Camera Optical Lens

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

In recent years, with the rise of various smart devices, the demand for miniaturized camera optics has been increasing, and the pixel size of photosensitive devices has shrunk, coupled with the development trend of electronic products with good functions, thin and portable appearance, Therefore, miniaturized imaging optical lenses with good image quality have become the mainstream in the current market. In order to obtain better imaging quality, a multi-piece lenses structure is often used. Moreover, with the development of technology and the increase of diversified needs of users, as the pixel area of the photosensitive device continues to shrink and the system's requirements for image quality continue to increase, the five-element lens structure gradually appears in the lens design. There is an urgent need for a wide-angle imaging lens with excellent optical characteristics, small size, and fully corrected aberrations.

SUMMARY

In the present invention, a cameral optical lens has excellent optical characteristics with large aperture, ultra-thin and wide angle.

According to one aspect of the present invention, a camera optical lens comprises, from an object side to an image side in sequence, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having refractive power, a fourth lens having a positive refractive power, and a fifth lens having a negative refractive power. The camera optical lens satisfies the following conditions: 0.18≤d1/TTL≤0.40, 0.60≤ET1/d1≤1.00, −7.00≤f2/f≤−2.00, and 3.00≤R6/R5≤12.00. f denotes a focal length of the optical camera lens, TTL denotes a total optical length from an object side surface of the first lens of the camera optical lens to an image surface of the camera optical lens along an optical axis, d1 denotes an on-axis thickness of the first lens, ET1 denotes a thickness between two ends of parallel to axis of the first lens; f2 denotes a focal length of the second lens, R5 denotes a central curvature radius of an object side surface of the third lens, and R6 denotes a central curvature radius of an image side surface of the third lens.

As an improvement, the camera optical lens further satisfies the following condition: −1.00≤(R1+R2)/(R1−R2)≤0. R1 denotes a central curvature radius of the object side surface of the first lens, and R2 denotes a central curvature radius of an image side surface of the first lens.

As an improvement, the object side surface of the first lens is convex in a paraxial region, and the first lens has an image side surface being convex in the paraxial region. The camera optical lens further satisfies the following condition: 0.42≤f1/f≤1.68. f1 denotes a focal length of the first lens.

As an improvement, the second lens has an object side surface being convex in a paraxial region and an image side surface being concave in the paraxial region. The camera optical lens further satisfies the following conditions: 1.48≤(R3+R4)/(R3−R4)≤15.87, and 0.01≤d3/TTL≤0.08. R3 denotes a central curvature radius of the object side surface of the second lens, R4 denotes a central curvature radius of the image side surface of the second lens, and d3 denotes an on-axis thickness of the second lens.

As an improvement, the camera optical lens further satisfies the following conditions: −11.06≤f3/f≤313.92, −4.00≤(R5+R6)/(R5−R6)≤−0.79, and 0.02≤d5/TTL≤0.10. f3 denotes a focal length of the third lens and d5 denotes an on-axis thickness of the third lens.

As an improvement, the fourth lens has an object side surface being convex in a paraxial region and an image side surface being convex in the paraxial region. The camera optical lens further satisfies the following conditions: 0.36≤f4/f≤1.43, −0.20≤(R7+R8)/(R7−R8)≤0.71, and 0.06≤d7/TTL≤0.24. f4 denotes a focal length of the fourth lens, R7 denotes a central curvature radius of the object side surface of the fourth lens, R8 denotes a central curvature radius of the image side surface of the fourth lens, and d7 denotes an on-axis thickness of the fourth lens.

As an improvement, the fifth lens has an object side surface being convex in a paraxial region and an image side surface being concave in the paraxial region. The camera optical lens further satisfies the following conditions: −1.77≤f5/f≤−0.38, 0.71≤(R9+R10)/(R9−R10)≤4.58, and 0.03≤d9/TTL≤0.11. f5 denotes a focal length of the fifth lens, R9 denotes a central curvature radius of the object side surface of the fifth lens, R10 denotes a central curvature radius of the image side surface of the fifth lens, and d9 denotes an on-axis thickness of the fifth lens.

