Patent Publication Number: US-11378777-B2

Title: Camera optical lens

Description:
FIELD OF THE PRESENT INVENTION 
     The present invention relates to the field of optical lens, and more particularly, to a camera optical lens suitable for handheld terminal devices, such as smart phones and digital cameras, and imaging devices, such as monitors or PC lenses. 
     DESCRIPTION OF RELATED ART 
     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 lenses 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 structures gradually appear in lens designs. There is an urgent need for ultra-thin and wide-angle camera lenses with good optical characteristics and fully corrected chromatic aberration. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic diagram of a structure of a camera optical lens in accordance with Embodiment 1 of the present invention; 
         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 in accordance with Embodiment 2 of the present invention; 
         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 in accordance with Embodiment 3 of the present invention; 
         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 ; and 
         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 THE EXEMPLARY EMBODIMENTS 
     In order to make the objects, technical solutions, and advantages of the present invention more apparent, the embodiments of the present invention will be described in detail below. However, it will be apparent to the one skilled in the art that, in the various embodiments of the present invention, a number of technical details are presented in order to provide the reader with a better understanding of the invention. However, the technical solutions claimed in the present invention can be implemented without these technical details and various changes and modifications based on the following embodiments. 
     Embodiment 1 
     As referring to the accompanying drawings, the present invention provides a camera optical lens  10 .  FIG. 1  shows the camera optical lens  10  according to Embodiment 1 of the present invention, the camera optical lens comprises 6 lenses. Specifically, from an object side to an image side, the camera optical lens  10  comprises in sequence: 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. Optical elements like optical filter GF can be arranged between the sixth lens L6 and an image surface S1. 
     The first lens L1 is made of plastic material, the second lens L2 is made of plastic material, the third lens L3 is made of plastic material, the fourth lens L4 is made of plastic material, the fifth lens L5 is made of plastic material, and the sixth lens L6 is made of plastic material. 
     Here, a focal length of the camera optical lens  10  is defined as f, and a focal length of the first lens L1 is defined as f1. The camera optical lens further satisfies the following condition: 4.00 f1/f 7.00, which defines a positive refractive power of the first lens L1. If the value of f1/f exceeds the lower limit of the above condition, although it is beneficial for developing toward ultra-thin lenses, the positive refractive power of the first lens L1 would be too strong to correct an aberration of the camera optical lens, and it is bad for wide-angle development of lenses. On the contrary, if the value of f1/f exceeds the upper limit of the above condition, the positive refractive power of the first lens L1 becomes too weak to develop ultra-thin lenses. Preferably, the following condition shall be satisfied, 4.00 f1/f 6.95. 
     The second lens L2 has a negative refractive power, and the third lens L3 has a negative refractive power. 
     An on-axis thickness of the third lens L3 is defined as d5, and a curvature radius of an object side surface of the third lens L3 is defined as R5. The camera optical lens further satisfies the following condition: 10.00 R5/d5 30.00. When the value is within the range, it benefits for correcting the abberation of the optical system. Preferably, the following condition shall be satisfied, 10.00 R5/d56 29.75. 
     A total optical length from an object side surface of the first lens to the image surface of the camera optical lens along an optical axis is defined as TTL. When the focal length of the optical camera lens, the focal length of the first lens, the curvature radius of the object side surface of the third lens, and the on-axis thickness of the third lens satisfy the above conditions, the camera optical lens  10  has the advantage of high performance and meets the design demand on low TTL. 
     In the embodiment, the object side surface of the first lens L1 is convex in a paraxial region, an image side surface of the first lens L2 is concave in the paraxial region, and the first lens L1 has a positive refractive power. 
     A curvature radius of the object side surface of the first lens L1 is defined as R1, and a curvature radius of the image side surface of the first lens L1 is defined as R2. The camera optical lens further satisfies the following condition: −13.60 (R1+R2)/(R1−R2) −1.17. This condition reasonably controls a shape of the first lens, so that the first lens can effectively correct the spherical aberration of the system. Preferably, the following condition shall be satisfied, −8.50 (R1+R2)/(R1−R2) −1.47. 
     An on-axis thickness of the first lens L1 is defined as d1. The camera optical lens further satisfies the following condition: 0.03 d1/TTL 0.08, which benefits for developing ultra-thin lenses. Preferably, the following condition shall be satisfied, 0.04 d1/TTL 0.06. 
     In the embodiment, an object side surface of the second lens L2 is convex in the paraxial region, and an image side surface of the second lens L2 is concave in the paraxial region. 
     The focal length of the camera optical lens camera optical lens  10  is defined as f, the focal length of the second lens L2 is defined as f2. The camera optical lens further satisfies the following condition: −1058.59 f2/f −32.07. A negative spherical aberration and the amount of an field curvature caused by the first lens L1 that has the positive refractive power can be reasonably and effectively balanced by controlling the negative refractive power of the second lens L2 being within a reasonable range. Preferably, the following condition shall be satisfied, −661.62 f2/f −40.09. 
     A curvature radius of the object side surface of the second lens L2 is defined as R3, and a curvature radius of the image side surface of the second lens L2 is defined as R4. The camera optical lens further satisfies the following condition: 13.86 (R3+R4)/(R3−R4) 50.98, which defines a shape of the second lens L2. When the value is within the range, as the camera optical lens develops toward ultra-thin and wide-angle, it is beneficial to correct the problem of an axial chromatic aberration. Preferably, the following condition shall be satisfied, 22.18 (R3+R4)/(R3−R4) 40.79. 
