Patent Publication Number: US-11391920-B2

Title: Camera optical lens including six lenses of +−+−+− refractive powers

Description:
TECHNICAL FIELD 
     The present disclosure relates to the field of optical lens, in particular, to a camera optical lens suitable for handheld devices, such as smart phones and digital cameras, and imaging devices, such as monitors or PC lenses. 
     BACKGROUND 
     With the emergence of smart phones in recent years, the demand for miniature camera lens is increasing day by day, but in general the photosensitive devices of camera lens are nothing more than Charge Coupled Device (CCD) or Complementary Metal-Oxide Semiconductor Sensor (CMOS sensor), and as the progress of the semiconductor manufacturing technology makes the pixel size of the photosensitive devices become smaller, plus the current development trend of electronic products towards better functions and thinner and smaller dimensions, miniature camera lens with good imaging quality therefore have become a mainstream in the market. In order to obtain better imaging quality, the lens that is traditionally equipped in mobile phone cameras adopts a three-piece or four-piece lens structure. Also, with the development of technology and the increase of the diverse demands of users, and as the pixel area of photosensitive devices is becoming smaller and smaller and the requirement of the system on the imaging quality is improving constantly, the five-piece, six-piece and seven-piece lens structure gradually appear in lens designs. There is an urgent need for ultra-thin wide-angle camera lenses which with good optical characteristics and fully corrected chromatic aberration. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a schematic diagram of a structure of a camera optical lens according to Embodiment 1 of the present disclosure. 
         FIG. 2  is a schematic diagram of a longitudinal aberration of the camera optical lens shown in  FIG. 1 . 
         FIG. 3  is a schematic diagram of a lateral color of the camera optical lens shown in  FIG. 1 . 
         FIG. 4  is a schematic diagram of a field curvature and a distortion of the camera optical lens shown in  FIG. 1 . 
         FIG. 5  is a schematic diagram of a structure of a camera optical lens according to Embodiment 2 of the present disclosure. 
         FIG. 6  is a schematic diagram of a longitudinal aberration of the camera optical lens shown in  FIG. 5 . 
         FIG. 7  is a schematic diagram of a lateral color of the camera optical lens shown in  FIG. 5 . 
         FIG. 8  is a schematic diagram of a field curvature and a distortion of the camera optical lens shown in  FIG. 5 . 
         FIG. 9  is a schematic diagram of a structure of a camera optical lens according to Embodiment 3 of the present disclosure. 
         FIG. 10  is a schematic diagram of a longitudinal aberration of the camera optical lens shown in  FIG. 9 . 
         FIG. 11  is a schematic diagram of a lateral color of the camera optical lens shown in  FIG. 9 . 
         FIG. 12  is a schematic diagram of a field curvature and a distortion of the camera optical lens shown in  FIG. 9 . 
     
    
    