As an improvement, the camera optical lens further satisfies the following condition: 0.57≤f12/f≤1.88. f12 denotes a combined focal length of the first lens and the second lens.

As an improvement, the camera optical lens further satisfies the following condition: FOV≥80.30°. FOV denotes a field of view of the camera optical lens in a diagonal direction.

As an improvement, the camera optical lens further satisfies following condition: TTL/IH≤1.46. IH denotes an image height of the camera optical lens, and TTL denotes a total optical length from the object side surface of the first lens of the camera optical lens to an image surface of the camera optical lens along an optical axis.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings, among which:

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;

FIG. 12 is a schematic diagram of a field curvature and a distortion of the camera optical lens shown in FIG. 9.

FIG. 13 is a schematic diagram of a structure of a camera optical lens in accordance with Embodiment 4 of the present invention;

FIG. 14 is a schematic diagram of a longitudinal aberration of the camera optical lens shown in FIG. 13;

FIG. 15 is a schematic diagram of a lateral color of the camera optical lens shown in FIG. 13;

FIG. 16 is a schematic diagram of a field curvature and a distortion of the camera optical lens shown in FIG. 13.

FIG. 17 is a schematic diagram of a structure of a camera optical lens in accordance with Comparative Embodiment;

FIG. 18 is a schematic diagram of a longitudinal aberration of the camera optical lens shown in FIG. 17;

FIG. 19 is a schematic diagram of a lateral color of the camera optical lens shown in FIG. 17; and

FIG. 20 is a schematic diagram of a field curvature and a distortion of the camera optical lens shown in FIG. 17.

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 10 comprises five-piece 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 and a fifth lens L5. Optical elements like optical filter GF can be arranged between the fifth lens L5 and an image surface Si.

The first lens L1 has a positive refractive power. The second lens L2 has a negative refractive power. The third lens L3 has a negative refractive power. The fourth lens L4 has a positive refractive power. The fifth lens L5 has a negative refractive power. In other optional embodiments, a refractive power of each lens may also be made of other options.

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 and the fifth lens L5 is made of plastic material. In other optional embodiments, each lens may also be made of other materials.

A total optical length from an object side surface of the first lens L1 to an image surface S1 of the camera optical lens 10 along an optical axis is defined as TTL. An on-axis thickness of the first lens L1 is defined as d1. The camera optical lens 10 further satisfies the following condition: 0.18≤d1/TTL≤0.40, which specifies a ratio of the on-axis thickness d1 of the first lens L1 to a total optical length TTL of the camera optical lens 10. When the value is within this range, it benefits for reducing the total optical length TTL and thereby realizing an ultra-thin effect.

A thickness between two ends of parallel to optical axis of the first lens is defined as ET1. The following condition is satisfied: 0.60≤ET1/d1≤1.00. The condition defines a ratio of a thickness between two ends of parallel to optical axis of the first lens ET1 to the on-axis thickness d1 of the first lens L1. when the condition is satisfied, it is beneficial for molding and assembling the lens.

A focal length of the camera optical lens 10 is defined as f, and a focal length of the second lens L2 is defined as f2. The camera optical lens 10 further satisfies the following condition: −7.00≤f2/f≤−2.00, which specifies a ratio of the focal length f2 of the second lens L2 to the focal length f of the camera optical lens 10. An amount of the field curvature of the camera optical lens 10 can be effectively balanced, so that an offset amount of the field curvature of a center field lower than 0.01 mm.

A central curvature radius of an object side surface of the third lens L3 is defined as R5, and a central curvature radius of an image side surface of the third lens L3 is defined as R6. The camera optical lens 10 further satisfies the following condition: 3.00≤R5/R6≤12.00, which specifies a shape of the third lens L3. When the value is within this range, it can reduce the deflection of the light and effectively correct a chromatism, so that the chromatism |LC|≤2.5 μm.