     An on-axis thickness of the second lens L2 is defined as d3. The camera optical lens further satisfies the following condition: 0.02 d3/TTL 0.07, which benefits for developing ultra-thin lenses. Preferably, the following condition shall be satisfied, 0.03 d3/TTL 0.06. 
     In the embodiment, the 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. 
     The focal length of the camera optical lens camera optical lens  10  is defined as f, and a focal length of the third lens L3 is defined as f3. The camera optical lens further satisfies the following condition: −6.36 f3/f −1.67. The appropriate distribution of the refractive power leads to a better imaging quality and a lower sensitivity. Preferably, the following condition shall be satisfied, −3.98 f3/f −2.09. 
     The curvature radius of the object side surface of the third lens L3 is defined as R5, and a curvature radius of the image side surface of the third lens L3 is defined as R6. The camera optical lens further satisfies the following condition: 1.39 (R5+R6)/(R5−R6) 9.75. This can effectively control a shape of the third lens L3, thereby facilitating shaping of the third lens L3 and avoiding bad shaping and generation of stress due to the overly large surface curvature of the third lens L3. Preferably, the following condition shall be satisfied, 2.22 (R5+R6)/(R5−R6) 7.80. 
     An on-axis thickness of the third lens L3 is defined as d5. The camera optical lens further satisfies the following condition: 0.02 d5/TTL 0.07, which benefits for developing ultra-thin lenses. Preferably, the following condition shall be satisfied, 0.04 d5/TTL 0.06. 
     In the 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 convex in the paraxial region, and the fourth lens L4 has a positive refractive power. 
     The focal length of the camera optical lens  10  is defined as f, and a focal length of the fourth lens L4 is defined as f4. The camera optical lens further satisfies the following condition: 0.49 f4/f 1.68. The appropriate distribution of the refractive power leads to a better imaging quality and a lower sensitivity. Preferably, the following condition shall be satisfied, 0.78 f4/f 1.35. 
     A curvature radius of the object side surface of the fourth lens L4 is defined as R7, and a curvature radius of the image side surface of the fourth lens L4 is defined as R8. The camera optical lens further satisfies the following condition: −0.88 (R7+R8)/(R7−R8) −0.18, which defines a shape of the fourth lens L4. When the value is within the range, as the development of ultra-thin and wide-angle lens, it benefits for solving the problems, such as correcting an off-axis aberration. Preferably, the following condition shall be satisfied, −0.55 (R7+R8)/(R7−R8) −0.22. 
     An on-axis thickness of the fourth lens L4 is defined as d7. The camera optical lens further satisfies the following condition: 0.05 d7/TTL 0.17, which benefits for developing ultra-thin lenses. Preferably, the following condition shall be satisfied, 0.08 d7/TTL 0.14. 
     In the embodiment, an object side surface of the fifth lens L5 is concave in the paraxial region, 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. 
     The focal length of the camera optical lens  10  is defined as f, and a focal length of the fifth lens L5 is defined as f5. The camera optical lens further satisfies the following condition: −0.29 f5/f 0.98, which can effectively make a light angle of the camera lens be gentle, and the sensitivity of the tolerance can be reduced. Preferably, the following condition shall be satisfied, 0.47 f5/f 0.78. 
     A curvature radius of the object side surface of the fifth lens L5 is defined as R9, and a curvature radius of the image side surface of the fifth lens L5 is defined as R10. The camera optical lens further satisfies the following condition: 0.61 (R9+R10)/(R9−R10) 1.95, which defines a shape of the fifth lens L5. When the value is within the range, as the development of ultra-thin and wide-angle lens, it benefits for solving the problems, such as correcting the off-axis aberration. Preferably, the following condition shall be satisfied, 0.98 (R9+R10)/(R9−R10) 1.56. 
     An on-axis thickness of the fifth lens L5 is defined as d9. The camera optical lens further satisfies the following condition: 0.056 d9/TTL 0.17, which benefits for developing ultra-thin lenses. Preferably, the following condition shall be satisfied, 0.08 d9/TTL 0.14. 
     In the embodiment, an object side surface of the sixth lens L6 is concave 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. 
     The focal length of the camera optical lens  10  is defined as f, and a focal length of the sixth lens L6 is defined as f6. The camera optical lens further satisfies the following condition: −1.13 f6/f −0.34. The appropriate distribution of the refractive power leads to a better imaging quality and a lower sensitivity. Preferably, the following condition shall be satisfied, −0.70 f6/f −0.42. 
     A curvature radius of the object side surface of the sixth lens L6 is defined as R11, and a curvature radius of the image side surface of the sixth lens L6 is defined as R12. The camera optical lens further satisfies the following condition: 0.35 (R11+R12)/(R11−R12) 1.33, which defines a shape of the sixth lens L6. When the value is within the range, as the development of ultra-thin and wide-angle lens, it benefits for solving the problems, such as correcting the off-axis aberration. Preferably, the following condition shall be satisfied, 0.56 (R11+R12)/(R11−R12) 1.07. 
     An on-axis thickness of the sixth lens L6 is defined as d1. The camera optical lens further satisfies the following condition: 0.04 d11/TTL 0.13, which benefits for developing ultra-thin lenses. Preferably, the following condition shall be satisfied, 0.06 d11/TTL 0.10. 
     In this embodiment, the total optical length TTL of the camera optical lens  10  is less than or equal to 5.82 mm, it benefits for developing ultra-thin lenses. Preferably, the total optical length TTL of the camera optical lens  10  is less than or equal to 5.55 mm. 
     In this embodiment, an F number of the camera optical lens  10  is less than or equal to 2.20. The camera optical lens  10  has a large F number and a better imaging performance. Preferably, the F number of the camera optical lens  10  is less than or equal to 2.16. 
     With such design, 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 invention. 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: the total optical length from the object side surface of the first lens to the image surface of the camera optical lens  10  along the optical axis, the unit of TTL is mm. 
     Preferably, inflexion points and/or arrest points can also be arranged on the object side surface and/or image side surface of the lens, so that the demand for high quality imaging can be satisfied, the description below can be referred for specific implementable scheme. 
     The design information of the camera optical lens  10  in Embodiment 1 of the present invention is shown in the tables 1 and 2. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 1 
               
