In  FIG. 3B , the at least one lens element of the lens elements includes an annular groove structure  329 , wherein at least one of the solid medium interval  330  and the air gap  340  is interconnected to the annular groove structure  329 . According to the 3rd example, the third lens element  323  includes the annular groove structures  329 . Therefore, the anti-overflow mechanism can be provided, and the anti-overflow mechanism can also be an air-venting space during assembling. 
     The solid medium interval  330  is made of an opaque material. Therefore, it is favorable for preventing the non-imaging light is transmitted in the solid medium interval  330 . 
       FIG. 3D  is a plane view of the plastic carrier element  310  and the second lens element  322  according to the 3rd example in  FIG. 3A . In  FIG. 3D , a range of an outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  330  is larger than a range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  330  at a plane vertical to the optical axis X. According to the 3rd example, a range of an outer periphery of the second lens element  322  directly contacted with the solid medium interval  330  is larger than a range of the outer periphery of the second lens element  322  non-contacted with the solid medium interval  330 . 
     In  FIG. 3C , the plastic carrier element  310  further includes a glue-escaping groove  315 , and the glue-escaping groove  315  can be annular or strip-shaped, but is not limited thereto. In detail, the medium material  331  can be accumulated in the glue-escaping groove  315 . After assembling the imaging lens element set  320 , the medium material  331  extends to other area of the inner surface  314  by capillarity, and the medium material  331  is formed the solid medium interval  330  after solidifying. Therefore, it is favorable for controlling the medium material  331  coated on the ideal coating range and preventing the overflow of the medium material  331 . 
     The solid medium interval  330  is a closed full ring shape, and the solid medium interval  330  surrounds the imaging lens element set  320 . In detail, the medium material  331  is evenly disposed on the outer periphery of the imaging lens element set  320 . Therefore, the deformation between elements is not easily formed after the medium material  331  solidifying to form the solid medium interval  330 . 
     In  FIGS. 3A, 3B and 3D , according to the 3rd example, when an angle between the solid medium interval  330  at the plane vertical to the optical axis X and the optical axis X is θm, the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  330  is θm′, a sum of the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  330  and the range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  330  is et (according to the 3rd example, the lens element is the second lens element  322 ), an angle between each of the first axial assembling structures  327  at the plane vertical to the optical axis X and the optical axis X is θa, a total length of the solid medium interval  330  along the optical axis X is L, a total length of the imaging lens element set  320  along the optical axis X is TD, and a space width of the solid medium interval  330  between the lens elements and the inner surface  314  is d (according to the 3rd example, the lens element is the first lens element  321 ), the following conditions of the Table 3 are satisfied. 
     
       
         
           
               
             
               
                 TABLE 3 
               
               
                   
               
               
                 3rd example 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 θm (degree) 
                 360 
                 L (mm) 
                 1.582 
               
               
                   
                 θm′ (degree) 
                 360 
                 TD (mm) 
                 3.14 
               
               
                   
                 θt (degree) 
                 360 
                 L/TD 
                 0.50 
               
               
                   
                 θm′/θt 
                 1 
                 d (mm) 
                 0.02 
               
               
                   
                 θa (degree) 
                 360 
               
               
                   
                   
               
            
           
         
       
