Camera Optical Lens

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority benefit of Chinese Patent Applications Ser. No. 201711151186.0 and Ser. No. 201711151181.8 filed on Nov. 18, 2017, the entire content of which is incorporated herein by reference.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to a camera optical lens suitable for handheld devices such as smart phones and digital cameras and imaging devices.

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 the photosensitive devices of general camera lens are no other 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 shrink, coupled with the current development trend of electronic products being that their functions should be better and their shape should be thin and small, miniature camera lens with good imaging quality therefor has 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. And, with the development of technology and the increase of the diverse demands of users, and under this circumstances that the pixel area of photosensitive devices is shrinking steadily and the requirement of the system for the imaging quality is improving constantly, the five-piece, six-piece and seven-piece lens structure gradually appear in lens design. There is an urgent need for ultra-thin wide-angle camera lenses which have good optical characteristics and the chromatic aberration of which is fully corrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood with reference to the following drawings. The components in the drawing are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordance with a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lens shown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG. 1;

FIG. 4 presents a schematic diagram of the field curvature and distortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordance with a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lens shown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown in FIG. 5;

FIG. 8 presents the field curvature and distortion of the camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a camera optical lens in accordance with a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lens shown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown in FIG. 9;

FIG. 12 presents the field curvature and distortion of the camera optical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail with reference to several exemplary embodiments. To make the technical problems to be solved, technical solutions and beneficial effects of the present disclosure more apparent, the present disclosure is described in further detail together with the figure and the embodiments. It should be understood the specific embodiments described hereby is only to explain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera optical lens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of the present invention, the camera optical lens 10 comprises 6 lenses. Specifically, from the object side to the 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 element like optical filter GF can be arranged between the sixth lens L6 and the image surface Si. The first lens L1 is made of glass 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 glass material, and the sixth lens L6 is made of plastic material.

Here, the focal length of the whole camera optical lens 10 is defined as f, the focal length of the first lens is defined as f1. The camera optical lens 10 further satisfies the following condition: 0.5 custom-character f1/f10. Condition 0.5f1/f10 fixes the positive refractive power of the first lens L1. If the upper limit of the set value is exceeded, although it benefits the ultra-thin development of lenses, but the positive refractive power of the first lens L1 will be too strong, problem like aberration is difficult to be corrected, and it is also unfavorable for wide-angle development of lens. On the contrary, if the lower limit of the set value is exceeded, the positive refractive power of the first lens L1 becomes too weak, it is then difficult to develop ultra-thin lenses. Preferably, the following condition shall be satisfied, 0.7 custom-character f1/f1.0.

The refractive power of the first lens L1 is defined as n1. Here the following condition should satisfied: 1.7 custom-character n12.2. This condition fixes the refractive power of the first lens L1, and refractive power within this range benefits the ultra-thin development of lenses, and it also benefits the correction of aberration. Preferably, the following condition shall be satisfied, 1.7n11.9.

The refractive power of the fifth lens L5 is defined as n5. Here the following condition should satisfied: 1.7 custom-character n52.2. This condition fixes the refractive power of the fifth lens L5, and refractive power within this range benefits the ultra-thin development of lenses, and it also benefits the correction of aberration. Preferably, the following condition shall be satisfied, 1.7n51.9.

The thickness on-axis of the first lens L1 is defined as d1, and the total optical length of the camera optical lens 10 is defined as TTL. The following condition: 0.052 custom-character d1/TTL0.2 should be satisfied. This condition fixes the ratio between the thickness on-axis of the first lens L1 and the total optical length TTL. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.07d1/TTL0.1 shall be satisfied.

In this embodiment, the first lens L1 has a positive refractive power with a convex object side surface relative to the proximal axis and a concave image side surface relative to the proximal axis.

The curvature radius of the object side surface of the first lens L1 is defined as R1, the curvature radius of the image side surface of the first lens L1 is defined as R2. The camera optical lens 10 further satisfies the following condition: −3.65 custom-character (R1+R2)/(R1−R2)−1.19, which fixes the shape of the first lens L1, when the value is beyond this range, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the condition −2.28 custom-character (R1+122)/(R1−R2)−1.48 shall be satisfied.