               
                   
                   
               
               
                   
                 R 
                 d 
                 nd 
                 νd 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 S1 
                 ∞ 
                 d0= 
                 0.000 
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 R1 
                 5.817 
                 d1= 
                 0.268 
                 nd1 
                 1.5449 
                 ν1 
                 55.93 
               
               
                 R2 
                 21.123 
                 d2= 
                 0.027 
               
               
                 R3 
                 1.801 
                 d3= 
                 0.250 
                 nd2 
                 1.6510 
                 ν2 
                 21.51 
               
               
                 R4 
                 1.676 
                 d4= 
                 0.090 
               
               
                 R5 
                 4.177 
                 d5= 
                 0.250 
                 nd3 
                 1.6713 
                 ν3 
                 19.24 
               
               
                 R6 
                 2.535 
                 d6= 
                 0.054 
               
               
                 R7 
                 3.384 
                 d7= 
                 0.580 
                 nd4 
                 1.5439 
                 ν4 
                 55.95 
               
               
                 R8 
                 −6.145 
                 d8= 
                 0.950 
               
               
                 R9 
                 −8.972 
                 d9= 
                 0.592 
                 nd5 
                 1.5449 
                 ν5 
                 55.93 
               
               
                 R10 
                 −1.161 
                 d10= 
                 0.374 
               
               
                 R11 
                 −7.507 
                 d11= 
                 0.429 
                 nd6 
                 1.5449 
                 ν6 
                 55.93 
               
               
                 R12 
                 1.346 
                 d12= 
                 0.909 
               
               
                 R13 
                 ∞ 
                 d13= 
                 0.210 
                 ndg 
                 1.5168 
                 νg 
                 64.17 
               
               
                 R14 
                 ∞ 
                 d14= 
                 0.100 
               
               
                   
               
            
           
         
       
     
     where, the meaning of the various symbols is 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 lenses; 
     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 sixth lens L6 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 of the optical filter GF to the image surface; 
     nd: refractive index of d line; 
     nd1: refractive index of d line of the first lens L1; 
     nd2: refractive index of d line of the second lens L2; 
     nd3: refractive index of d line of the third lens L3; 
     nd4: refractive index of d line of the fourth lens L4; 
     nd5: refractive index of d line of the fifth lens L5; 
     nd6: refractive index of d line of the sixth lens L6; 
     ndg: refractive index of 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 invention. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 2 
               
             
            
               
                   
                   
               
               
                   
                 Conic 
                   
               
               
                   
                 coefficient 
                 Aspheric surface coefficients 
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                   
                 k 
                 A4 
                 A6 
                 A8 
                 A10 
                 A12 
                 A14 
                 A16 
               
               
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 R1 
                  0.0000E+00 
                  6.5369E−02 
                  1.4840E−01 
                 −2.7331E−01 
                 −6.0509E−01 
                  2.8454E+00 
                 −3.5449E+00 
                  1.5092E+00 
               
               
                 R2 
                  0.0000E+00 
                  9.1462E−02 
                 −5.7479E−02 
                 −2.5044E−01 
                  1.7992E+00 
                 −3.8939E+00 
                  3.7661E+00 
                 −1.3637E+00 
               