     
     Furthermore, the angle between the solid medium interval  330  at the plane vertical to the optical axis X and the optical axis X is 360 degrees. 
     4th Example 
       FIG. 4A  is an exploded view of an imaging lens assembly  40  according to the 4th example of the present disclosure.  FIG. 4B  is an assembling schematic view of the imaging lens assembly  40  according to the 4th example in  FIG. 4A .  FIG. 4D  is a partial cross-sectional view of the imaging lens assembly  40  according to the 4th example in  FIG. 4A . In  FIGS. 4A, 4B, 4D , the imaging lens assembly  40  has an optical axis X, and includes a plastic carrier element  410  and an imaging lens element set  420 . The imaging lens element set  420  is disposed in the plastic carrier element  410 . 
     In detail, the plastic carrier element  410  includes an object-side surface  411 , an image-side surface  412 , an outer surface  413  and an inner surface  414 , wherein the object-side surface  411  includes an object-side opening (its reference numeral is omitted), the image-side surface  412  includes an image-side opening (its reference numeral is omitted), and the inner surface  414  is connected to the object-side opening and the image-side opening. Furthermore, the plastic carrier element  410  can be a plastic lens barrel or a single member, which is integrally formed of the plastic lens barrel and a carrier element by injection molding. 
     The imaging lens element set  420  includes at least three lens elements. In detail, according to the 4th example, the imaging lens element set  420 , in order from an object side to an image side, includes a first lens element  421 , a first light blocking sheet, a second lens element  422 , a third lens element  423 , a second light blocking sheet, a fourth lens element  424 , a third light blocking sheet, a first spacer, a fourth light blocking sheet, a fifth lens element  425  and a retainer, wherein optical features such as structures, surface shapes and so on of the first lens element  421 , the second lens element  422 , the third lens element  423 , the fourth lens element  424  and the fifth lens element  425  can be disposed according to different imaging demand. Further, the optical features are not important to the present disclosure, and the first light blocking sheet to the fourth light blocking sheet, the first spacer and the retainer are not emphases of the present disclosure, so their reference numerals are omitted. 
       FIG. 4C  is a partial enlarged view of the imaging lens assembly  40  according to the 4th example in  FIG. 4B . In  FIGS. 4A and 4C , a solid medium interval  430  is maintained between two adjacent lens elements of the at least three lens elements and the inner surface  414 , wherein the solid medium interval  430  is directly contacted with the adjacent lens elements and the inner surface  414 . According to the 4th example, the solid medium interval  430  is maintained between the first lens element  421  and the inner surface  414 , the second lens element  422  and the inner surface  414 , the third lens element  423  and the inner surface  414 , the fourth lens element  424  and the inner surface  414 , and the fifth lens element  425  and the inner surface  414 , but is not limited thereto. In detail, the solid medium interval  430  includes a medium material (its reference numeral is omitted), and the medium material is disposed on the inner surface  414  or the imaging lens element set  420 , wherein the medium material can be a thermosetting adhesive, a photocuring adhesive, a light-absorbing layer or a black coating material, but is not limited thereto. Therefore, it is favorable for enhancing the efficiency of blocking the non-imaging light. 
     Each of at least two adjacent lens elements of the lens elements includes a first axial assembling structure  427 , and the first axial assembling structures  427  are corresponding to and connected to each other. According to the 4th example, each of an image side of the first lens element  421 , an object side of the second lens element  422 , an image side of the second lens element  422 , an object side of the third lens element  423 , an image side of the third lens element  423  and an object side of the fourth lens element  424  includes the first axial assembling structure  427 . In particular, the first axial assembling structure  427  of the image side of the first lens element  421  is corresponding to and connected to the first axial assembling structure  427  of the object side of the second lens element  422 , the first axial assembling structure  427  of the image side of the second lens element  422  is corresponding to and connected to the first axial assembling structure  427  of the object side of the third lens element  423 , and the first axial assembling structure  427  of the image side of the third lens element  423  is corresponding to and connected to the first axial assembling structure  427  of the object side of the fourth lens element  424 . Therefore, it is favorable for maintaining the coaxiality between the lens elements. 
     Furthermore, the first axial assembling structures  427  are relatively disposed on the optical axis X, and the first axial assembling structures  427  with annular can be regarded as a combination of a plurality of relatively disposed axial assembling structures. Therefore, it is favorable for decreasing the possibility of the axis offset, the relative uniformity of the width of the solid medium interval  430  can be maintained, and the effect of capillarity can be more symmetrical. 
     In  FIGS. 4A and 4B , a cement material  450  is disposed between the lens elements, and the lens elements are cemented to each other to form a cemented lens group, wherein the first axial assembling structure  427  of each of the lens elements surrounds the cement material  450 . According to the 4th example, the cement material  450  is disposed between the second lens element  422  and the third lens element  423 , and the second lens element  422  and the third lens element  423  are cemented to each other to form the cemented lens group. Furthermore, the second lens element  422  and the third lens element  423  are cemented to each other via the cement material  450 , and the cement material  450  has the optical tortuosity. Therefore, it is favorable for enhancing the stability and the coaxiality between the lens elements, and the optical tortuosity can be provided to promote the optical image quality. 
     An outer region of the at least one lens element of the lens elements is totally non-contacted with the inner surface  414  of the plastic carrier element  410 . According to the 4th example, an outer region of the second lens element  422 , an outer region of the third lens element  423 , an outer region of the fourth lens element  424  and an outer region of the fifth lens element  425  are totally non-contacted with the inner surface  414  of the plastic carrier element  410 . Therefore, an accommodating space of the medium material can be provided, and the interference during assembling can be decreased to enhance the assembling velocity. 
     An air gap  440  is further included between the lens elements and the inner surface  414 , and the air gap  440  along a radial direction is closer to the optical axis X than the solid medium interval  430  to the optical axis X. Therefore, it is favorable for stably controlling the coating technique to avoid the medium material overflowing to an optical area of the imaging lens element set  420 . 
     The solid medium interval  430  is made of an opaque material. Therefore, it is favorable for preventing the non-imaging light is transmitted in the solid medium interval  430 . 
       FIG. 4E  is a plane view of the plastic carrier element  410  and the second lens element  422  according to the 4th example in  FIG. 4D . In  FIG. 4E , a range of an outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  430  is larger than a range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  430  at a plane vertical to the optical axis X. According to the 4th example, a range of an outer periphery of the second lens element  422  directly contacted with the solid medium interval  430  is larger than a range of the outer periphery of the second lens element  422  non-contacted with the solid medium interval  430 . Moreover, when an amount of the medium material is too little during the manufacturing process, a portion of the outer periphery of the lens elements may be non-contacted with the medium material. However, in reality, the medium material is disposed on the outer periphery of the lens elements by capillarity, and a coating range of the medium material can be kept. 
       FIG. 4F  is a plane view of the plastic carrier element  410  according to the 4th example in  FIG. 4A . In  FIGS. 4A, 4E and 4F , the plastic carrier element  410  further includes a glue-escaping groove  415 , and the glue-escaping groove  415  can be annular or strip-shaped, but is not limited thereto. In detail, the medium material of the solid medium interval  430  is originally liquid, and the medium material can be accumulated in the glue-escaping groove  415 . After assembling the imaging lens element set  420 , the medium material extends to other area of the inner surface  414  by capillarity, and the medium material is formed the solid medium interval  430  after solidifying. Therefore, it is favorable for controlling the medium material coated on the ideal coating range and preventing the overflow of the medium material. 
     In  FIG. 4A , the solid medium interval  430  is a closed full ring shape, and the solid medium interval  430  surrounds the imaging lens element set  420 . In detail, the medium material is evenly disposed on the outer periphery of the imaging lens element set  420 . Therefore, the deformation between elements is not easily formed after the medium material solidifying to form the solid medium interval  430 . 
       FIG. 4G  is a schematic view of parameters according to the 4th example in  FIG. 4A . In  FIGS. 4E and 4G , according to the 4th example, when an angle between the solid medium interval  430  at the plane vertical to the optical axis X and the optical axis X is θm, the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  430  is θm′, a sum of the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  430  and the range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  430  is et (according to the 4th example, the lens element is the second lens element  422 ), an angle between each of the first axial assembling structures  427  at the plane vertical to the optical axis X and the optical axis X is θa, a total length of the solid medium interval  430  along the optical axis X is L, a total length of the imaging lens element set  420  along the optical axis X is TD, and a space width of the solid medium interval  430  between the lens elements and the inner surface  414  is d (according to the 4th example, the lens element is the second lens element  422 ), the following conditions of the Table 4 are satisfied. 
     