A central curvature radius of an object side surface of the first lens L1 is defined as R1, and a central curvature radius of an image side surface of the first lens L1 is defined as R2. The camera optical lens 10 further satisfies the following condition: −1.00≤(R1+R2)/(R1−R2)≤0. This condition reasonably controls a shape of the first lens L1, which specifies a shape of the first lens L1. It is beneficial for correcting astigmatism and distortion of the camera optical lens, so that |Distortion|≤2.0%, and the brightness or saturation can be maintained, with the focal length reasonable distributed.

In the present embodiment, the object side surface of the first lens L1 is convex in a paraxial region and an image side surface of the first lens L1 is convex in the paraxial region. In other optional embodiments, the object side surface and the image side surface of the first lens L1 can also be set to other concave and convex distribution situations.

A focal length of the first lens L1 is defined as f1. The camera optical lens 10 further satisfies the following condition: 0.42≤f1/f≤1.68. Within this range, the first lens has an appropriate positive refractive power, which benefits for reducing an aberration of the camera optical lens 10 and at the same time benefits for developing the ultra-thin and wide-angle lenses. Preferably, the following condition shall be satisfied, 0.68≤f1/f≤1.34.

In the present 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. In other optional embodiments, the object side surface and the image side surface of the first lens L1 can also be set to other concave and convex distribution situations.

A central curvature radius of the object side surface of the second lens L2 is defined as R3, and a central curvature radius of the image side surface of the second lens L2 is defined as R4. The camera optical lens 10 further satisfies the following condition: 1.48≤(R3+R4)/(R3−R4)≤15.87, which specifies a shape of the second lens L2. When the value is within this range, as the camera optical lens 10 develops toward the ultra-thin and wide-angle lenses, it benefits for correcting the problem of an on-axis chromatic aberration. Preferably, the following condition shall be satisfied, 2.37≤(R3+R4)/(R3−R4)≤12.69.

An on-axis thickness of the second lens L2 is defined as d3. The total optical length from the object side surface of the first lens L1 to the image surface S1 of the camera optical lens 10 along the optical axis is defined as TTL. The camera optical lens 10 further satisfies the following condition: 0.01≤d3/TTL≤0.08. When the value is within this range, it benefits for realizing the ultra-thin effect. Preferably, the following condition shall be satisfied, 0.02≤d3/TTL≤0.07.

In the present embodiment, the object side surface of the third lens L3 is concave in the paraxial region and the image side surface of the third lens L3 is convex in the paraxial region. In other optional embodiments, the object side surface and the image side surface of the third lens L3 can also be set to other concave and convex distribution situations.

The focal length of the 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 10 further satisfies the following condition: −11.06≤f3/f≤313.92. By a reasonable distribution of the refractive power, which makes it is possible that the camera optical lens 10 has the excellent imaging quality and a lower sensitivity. Preferably, the following condition shall be satisfied, −6.91≤f3/f≤251.13.

The central curvature radius of the object side surface of the third lens L3 is defined as R5, and the central curvature radius of the image side surface of the third lens L3 is defined as R6. The camera optical lens 10 further satisfies the following condition: −4.00≤(R5+R5)/(R5−R6)≤−0.79, which specifies a shape of the third lens L3. When the value is within this range, a degree of deflection of light passing through the lens can be alleviated, and the aberration can be reduced effectively. Preferably, the following condition shall be satisfied, −2.50≤(R3+R4)/(R3−R4)≤−0.99.

An on-axis thickness of the third lens L3 is defined as d5. The total optical length from the object side surface of the first lens L1 to the image surface S1 of the camera optical lens 10 along the optical axis is defined as TTL. The camera optical lens 10 further satisfies the following condition: 0.02≤d5/TTL≤0.10, which benefits for realizing the ultra-thin effect. Preferably, the following condition shall be satisfied, 0.03≤d5/TTL≤0.08.

In the present embodiment, an object side surface of the fourth lens L4 is convex in the paraxial region and an image side surface of the fourth lens L4 is convex in the paraxial region. In other optional embodiments, the object side surface and the image side surface of the fourth lens L4 can also be set to other concave and convex distribution situations.