               
                 R3 
                 −6.4481E−02 
                 −1.3860E−01 
                 −8.5614E−02 
                  7.4193E−02 
                 −6.1191E−02 
                 −9.5849E−02 
                  1.5053E−01 
                 −1.0578E−01 
               
               
                 R4 
                 −1.2658E−02 
                 −1.2320E−01 
                 −3.3249E−02 
                 −3.2026E−02 
                  1.9728E−02 
                 −4.0303E−03 
                 −9.1683E−03 
                 −2.5400E−03 
               
               
                 R5 
                 −8.6026E−01 
                  8.1455E−03 
                 −3.8714E−03 
                  1.3259E−02 
                 −1.2033E−03 
                 −5.0453E−03 
                 −1.4146E−03 
                 −8.5110E−04 
               
               
                 R6 
                 −5.0601E−03 
                 −3.2827E−02 
                  1.0514E−02 
                 −8.3891E−04 
                  1.9610E−03 
                  2.3076E−03 
                 −1.0717E−03 
                 −2.3399E−03 
               
               
                 R7 
                  0.0000E+00 
                 −5.1802E−03 
                  6.0032E−03 
                  2.3083E−03 
                  3.4377E−03 
                  8.5416E−04 
                 −2.3256E−03 
                  7.7128E−04 
               
               
                 R8 
                  0.0000E+00 
                 −2.1151E−02 
                 −4.9050E−03 
                 −5.8755E−03 
                  5.5475E−03 
                  2.1402E−03 
                  1.9017E−03 
                  1.6961E−04 
               
               
                 R9 
                  0.0000E+00 
                 −3.3016E−02 
                  4.7499E−03 
                  1.2026E−03 
                 −8.0514E−04 
                 −3.6750E−04 
                 −2.6570E−05 
                  6.3537E−06 
               
               
                 R10 
                 −3.6441E+00 
                 −4.3416E−02 
                  1.7843E−02 
                  1.4681E−03 
                 −2.2173E−04 
                 −5.9177E−05 
                 −7.2324E−06 
                 −1.5977E−06 
               
               
                 R11 
                  0.0000E+00 
                 −9.2335E−03 
                 −1.5072E−03 
                  1.1892E−03 
                 −2.0199E−05 
                 −1.6786E−05 
                 −2.0187E−06 
                  3.7863E−07 
               
               
                 R12 
                 −6.8570E+00 
                 −2.4497E−02 
                  3.6319E−03 
                 −3.4035E−04 
                  3.7350E−07 
                  2.2276E−06 
                 −6.1466E−08 
                 −9.0795E−09 
               
               
                   
               
            
           
         
       
     
     Where, K is a conic coefficient, A4, A6, A8, A10, A12, A14, 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 condition (1). However, the present invention is not limited to the aspherical polynomials form shown in the condition (1). 
     Table 3 and Table 4 show design data of inflexion points and arrest points of respective lens in the camera optical lens  10  according to Embodiment 1 of the present invention. 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” refers to vertical distances from inflexion points arranged on each lens surface to the optical axis of the camera optical lens  10 . The data in the column named “arrest point position” refers to vertical distances from arrest points arranged on each lens surface to the optical axis of the camera optical lens  10 . 
     
       
         
           
               
               
               
               
             
               
                   
                 TABLE 3 
               
               
                   
                   
               
               
                   
                 Number of 
                 Inflexion point 
                 Inflexion point 
               
               
                   
                 inflexion points 
                 position 1 
                 position 2 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 P1R1 
                 0 
                 0 
                 0 
               
               
                   
                 P1R2 
                 0 
                 0 
                 0 
               
               
                   
                 P2R1 
                 1 
                 0.535 
                 0 
               
               
                   
                 P2R2 
                 1 
                 0.605 
                 0 
               
               
                   
                 P3R1 
                 1 
                 0.965 
                 0 
               
               
                   
                 P3R2 
                 1 
                 1.025 
                 0 
               
               
                   
                 P4R1 
                 0 
                 0 
                 0 
               
               
                   
                 P4R2 
                 1 
                 0.965 
                 0 
               
               
                   
                 P5R1 
                 0 
                 0 
                 0 
               
               
                   
                 P5R2 
                 1 
                 1.065 
                 0 
               
               
                   
                 P6R1 
                 2 
                 1.565 
                 2.135 
               
               
                   
                 P6R2 
                 1 
                 0.785 
                 0 
               
               
                   
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                   
                 TABLE 4 
               
               
                   
                   
               
               
                   
                 Number of arrest points 
                 Arrest point position 1 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 P1R1 
                 0 
                 0 
               
               
                   
                 P1R2 
                 0 
                 0 
               
               
                   
                 P2R1 
                 1 
                 0.825 
               
               
                   
                 P2R2 
                 1 
                 0.925 
               
               
                   
                 P3R1 
                 0 
                 0 
               
               
                   