       
         
           
               
             
               
                 TABLE 4 
               
               
                   
               
               
                 4th example 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                 θm (upper portion) (degree) 
                 220 
                 θa (degree) 
                 360 
               
               
                 θm (lower portion) (degree) 
                 105 
                 L (mm) 
                 2.653 
               
               
                 θm′ (degree) 
                 325 
                 TD (mm) 
                 2.682 
               
               
                 θt (degree) 
                 360 
                 L/TD 
                 0.99 
               
               
                 θm′/θt 
                 0.90 
                 d (mm) 
                 0.01 
               
               
                   
               
            
           
         
       
     
     Furthermore, each of the angles between the solid medium interval  430  at the plane vertical to the optical axis X and the optical axis X is 220 degrees and 105 degrees. 
     5th Example 
       FIG. 5A  is an exploded view of an imaging lens assembly  50  according to the 5th example of the present disclosure.  FIG. 5B  is an assembling schematic view of the imaging lens assembly  50  according to the 5th example in  FIG. 5A .  FIG. 5D  is a partial cross-sectional view of the imaging lens assembly  50  according to the 5th example in  FIG. 5A . In  FIGS. 5A, 5B, 5D , the imaging lens assembly  50  has an optical axis X, and includes a plastic carrier element  510  and an imaging lens element set  520 . The imaging lens element set  520  is disposed in the plastic carrier element  510 . 
     In detail, the plastic carrier element  510  includes an object-side surface  511 , an image-side surface  512 , an outer surface  513  and an inner surface  514 , wherein the object-side surface  511  includes an object-side opening (its reference numeral is omitted), the image-side surface  512  includes an image-side opening (its reference numeral is omitted), and the inner surface  514  is connected to the object-side opening and the image-side opening. Furthermore, the plastic carrier element  510  can be a plastic lens barrel or a single member, which is integrally formed of the plastic lens barrel and a carrier element by injection molding. 
     The imaging lens element set  520  includes at least three lens elements. In detail, according to the 5th example, the imaging lens element set  520 , in order from an object side to an image side, includes a first lens element  521 , a first light blocking sheet, a second lens element  522 , a second light blocking sheet, a third lens element  523 , a third light blocking sheet, a fourth lens element  524 , a fourth light blocking sheet, a first spacer, a fifth light blocking sheet, a fifth lens element  525  and a retainer, wherein optical features such as structures, surface shapes and so on of the first lens element  521 , the second lens element  522 , the third lens element  523 , the fourth lens element  524  and the fifth lens element  525  can be disposed according to different imaging demand. Further, the optical features are not important to the present disclosure, and the first light blocking sheet to the fifth light blocking sheet, the first spacer and the retainer are not emphases of the present disclosure, so their reference numerals are omitted. 
       FIG. 5C  is a partial enlarged view of the imaging lens assembly  50  according to the 5th example in  FIG. 5B . In  FIGS. 5A and 5C , a solid medium interval  530  is maintained between two adjacent lens elements of the at least three lens elements and the inner surface  514 , wherein the solid medium interval  530  is directly contacted with the adjacent lens elements and the inner surface  514 . According to the 5th example, the solid medium interval  530  is maintained between the first lens element  521  and the inner surface  514 , the second lens element  522  and the inner surface  514 , the third lens element  523  and the inner surface  514 , and the fourth lens element  524  and the inner surface  514 , but is not limited thereto. In detail, the solid medium interval  530  includes a medium material (its reference numeral is omitted), and the medium material is disposed on the inner surface  514  or the imaging lens element set  520 , wherein the medium material can be a thermosetting adhesive, a photocuring adhesive, a light-absorbing layer or a black coating material, but is not limited thereto. Therefore, it is favorable for enhancing the efficiency of blocking the non-imaging light. 
     Each of at least two adjacent lens elements of the lens elements includes a first axial assembling structure  527 , and the first axial assembling structures  527  are corresponding to and connected to each other. According to the 5th example, each of an image side of the first lens element  521 , an object side of the second lens element  522 , an image side of the second lens element  522 , an object side of the third lens element  523 , an image side of the third lens element  523  and an object side of the fourth lens element  524  includes the first axial assembling structure  527 . In particular, the first axial assembling structure  527  of the image side of the first lens element  521  is corresponding to and connected to the first axial assembling structure  527  of the object side of the second lens element  522 , the first axial assembling structure  527  of the image side of the second lens element  522  is corresponding to and connected to the first axial assembling structure  527  of the object side of the third lens element  523 , and the first axial assembling structure  527  of the image side of the third lens element  523  is corresponding to and connected to the first axial assembling structure  527  of the object side of the fourth lens element  524 . Therefore, it is favorable for maintaining the coaxiality between the lens elements. 