     DETAILED DESCRIPTION OF EMBODIMENTS 
     To make the objects, technical solutions, and advantages of the present disclosure clearer, embodiments of the present disclosure are described in detail with reference to accompanying drawings in the following. A person of ordinary skill in the art can understand that, in the embodiments of the present disclosure, many technical details are provided to make readers better understand the present disclosure. However, even without these technical details and any changes and modifications based on the following embodiments, technical solutions required to be protected by the present disclosure can be implemented. 
     Embodiment 1 
     Referring to the accompanying drawings, the present disclosure provides a camera optical lens  10 .  FIG. 1  shows the camera optical lens  10  of Embodiment 1 of the present disclosure, the camera optical lens  10  includes six lenses. Specifically, the camera optical lens  10  includes, from an object side to an image side: an aperture S1, a first lens L1, a second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5 and a sixth lens L6. An optical element such as an optical filter GF can be arranged between the sixth lens L7 and an image surface Si. 
     The first lens L1, the second lens L2, the third lens L3, the fourth lens L4, the fifth lens L5 and the sixth lens L6 are all made of plastic material. 
     The second lens L2 has a negative refractive power, and the third lens L3 has a positive refractive power. 
     Here, a focal length of the first lens L1 is defined as f1, a focal length of the second lens L2 is defined as f2, and the camera optical lens  10  should satisfy a condition of −5.00≤f1/f2≤−1.10, which specifies a ratio of the focal length of the first lens L1 and the focal length of the second lens L2. An appropriate distribution of the refractive power leads to a better imaging quality and a lower sensitivity. Preferably, the camera optical lens  10  further satisfies a condition of −4.97≤f1/f2≤−1.10. 
     A curvature radius of an object-side surface of the second lens L2 is defined as R3, a curvature radius of an image-side surface of the second lens L2 is defined as R4, and the camera optical lens  10  further satisfies a condition of −20.00≤R3/R4≤−3.00. By controlling a shape of the second lens and within this range, a development towards ultra-thin and wide-angle lenses would facilitate correcting the problem of an on-axis chromatic aberration. Preferably, the camera optical lens  10  further satisfies a condition of −19.68≤R3/R4≤−3 0.07. 
     A total optical length from an object-side surface of the first lens L1 to the image surface Si of the camera optical lens along an optical axis is defined as TTL. 
     When the focal length f1 of the first lens L1, the focal length f2 of the second lens L2, the curvature radius R3 of the object-side surface of the second lens L2 and the curvature radius R4 of the image-side surface of the second lens L2 all satisfy the above conditions, the camera optical lens  10  has an advantage of high performance and satisfies a design requirement of low TTL. 
     In an embodiment, the object-side surface of the first lens L1 is convex in a paraxial region, an image-side surface of the first lens L1 is concave in the paraxial region, and the first lens L1 has a positive refractive power. 
     A focal length of the camera optical lens  10  is defined as f, the focal length of the first lens L1 is defined as f1, and the camera optical lens  10  should satisfy a condition of 2.01≤f1/f≤17.96, which a positive refractive power of the first lens, and specifies a ratio of the positive refractive power and the focal length f of the camera optical lens  10 . Within this range, the first lens has an appropriate positive refractive power, thereby facilitating reducing an aberration of the system while facilitating a development towards ultra-thin and wide-angle lenses. Preferably, the camera optical lens  10  further satisfies a condition of 3.22≤f1/f≤14.37. 
     A curvature radius of the object-side surface of the first lens L1 is defined as R1, a curvature radius of the image-side surface of the first lens L1 is defined as R2, and the camera optical lens  10  further satisfies a condition of −63.48≤(R1+R2)/(R1−R2)≤−3.85. This can reasonably control a shape of the first lens L1 in such a manner that the first lens L1 can effectively correct a spherical aberration of the camera optical lens. Preferably, the camera optical lens  10  further satisfies a condition of −39.67≤(R1+R2)/(R1−R2)≤−4.81. 
     An on-axis thickness of the first lens L1 is defined as d1, and the camera optical lens  10  further satisfies a condition of 0.03≤d1/TTL≤0.09. This can facilitate achieving ultra-thin lenses. Preferably, the camera optical lens  10  further satisfies a condition of 0.04≤d1/TTL≤0.07. 
     In an embodiment, the object-side surface of the second lens L2 is concave in the paraxial region, and the image-side surface of the second lens L2 is concave in the paraxial region. 
     The focal length of the camera optical lens  10  is defined as f, the focal length of the second lens L2 is defined as f2, and the camera optical lens  10  further satisfies a condition of −7.29≤f2/f≤−1.25. By controlling a negative refractive power of the second lens L2 within a reasonable range, correction of the aberration of the optical system can be facilitated. Preferably, the camera optical lens  10  further satisfies a condition of −4.55≤f2/f≤−1.56. 
     An on-axis thickness of the second lens L2 is defines as d3, and the camera optical lens  10  further satisfies a condition of 0.02≤d3/TTL≤0.07. This can facilitate achieving ultra-thin lenses. Preferably, the camera optical lens  10  further satisfies a condition of 0.04≤d3/TTL≤0.05. 
     In an embodiment, an object-side surface of the third lens L3 is convex in the paraxial region, and an image-side surface of the third lens L3 is concave in the paraxial region. 
     A focal length of the third lens L3 is defined as f3, and the camera optical lens  10  further satisfies a condition of 0.42≤f3/f≤2.84. An appropriate distribution of the refractive power leads to a better imaging quality and a lower sensitivity. Preferably, the camera optical lens  10  further satisfies a condition of 0.67≤f3/f≤2.27. 
     A curvature radius of the object-side surface of the third lens L3 is defined as R5, a curvature radius of the image-side surface of the third lens L3 is defined as R6, and the camera optical lens  10  further satisfies a condition of −8.82≤(R5+R6)/(R5−R6)≤−0.89, which effectively controls a shape of the third lens L3 and is beneficial for shaping the third lens L3 and avoids bad formation of the lens and generation of stress resulted from too large a curvature of a surface. Preferably, the camera optical lens  10  further satisfies a condition of −5.51≤(R5+R6)/(R5−R6)≤−1.11. 
     An on-axis thickness of the third lens L3 is defined as d5, and the camera optical lens  10  further satisfies a condition of 0.04≤d5/TTL≤0.20. This can facilitate achieving ultra-thin lenses. Preferably, the camera optical lens  10  further satisfies a condition of 0.06≤d5/TTL≤0.16. 
     In an embodiment, an object-side surface of the fourth lens L4 is convex in the paraxial region, an image-side surface of the fourth lens L4 is concave in the paraxial region, and the fourth lens L4 has a negative refractive power. 
     A focal length of the fourth lens L4 is defined as f4, and the camera optical lens  10  further satisfies a condition of −7.45≤f4/f≤−1.79. The appropriate distribution of refractive power makes it possible that the system has the better imaging quality and the lower sensitivity. Preferably, the camera optical lens  10  further satisfies a condition of −4.66≤f4/f≤−2.24. 
     A curvature radius of the object-side surface of the fourth lens L4 is defined as R7, a curvature radius of the image-side surface of the fourth lens L4 is defined as R8, and the camera optical lens  10  further satisfies a condition of 1.38≤(R7+R8)/(R7−R8)≤6.91, which specifies a shape of the fourth lens L4. Within this range, a development towards ultra-thin and wide-angle lens would facilitate correcting a problem like an off-axis aberration. Preferably, the camera optical lens  10  further satisfies a condition of 2.21≤(R7+R8)/(R7−R8)≤5.53. 
     An on-axis thickness of the fourth lens L4 is defined as d7, and the camera optical lens  10  further satisfies a condition of 0.02≤d7/TTL≤0.08. This can facilitate achieving ultra-thin lenses. Preferably, the camera optical lens  10  further satisfies a condition of 0.04≤d7/TTL≤0.06. 
     In an embodiment, an image-side surface of the fifth lens L5 is convex in the paraxial region, and the fifth lens L5 has a positive refractive power. 
     A focal length of the fifth lens L5 is defined as f5, and the camera optical lens  10  further satisfies a condition of 0.51≤f5/f≤2.37, which can effectively make a light angle of the camera lens gentle and reduce an tolerance sensitivity. Preferably, the camera optical lens  10  further satisfies a condition of 0.82≤f5/f≤1.90. 
     A curvature radius of an object-side surface of the fifth lens L5 is defined as R9, a curvature radius of the image-side surface of the fifth lens L5 is defined as R10, and the camera optical lens  10  further satisfies a condition of 0.31≤(R9+R10)/(R9−R10)≤2.75, which specifies a shape of the fifth lens L5. Within this range, a development towards ultra-thin and wide-angle lenses can facilitate correcting a problem of the off-axis aberration. Preferably, the camera optical lens  10  further satisfies a condition of 0.49≤(R9+R10)/(R9−R10)≤2.20. 
     An on-axis thickness of the fifth lens L5 is defined as d9, and the camera optical lens  10  further satisfies a condition of 0.05≤d9/TTL≤0.20. This can facilitate achieving ultra-thin lenses. Preferably, the camera optical lens  10  further satisfies a condition of 0.08≤d9/TTL≤0.16. 
     In an embodiment, an object-side surface of the sixth lens L6 is convex in the paraxial region, an image-side surface of the sixth lens L6 is concave in the paraxial region, and the sixth lens L6 has a negative refractive power. 
     A focal length of the sixth lens L6 is defined as f6, and the camera optical lens  10  further satisfies a condition of −7.59≤f6/f≤−1.14. The appropriate distribution of refractive power makes it possible that the system has the better imaging quality and lower sensitivity. Preferably, the camera optical lens  10  further satisfies a condition of −4.74≤f6/f≤−1.43. 
     A curvature radius of the object-side surface of the sixth lens L6 is defined as R11, a curvature radius of the image-side surface of the sixth lens L6 is defined as R12, and the camera optical lens  10  further satisfies a condition of 1.87≤(R11+R12)/(R11−R12)≤9.92, which specifies a shape of the sixth lens L6. Within this range, a development towards ultra-thin and wide-angle lenses would facilitate correcting the problem of the off-axis aberration. Preferably, the camera optical lens  10  further satisfies a condition of 3.00≤(R11+R12)/(R11−R12)≤7.94. 
     The on-axis thickness of the sixth lens L6 is defined as d11, and the camera optical lens  10  further satisfies a condition of 0.05≤d11/TTL≤0.18. This can facilitate achieving ultra-thin lenses. Preferably, the camera optical lens  10  further satisfies a condition of 0.08≤d11/TTL≤0.15. 
     In an embodiment, the focal length of the camera optical lens is defined as f, a combined focal length of the first lens and the second lens is defined as f12, and the camera optical lens  10  further satisfies a condition of −200.67≤f12/f≤−2.12. This can eliminate the aberration and distortion of the camera optical lens and reduce a back focal length of the camera optical lens, thereby maintaining miniaturization of the camera optical lens. Preferably, the camera optical lens  10  further satisfies a condition of −125.42≤f12/f≤−2.65. 
     In an embodiment, the total optical length TTL of the camera optical lens  10  is less than or equal to 5.50 mm, which is beneficial for achieving ultra-thin lenses. Preferably, the total optical length TTL of the camera optical lens  10  is less than or equal to 5.25 mm. 
     In an embodiment, the camera optical lens  10  has a large aperture, and an F number of the camera optical lens  10  is less than or equal to 1.85. Preferably, the F number of the camera optical lens  10  is less than or equal to 1.82. 
     With such designs, the total optical length TTL of the camera optical lens  10  can be made as short as possible, thus the miniaturization characteristics can be maintained. 
     In the following, examples will be used to describe the camera optical lens  10  of the present disclosure. The symbols recorded in each example will be described as follows. The focal length, on-axis distance, curvature radius, on-axis thickness, inflexion point position, and arrest point position are all in units of mm. 
     TTL: Optical length (the total optical length from the object-side surface of the first lens to the image surface of the camera optical lens along the optical axis) in mm. 
     Preferably, inflexion points and/or arrest points can be arranged on the object-side surface and/or the image-side surface of the lens, so as to satisfy the demand for high quality imaging. The description below can be referred for specific implementations. 
     The design data of the camera optical lens  10  in Embodiment 1 of the present disclosure are shown in Table 1 and Table 2. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 1 
               