                 P3R2 
                 0 
                 0 
               
               
                   
                 P4R1 
                 0 
                 0 
               
               
                   
                 P4R2 
                 1 
                 1.155 
               
               
                   
                 P5R1 
                 0 
                 0 
               
               
                   
                 P5R2 
                 0 
                 0 
               
               
                   
                 P6R1 
                 0 
                 0 
               
               
                   
                 P6R2 
                 1 
                 2.015 
               
               
                   
                   
               
            
           
         
       
     
       FIG. 2  and  FIG. 3  respectively illustrate a longitudinal aberration and a lateral color of light with wavelengths of 470 nm, 550 nm and 650 nm after passing the camera optical lens  10  according to Embodiment 1.  FIG. 4  illustrates a field curvature and a distortion of light with a wavelength of 550 nm after passing the camera optical lens  10  according to Embodiment 1, in which a field curvature S is a field curvature in a sagittal direction and T is a field curvature in a tangential direction. 
     Table 13 shows various values of Embodiments 1, 2 and 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, the entrance pupil diameter of the camera optical lens  10  is 1.783 mm. The image height of 1.0H is 3.284 mm. The FOV is 83.05°. 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, the meaning of its symbols is the same as that of Embodiment 1, in the following, only the differences are listed. 
     Table 5 and table 6 show the design data of a camera optical lens in Embodiment 2 of the present invention. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 5 
               
               
                   
                   
               
               
                   
                 R 
                 d 
                 nd 
                 νd 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 S1 
                 ∞ 
                 d0= 
                 0.000 
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 R1 
                 4.720 
                 d1= 
                 0.277 
                 nd1 
                 1.5449 
                 ν1 
                 55.93 
               
               
                 R2 
                 7.900 
                 d2= 
                 0.030 
               
               
                 R3 
                 1.826 
                 d3= 
                 0.210 
                 nd2 
                 1.6713 
                 ν2 
                 19.24 
               
               
                 R4 
                 1.718 
                 d4= 
                 0.144 
               
               
                 R5 
                 2.525 
                 d5= 
                 0.250 
                 nd3 
                 1.6713 
                 ν3 
                 19.24 
               
               
                 R6 
                 1.851 
                 d6= 
                 0.130 
               
               
                 R7 
                 3.392 
                 d7= 
                 0.509 
                 nd4 
                 1.5439 
                 ν4 
                 55.95 
               
               
                 R8 
                 −5.853 
                 d8= 
                 1.063 
               
               
                 R9 
                 −11.366 
                 d9= 
                 0.570 
                 nd5 
                 1.5449 
                 ν5 
                 55.93 
               
               
                 R10 
                 −1.121 
                 d10= 
                 0.281 
               
               
                 R11 
                 −12.817 
                 d11= 
                 0.418 
                 nd6 
                 1.5449 
                 ν6 
                 55.93 
               
               
                 R12 
                 1.164 
                 d12= 
                 1.087 
               
               
                 R13 
                 ∞ 
                 d13= 
                 0.210 
                 ndg 
                 1.5168 
                 νg 
                 64.17 
               
               
                 R14 
                 ∞ 
                 d14= 
                 0.100 
               
               
                   
               
            
           
         
       
     
     Table 6 shows aspherical surface data of each lens of the camera optical lens  20  in Embodiment 2 of the present invention. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 6 
               
             
            
               
                   
                   
               
               
                   
                 Conic 
                   
               
               
                   
                 coefficient 
                 Aspherical surface coefficients 
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                   
                 k 
                 A4 
                 A6 
                 A8 
                 A10 
                 A12 
                 A14 
                 A16 
               
               
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 R1 
                  0.0000E+00 
                  4.8176E−02 
                  1.1336E−01 
                 −2.1616E−01 
                 −6.3219E−01  
                  2.8096E+00 
                 −3.4664E+00 
                  1.4561E+00 
               
               
                 R2 
                  0.0000E+00 
                  2.3710E−02 
                 −6.1064E−02 
                 −2.3523E−01 
                 1.7296E+00 
                 −3.4396E+00 
                  3.0863E+00 
                 −1.0747E+00 
               
               
                 R3 
                 −1.5732E−01 
                 −1.4090E−01 
                 −1.0574E−01 
                  1.2132E−01 
                 −6.3311E−02  
                 −1.0786E−01 
                  1.6320E−01 
                 −1.3112E−01 
               
               
                 R4 
                 −2.5615E−02 
                 −1.2466E−01 
                 −2.9180E−02 
                 −3.2167E−02 
                 1.6853E−02 
                 −7.5597E−03 
                 −1.6826E−02 
                  3.6418E−03 
               
               
                 R5 
                 −1.9735E+01 
                 −2.6807E−02 
                  2.1480E−04 
                  1.6336E−02 
                 1.7036E−03 
                 −4.5636E−03 
                 −2.6381E−03 
                 −2.6841E−03 
               