     Furthermore, the first axial assembling structures  527  are relatively disposed on the optical axis X, and the first axial assembling structures  527  with annular can be regarded as a combination of a plurality of relatively disposed axial assembling structures. Therefore, it is favorable for decreasing the possibility of the axis offset, the relative uniformity of the width of the solid medium interval  530  can be maintained, and the effect of capillarity can be more symmetrical. 
     Each of the plastic carrier element  510  and the at least one lens element of the lens elements closest to an object side of the imaging lens element set  520  includes a second axial assembling structure  516 , and the second axial assembling structures  516  are corresponding to and connected to each other. According to the 5th example, each of an image side of the plastic carrier element  510  and an object side of the first lens element  521  includes the second axial assembling structure  516 , and the second axial assembling structures  516  are corresponding to and connected to each other. Therefore, the coaxiality between the plastic carrier element  510  and the first lens element  521  can be provided. 
       FIG. 5E  is a plane view of the plastic carrier element  510  and the second lens element  522  according to the 5th example in  FIG. 5D .  FIG. 5F  is a plane view of the second lens element  522  according to the 5th example in  FIG. 5A . In  FIGS. 5A, 5C, 5E and 5F , the at least one lens element of the lens elements includes a plurality of protruding structures  528 . According to the 5th example, the at least one element including the protruding structures  528  is the second lens element  522 . The protruding structures  528  protrude along a direction vertical to the optical axis X and are regularly arranged around an outer periphery of the second lens element  522 , and the solid medium interval  530  are directly contacted with the protruding structures  528 . In detail, the medium material can be pulled along the inner surface  514  via the protruding structures  528  during assembling the lens elements, and the medium material can be more entirely coated between the plastic carrier element  510  and the lens elements. Therefore, it is favorable for more ideally developing capillarity. 
     An outer region of the at least one lens element of the lens elements is totally non-contacted with the inner surface  514  of the plastic carrier element  510 . According to the 5th example, an outer region of the second lens element  522 , an outer region of the third lens element  523  and an outer region of the fourth lens element  524  are totally non-contacted with the inner surface  514  of the plastic carrier element  510 . Therefore, an accommodating space of the medium material can be provided, and the interference during assembling can be decreased to enhance the assembling velocity. 
     An air gap  540  is further included between the lens elements and the inner surface  514 , and the air gap  540  along a radial direction is closer to the optical axis X than the solid medium interval  530  to the optical axis X. Therefore, it is favorable for stably controlling the coating technique to avoid the medium material overflowing to an optical area of the imaging lens element set  520 . 
     In  FIGS. 5A and 5C , the at least one lens element of the lens elements includes an annular groove structure  529 , wherein at least one of the solid medium interval  530  and the air gap  540  is interconnected to the annular groove structure  529 . According to the 5th example, the second lens element  522  includes the annular groove structures  529 . Therefore, the anti-overflow mechanism can be provided, and the anti-overflow mechanism can also be an air-venting space during assembling. 
     The solid medium interval  530  is made of an opaque material. Therefore, it is favorable for preventing the non-imaging light is transmitted in the solid medium interval  530 . 
     In  FIG. 5E , a range of an outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  530  is larger than a range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  530  at a plane vertical to the optical axis X. According to the 5th example, a range of an outer periphery of the second lens element  522  directly contacted with the solid medium interval  530  is larger than a range of the outer periphery of the second lens element  522  non-contacted with the solid medium interval  530 . 
     In  FIG. 5A , the solid medium interval  530  is a closed full ring shape, and the solid medium interval  530  surrounds the imaging lens element set  520 . In detail, the medium material is evenly disposed on the outer periphery of the imaging lens element set  520 . Therefore, the deformation between elements is not easily formed after the medium material solidifying to form the solid medium interval  530 . 
     In  FIGS. 5B, 5C, 5E and 5F , according to the 5th example, when an angle between the solid medium interval  530  at the plane vertical to the optical axis X and the optical axis X is θm, the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  530  is θm′, a sum of the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  530  and the range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  530  is et (according to the 5th example, the lens element is the second lens element  522 ), an angle between each of the first axial assembling structures  527  at the plane vertical to the optical axis X and the optical axis X is ea, a total length of the solid medium interval  530  along the optical axis X is L, a total length of the imaging lens element set  520  along the optical axis X is TD, and a space width of the solid medium interval  530  between the lens elements and the inner surface  514  is d (according to the 5th example, the lens element is the first lens element  521 ), the following conditions of the Table 5 are satisfied. 
     