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 10 further satisfies the following condition: 0.36≤f4/f≤1.43. By a reasonable distribution of the refractive power, which makes it is possible that the camera optical lens 10 has the excellent imaging quality and the lower sensitivity. Preferably, the following condition shall be satisfied, 0.58≤f4/f≤1.14.

A curvature radius of the object side surface of the fourth lens L4 is defined as R7, and a central 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: −0.20≤(R7+R8)/(R7−R8)≤0.71, which specifies a shape of the fourth lens L4. When the value is within this range, as the development of the ultra-thin and wide-angle lenses, it benefits for solving the problems, such as correcting an off-axis aberration. Preferably, the following condition shall be satisfied, −0.12≤(R7+R8)/(R7−R8)≤0.57.

An on-axis thickness of the fourth lens L4 is defined as d7. The total optical length from the object side surface of the first lens L1 to the image surface S1 of the camera optical lens 10 along the optical axis is defined as TTL. The camera optical lens 10 further satisfies the following condition: 0.06≤d7/TTL≤0.24, which benefits for realizing the ultra-thin effect. Preferably, the following condition shall be satisfied, 0.09≤d7/TTL≤0.19.

In the present embodiment, an object side surface of the fifth lens L5 is convex in the paraxial region and an image side surface of the fifth lens L5 is concave in the paraxial region. In other optional embodiments, the object side surface and the image side surface of the fifth lens L5 can also be set to other concave and convex distribution situations.

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 10 further satisfies the following condition: −1.77≤f5/f≤−0.38, a light angle of the camera optical lens 10 can be smoothed effectively and the sensitivity of the tolerance can be reduced. Preferably, the following condition shall be satisfied, −1.11≤f5/f≤−0.48.

A central curvature radius of the object side surface of the fifth lens L5 is defined as R9, and a central curvature radius of an image side surface of the fifth lens L5 is defined as R10. The camera optical lens 10 further satisfies the following condition: 0.71≤(R9+R10)/(R9−R10)≤4.58, which specifies a shape of the fifth lens L5. When the value is within this range, as the development of the ultra-thin and wide-angle lenses, it benefits for solving the problems, such as correcting the off-axis aberration. Preferably, the following condition shall be satisfied, 1.13≤(R9+R10)/(R9−R10)≤3.66.

An on-axis thickness of the fifth lens L5 is defined as d9. The total optical length from the object side surface of the first lens L1 to the image surface S1 of the camera optical lens 10 along the optical axis is defined as TTL. The camera optical lens 10 further satisfies the following condition: 0.03≤d9/TTL≤0.11. When the value is within this range, it benefits for realizing the ultra-thin effect. Preferably, the following condition shall be satisfied, 0.05≤d9/TTL≤0.09.

In the present embodiment, the focal length of the camera optical lens 10 is f, and a combined focal length of the first lens L1 and the second lens L2 is defined as f12. The camera optical lens 10 further satisfies the following condition: 0.57≤f12/f≤1.88. This condition can eliminate the aberration and distortion of the camera optical lens 10, reduce the back focal length of the camera optical lens 10, and maintain the miniaturization of the camera lens system group. Preferably, the following condition shall be satisfied, 0.90≤f12/f≤1.50.

In the present embodiment, a field of view of the camera optical lens 10 in a diagonal direction is defined as FOV. The FOV is greater than or equal to 80.30°, thereby achieving the wide-angle performance. Preferably, the FOV is greater than or equal to 81.00°.

In the present embodiment, an image height of the camera optical lens 10 is defined as IH. The total optical length from the object side surface of the first lens L1 to the image surface S1 of the camera optical lens 10 along an optical axis is defined as TTL. The camera optical lens 10 further satisfies the following condition: TTL/IH≤1.46, thereby achieving the ultra-thin performance. Preferably, the following condition shall be satisfied, TTL/IH≤1.40.

In the present embodiment, an F number (FNO) of the camera optical lens 10 is smaller than or equal to 2.59, thereby achieving a large aperture and good imaging performance. Preferably, the FNO of the camera optical lens 10 is smaller than or equal to 2.54.