               
                 R6 
                 −6.5791E+00 
                 −7.0638E−02 
                  1.8973E−02 
                  4.3940E−03 
                 1.4338E−03 
                  4.6855E−04 
                 −9.0120E−04 
                 −2.3333E−03 
               
               
                 R7 
                  0.0000E+00 
                 −2.4424E−02 
                 −5.7717E−03 
                 −1.8462E−03 
                 5.3489E−03 
                  3.5746E−03 
                 −1.1063E−03 
                 −4.8688E−04 
               
               
                 R8 
                  0.0000E+00 
                 −1.2223E−02 
                 −3.0719E−03 
                 −4.9014E−03 
                 4.6555E−03 
                  5.2458E−04 
                  1.2382E−03 
                  2.3139E−04 
               
               
                 R9 
                  0.0000E+00 
                 −3.2948E−02 
                  7.9344E−03 
                  1.7732E−03 
                 −9.3432E−04  
                 −5.0017E−04 
                 −1.2982E−05 
                  5.7721E−05 
               
               
                 R10 
                 −4.1725E+00 
                 −4.0596E−02 
                  2.0591E−02 
                  1.2620E−03 
                 −5.7357E−04  
                 −1.7540E−04 
                 −1.2702E−05 
                  1.3210E−05 
               
               
                 R11 
                  0.0000E+00 
                 −9.4870E−03 
                 −1.5414E−03 
                  1.1897E−03 
                 −2.3764E−05  
                 −1.7204E−05 
                 −1.9893E−06 
                  3.8010E−07 
               
               
                 R12 
                 −6.2216E+00 
                 −2.4251E−02 
                  3.7056E−03 
                 −3.3869E−04 
                 1.0122E−06 
                  2.3760E−06 
                 −4.7271E−08 
                 −1.0718E−08 
               
               
                   
               
            
           
         
       
     
     Table 7 and table 8 show design data of inflexion points and arrest points of respective lens in the camera optical lens  20  according to Embodiment 2 of the present invention. 
     
       
         
           
               
               
               
               
             
               
                   
                 TABLE 7 
               
               
                   
                   
               
               
                   
                 Number of 
                 Inflexion point 
                 Inflexion point 
               
               
                   
                 inflexion points 
                 position 1 
                 position 2 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 P1R1 
                 0 
                 0 
                 0 
               
               
                   
                 P1R2 
                 0 
                 0 
                 0 
               
               
                   
                 P2R1 
                 1 
                 0.525 
                 0 
               
               
                   
                 P2R2 
                 1 
                 0.595 
                 0 
               
               
                   
                 P3R1 
                 1 
                 0.835 
                 0 
               
               
                   
                 P3R2 
                 1 
                 0.675 
                 0 
               
               
                   
                 P4R1 
                 0 
                 0 
                 0 
               
               
                   
                 P4R2 
                 1 
                 0.985 
                 0 
               
               
                   
                 P5R1 
                 1 
                 1.585 
                 0 
               
               
                   
                 P5R2 
                 1 
                 1.005 
                 0 
               
               
                   
                 P6R1 
                 2 
                 1.525 
                 2.075 
               
               
                   
                 P6R2 
                 1 
                 0.785 
                 0 
               
               
                   
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                   
                 TABLE 8 
               
               
                   
                   
               
               
                   
                 Number of arrest points 
                 Arrest point position 1 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 P1R1 
                 0 
                 0 
               
               
                   
                 P1R2 
                 0 
                 0 
               
               
                   
                 P2R1 
                 1 
                 0.825 
               
               
                   
                 P2R2 
                 1 
                 0.905 
               
               
                   
                 P3R1 
                 1 
                 1.065 
               
               
                   
                 P3R2 
                 1 
                 1.135 
               
               
                   
                 P4R1 
                 0 
                 0 
               
               
                   
                 P4R2 
                 1 
                 1.185 
               
               
                   
                 P5R1 
                 0 
                 0 
               
               
                   
                 P5R2 
                 1 
                 1.785 
               
               
                   
                 P6R1 
                 0 
                 0 
               
               
                   
                 P6R2 
                 1 
                 2.205 
               
               
                   
                   
               
            
           
         
       
     
       FIG. 6  and  FIG. 7  respectively illustrate a longitudinal aberration and a lateral color of light with wavelengths of 470 nm, 550 nm and 650 nm after passing the camera optical lens  20  according to Embodiment 2.  FIG. 8  illustrates afield curvature and a distortion of light with a wavelength of 550 nm after passing the camera optical lens  10  according to Embodiment 2, in which afield curvature S is afield curvature in a sagittal direction and T is a field curvature in a tangential direction. 
     As shown in Table 13, Embodiment 2 satisfies the various conditions. 
     In this embodiment, the entrance pupil diameter of the camera optical lens is 1.801 mm. The image height of 1.0H is 3.284 mm. The FOV is 80.33. 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. 
     Tables 9 and 10 show design data of a camera optical lens  30  in Embodiment 3 of the present invention. 
     