The thickness on-axis of the first lens L1 is defined as d1. The following condition: 0.22 custom-character d10.68 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.35d10.55 shall be satisfied.

In this embodiment, the second lens L2 has a negative refractive power with a convex object side surface and a concave image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the second lens L2 is f2. The following condition should be satisfied: −4.58 custom-character f2/f−1.46. When the condition is satisfied, the negative refractive power of the second lens L2 is controlled within reasonable scope, the spherical aberration caused by the first lens L1 which has positive refractive power and the field curvature of the system then can be reasonably and effectively balanced. Preferably, the condition −2.87 custom-character f2/f−1.82 should be satisfied.

The curvature radius of the object side surface of the second lens L2 is defined as R3, the curvature radius of the image side surface of the second lens L2 is defined as R4. The following condition should be satisfied: 1.34 custom-character (R3+R4)/(R3−R4)4.35, which fixes the shape of the second lens L2 and can effectively correct aberration of the camera optical lens. Preferably, the following condition shall be satisfied, 2.14(R3+R4)/(R3−R4)3.48.

The thickness on-axis of the second lens L2 is defined as d3. The following condition: 0.12 custom-character d30.38 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.2d30.3 shall be satisfied.

In this embodiment, the third lens L3 has a positive refractive power with a concave object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the third lens L3 is f3. The following condition should be satisfied: 1.13 custom-character f3/f3.86, by which the field curvature of the system then can be reasonably and effectively balanced. Preferably, the condition 1.8f3/f3.09 should be satisfied.

The curvature radius of the object side surface of the third lens L3 is defined as R5, the curvature radius of the image side surface of the third lens L3 is defined as R6. The following condition should be satisfied: 0.75 custom-character (R5+R6)/(R5−R6)2.48, which is beneficial for the shaping of the third lens L3, and bad shaping and stress generation due to extra large curvature of surface of the third lens L3 can be avoided. Preferably, the following condition shall be satisfied, 1.2(R5+R6)/(R5−R6)1.98.

The thickness on-axis of the third lens L3 is defined as d5. The following condition: 0.35 custom-character d51.13 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.56d50.91 shall be satisfied.

In this embodiment, the fourth lens L4 has a negative refractive power with a concave object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fourth lens L4 is f4. The following condition should be satisfied: −3.79 custom-character f4/f−1.21, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition −2.37f4/f−1.51 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 is defined as R7, the curvature radius of the image side surface of the fourth lens L4 is defined as R8. The following condition should be satisfied: −3.71 custom-character (R7+R8)/(R7−R8)−1.20, by which, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −2.32 (R7+R8)/(R7−R8)−1.51.

The thickness on-axis of the fourth lens L4 is defined as d7. The following condition: 0.15 custom-character d70.48 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.24d70.38 shall be satisfied.

In this embodiment, the fifth lens L5 has a positive refractive power with a convex object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the fifth lens L5 is f5. The following condition should be satisfied: 0.49 custom-character f5/f1.54, which can effectively smooth the light angles of the camera and reduce the tolerance sensitivity. Preferably, the condition 0.78f5/f1.23 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 is defined as R9, the curvature radius of the image side surface of the fifth lens L5 is defined as R10. The following condition should be satisfied: −1.51 custom-character (R9+R10)/(R9−R10)−0.37, by which, the shape of the fifth lens L5 is fixed, further, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −0.94 custom-character (R9+R10)/(R9−R10)−0.47.

The thickness on-axis of the fifth lens L5 is defined as d9. The following condition: 0.26 custom-character d90.79 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.42d90.63 shall be satisfied.

In this embodiment, the sixth lens L6 has a negative refractive power with a concave object side surface and a convex image side surface relative to the proximal axis.

The focal length of the whole camera optical lens 10 is f, the focal length of the sixth lens L6 is f6. The following condition should be satisfied: −1.60 custom-character f6/f−0.52, which can effectively reduce the sensitivity of lens group used in camera and further enhance the imaging quality. Preferably, the condition −1.00f6/f−0.65 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 is defined as R11, the curvature radius of the image side surface of the sixth lens L6 is defined as R12. The following condition should be satisfied: −2.83 custom-character (R11+1212)/(R11−R12)−0.91, by which, the shape of the sixth lens L6 is fixed, further, with the development into the direction of ultra-thin and wide-angle lenses, problem like aberration of the off-axis picture angle is difficult to be corrected. Preferably, the following condition shall be satisfied, −1.77 custom-character (R11+R12)/(R11−R12)−1.14.