When satisfying above conditions, which makes it is possible that the camera optical lens has excellent optical performances, and meanwhile can meet design requirements of the ultra-thin, wide-angle lenses having large aperture. According the characteristics of the camera optical lens 10, it is particularly suitable for a mobile camera lens component and a WEB camera lens composed of high pixel CCD, CMOS.

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, central 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 L1 to the image surface S1 of the camera optical lens 10 along the optical axis, the unit of TTL is mm.

F number (FNO): the ratio of an effective focal length of the camera optical lens 10 to an entrance pupil diameter (ENPD).

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
vd

S1
∞
d0 =
−0.067
nd1
1.5444
v1
55.82

R1
1.911
d1 =
0.879

R2
−8.845
d2 =
0.030

R3
2.400
d3 =
0.210
nd2
1.6610
v2
20.53

R4
1.692
d4 =
0.321

R5
−5.759
d5 =
0.245
nd3
1.6610
v3
20.53

R6
−28.823
d6 =
0.245

R7
2.618
d7 =
0.441
nd4
1.5444
v4
55.82

R8
−3.190
d8 =
0.271

R9
3.514
d9 =
0.298
nd5
1.5346
v5
55.69

R10
0.937
d10 =
0.441

R11
∞
d11 =
0.210
ndg
1.5168
vg
64.17

R12
∞
d12 =
0.400

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

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

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

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

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

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

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

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

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

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

R11: central curvature radius of an object side surface of the optical filter GF;

R12: central 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 optical filter GF;

d11: on-axis thickness of the optical filter GF;

d12: on-axis distance from the image side surface of the optical filter GF to the image surface;

nd: refractive index of d line (d-line is green light with a wavelength of 550 nm);

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;

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;

vg: abbe number of the optical filter GF;

Table 2 shows the 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

R1
−1.1788E+01
2.3722E−01
−1.7463E+00
1.7786E+01
−1.3449E+02
6.4944E+02

R2
9.7000E+01
−1.1773E+00
5.3415E+00
−2.3872E+01
1.3453E+02
−6.4058E+02

R3
6.2727E+00
−1.2099E+00
4.3531E+00
−1.8179E+01
1.0078E+02
−4.4041E+02

R4
−2.3957E+00
−1.3393E−01
5.2344E−01
−9.6015E+00
9.1679E+01
−4.3988E+02

R5
−6.3544E+01
−3.2960E−01
1.3067E+00
−4.4578E+00
1.1602E+01
−2.4120E+01

R6
9.0927E+00
−4.5401E−01
5.8745E−01
−1.7656E−02
−2.1380E+00
4.7120E+00

R7
1.7684E+00
2.9311E−02
−7.4071E−01
9.6042E−01
−1.6048E−01
−1.1731E+00

R8
1.4758E+00
6.8951E−01
−1.9683E+00
3.1425E+00
−3.2100E+00
2.2064E+00

R9
−5.7100E+00
−2.9107E−01
−6.9693E−01
1.5793E+00
−1.3466E+00
6.3215E−01

R10
−3.4436E+00
−4.6735E−01
3.8882E−01
−1.8526E−01
4.5988E−02
−1.6971E−03

Conic coefficient
Aspheric surface coefficients

k
A14
A16
A18
A20

R1
−1.1788E+01
−1.9663E+03
3.6099E+03
−3.6770E+03
1.5976E+03

R2
9.7000E+01
1.9957E+03
−3.7378E+03
3.8228E+03
−1.6393E+03

R3
6.2727E+00
1.2276E+03
−2.0577E+03
1.8966E+03
−7.3911E+02

R4
−2.3957E+00
1.2126E+03
−1.9505E+03
1.7028E+03
−6.2336E+02

R5
−6.3544E+01
3.8918E+01
−4.2435E+01
2.6353E+01
−6.9971E+00

R6
9.0927E+00
−4.6777E+00
2.5308E+00
−7.6262E−01
9.3379E−02

R7
1.7684E+00
1.4144E+00
−6.9956E−01
1.6093E−01
−1.4177E−02

R8
1.4758E+00
−1.0332E+00
3.1695E−01
−5.7020E−02
4.5159E−03

R9
−5.7100E+00
−1.7781E−01
2.9941E−02
−2.7903E−03
1.1086E−04

R10
−3.4436E+00
−2.1914E−03
5.6333E−04
−5.3446E−05
1.6111E−06

For convenience, an aspheric surface of each lens surface uses the aspheric surfaces shown in the below condition (1). However, the present invention is not limited to the aspherical polynomials form shown in the condition (1).