       
         
           
               
             
               
                 TABLE 5 
               
               
                   
               
               
                 5th example 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 θm (degree) 
                 325 
                 L (mm) 
                 1.785 
               
               
                   
                 θm′ (degree) 
                 325 
                 TD (mm) 
                 2.682 
               
               
                   
                 θt (degree) 
                 360 
                 L/TD 
                 0.67 
               
               
                   
                 θm′/θt 
                 0.90 
                 d (mm) 
                 0.01 
               
               
                   
                 θa (degree) 
                 360 
               
               
                   
                   
               
            
           
         
       
     
     Furthermore, the angle between the solid medium interval  530  at the plane vertical to the optical axis X and the optical axis X is 325 degrees. 
     6th Example 
       FIG. 6A  is an exploded view of an electronic device according to the 6th example of the present disclosure. In  FIG. 6A , the electronic device (its reference numeral is omitted) includes a cover  61 , an upper spring leaf  62 , a plurality of magnets  63 , an imaging lens assembly  60 , a lower spring leaf  64  and a holder  65 , wherein the cover  61  is coupled with the holder  65 . 
       FIG. 6B  is a schematic view of an imaging lens assembly  60  according to the 6th example in  FIG. 6A . In  FIGS. 6A and 6B , the imaging lens assembly  60  has an optical axis X, and includes a plastic carrier element  610  and an imaging lens element set  620 . The imaging lens element set  620  is disposed in the plastic carrier element  610 . According to the 6th example, the plastic carrier element  610  is a single member, which is integrally formed of the plastic lens barrel and a carrier element by injection molding, and the plastic carrier element  610  is disposed in the cover  61 , but is not limited thereto. 
     In  FIG. 6B , the plastic carrier element  610  includes an object-side surface  611 , an image-side surface  612 , an outer surface  613  and an inner surface  614 , wherein the object-side surface  611  includes an object-side opening (its reference numeral is omitted), the image-side surface  612  includes an image-side opening (its reference numeral is omitted), and the inner surface  614  is connected to the object-side opening and the image-side opening. Furthermore, a driving apparatus  617  is disposed on the outer surface  613  of the plastic carrier element  610 , and the driving apparatus  617  is for driving the imaging lens assembly  60  to move along a direction parallel to the optical axis X, wherein the driving apparatus  617  can be a coil element or a magnet element. According to the 6th example, the driving apparatus  617  is the coil element, but is not limited thereto. Therefore, the possibility of the autofocus of the imaging lens assembly  60  can be provided. 
     The plastic carrier element  610  can be assembled with one of the magnet  63  and the driving apparatus  617 . The holder  65  has a central opening (its reference numeral is omitted), and the cover  61  has an opening (its reference numeral is omitted), wherein the opening of the cover  61  is corresponding to the central opening of the holder  65 . 
     The magnet  63  has a surface facing the driving apparatus  617 . The upper spring leaf  62  is disposed between the magnet  63  and the cover  61 , the lower spring leaf  64  is disposed between the imaging lens assembly  60  and the holder  65 , and both of the upper spring leaf  62  and the lower spring leaf  64  are disposed along the optical axis X. Each of the upper spring leaf  62  and the lower spring leaf  64  is connected to the plastic carrier element  610 , and both of the upper spring leaf  62  and the lower spring leaf  64  are for supporting the plastic carrier element  610  to move along the direction parallel to the optical axis X. Therefore, it is favorable for achieving the space disposition of the compact size, and the stability of autofocus can be maintained. 
     In  FIG. 6B , the imaging lens element set  620  includes at least three lens elements. In detail, according to the 6th example, the imaging lens element set  620 , in order from an object side to an image side, includes a first lens element  621 , a first light blocking sheet, a second lens element  622 , a second light blocking sheet, a third lens element  623 , a third light blocking sheet, a fourth lens element  624 , a first spacer, a fourth light blocking sheet, a fifth lens element  625 , a fifth light blocking sheet and a sixth lens element  626 , wherein optical features such as structures, surface shapes and so on of the first lens element  621 , the second lens element  622 , the third lens element  623 , the fourth lens element  624 , the fifth lens element  625  and the sixth lens element  626  can be disposed according to different imaging demand. Further, the optical features are not important to the present disclosure, and the first light blocking sheet to the fifth light blocking sheet and the first spacer are not emphases of the present disclosure, so their reference numerals are omitted. 