The thickness on-axis of the sixth lens L6 is defined as d11. The following condition: 0.13 custom-character d110.44 should be satisfied. When the condition is satisfied, it is beneficial for realization of the ultra-thin lens. Preferably, the condition 0.20d110.36 shall be satisfied.

The focal length of the whole camera optical lens 10 is f, the combined focal length of the first lens L1 and the second lens L2 is f12. The following condition should be satisfied: 0.61 custom-character f12/f1.87, which can effectively avoid the aberration and field curvature of the camera optical lens, and can suppress the rear focal length for realizing the ultra-thin lens. Preferably, the condition 0.97f12/f1.49 should be satisfied.

In this embodiment, the total optical length TTL of the camera optical lens 10 is less than or equal to 5.72 mm, it is beneficial for the realization of ultra-thin lenses. Preferably, the total optical length TTL of the camera optical lens 10 is less than or equal to 5.46 mm.

In this embodiment, the aperture F number of the camera optical lens 10 is less than or equal to 2.27. A large aperture has better imaging performance. Preferably, the aperture F number of the camera optical lens 10 is less than or equal to 2.22.

With such design, the total optical length TTL of the whole camera optical lens 10 can be made as short as possible, thus the miniaturization characteristics can be maintained.

In the following, an example will be used to describe the camera optical lens 10 of the present invention. The symbols recorded in each example are as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surface of the first lens L1 to the image surface).

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 the first embodiment of the present invention is shown in the following, the unit of the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the first embodiment of the present invention is shown in the tables 1 and 2.

TABLE 1

R
d
nd
νd

S1
∞
d0=
−0.200

R1
1.941
d1=
0.455
nd1
1.7130
ν1
53.87

R2
6.652
d2=
0.046

R3
6.549
d3=
0.253
nd2
1.6448
ν2
22.44

R4
3.189
d4=
0.391

R5
−18.957
d5=
0.705
nd3
1.5439
ν3
55.95

R6
−4.656
d6=
0.328

R7
−3.604
d7=
0.317
nd4
1.6355
ν4
23.97

R8
−12.033
d8=
0.316

R9
3.816
d9=
0.524
nd5
1.7130
ν5
53.87

R10
−13.510
d10=
0.830

R11
−1.491
d11=
0.296
nd6
1.5352
ν6
56.12

R12
−9.179
d12=
0.350

R15
∞
d13=
0.210
ndg
1.5168
νg
64.17

R16
∞
d14=
0.176

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvature radius in case of lens;

R1: The curvature radius of the object side surface of the first lens L1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lens L2;

R4: The curvature radius of the image side surface of the second lens L2;

R5: The curvature radius of the object side surface of the third lens L3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lens L4;

R8: The curvature radius of the image side surface of the fourth lens L4;

R9: The curvature radius of the object side surface of the fifth lens L5;

R10: The curvature radius of the image side surface of the fifth lens L5;

R11: The curvature radius of the object side surface of the sixth lens L6;

R12: The curvature radius of the image side surface of the sixth lens L6;

R13: The curvature radius of the object side surface of the optical filter GF;

R14: The curvature radius of the image side surface of the optical filter GF;

d: The thickness on-axis of the lens and the distance on-axis between the lens;

d0: The distance on-axis from aperture S1 to the object side surface of the first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lens L1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lens L2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lens L3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lens L4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lens L5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lens L6 to the object side surface of the optical filter GF;

d13: The thickness on-axis of the optical filter GF;

d14: The distance on-axis from the image side surface to the image surface of the optical filter GF;

nd: The refractive power of the d line;

nd1: The refractive power of the d line of the first lens L1;

nd2: The refractive power of the d line of the second lens L2;

nd3: The refractive power of the d line of the third lens L3;

nd4: The refractive power of the d line of the fourth lens L4;

nd5: The refractive power of the d line of the fifth lens L5;

nd6: The refractive power of the d line of the sixth lens L6;

ndg: The refractive power of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens 10 in the embodiment 1 of the present invention.