z=(cr²)/{1+[1−(k+1)(c²r²)]^1/2}+A4r⁴+A6r⁶+A8r⁸+A10r¹⁰+A12r¹²+A14r¹⁴+A16r¹⁶+A18r¹⁸+A20r²⁰ (1)

Where, K is a conic coefficient, A4, A6, A8, A10, A12, A14, A16, A18, A20 are aspheric surface coefficients. c is the curvature at the center of the optical surface. r is a vertical distance between a point on an aspherical curve and the optic axis, and z is an aspherical depth (a vertical distance between a point on an aspherical surface, having a distance of r from the optic axis, and a surface tangent to a vertex of the aspherical surface on the optic axis).

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, and P5R1 and P5R2 represent the object side surface and the image side surface of the fifth lens L5. 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
In- flexion
In- flexion
In- flexion
In- flexion
In- flexion

of
point
point
point
point
point

inflexion
position
position
position
position
position

points
1
2
3
4
5

P1R1
0
/
/
/
/
/

P1R2
0
/
/
/
/
/

P2R1
2
0.215
0.435
/
/
/

P2R2
0
/
/
/
/
/

P3R1
0
/
/
/
/
/

P3R2
2
0.785
0.985
/
/
/

P4R1
2
0.445
1.155
/
/
/

P4R2
3
0.255
0.435
1.595
/
/

P5R1
5
0.255
0.915
1.315
1.505
2.015

P5R2
3
0.395
1.985
2.195
/
/

TABLE 4

Number of
Arrest point
Arrest point

arrest points
position 1
position 2

P1R1
0
/
/

P1R2
0
/
/

P2R1
0
/
/

P2R2
0
/
/

P3R1
0
/
/

P3R2
0
/
/

P4R1
1
0.725
/

P4R2
0
/
/

P5R1
2
0.415
1.925

P5R2
1
0.905
/

FIG. 2 and FIG. 3 respectively illustrate a longitudinal aberration and a lateral color of light with wavelengths of 656 nm, 587 nm, 546 nm, 486 nm, 436 nm and 430 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 546 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 21 in the following shows various values of Embodiments 1, 2, 3, 4 and Comparative embodiment, and also values corresponding to parameters which are specified in the above conditions. As shown in Table 21, Embodiment 1 satisfies the above conditions.

In the present embodiment, the entrance pupil diameter (ENPD) of the camera optical lens 10 is 1.297 mm. The image height of 1.0H is 2.92 mm. The FOV is 81.94°. Thus, the camera optical lens 10 satisfies design requirements of large aperture, ultra-thin and wide-angle while the on-axis and off-axis aberrations are sufficiently 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.

FIG. 5 shows a schematic diagram of a structure of a camera optical lens 20 according to Embodiment 2 of the present invention. 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
vd

S1
∞
d0 =
0.000
nd1
1.5444
v1
55.82

R1
2.676
d1 =
0.707

R2
−2.721
d2 =
0.086

R3
1.945
d3 =
0.212
nd2
1.6610
v2
20.53

R4
1.262
d4 =
0.317

R5
−7.495
d5 =
0.256
nd3
1.6610
v3
20.53

R6
−22.501
d6 =
0.292

R7
2.947
d7 =
0.521
nd4
1.5444
v4
55.82

R8
−3.239
d8 =
0.147

R9
1.207
d9 =
0.257
nd5
1.5346
v5
55.69

R10
0.611
d10 =
0.447

R11
∞
d11 =
0.210
ndg
1.5168
vg
64.17

R12
∞
d12 =
0.430

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
Aspheric surface coefficients