               
                   
                   
               
               
                   
                 R 
                 d 
                 nd 
                 νd 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 S1 
                 ∞ 
                 d0= 
                 −0.100  
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 R1 
                 2.490 
                 d1= 
                 0.290 
                 nd1 
                 1.5445 
                 ν1 
                 55.99 
               
               
                 R2 
                 3.533 
                 d2= 
                 0.099 
               
               
                 R3 
                 −173.249 
                 d3= 
                 0.220 
                 nd2 
                 1.6614 
                 ν2 
                 20.41 
               
               
                 R4 
                 8.953 
                 d4= 
                 0.060 
               
               
                 R5 
                 1.537 
                 d5= 
                 0.382 
                 nd3 
                 1.5445 
                 ν3 
                 55.99 
               
               
                 R6 
                 2.438 
                 d6= 
                 0.294 
               
               
                 R7 
                 3.047 
                 d7= 
                 0.251 
                 nd4 
                 1.6355 
                 ν4 
                 23.97 
               
               
                 R8 
                 1.960 
                 d8= 
                 0.145 
               
               
                 R9 
                 9.986 
                 d9= 
                 0.622 
                 nd5 
                 1.5445 
                 ν5 
                 55.99 
               
               
                 R10 
                 −2.369 
                 d10= 
                 0.994 
               
               
                 R11 
                 1.150 
                 d11= 
                 0.473 
                 nd6 
                 1.5352 
                 ν6 
                 56.12 
               
               
                 R12 
                 0.848 
                 d12= 
                 0.555 
               
               
                 R13 
                 ∞ 
                 d13= 
                 0.210 
                 ndg 
                 1.5168 
                 νg 
                 64.17 
               
               
                 R14 
                 ∞ 
                 d14= 
                 0.406 
               
               
                   
               
            
           
         
       
     