TABLE 2

Conic Index
Aspherical Surface Index

k
A4
A6
A8
A10
A12
A14
A16

R1
−4.5185E−01
3.0060E−03
−6.2995E−03
−1.8916E−02
7.0816E−04
−9.9368E−03
4.7159E−03
−7.6611E−03

R2
1.5355E+01
−1.2761E−01
9.0204E−02
−3.6394E−02
−3.5100E−02
7.0592E−03
4.7500E−03
−3.2906E−03

R3
3.1052E+01
−1.5256E−01
1.9028E−01
−5.5824E−02
−2.7038E−02
5.4567E−03
9.0849E−03
−5.1562E−03

R4
5.5428E+00
−3.3790E−02
7.3255E−02
−2.6578E−02
2.0168E−02
−3.2721E−02
4.2103E−02
−2.1622E−02

R5
0.0000E+00
−6.8809E−02
−1.5363E−02
−1.3862E−02
−1.1942E−02
3.4038E−02
−1.8936E−02
1.8443E−02

R6
−2.4305E+01
−7.4460E−02
−1.9137E−02
1.0152E−02
6.5766E−03
−1.2850E−02
9.4210E−03
−1.1724E−03

R7
−2.9537E+01
−1.2693E−01
7.1327E−02
−1.3760E−02
−2.1754E−04
2.5506E−03
−1.2825E−03
9.4631E−05

R8
−7.8418E+00
−1.2110E−01
5.9871E−02
−1.2133E−03
−2.1260E−03
−3.1964E−04
1.1448E−04
−1.3927E−06

R9
−1.1238E+00
−6.0155E−02
7.4847E−04
6.0671E−04
−9.1888E−04
5.8063E−04
−1.9426E−04
2.0449E−05

R10
0.0000E+00
2.7076E−02
−2.8764E−02
8.9405E−03
−1.5894E−03
1.6865E−04
−1.6725E−05
1.0829E−06

R11
−1.7234E+00
2.2091E−02
−1.5703E−02
5.8171E−03
−9.9035E−04
8.9637E−05
−4.2319E−06
8.3989E−08

R12
−1.5768E+01
4.6159E−03
−8.3231E−03
2.6504E−03
−5.1177E−04
5.2726E−05
−2.6549E−06
5.9698E−08

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 are aspheric surface indexes.

IH: Image height

y=(x²/R)/[1+{1−(k+1)(x²/R²)}^1/2]+A4x⁴+A6x⁶+A8x⁸+A10x¹⁰+A12x¹²+A14x¹⁴+A16x¹ (1)

For convenience, the 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 the inflexion points and the arrest point design data of the camera optical lens 10 lens in embodiment 1 of the present invention. In which, P1R1 and P1R2 represent respectively the object side surface and image side surface of the first lens L1, P2R1 and P2R2 represent respectively the object side surface and image side surface of the second lens L2, P3R1 and P3R2 represent respectively the object side surface and image side surface of the third lens L3, P4R1 and P4R2 represent respectively the object side surface and image side surface of the fourth lens L4, P5R1 and P5R2 represent respectively the object side surface and image side surface of the fifth lens L5, P6R1 and P6R2 represent respectively the object side surface and image side surface of the sixth lens L6. The data in the column named “inflexion point position” are the vertical distances from the 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” are the vertical distances from the arrest points arranged on each lens surface to the optic axis of the camera optical lens 10.

TABLE 3

Inflexion point
Inflexion point
Inflexion point

number
position 1
position 2

P1R1
1
0.825

P1R2
1
0.375

P2R1
0

P2R2
0

P3R1
1
0.925

P3R2
1
1.085

P4R1
2
1.065
1.255

P4R2
2
1.015
1.545

P5R1
1
0.615

P5R2
0

P6R1
1
1.565

P6R2
1
2.605

TABLE 4

Arrest point number
Arrest point position 1

P1R1
0

P1R2
1
0.685

P2R1
0

P2R2
0

P3R1
0

P3R2
0

P4R1
0

P4R2
0

P5R1
1
1.055

P5R2
0

P6R1
1
2.575

P6R2
1
2.955

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486 nm, 588 nm and 656 nm passes the camera optical lens 10 in the first embodiment. FIG. 4 shows the field curvature and distortion schematic diagrams after light with a wavelength of 588 nm passes the camera optical lens 10 in the first embodiment, the field curvature S in FIG. 4 is a field curvature in the sagittal direction, T is a field curvature in the meridian direction.