k
A4
A6
A8
A10
A12

R1
−5.1637E+01
2.4061E−01
−2.1328E+00
1.7919E+01
−1.3354E+02
6.4875E+02

R2
1.2627E+01
−7.9028E−01
4.1837E+00
−2.3378E+01
1.3849E+02
−6.4149E+02

R3
2.8961E+00
−1.1686E+00
3.9590E+00
−1.7689E+01
1.0128E+02
−4.4064E+02

R4
−1.0602E+01
−1.7639E−02
5.7759E−01
−9.8692E+00
9.1518E+01
−4.3927E+02

R5
−3.4216E+02
−4.1989E−01
1.4363E+00
−4.3739E+00
1.1549E+01
−2.4179E+01

R6
−1.0002E+03
−4.5287E−01
5.6890E−01
5.7078E−02
−2.1367E+00
4.7163E+00

R7
1.0941E+00
5.0882E−02
−7.2927E−01
9.5808E−01
−1.5841E−01
−1.1749E+00

R8
2.5684E+00
6.6951E−01
−1.9537E+00
3.1399E+00
−3.2111E+00
2.2064E+00

R9
−1.0154E+01
−3.1932E−01
−6.9122E−01
1.5799E+00
−1.3467E+00
6.3211E−01

R10
−3.6272E+00
−4.6757E−01
3.8880E−01
−1.8500E−01
4.5964E−02
−1.6954E−03

Conic coefficient
Aspheric surface coefficients

k
A14
A16
A18
A20

R1
−5.1637E+01
−1.9714E+03
3.6090E+03
−3.6350E+03
1.5435E+03

R2
1.2627E+01
1.9838E+03
−3.7420E+03
3.8526E+03
−1.6370E+03

R3
2.8961E+00
1.2254E+03
−2.0578E+03
1.9019E+03
−7.4200E+02

R4
−1.0602E+01
1.2135E+03
−1.9513E+03
1.6984E+03
−6.1852E+02

R5
−3.4216E+02
3.8780E+01
−4.2410E+01
2.6932E+01
−7.5500E+00

R6
−1.0002E+03
−4.6875E+00
2.5089E+00
−7.9879E−01
1.2621E−01

R7
1.0941E+00
1.4133E+00
−6.9929E−01
1.6120E−01
−1.4222E−02

R8
2.5684E+00
−1.0331E+00
3.1700E−01
−5.7011E−02
4.5092E−03

R9
−1.0154E+01
−1.7781E−01
2.9942E−02
−2.7899E−03
1.1077E−04

R10
−3.6272E+00
−2.1923E−03
5.6296E−04
−5.3537E−05
1.6359E−06

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
In- flexion
In- flexion
In- flexion
In- flexion
In- flexion

of
point
point
point
point
point

inflexion
position
position
position
position
position

points
1
2
3
4
5

P1R1
1
0.415
/
/
/
/

P1R2
0
/
/
/
/
/

P2R1
2
0.255
0.445
/
/
/

P2R2
0
/
/
/
/
/

P3R1
2
0.645
0.775
/
/
/

P3R2
2
0.725
0.975
/
/
/

P4R1
2
0.445
1.165
/
/
/

P4R2
3
0.265
0.415
1.605
/
/

P5R1
5
0.295
0.965
1.275
1.515
1.985

P5R2
3
0.375
2.025
2.175
/
/

TABLE 8

Number of
Arrest point
Arrest point

arrest points
position 1
position 2

P1R1
1
0.635
/

P1R2
0
/
/

P2R1
0
/
/

P2R2
0
/
/

P3R1
0
/
/

P3R2
0
/
/

P4R1
1
0.725
/

P4R2
0
/
/

P5R1
1
0.535
/

P5R2
1
0.965
/

FIG. 6 and FIG. 7 respectively illustrate a longitudinal aberration and a lateral color of light with wavelengths of 656 nm, 587 nm, 546 nm, 486 nm, 436 nm and 430 nm after passing the camera optical lens 20 according to Embodiment 2. FIG. 8 illustrates a field curvature and a distortion of light with a wavelength of 546 nm after passing the camera optical lens 10 according to Embodiment 2, in which a field curvature S is a field curvature in a sagittal direction and T is a field curvature in a tangential direction.