       FIG. 6C  is a partial enlarged view of the imaging lens assembly  60  according to the 6th example in  FIG. 6B . In  FIG. 6C , a solid medium interval  630  is maintained between two adjacent lens elements of the at least three lens elements and the inner surface  614 , wherein the solid medium interval  630  is directly contacted with the adjacent lens elements and the inner surface  614 . According to the 6th example, the solid medium interval  630  is maintained between the first lens element  621  and the inner surface  614 , the second lens element  622  and the inner surface  614 , the third lens element  623  and the inner surface  614 , the fourth lens element  624  and the inner surface  614 , the fifth lens element  625  and the inner surface  614 , and the sixth lens element  626  and the inner surface  614 , but is not limited thereto. In detail, the solid medium interval  630  includes a medium material (its reference numeral is omitted), and the medium material is disposed on the inner surface  614  or the imaging lens element set  620 , wherein the medium material can be a thermosetting adhesive, a photocuring adhesive, a light-absorbing layer or a black coating material, but is not limited thereto. Therefore, it is favorable for enhancing the efficiency of blocking the non-imaging light. 
     Each of at least two adjacent lens elements of the lens elements includes a first axial assembling structure  627 , and the first axial assembling structures  627  are corresponding to and connected to each other. According to the 6th example, each of an image side of the first lens element  621 , an object side of the second lens element  622 , an image side of the second lens element  622 , an object side of the third lens element  623 , an image side of the third lens element  623  and an object side of the fourth lens element  624  includes the first axial assembling structure  627 . In particular, the first axial assembling structure  627  of the image side of the first lens element  621  is corresponding to and connected to the first axial assembling structure  627  of the object side of the second lens element  622 , the first axial assembling structure  627  of the image side of the second lens element  622  is corresponding to and connected to the first axial assembling structure  627  of the object side of the third lens element  623 , and the first axial assembling structure  627  of the image side of the third lens element  623  is corresponding to and connected to the first axial assembling structure  627  of the object side of the fourth lens element  624 . Therefore, it is favorable for maintaining the coaxiality between the lens elements. 
     Furthermore, the first axial assembling structures  627  are relatively disposed on the optical axis X, and the first axial assembling structures  627  with annular can be regarded as a combination of a plurality of relatively disposed axial assembling structures. Therefore, it is favorable for decreasing the possibility of the axis offset, the relative uniformity of the width of the solid medium interval  630  can be maintained, and the effect of capillarity can be more symmetrical. 
     An outer region of the at least one lens element of the lens elements is totally non-contacted with the inner surface  614  of the plastic carrier element  610 . According to the 6th example, an outer region of the second lens element  622 , an outer region of the third lens element  623  and an outer region of the fourth lens element  624  are totally non-contacted with the inner surface  614  of the plastic carrier element  610 . Therefore, an accommodating space of the medium material can be provided, and the interference during assembling can be decreased to enhance the assembling velocity. 
     An air gap  640  is further included between the lens elements and the inner surface  614 , and the air gap  640  along a radial direction is closer to the optical axis X than the solid medium interval  630  to the optical axis X. Therefore, it is favorable for stably controlling the coating technique to avoid the medium material overflowing to an optical area of the imaging lens element set  620 . 
     The solid medium interval  630  is made of an opaque material. Therefore, it is favorable for preventing the non-imaging light is transmitted in the solid medium interval  630 . 
       FIG. 6D  is a plane view of the plastic carrier element  610  and the second lens element  622  according to the 6th example in  FIG. 6A . In  FIG. 6D , a range of an outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  630  is larger than a range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  630  at a plane vertical to the optical axis X. According to the 6th example, a range of an outer periphery of the second lens element  622  directly contacted with the solid medium interval  630  is larger than a range of the outer periphery of the second lens element  622  non-contacted with the solid medium interval  630 . 
     The solid medium interval  630  is a closed full ring shape, and the solid medium interval  630  surrounds the imaging lens element set  620 . In detail, the medium material is evenly disposed on the outer periphery of the imaging lens element set  620 . Therefore, the deformation between elements is not easily formed after the medium material solidifying to form the solid medium interval  630 . 
     In  FIGS. 6B, 6C and 6D , according to the 6th example, when an angle between the solid medium interval  630  at the plane vertical to the optical axis X and the optical axis X is θm, the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  630  is θm′, a sum of the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  630  and the range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  630  is et (according to the 6th example, the lens element is the second lens element  622 ), an angle between each of the first axial assembling structures  627  at the plane vertical to the optical axis X and the optical axis X is θa, a total length of the solid medium interval  630  along the optical axis X is L, a total length of the imaging lens element set  620  along the optical axis X is TD, and a space width of the solid medium interval  630  between the lens elements and the inner surface  614  is d (according to the 6th example, the lens elements are the first lens element  621  and the sixth lens element  626 ), the following conditions of the Table 6 are satisfied. 
     