Table 13 shows the various values of the embodiments 1, 2 and 3 and the values corresponding with the parameters which are already specified in the conditions.

As shown in Table 13, the first embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 1.97 mm, the full vision field image height is 3.928 mm, the vision field angle in the diagonal direction is 83.71°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has 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 described.

Table 5 and table 6 show the design data of the camera optical lens 20 in embodiment 2 of the present invention.

TABLE 5

R
d
nd
νd

S1
∞
d0=
−0.200

R1
1.967
d1=
0.446
nd1
1.7130
ν1
53.87

R2
7.002
d2=
0.049

R3
6.767
d3=
0.253
nd2
1.6448
ν2
22.44

R4
3.210
d4=
0.382

R5
−20.812
d5=
0.739
nd3
1.5439
ν3
55.95

R6
−4.350
d6=
0.329

R7
−3.553
d7=
0.300
nd4
1.6355
ν4
23.97

R8
−11.988
d8=
0.318

R9
3.730
d9=
0.524
nd5
1.7410
ν5
52.64

R10
−24.794
d10=
0.842

R11
−1.508
d11=
0.253
nd6
1.5352
ν6
56.12

R12
−9.747
d12=
0.350

R15
∞
d13=
0.210
ndg
1.5168
νg
64.17

R16
∞
d14=
0.174

Table 6 shows the aspherical surface data of each lens of the camera optical lens 20 in embodiment 2 of the present invention.

TABLE 6

Conic Index
Aspherical Surface Index

k
A4
A6
A8
A10
A12
A14
A16

R1
−5.4758E−01
1.0688E−03
−6.7911E−03
−2.2719E−02
−3.0922E−03
−8.8322E−03
7.0878E−03
−9.1276E−03

R2
1.3221E+01
−1.2802E−01
8.6096E−02
−3.8063E−02
−3.3803E−02
9.1383E−03
4.4829E−03
−3.8983E−03

R3
3.0251E+01
−1.4948E−01
1.9441E−01
−5.8376E−02
−2.6360E−02
8.4456E−03
1.2310E−02
−7.5224E−03

R4
5.6783E+00
−3.2006E−02
7.4453E−02
−2.4600E−02
1.8834E−02
−3.4823E−02
4.1816E−02
−1.8035E−02

R5
0.0000E+00
−6.4834E−02
−1.4389E−02
−1.4671E−02
−1.1134E−02
3.5598E−02
−1.7506E−02
1.8497E−02

R6
−2.9538E+01
−7.8540E−02
−1.7887E−02
1.1642E−02
6.4964E−03
−1.3429E−02
9.2039E−03
−1.0794E−03

R7
−3.3653E+01
−1.2390E−01
7.1452E−02
−1.3840E−02
−2.8103E−04
2.5250E−03
−1.2736E−03
1.1073E−04

R8
−2.4442E+01
−1.2003E−01
5.9973E−02
−1.2786E−03
−2.1424E−03
−3.2468E−04
1.1314E−04
−1.6961E−06

R9
−2.0973E+00
−6.2094E−02
1.1198E−03
4.5414E−04
−9.4257E−04
5.9386E−04
−1.9157E−04
1.9062E−05

R10
0.0000E+00
2.1893E−02
−2.8054E−02
8.9453E−03
−1.5935E−03
1.6831E−04
−1.6467E−05
1.1651E−06

R11
−1.7591E+00
2.2223E−02
−1.5700E−02
5.8167E−03
−9.9041E−04
8.9635E−05
−4.2322E−06
8.4220E−08

R12
−1.3029E+01
4.8779E−03
−8.2647E−03
2.6549E−03
−5.1157E−04
5.2727E−05
−2.6555E−06
5.9625E−08

Table 7 and table 8 show the inflexion points and the arrest point design data of the camera optical lens 20 lens in embodiment 2 of the present invention.