     In the table, meanings of various symbols will be described as follows. 
     S1: aperture; 
     R: curvature radius of an optical surface, a central curvature radius for a lens; 
     R1: curvature radius of the object-side surface of the first lens L1; 
     R2: curvature radius of the image-side surface of the first lens L1; 
     R3: curvature radius of the object-side surface of the second lens L2; 
     R4: curvature radius of the image-side surface of the second lens L2; 
     R5: curvature radius of the object-side surface of the third lens L3; 
     R6: curvature radius of the image-side surface of the third lens L3; 
     R7: curvature radius of the object-side surface of the fourth lens L4; 
     R8: curvature radius of the image-side surface of the fourth lens L4; 
     R9: curvature radius of the object-side surface of the fifth lens L5; 
     R10: curvature radius of the image-side surface of the fifth lens L5; 
     R11: curvature radius of the object-side surface of the sixth lens L6; 
     R12: curvature radius of the image-side surface of the sixth lens L6; 
     R13: curvature radius of an object-side surface of the optical filter GF; 
     R14: curvature radius of an image-side surface of the optical filter GF; 
     d: on-axis thickness of a lens and an on-axis distance between lens; 
     d0: on-axis distance from the aperture S1 to the object-side surface of the first lens L1; 
     d1: on-axis thickness of the first lens L1; 
     d2: on-axis distance from the image-side surface of the first lens L1 to the object-side surface of the second lens L2; 
     d3: on-axis thickness of the second lens L2; 
     d4: on-axis distance from the image-side surface of the second lens L2 to the object-side surface of the third lens L3; 
     d5: on-axis thickness of the third lens L3; 
     d6: on-axis distance from the image-side surface of the third lens L3 to the object-side surface of the fourth lens L4; 
     d7: on-axis thickness of the fourth lens L4; 
     d8: on-axis distance from the image-side surface of the fourth lens L4 to the object-side surface of the fifth lens L5; 
     d9: on-axis thickness of the fifth lens L5; 
     d10: on-axis distance from the image-side surface of the fifth lens L5 to the object-side surface of the sixth lens L6; 
     d11: on-axis thickness of the sixth lens L6; 
     d12: on-axis distance from the image-side surface of the seventh lens L7 to the object-side surface of the optical filter GF; 
     d13: on-axis thickness of the optical filter GF; 
     d14: on-axis distance from the image-side surface to the image surface of the optical filter GF; 
     nd: refractive index of the d line; 
     nd1: refractive index of the d line of the first lens L1; 
     nd2: refractive index of the d line of the second lens L2; 
     nd3: refractive index of the d line of the third lens L3; 
     nd4: refractive index of the d line of the fourth lens L4; 
     nd5: refractive index of the d line of the fifth lens L5; 
     nd6: refractive index of the d line of the sixth lens L6; 
     ndg: refractive index of the d line of the optical filter GF; 
     vd: abbe number; 
     v1: abbe number of the first lens L1; 
     v2: abbe number of the second lens L2; 
     v3: abbe number of the third lens L3; 
     v4: abbe number of the fourth lens L4; 
     v5: abbe number of the fifth lens L5; 
     v6: abbe number of the sixth lens L6; 
     vg: abbe number of the optical filter GF. 
     Table 2 shows aspherical surface data of the camera optical lens  10  in Embodiment 1 of the present disclosure. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 2 
               
             
            
               
                   
                   
               
               
                   
                 Conic 
                   
               
               
                   
                 coefficient 
                 Aspheric surface coefficients 
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                   
                 k 
                 A4 
                 A6 
                 A8 
                 A10 
                 A12 
                 A14 
                 A16 
               
               
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 R1 
                 −4.4244E+00 
                 −2.7201E−02 
                 7.2388E−03 
                 −1.6358E−02 
                 5.8563E−05 
                 0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R2 
                 −4.0481E+01 
                 −7.3757E−03 
                 −2.4147E−01  
                  2.9621E−01 
                 −1.1191E−01  
                 0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R3 
                 −9.0000E+01 
                  5.2233E−02 
                 −3.7467E−01  
                  6.0620E−01 
                 −3.9848E−01  
                 1.0530E−01 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R4 
                  3.6442E+01 
                 −4.2511E−02 
                 −2.2416E−01  
                  5.0076E−01 
                 −4.5711E−01  
                 1.6822E−01 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R5 
                  4.9507E−01 
                 −2.1304E−01 
                 3.8839E−02 
                 −6.1935E−02 
                 −3.0026E−02  
                 3.1353E−02 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R6 
                  7.7957E−01 
                 −7.6728E−02 
                 1.3622E−02 
                 −1.2567E−01 
                 5.5696E−02 
                 0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R7 
                  3.9377E+00 
                 −3.3504E−01 
                 1.8616E−01 
                 −1.2952E−01 
                 6.3838E−02 
                 −3.2722E−03  
                 −5.9456E−03  
                 0.0000E+00 
               
               
                 R8 
                 −7.8911E+00 
                 −1.8667E−01 
                 1.4765E−01 
                 −1.0921E−01 
                 3.5516E−03 
                 9.2564E−02 
                 −6.5094E−02  
                 1.2629E−02 
               
               
                 R9 
                 −9.0000E+01 
                 −5.1320E−02 
                 8.8292E−02 
                 −1.2119E−01 
                 6.4765E−02 
                 6.3679E−04 
                 −6.9669E−03  
                 0.0000E+00 
               
               
                 R10 
                 −1.8241E+00 
                 −1.0338E−01 
                 1.1810E−01 
                 −1.1820E−01 
                 1.0259E−01 
                 −6.1509E−02  
                 2.2653E−02 
                 −3.4703E−03  
               
               
                 R11 
                 −9.8377E−01 
                 −3.0460E−01 
                 1.0692E−01 
                 −3.4201E−02 
                 8.7674E−03 
                 −1.5219E−03  
                 1.6096E−04 
                 −7.8140E−06  
               