       
         
           
               
               
               
               
               
             
               
                   
                 TABLE 9 
               
               
                   
                   
               
               
                   
                 R 
                 d 
                 nd 
                 νd 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
               
            
               
                 S1 
                 ∞ 
                 d0= 
                 −0.050 
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
            
               
                 R1 
                 3.920 
                 d1= 
                 0.276 
                 nd1 
                 1.5449 
                 ν1 
                 55.93 
               
               
                 R2 
                 5.272 
                 d2= 
                 0.030 
               
               
                 R3 
                 1.774 
                 d3= 
                 0.250 
                 nd2 
                 1.6510 
                 ν2 
                 21.51 
               
               
                 R4 
                 1.673 
                 d4= 
                 0.200 
               
               
                 R5 
                 7.080 
                 d5= 
                 0.240 
                 nd3 
                 1.6713 
                 ν3 
                 19.24 
               
               
                 R6 
                 3.326 
                 d6= 
                 0.045 
               
               
                 R7 
                 2.740 
                 d7= 
                 0.561 
                 nd4 
                 1.5439 
                 ν4 
                 55.95 
               
               
                 R8 
                 −7.070 
                 d8= 
                 1.072 
               
               
                 R9 
                 −8.982 
                 d9= 
                 0.532 
                 nd5 
                 1.5449 
                 ν5 
                 55.93 
               
               
                 R10 
                 −1.103 
                 d10= 
                 0.317 
               
               
                 R11 
                 −18.934 
                 d11= 
                 0.410 
                 nd6 
                 1.5449 
                 ν6 
                 55.93 
               
               
                 R12 
                 1.117 
                 d12= 
                 1.047 
               
               
                 R13 
                 ∞ 
                 d13= 
                 0.210 
                 ndg 
                 1.5168 
                 νg 
                 64.17 
               
               
                 R14 
                 ∞ 
                 d14= 
                 0.100 
               
               
                   
               
            
           
         
       
     
     Table 10 shows aspherical surface data of each lens of the camera optical lens  30  in Embodiment 3 of the present invention. 
     
       
         
           
               
               
               
             
               
                   
                 TABLE 10 
               
             
            
               
                   
                   
               
               
                   
                 Conic 
                   
               
               
                   
                 coefficient 
                 Aspherical surface coefficients 
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                   
                 k 
                 A4 
                 A6 
                 A8 
                 A10 
                 A12 
                 A14 
                 A16 
               
               
                   
                   
               
            
           
           
               
               
               
               
               
               
               
               
               
            
               
                 R1 
                 −6.5073E−01 
                  5.8360E−02 
                  1.1750E−01 
                 −2.2393E−01 
                 −6.3614E−01 
                  2.7976E+00 
                 −3.4987E+00 
                 1.5031E+00 
               
               
                 R2 
                 −1.0039E+00 
                  6.8186E−02 
                 −8.3361E−02 
                 −2.9510E−01 
                  1.8503E+00 
                 −3.8668E+00 
                  3.6863E+00 
                 −1.3420E+00  
               
               
                 R3 
                 −1.9500E−01 
                 −1.4525E−01 
                 −1.0357E−01 
                  1.2689E−01 
                 −6.2696E−02 
                 −1.2048E−01 
                  1.6302E−01 
                 −9.7454E−02  
               
               
                 R4 
                 −6.6794E−01 
                 −1.5410E−01 
                 −2.8416E−02 
                 −2.1314E−02 
                  1.9798E−02 
                 −1.7376E−02 
                 −2.0442E−02 
                 1.2450E−02 
               
               
                 R5 
                 −5.4021E+01 
                 −3.0924E−02 
                 −4.7035E−02 
                 −1.7136E−02 
                 −5.3923E−03 
                  3.1645E−03 
                  4.1749E−03 
                 −9.6304E−03  
               
               
                 R6 
                 −3.8553E+00 
                 −5.5491E−02 
                 −8.5767E−03 
                 −7.4896E−04 
                  2.0191E−03 
                  2.8885E−04 
                 −2.8665E−03 
                 −6.7581E−04  
               
               
                 R7 
                 −4.4358E+00 
                 −3.2850E−02 
                  8.2787E−03 
                 −2.5073E−03 
                  1.2729E−03 
                  1.1800E−03 
                 −1.3090E−03 
                 2.8726E−04 
               
               
                 R8 
                 −2.6174E+00 
                 −3.1403E−02 
                 −9.3213E−03 
                 −3.2872E−03 
                  4.3878E−03 
                 −1.8952E−04 
                  4.9754E−04 
                 1.8452E−04 
               
               
                 R9 
                 −9.0987E−01 
                 −2.6983E−02 
                  7.5245E−03 
                  2.6060E−03 
                 −7.6612E−04 
                 −5.9665E−04 
                 −7.1511E−05 
                 7.5159E−05 
               