TABLE 7

Inflexion point
Inflexion point
Inflexion point

number
position 1
position 2

P1R1
1
0.805

P1R2
1
0.355

P2R1
0

P2R2
0

P3R1
1
0.915

P3R2
1
1.095

P4R1
2
1.035
1.285

P4R2
2
1.005
1.525

P5R1
1
0.595

P5R2
0

P6R1
1
1.555

P6R2
1
2.585

TABLE 8

Arrest point number
Arrest point position 1

P1R1
0

P1R2
1
0.645

P2R1
0

P2R2
0

P3R1
0

P3R2
0

P4R1
0

P4R2
0

P5R1
1
1.035

P5R2
0

P6R1
1
2.555

P6R2
1
2.935

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486 nm, 588 nm and 656 nm passes the camera optical lens 20 in the second embodiment. FIG. 8 shows the field curvature and distortion schematic diagrams after light with a wavelength of 588 nm passes the camera optical lens 20 in the second embodiment.

As shown in Table 13, the second embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 1.954 mm, the full vision field image height is 3.928 mm, the vision field angle in the diagonal direction is 84.16°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

Embodiment 3

Embodiment 3 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 described.

Table 9 and table 10 show the design data of the camera optical lens 30 in embodiment 3 of the present invention.

TABLE 9

R
d
nd
νd

S1
∞
d0=
−0.200

R1
1.993
d1=
0.437
nd1
1.7410
ν1
52.64

R2
6.889
d2=
0.047

R3
7.058
d3=
0.246
nd2
1.6448
ν2
22.44

R4
3.213
d4=
0.382

R5
−21.443
d5=
0.754
nd3
1.5439
ν3
55.95

R6
−4.270
d6=
0.326

R7
−3.478
d7=
0.304
nd4
1.6355
ν4
23.97

R8
−12.097
d8=
0.326

R9
3.686
d9=
0.526
nd5
1.7410
ν5
52.64

R10
−26.489
d10=
0.836

R11
−1.505
d11=
0.262
nd6
1.5352
ν6
56.12

R12
−8.796
d12=
0.350

R15
∞
d13=
0.210
ndg
1.5168
νg
64.17

R16
∞
d14=
0.165

Table 10 shows the aspherical surface data of each lens of the camera optical lens 30 in embodiment 3 of the present invention.

TABLE 10

Conic Index
Aspherical Surface Index

k
A4
A6
A8
A10
A12
A14
A16

R1
−5.4739E−01
5.0147E−04
−6.8324E−03
−2.3497E−02
−4.2466E−03
−8.3140E−03
8.1663E−03
−1.0044E−02

R2
1.3168E+01
−1.2736E−01
8.4639E−02
−3.8075E−02
−3.3065E−02
9.1287E−03
3.7696E−03
−3.7679E−03

R3
3.1921E+01
−1.4871E−01
1.9752E−01
−5.7311E−02
−2.7017E−02
8.3355E−03
1.2851E−02
−8.1207E−03

R4
5.7595E+00
−2.9041E−02
7.4000E−02
−2.5261E−02
1.8383E−02
−3.4788E−02
4.1910E−02
−1.8290E−02

R5
0.0000E+00
−6.3622E−02
−1.4976E−02
−1.5067E−02
−1.1804E−02
3.5787E−02
−1.7509E−02
1.8875E−02

R6
−2.8969E+01
−7.8071E−02
−1.7736E−02
1.1707E−02
6.5390E−03
−1.3478E−02
9.1582E−03
−1.0926E−03

R7
−3.1845E+01
−1.2452E−01
7.1637E−02
−1.3787E−02
−2.6973E−04
2.5160E−03
−1.2755E−03
1.0993E−04

R8
−3.5975E+01
−1.2014E−01
5.9895E−02
−1.2821E−03
−2.1414E−03
−3.2226E−04
1.1404E−04
−1.6530E−06

R9
−2.2251E+00
−6.1851E−02
9.9233E−04
5.0690E−04
−9.3694E−04
5.9735E−04
−1.9130E−04
1.8700E−05

R10
0.0000E+00
2.0557E−02
−2.7882E−02
8.9566E−03
−1.5926E−03
1.6790E−04
−1.6536E−05
1.1553E−06

R11
−1.7591E+00
2.2183E−02
−1.5705E−02
5.8164E−03
−9.9042E−04
8.9635E−05
−4.2321E−06
8.4290E−08

R12
−1.2574E+01
4.8907E−03
−8.2606E−03
2.6550E−03
−5.1157E−04
5.2724E−05
−2.6558E−06
5.9631E−08

Table 11 and table 12 show the inflexion points and the arrest point design data of the camera optical lens 30 lens in embodiment 3 of the present invention.