       
         
           
               
             
               
                 TABLE 6 
               
               
                   
               
               
                 6th example 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                 θm (degree) 
                 360 
                 L (mm) 
                 2.877 
               
               
                 θm′ (degree) 
                 360 
                 TD (mm) 
                 2.92 
               
               
                 θt (degree) 
                 360 
                 L/TD 
                 0.99 
               
               
                 θm′/θt 
                 1 
                 d (mm) (the first lens element) 
                 0.015 
               
               
                 θa (degree) 
                 360 
                 d (mm) (the sixth lens element) 
                 0.07 
               
               
                   
               
            
           
         
       
     
     Furthermore, the angle between the solid medium interval  630  at the plane vertical to the optical axis X and the optical axis X is 360 degrees. 
     7th Example 
       FIG. 7A  is an exploded view of an imaging lens assembly  70  according to the 7th example of the present disclosure.  FIG. 7B  is an assembling schematic view of the imaging lens assembly  70  according to the 7th example in  FIG. 7A .  FIG. 7C  is a partial cross-sectional view of the imaging lens assembly  70  according to the 7th example in  FIG. 7A . In  FIGS. 7A to 7C , the imaging lens assembly  70  has an optical axis X, and includes a plastic carrier element  710  and an imaging lens element set  720 . The imaging lens element set  720  is disposed in the plastic carrier element  710 . 
     In detail, the plastic carrier element  710  includes an object-side surface  711 , an image-side surface  712 , an outer surface  713  and an inner surface  714 , wherein the object-side surface  711  includes an object-side opening (its reference numeral is omitted), the image-side surface  712  includes an image-side opening (its reference numeral is omitted), and the inner surface  714  is connected to the object-side opening and the image-side opening. Furthermore, the plastic carrier element  710  can be a plastic lens barrel or a single member, which is integrally formed of the plastic lens barrel and a carrier element by injection molding. 
     The imaging lens element set  720  includes at least three lens elements. In detail, according to the 7th example, the imaging lens element set  720 , in order from an object side to an image side, includes a first lens element  721 , a first light blocking sheet, a second lens element  722  and a third lens element  723 , wherein optical features such as structures, surface shapes and so on of the first lens element  721 , the second lens element  722  and the third lens element  723  can be disposed according to different imaging demand. Further, the optical features are not important to the present disclosure, and the first light blocking sheet is not emphases of the present disclosure, so its reference numeral is omitted. 
     In  FIG. 7A , a solid medium interval  730  is maintained between two adjacent lens elements of the at least three lens elements and the inner surface  714 , wherein the solid medium interval  730  is directly contacted with the adjacent lens elements and the inner surface  714 . According to the 7th example, the solid medium interval  730  is maintained between the first lens element  721  and the inner surface  714 , the second lens element  722  and the inner surface  714 , and the third lens element  723  and the inner surface  714 , but is not limited thereto. In detail, the solid medium interval  730  includes a medium material (its reference numeral is omitted), and the medium material is disposed on the inner surface  714  or the imaging lens element set  720 , wherein the medium material can be a thermosetting adhesive, a photocuring adhesive, a light-absorbing layer or a black coating material, but is not limited thereto. Therefore, it is favorable for enhancing the efficiency of blocking the non-imaging light. 
     Each of at least two adjacent lens elements of the lens elements includes a first axial assembling structure  727 , and the first axial assembling structures  727  are corresponding to and connected to each other. According to the 7th example, each of an image side of the first lens element  721  and an object side of the second lens element  722  includes the first axial assembling structure  727 . In particular, the first axial assembling structure  727  of the image side of the first lens element  721  is corresponding to and connected to the first axial assembling structure  727  of the object side of the second lens element  722 , but is not limited thereto. Therefore, it is favorable for maintaining the coaxiality between the lens elements. 
     Furthermore, the first axial assembling structures  727  are relatively disposed on the optical axis X, and the first axial assembling structures  727  with annular can be regarded as a combination of a plurality of relatively disposed axial assembling structures. Therefore, it is favorable for decreasing the possibility of the axis offset, the relative uniformity of the width of the solid medium interval  730  can be maintained, and the effect of capillarity can be more symmetrical. 
     An outer region of the at least one lens element of the lens elements is totally non-contacted with the inner surface  714  of the plastic carrier element  710 . According to the 7th example, an outer region of the first lens element  721 , an outer region of the second lens element  722  and an outer region of the third lens element  723  are totally non-contacted with the inner surface  714  of the plastic carrier element  710 . Therefore, an accommodating space of the medium material can be provided, and the interference during assembling can be decreased to enhance the assembling velocity. 
     The solid medium interval  730  is made of an opaque material. Therefore, it is favorable for preventing the non-imaging light is transmitted in the solid medium interval  730 . 
       FIG. 7D  is a plane view of the plastic carrier element  710  and the first lens element  721  according to the 7th example in  FIG. 7C . In  FIG. 7D , a range of an outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  730  is larger than a range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  730  at a plane vertical to the optical axis X. According to the 7th example, a range of an outer periphery of the first lens element  721  directly contacted with the solid medium interval  730  is larger than a range of the outer periphery of the first lens element  721  non-contacted with the solid medium interval  730 . 
     In  FIG. 7A , the solid medium interval  730  is a closed full ring shape, and the solid medium interval  730  surrounds the imaging lens element set  720 . In detail, the medium material is evenly disposed on the outer periphery of the imaging lens element set  720 . Therefore, the deformation between elements is not easily formed after the medium material solidifying to form the solid medium interval  730 . 
       FIG. 7E  is a plane view of the first lens element  721  according to the 7th example in  FIG. 7A .  FIG. 7F  is a schematic view of parameters according to the 7th example in  FIG. 7A . In  FIGS. 7D to 7F , according to the 7th example, when an angle between the solid medium interval  730  at the plane vertical to the optical axis X and the optical axis X is θm, the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  730  is θm′, a sum of the range of the outer periphery of the at least one lens element of the lens elements directly contacted with the solid medium interval  730  and the range of the outer periphery of the at least one lens element of the lens elements non-contacted with the solid medium interval  730  is et (according to the 7th example, the lens element is the first lens element  721 ), an angle between each of the first axial assembling structures  727  at the plane vertical to the optical axis X and the optical axis X is ea, a total length of the solid medium interval  730  along the optical axis X is L, a total length of the imaging lens element set  720  along the optical axis X is TD, and a space width of the solid medium interval  730  between the lens elements and the inner surface  714  is d (according to the 7th example, the lens element is the first lens element  721 ), the following conditions of the Table 7 are satisfied. 
     