               
                 R12 
                 −2.1556E+00 
                 −1.5648E−01 
                 7.2198E−02 
                 −2.2957E−02 
                 4.6752E−03 
                 −5.8306E−04  
                 4.0433E−05 
                 −1.1865E−06  
               
               
                   
               
            
           
         
       
     
     Here, K is a conic coefficient, and A4, A6, A8, A10, A12, A14 and A16 are aspheric surface coefficients. 
     IH: Image height
 
 y =( x   2   /R )/[1+{1−( k+ 1)( x   2   /R   2 )} 1/2 ]+ A 4 x   4   +A 6 x   6   +A 8 x   8   +A 10 x   10   +A 12 x   12   +A 14 x   14   +A 16 x   16   (1)
 
     For convenience, an aspheric surface of each lens surface uses the aspheric surfaces shown in the above formula (1). However, the present disclosure is not limited to the aspherical polynomials form shown in the formula (1). 
     Table 3 and Table 4 show design data of inflexion points and arrest points of the camera optical lens  10  according to Embodiment 1 of the present disclosure. P1R1 and P1R2 represent the object-side surface and the image-side surface of the first lens L1, P2R1 and P2R2 represent the object-side surface and the image-side surface of the second lens L2, P3R1 and P3R2 represent the object-side surface and the image-side surface of the third lens L3, P4R1 and P4R2 represent the object-side surface and the image-side surface of the fourth lens L4, P5R1 and P5R2 represent the object-side surface and the image-side surface of the fifth lens L5, and P6R1 and P6R2 represent the object-side surface and the image-side surface of the sixth lens L6. The data in the column named “inflexion point position” refer to vertical distances from inflexion points arranged on each lens surface to the optic axis of the camera optical lens  10 . The data in the column named “arrest point position” refer to vertical distances from arrest points arranged on each lens surface to the optical axis of the camera optical lens  10 . 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 3 
               
               
                   
                   
               
               
                   
                 Number(s) of 
                 Inflexion point 
                 Inflexion point 
                 Inflexion point 
               
               
                   
                 inflexion points 
                 position 1 
                 position 2 
                 position 3 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 P1R1 
                 1 
                 0.745 
                   
                   
               
               
                 P1R2 
                 1 
                 0.415 
               
               
                 P2R1 
                 3 
                 0.115 
                 0.235 
                 0.745 
               
               
                 P2R2 
                 2 
                 0.355 
                 0.835 
               
               
                 P3R1 
                 2 
                 0.605 
                 1.035 
               
               
                 P3R2 
                 1 
                 0.595 
               
               
                 P4R1 
                 1 
                 0.325 
               
               
                 P4R2 
                 1 
                 0.455 
               
               
                 P5R1 
                 1 
                 0.515 
               
               
                 P5R2 
                 1 
                 1.075 
               
               
                 P6R1 
                 2 
                 0.565 
                 1.875 
               
               
                 P6R2 
                 2 
                 0.685 
                 2.635 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
               
             
               
                   
                 TABLE 4 
               
               
                   
                   
               
               
                   
                 Number(s) of 
                 Arrest point 
                 Arrest point 
               
               
                   
                 arrest points 
                 position 1 
                 position 2 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 P1R1 
                 0 
                   
                   
               
               
                   
                 P1R2 
                 1 
                 0.765 
               
               
                   
                 P2R1 
                 1 
                 0.915 
               
               
                   
                 P2R2 
                 2 
                 0.635 
                 0.925 
               
               
                   
                 P3R1 
                 0 
               
               
                   
                 P3R2 
                 1 
                 0.885 
               
               
                   
                 P4R1 
                 1 
                 0.585 
               
               
                   
                 P4R2 
                 1 
                 1.085 
               
               
                   
                 P5R1 
                 1 
                 0.875 
               
               
                   
                 P5R2 
                 0 
               
               
                   
                 P6R1 
                 1 
                 1.105 
               
               
                   
                 P6R2 
                 1 
                 1.755 
               
               
                   
                   
               
            
           
         
       
     
       FIG. 2  and  FIG. 3  illustrate a longitudinal aberration and a lateral color with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm and 650 nm after passing the camera optical lens  10  according to Embodiment 1, respectively.  FIG. 4  illustrates a field curvature and a distortion with a wavelength of 555 nm after passing the camera optical lens  10  according to Embodiment 1. A field curvature S in  FIG. 4  is a field curvature in a sagittal direction, and T is a field curvature in a tangential direction. 
     Table 13 in the following shows various values of Embodiments 1, 2, 3 and values corresponding to parameters which are specified in the above conditions. 
     As shown in Table 13, Embodiment 1 satisfies the above conditions. 
     In this Embodiment, an entrance pupil diameter of the camera optical lens is 1.944 mm, an image height of 1.0H is 3.147 mm, an FOV (field of view) in a diagonal direction is 82.80°. Thus, the camera optical lens has a wide-angle and is ultra-thin. Its on-axis and off-axis chromatic aberrations are fully corrected, thereby achieving excellent optical characteristics. 
     Embodiment 2 
     Embodiment 2 is basically the same as Embodiment 1 and involves symbols having the same meanings as Embodiment 1, and only differences therebetween will be described in the following. 
     Table 5 and Table 6 show design data of a camera optical lens  20  in Embodiment 2 of the present disclosure. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 5 
               
               
                   
                   
               
               
                   
                 R 
                 d 
                 nd 
                 νd 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 S1 
                 ∞ 
                 d0= 
                 −0.113  
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 R1 
                 2.168 
                 d1= 
                 0.281 
                 nd1 
                 1.5445 
                 ν1 
                 55.99 
               
               
                 R2 
                 2.635 
                 d2= 
                 0.129 
               
               
                 R3 
                 −57.064 
                 d3= 
                 0.220 
                 nd2 
                 1.6614 
                 ν2 
                 20.41 
               