TABLE 11

Inflexion point
Inflexion point
Inflexion point

number
position 1
position 2

P1R1
1
0.795

P1R2
1
0.355

P2R1
0

P2R2
0

P3R1
1
0.915

P3R2
1
1.095

P4R1
2
1.035
1.285

P4R2
2
1.005
1.535

P5R1
1
0.605

P5R2
0

P6R1
1
1.555

P6R2
1
2.585

TABLE 12

Arrest point number
Arrest point position 1

P1R1
0

P1R2
1
0.645

P2R1
0

P2R2
0

P3R1
0

P3R2
0

P4R1
0

P4R2
0

P5R1
1
1.035

P5R2
0

P6R1
1
2.565

P6R2
1
2.935

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral color schematic diagrams after light with a wavelength of 486 nm, 588 nm and 656 nm passes the camera optical lens 30 in the third embodiment. FIG. 12 shows the field curvature and distortion schematic diagrams after light with a wavelength of 588 nm passes the camera optical lens 30 in the third embodiment.

As shown in Table 13, the third embodiment satisfies the various conditions.

In this embodiment, the pupil entering diameter of the camera optical lens is 1.948 mm, the full vision field image height is 3.928 mm, the vision field angle in the diagonal direction is 84.35°, it has wide-angle and is ultra-thin, its on-axis and off-axis chromatic aberrations are fully corrected, and it has excellent optical characteristics.

TABLE 13

Embodiment 1
Embodiment 2
Embodiment 3

f
4.335
4.298
4.285

f1
3.695
3.700
3.645

f2
−9.937
−9.742
−9.383

f3
11.155
9.953
9.653

f4
−8.216
−8.058
−7.788

f5
4.226
4.410
4.399

f6
−3.371
−3.369
−3.436

f12
5.277
5.347
5.338

(R1 + R2)/(R1 − R2)
−1.824
−1.781
−1.814

(R3 + R4)/(R3 − R4)
2.899
2.805
2.671

(R5 + R6)/(R5 − R6)
1.651
1.528
1.497

(R7 + R8)/(R7 − R8)
−1.855
−1.842
−1.807

(R9 + R10)/
−0.560
−0.738
−0.756

(R9 − R10)

(R11 + R12)/
−1.388
−1.366
−1.413

(R11 − R12)

f1/f
0.852
0.861
0.851

f2/f
−2.292
−2.266
−2.190

f3/f
2.573
2.316
2.252

f4/f
−1.895
−1.875
−1.817

f5/f
0.975
1.026
1.027

f6/f
−0.778
−0.784
−0.802

f12/f
1.217
1.244
1.246

d1
0.455
0.446
0.437

d3
0.253
0.253
0.246

d5
0.705
0.739
0.754

d7
0.317
0.300
0.304

d9
0.524
0.524
0.526

d11
0.296
0.253
0.262

Fno
2.200
2.200
2.200

TTL
5.198
5.168
5.172

d1/TTL
0.087
0.086
0.084

n1
1.7130
1.7130
1.7410

n2
1.6448
1.6448
1.6448

n3
1.5439
1.5439
1.5439

n4
1.6355
1.6355
1.6355

n5
1.7130
1.7410
1.7410

n6
1.5352
1.5352
1.5352

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.

Number	Date	Country	Kind
201711151181.8	Nov 2017	CN	national
201711151186.0	Nov 2017	CN	national

Camera Optical Lens

Information

Publication Number

Date Filed

Date Published

Inventors

Original Assignees

CPC

International Classifications

Abstract

Description

Claims

Priority Claims (2)