       
         
           
               
             
               
                 TABLE 7 
               
               
                   
               
               
                 7th example 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 θm (degree) 
                 114 
                 L (mm) 
                 5.134 
               
               
                   
                 θm′ (degree) 
                 228 
                 TD (mm) 
                 5.066 
               
               
                   
                 θt (degree) 
                 360 
                 L/TD 
                 1.01 
               
               
                   
                 θm′/θt 
                 0.63 
                 d (mm) 
                 0.062 
               
               
                   
                 θa (degree) 
                 74 
               
               
                   
                   
               
            
           
         
       
     
     Furthermore, the angle between the solid medium interval  730  at the plane vertical to the optical axis X and the optical axis X is 114 degrees. 
     8th Example 
       FIG. 8A  is a schematic view of an electronic device  80  according to the 8th example of the present disclosure.  FIG. 8B  is a block diagram of the electronic device  80  according to the 8th example in  FIG. 8A . In  FIGS. 8A and 8B , the electronic device  80  is a smart phone, and includes an imaging lens assembly  81 , a user interface  83  and an image sensor  82 . The imaging lens assembly  81  according to the 8th example is disposed on an area of side of the user interface  83 , the image sensor  82  is disposed on the image surface (not shown) of the imaging lens assembly  81 , wherein the user interface  83  can be a touch screen or a display screen, but is not limited thereto. The imaging lens assembly  81  can be one of the imaging lens assembly according to the aforementioned 1st example to the 7th example, and the imaging lens assembly  81  includes a plastic carrier element (not shown) and an imaging optical element set (not shown), wherein the imaging optical element set is disposed in the plastic carrier element, but is not limited thereto. 
     Moreover, users enter a shooting mode via the user interface  83  of the electronic device  80 . At this moment, the imaging light is gathered on the image sensor  82  via the imaging lens assembly  81 , and an electronic signal about an image is output to an image signal processor (ISP)  84 . 
     To meet a specification of a camera of the electronic device  80 , the electronic device  80  can further include an optical anti-shake mechanism  85 , which can be an optical image stabilization ( 01 S). Furthermore, the electronic device  80  can further include at least one auxiliary optical element (its reference numeral is omitted) and at least one sensing element  86 . According to the 8th example, the auxiliary optical element is a flash module  87  and a focusing assisting module  88 . The flash module  87  can be for compensating a color temperature, and the focusing assisting module  88  can be an infrared distance measurement component, a laser focus module, etc. The sensing element  86  can have functions for sensing physical momentum and kinetic energy, such as an accelerator, a gyroscope, a Hall Effect Element, to sense shaking or jitters applied by hands of the user or external environments. Accordingly, the imaging lens assembly  81  of the electronic device  80  equipped with an auto-focusing mechanism and the optical anti-shake mechanism  85  can be enhanced to achieve the superior image quality. Furthermore, the electronic device  80  according to the present disclosure can have a capturing function with multiple modes, such as taking optimized selfies, high dynamic range (HDR) under a low light condition, 4K resolution recording, etc. Furthermore, the users can visually see a captured image of the camera through the touch screen and manually operate the view finding range on the touch screen to achieve the autofocus function of what you see is what you get. 
     Furthermore, the electronic device  80  can further include, but not be limited to, a display, a control unit, a storage unit, a random access memory (RAM), a read-only memory (ROM), or the combination thereof. 
       FIG. 8C  is a schematic view of selfie scene according to the 8th example in  FIG. 8A .  FIG. 8D  is a schematic view of a captured image according to the 8th example in  FIG. 8A . In  FIGS. 8A to 8D , the imaging lens assembly  81  and the user interface  83  face towards the users. When proceeding selfie or live streaming, the users can watch a captured image and operate an interface at the same time, and the capture image as  FIG. 8D  can be obtained after shooting. Therefore, better shooting experience can be provided via the imaging lens assembly  81  of the present disclosure. 
     The foregoing description, for purpose of explanation, has been described with reference to specific examples. It is to be noted that Tables show different data of the different examples; however, the data of the different examples are obtained from experiments. The examples 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 examples with various modifications as are suited to the particular use contemplated. The examples 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.