               
                 R4 
                 4.697 
                 d4= 
                 0.060 
               
               
                 R5 
                 1.328 
                 d5= 
                 0.571 
                 nd3 
                 1.5445 
                 ν3 
                 55.99 
               
               
                 R6 
                 6.957 
                 d6= 
                 0.300 
               
               
                 R7 
                 5.708 
                 d7= 
                 0.250 
                 nd4 
                 1.6355 
                 ν4 
                 23.97 
               
               
                 R8 
                 3.319 
                 d8= 
                 0.517 
               
               
                 R9 
                 −6.528 
                 d9= 
                 0.660 
                 nd5 
                 1.5445 
                 ν5 
                 55.99 
               
               
                 R10 
                 −1.778 
                 d10= 
                 0.206 
               
               
                 R11 
                 1.572 
                 d11= 
                 0.609 
                 nd6 
                 1.5352 
                 ν6 
                 56.12 
               
               
                 R12 
                 0.910 
                 d12= 
                 0.555 
               
               
                 R13 
                 ∞ 
                 d13= 
                 0.210 
                 ndg 
                 1.5168 
                 νg 
                 64.17 
               
               
                 R14 
                 ∞ 
                 d14= 
                 0.430 
               
               
                   
               
            
           
         
       
     
     Table 6 shows aspherical surface data of each lens of the camera optical lens  20  in Embodiment 2 of the present disclosure. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 6 
               
             
            
               
                   
                   
               
               
                   
                 Conic 
                   
               
               
                   
                 coefficient 
                 Aspheric surface coefficients 
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                   
                 k 
                 A4 
                 A6 
                 A8 
                 A10 
                 A12 
                 A14 
                 A16 
               
               
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 R1 
                 −2.3378E+00 
                 −1.9890E−02 
                 −8.4676E−02 
                 4.7939E−02 
                 −2.8118E−02 
                 0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R2 
                 −7.9472E+00 
                  6.4458E−02 
                 −3.8694E−01 
                 2.6617E−01 
                 −6.7476E−02 
                 0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R3 
                 −9.0000E+01 
                  1.3690E−01 
                 −5.4978E−01 
                 6.8250E−01 
                 −3.9360E−01 
                 8.8520E−02 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R4 
                 −1.4371E+00 
                 −1.5978E−01 
                 −7.2491E−02 
                 3.5243E−01 
                 −3.2298E−01 
                 9.4297E−02 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R5 
                 −2.5744E−02 
                 −2.9908E−01 
                  3.4713E−01 
                 −3.9185E−01  
                  2.3220E−01 
                 −6.6147E−02  
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R6 
                  1.8781E+01 
                  6.9195E−03 
                 −3.1073E−02 
                 4.8876E−02 
                 −1.7459E−01 
                 1.8479E−01 
                 −6.5772E−02  
                 0.0000E+00 
               
               
                 R7 
                  1.8125E+01 
                 −2.2532E−01 
                 −9.4434E−03 
                 1.4099E−01 
                 −2.3795E−01 
                 2.3711E−01 
                 −8.5457E−02  
                 0.0000E+00 
               
               
                 R8 
                  1.5996E+00 
                 −1.4750E−01 
                 −1.0402E−01 
                 3.7719E−01 
                 −5.3090E−01 
                 4.3947E−01 
                 −1.8538E−01  
                 3.0114E−02 
               
               
                 R9 
                 −3.6783E+01 
                  7.0395E−02 
                 −1.2765E−01 
                 1.0503E−01 
                 −6.6600E−02 
                 1.9199E−02 
                 −1.6054E−03  
                 0.0000E+00 
               
               
                 R10 
                 −1.7022E+00 
                 −1.0384E−01 
                  2.7365E−01 
                 −3.9822E−01  
                  3.3967E−01 
                 −1.7251E−01  
                 4.6917E−02 
                 −5.1322E−03  
               
               
                 R11 
                 −1.2151E+01 
                 −1.0487E−01 
                  2.0298E−02 
                 −5.3764E−04  
                  8.0256E−04 
                 −4.1542E−04  
                 6.6419E−05 
                 −3.6105E−06  
               
               
                 R12 
                 −3.6006E+00 
                 −7.6203E−02 
                  2.9088E−02 
                 −7.9657E−03  
                  1.4647E−03 
                 −1.7308E−04  
                 1.1879E−05 
                 −3.5854E−07  
               
               
                   
               
            
           
         
       
     
     Table 7 and table 8 show design data of inflexion points and arrest points of each lens of the camera optical lens  20  lens according to Embodiment 2 of the present disclosure. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 7 
               
               
                   
                   
               
               
                   
                 Number(s) of 
                 Inflexion point 
                 Inflexion point 
                 Inflexion point 
               
               
                   
                 inflexion points 
                 position 1 
                 position 2 
                 position 3 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 P1R1 
                 1 
                 0.635 
                   
                   
               
               
                 P1R2 
                 1 
                 0.485 
               
               
                 P2R1 
                 2 
                 0.115 
                 0.355 
               
               
                 P2R2 
                 1 
                 0.335 
               
               
                 P3R1 
                 1 
                 0.925 
               
               
                 P3R2 
                 1 
                 0.675 
               
               
                 P4R1 
                 1 
                 0.265 
               
               
                 P4R2 
                 3 
                 0.415 
                 0.925 
                 1.235 
               
               
                 P5R1 
                 0 
               
               
                 P5R2 
                 1 
                 1.375 
               
               
                 P6R1 
                 3 
                 0.465 
                 1.535 
                 2.275 
               
               
                 P6R2 
                 1 
                 0.695 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
               
             
               
                   
                 TABLE 8 
               
               
                   