               
                 R10 
                 −4.0797E+00 
                 −4.1012E−02 
                  2.5625E−02 
                  2.3198E−03 
                 −6.9856E−04 
                 −3.0522E−04 
                 −4.4670E−05 
                 2.5926E−05 
               
               
                 R11 
                  0.0000E+00 
                 −1.0801E−02 
                 −1.9210E−03 
                  1.2053E−03 
                 −1.3613E−05 
                 −1.6906E−05 
                 −2.0510E−06 
                 3.6486E−07 
               
               
                 R12 
                 −5.8386E+00 
                 −2.4302E−02 
                  3.7634E−03 
                 −3.4838E−04 
                 −1.4537E−06 
                  2.3110E−06 
                 −1.8974E−08 
                 −1.1799E−08  
               
               
                   
               
            
           
         
       
     
     Table 11 and table 12 show Embodiment 3 design data of inflexion points and arrest points of respective lens in the camera optical lens  30  according to Embodiment 3 of the present invention. 
     
       
         
           
               
               
               
               
             
               
                   
                 TABLE 11 
               
               
                   
                   
               
               
                   
                 Number of 
                 Inflexion point 
                 Inflexion point 
               
               
                   
                 inflexion points 
                 position 1 
                 position 2 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
               
            
               
                   
                 P1R1 
                 0 
                 0 
                 0 
               
               
                   
                 P1R2 
                 0 
                 0 
                 0 
               
               
                   
                 P2R1 
                 1 
                 0.535 
                 0 
               
               
                   
                 P2R2 
                 1 
                 0.545 
                 0 
               
               
                   
                 P3R1 
                 1 
                 0.415 
                 0 
               
               
                   
                 P3R2 
                 1 
                 0.595 
                 0 
               
               
                   
                 P4R1 
                 1 
                 1.085 
                 0 
               
               
                   
                 P4R2 
                 1 
                 1.115 
                 0 
               
               
                   
                 P5R1 
                 1 
                 1.575 
                 0 
               
               
                   
                 P5R2 
                 1 
                 0.925 
                 0 
               
               
                   
                 P6R1 
                 2 
                 1.565 
                 2.085 
               
               
                   
                 P6R2 
                 1 
                 0.795 
                 0 
               
               
                   
                   
               
            
           
         
       
     
     
       
         
           
               
               
               
             
               
                   
                 TABLE 12 
               
               
                   
                   
               
               
                   
                 Number of arrest points 
                 Arrest point position 1 
               
               
                   
                   
               
             
            
               
                   
               
            
           
           
               
               
               
               
            
               
                   
                 P1R1 
                 0 
                 0 
               
               
                   
                 P1R2 
                 0 
                 0 
               
               
                   
                 P2R1 
                 1 
                 0.835 
               
               
                   
                 P2R2 
                 1 
                 0.855 
               
               
                   
                 P3R1 
                 1 
                 0.655 
               
               
                   
                 P3R2 
                 1 
                 0.965 
               
               
                   
                 P4R1 
                 0 
                 0 
               
               
                   
                 P4R2 
                 1 
                 1.305 
               
               
                   
                 P5R1 
                 0 
                 0 
               
               
                   
                 P5R2 
                 1 
                 1.625 
               
               
                   
                 P6R1 
                 0 
                 0 
               
               
                   
                 P6R2 
                 1 
                 2.175 
               
               
                   
                   
               
            
           
         
       
     
       FIG. 10  and  FIG. 11  respectively illustrate a longitudinal aberration and a lateral color of light with wavelengths of 470 nm, 550 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 550 nm after passing the camera optical lens  30  according to Embodiment 3, in which a field curvature S is a field curvature in a sagittal direction and T is a field curvature in a tangential direction. 
     Table 13 in the following lists values corresponding to the respective conditions in this embodiment in order to satisfy the above conditions. 
     In this embodiment, the entrance pupil diameter of the camera optical lens is 1.766 mm. The image height of 1.0H is 3.284 mm. The FOV is 81.11°. 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 
                 3.638 
                 3.781 
                 3.779 
               
               
                 f1 
                 14.586 
                 20.794 
                 26.071 
               
               
                 f2 
                 −175.000 
                 −200.013 
                 −2000.000 
               
               
                 f3 
                 −10.128 
                 −12.033 
                 −9.488 
               
               
                 f4 
                 4.085 
                 4.011 
                 3.692 
               
               
                 f5 
                 2.374 
                 2.231 
                 2.244 
               
               
                 f6 
                 −2.051 
                 −1.930 
                 −1.915 
               
               
                 f12 
                 14.924 
                 21.940 
                 24.910 
               
               
                 F 
                 2.04 
                 2.10 
                 2.14 
               
               
                 f1/f 
                 4.01 
                 5.50 
                 6.90 
               
               
                 R5/d5 
                 16.71 
                 10.10 
                 29.50 
               
               
                   
               
            
           
         
       
     
     It is to be understood, however, that even though numerous characteristics and advantages of the present exemplary embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms where the appended claims are expressed.