                   
               
               
                   
                 Number of 
                 Arrest point 
                 Arrest point 
               
               
                   
                 arrest points 
                 position 1 
                 position 2 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 P1R1 
                 0 
                   
                   
               
               
                   
                 P1R2 
                 1 
                 0.765 
               
               
                   
                 P2R1 
                 2 
                 0.205 
                 0.435 
               
               
                   
                 P2R2 
                 1 
                 0.625 
               
               
                   
                 P3R1 
                 0 
               
               
                   
                 P3R2 
                 1 
                 0.965 
               
               
                   
                 P4R1 
                 1 
                 0.465 
               
               
                   
                 P4R2 
                 2 
                 0.805 
                 1.005 
               
               
                   
                 P5R1 
                 0 
               
               
                   
                 P5R2 
                 0 
               
               
                   
                 P6R1 
                 1 
                 0.955 
               
               
                   
                 P6R2 
                 1 
                 2.015 
               
               
                   
                   
               
            
           
         
       
     
       FIG. 6  and  FIG. 7  illustrate a longitudinal aberration and a lateral color of light with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm and 650 nm after passing the camera optical lens  20  according to Embodiment 2.  FIG. 8  illustrates a field curvature and a distortion of light with a wavelength of 555 nm after passing the camera optical lens  20  according to Embodiment 2. 
     As shown in Table 13, Embodiment 2 satisfies the above conditions. 
     In an embodiment, an entrance pupil diameter of the camera optical lens is 1.924 mm, an image height of 1.0H is 3.147 mm, an FOV (field of view) in the diagonal direction is 83.20°. Thus, the camera optical lens has a wide-angle and is ultra-thin. Its on-axis and off-axis chromatic aberrations are fully corrected, thereby achieving excellent optical characteristics. 
     Embodiment 3 
     Embodiment 3 is basically the same as Embodiment 1 and involves symbols having the same meanings as Embodiment 1, and only differences therebetween will be described in the following. 
     Table 9 and Table 10 show design data of a camera optical lens  30  in Embodiment 3 of the present disclosure. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 9 
               
               
                   
                   
               
               
                   
                 R 
                 d 
                 nd 
                 νd 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 S1 
                 ∞ 
                 d0= 
                 −0.084  
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 R1 
                 2.244 
                 d1= 
                 0.263 
                 nd1 
                 1.5445 
                 ν1 
                 55.99 
               
               
                 R2 
                 2.390 
                 d2= 
                 0.139 
               
               
                 R3 
                 −23.037 
                 d3= 
                 0.220 
                 nd2 
                 1.6614 
                 ν2 
                 20.41 
               
               
                 R4 
                 7.360 
                 d4= 
                 0.060 
               
               
                 R5 
                 1.380 
                 d5= 
                 0.654 
                 nd3 
                 1.5445 
                 ν3 
                 55.99 
               
               
                 R6 
                 9.794 
                 d6= 
                 0.229 
               
               
                 R7 
                 7.098 
                 d7= 
                 0.250 
                 nd4 
                 1.6355 
                 ν4 
                 23.97 
               
               
                 R8 
                 3.326 
                 d8= 
                 0.551 
               
               
                 R9 
                 −7.424 
                 d9= 
                 0.530 
                 nd5 
                 1.5445 
                 ν5 
                 55.99 
               
               
                 R10 
                 −2.178 
                 d10= 
                 0.308 
               
               
                 R11 
                 1.306 
                 d11= 
                 0.586 
                 nd6 
                 1.5352 
                 ν6 
                 56.12 
               
               
                 R12 
                 0.898 
                 d12= 
                 0.555 
               
               
                 R13 
                 ∞ 
                 d13= 
                 0.210 
                 ndg 
                 1.5168 
                 νg 
                 64.17 
               
               
                 R14 
                 ∞ 
                 d14= 
                 0.446 
               
               
                   
               
            
           
         
       
     
     Table 10 shows aspherical surface data of each lens of the camera optical lens  30  in Embodiment 3 of the present disclosure. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 10 
               
             
            
               
                   
                   
               
               
                   
                 Conic 
                   
               
               
                   
                 coefficient 
                 Aspheric surface coefficients 
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                   
                 k 
                 A4 
                 A6 
                 A8 
                 A10 
                 A12 
                 A14 
                 A16 
               
               
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 R1 
                 −4.1461E+00 
                 −2.5141E−02 
                 −9.7440E−02 
                  5.4074E−02 
                 −2.9750E−02  
                  0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R2 
                 −8.0639E+00 
                  4.9695E−02 
                 −3.9042E−01 
                  2.5012E−01 
                 −5.5564E−02  
                  0.0000E+00 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R3 
                  9.0000E+01 
                  1.3288E−01 
                 −5.7329E−01 
                  7.5635E−01 
                 −4.5914E−01  
                  1.0742E−01 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R4 
                  1.2472E+01 
                 −1.5852E−01 
                 −1.2552E−01 
                  5.0661E−01 
                 −4.5528E−01  
                  1.3098E−01 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R5 
                  4.5219E−02 
                 −2.8938E−01 
                  2.8715E−01 
                 −2.6432E−01 
                 1.2326E−01 
                 −3.1358E−02 
                 0.0000E+00 
                 0.0000E+00 
               
               
                 R6 
                 −4.1880E+01 
                  1.2620E−02 
                 −2.8541E−02 
                 −7.8867E−02 
                 9.5723E−02 
                 −2.6574E−02 
                 −3.8162E−03  
                 0.0000E+00 
               
               
                 R7 
                  2.6463E+01 
                 −2.5001E−01 
                  1.4390E−01 
                 −2.7693E−01 
                 3.9388E−01 
                 −2.1343E−01 
                 3.7006E−02 
                 0.0000E+00 
               
               
                 R8 
                  2.0098E+00 
                 −1.9737E−01 
                  1.1351E−01 
                 −1.1590E−01 
                 1.3927E−01 
                 −6.6978E−02 
                 7.5627E−03 
                 1.2575E−03 
               
               
                 R9 
                  7.9495E+00 
                  3.6826E−02 
                 −3.0437E−02 
                  1.2361E−02 
                 −2.2130E−02  
                  1.0206E−02 
                 −1.3784E−03  
                 0.0000E+00 
               
               
                 R10 
                 −1.2404E+00 
                 −1.8059E−01 
                  4.1788E−01 
                 −5.5491E−01 
                 4.6615E−01 
                 −2.4401E−01 
                 7.0272E−02 
                 −8.2502E−03  
               
               
                 R11 
                 −8.4362E+00 
                 −1.1183E−01 
                  3.8107E−02 
                 −1.3325E−02 
                 4.8443E−03 
                 −1.0631E−03 
                 1.1740E−04 
                 −5.1291E−06  
               
               
                 R12 
                 −3.4734E+00 
                 −7.2246E−02 
                  2.5895E−02 
                 −6.6867E−03 
                 1.1525E−03 
                 −1.2903E−04 
                 8.6283E−06 
                 −2.6202E−07  
               
               
                   
               
            
           
         
       
     
     Table 11 and Table 12 show design data inflexion points and arrest points of the respective lenses in the camera optical lens  30  according to Embodiment 3 of the present disclosure. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 11 
               
               
                   
                   
               
               
                   
                 Number(s) of 
                 Inflexion point 
                 Inflexion point 
                 Inflexion point 
               
               
                   
                 inflexion points 
                 position 1 
                 position 2 
                 position 3 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                 P1R1 
                 1 
                 0.575 
                   
                   
               
               
                 P1R2 
                 1 
                 0.475 
               
               
                 P2R1 
                 0 
               
               
                 P2R2 
                 1 
                 0.265 
               
               
                 P3R1 
                 1 
                 0.925 
               
               
                 P3R2 
                 1 
                 0.545 
               
               
                 P4R1 
                 3 
                 0.235 
                 0.935 
                 1.105 
               
               
                 P4R2 
                 3 
                 0.415 
                 0.875 
                 1.235 
               
               
                 P5R1 
                 0 
               
               
                 P5R2 
                 1 
                 1.305 
               
               
                 P6R1 
                 3 
                 0.495 
                 1.615 
                 2.315 
               
               
                 P6R2 
                 1 
                 0.705 
               
               
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                   
                 TABLE 12 
               
               
                   
                   
               
               
                   
                 Number of arrest points 
                 Arrest point position 1 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 P1R1 
                 1 
                 0.895 
               
               
                   
                 P1R2 
                 1 
                 0.745 
               
               
                   
                 P2R1 
                 0 
               
               
                   
                 P2R2 
                 1 
                 0.465 
               
               
                   
                 P3R1 
                 0 
               
               
                   
                 P3R2 
                 1 
                 0.825 
               
               
                   
                 P4R1 
                 1 
                 0.405 
               
               
                   
                 P4R2 
                 0 
               
               
                   
                 P5R1 
                 0 
               
               
                   
                 P5R2 
                 0 
               
               
                   
                 P6R1 
                 1 
                 1.075 
               
               
                   
                 P6R2 
                 1 
                 2.015 
               
               
                   
                   
               
            
           
         
       
     
       FIG. 10  and  FIG. 11  illustrate a longitudinal aberration and a lateral color of light with wavelengths of 470 nm, 510 nm, 555 nm, 610 nm and 650 nm after passing the camera optical lens  30  according to Embodiment 3.  FIG. 12  illustrates a field curvature and a distortion of light with a wavelength of 555 nm after passing the camera optical lens  30  according to Embodiment 3. 
     Table 13 in the following lists values corresponding to the respective conditions in an embodiment according to the above conditions. Obviously, the embodiment satisfies the above conditions. 
     In an embodiment, an entrance pupil diameter of the camera optical lens is 1.912 mm, an image height of 1.0H is 3.147 mm, an FOV (field of view) in the diagonal direction is 83.60°. Thus, the camera optical lens has a wide-angle and is ultra-thin. Its on-axis and off-axis chromatic aberrations are fully corrected, thereby achieving excellent optical characteristics. 
     
       
         
           
               
               
               
               
             
               
                 TABLE 13 
               
               
                   
               
               
                 Parameters and 
                   
                   
                   
               
               
                 conditions 
                 Embodiment 1 
                 Embodiment 2 
                 Embodiment 3 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                 f 
                 3.500 
                 3.463 
                 3.441 
               
               
                 f1 
                 14.067 
                 18.464 
                 41.205 
               
               
                 f2 
                 −12.753 
                 −6.494 
                 −8.336 
               
               
                 f3 
                 6.619 
                 2.901 
                 2.861 
               
               
                 f4 
                 −9.422 
                 −12.907 
                 −10.032 
               
               
                 f5 
                 3.569 
                 4.264 
                 5.448 
               
               
                 f6 
                 −13.283 
                 −5.923 
                 −10.727 
               
               
                 f12 
                 −351.181 
                 −11.029 
                 −11.107 
               
               
                 FNO 
                 1.80 
                 1.80 
                 1.80 
               
               
                 f1/f2 
                 −1.10 
                 −2.84 
                 −4.94 
               
               
                 R3/R4 
                 −19.35 
                 −12.15 
                 −3.13 
               
               
                   
               
            
           
         
       
     
     It can be appreciated by one having ordinary skill in the art that the description above is only embodiments of the present disclosure. In practice, one having ordinary skill in the art can make various modifications to these embodiments in forms and details without departing from the scope of the present disclosure.