As shown in Table 21, Embodiment 2 satisfies the above conditions.

In the present embodiment, an entrance pupil diameter (ENPD) of the camera optical lens is 1.218 mm. An image height of 1.0H is 2.920 mm. An FOV is 85.60°. Thus, the camera optical lens 20 satisfies design requirements of large aperture, ultra-thin and wide-angle while the on-axis and off-axis aberrations are sufficiently 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.

FIG. 9 shows a schematic diagram of a structure of a camera optical lens 30 according to Embodiment 3 of the present invention. Tables 9 and 10 show the design data of the camera optical lens 20 in Embodiment 2 of the present invention.

TABLE 9

R
d
nd
vd

S1
∞
d0 =
−0.101
nd1
1.5444
v1
55.82

R1
1.728
d1 =
1.310

R2
−55.714
d2 =
0.026

R3
8.923
d3 =
0.115
nd2
1.6610
v2
20.53

R4
4.426
d4 =
0.176

R5
−7.070
d5 =
0.207
nd3
1.6610
v3
20.53

R6
−53.610
d6 =
0.214

R7
4.750
d7 =
0.563
nd4
1.5444
v4
55.82

R8
−1.707
d8 =
0.326

R9
4.764
d9 =
0.255
nd5
1.5346
v5
55.69

R10
0.814
d10 =
0.370

R11
∞
d11 =
0.110
ndg
1.5168
vg
64.17

R12
∞
d12 =
0.402

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
Aspheric surface coefficients

k
A4
A6
A8
A10
A12

R1
−1.8130E+01
4.0378E−01
−1.8137E+00
1.7463E+01
−1.3412E+02
6.5091E+02

R2
−3.8620E+02
−1.1340E+00
5.0707E+00
−2.4019E+01
1.3585E+02
−6.4019E+02

R3
6.0441E+01
−1.0707E+00
4.0419E+00
−1.7726E+01
1.0069E+02
−4.4102E+02

R4
−1.1582E+02
4.3501E−02
5.4626E−01
−1.0255E+01
9.1678E+01
−4.3873E+02

R5
−8.1769E+02
−4.3910E−01
1.5117E+00
−4.6538E+00
1.1058E+01
−2.4111E+01

R6
−8.2301E+02
−4.2605E−01
4.0905E−01
1.1174E−02
−2.2931E+00
4.6151E+00

R7
2.4724E+00
1.0589E−01
−7.6135E−01
8.8182E−01
−1.2872E−01
−1.1648E+00

R8
−1.0438E+00
7.5941E−01
−1.9696E+00
3.1317E+00
−3.2077E+00
2.2068E+00

R9
−2.9546E+01
−2.9966E−01
−6.9255E−01
1.5796E+00
−1.3467E+00
6.3212E−01

R10
−3.9774E+00
−4.4679E−01
3.8179E−01
−1.8543E−01
4.6137E−02
−1.6771E−03

Conic coefficient
Aspheric surface coefficients

k
A14
A16
A18
A20

R1
−1.8130E+01
−1.9659E+03
3.6047E+03
−3.6852E+03
1.6156E+03

R2
−3.8620E+02
1.9920E+03
−3.7400E+03
3.8296E+03
−1.6387E+03

R3
6.0441E+01
1.2264E+03
−2.0573E+03
1.8987E+03
−7.3738E+02

R4
−1.1582E+02
1.2137E+03
−1.9527E+03
1.6971E+03
−6.1769E+02

R5
−8.1769E+02
4.0119E+01
−3.9994E+01
2.7576E+01
−1.4758E+01

R6
−8.2301E+02
−4.4579E+00
3.1603E+00
−3.6990E−01
−7.3555E−01

R7
2.4724E+00
1.4043E+00
−7.1641E−01
1.6196E−01
−5.0798E−04

R8
−1.0438E+00
−1.0333E+00
3.1690E−01
−5.7019E−02
4.5182E−03

R9
−2.9546E+01
−1.7781E−01
2.9941E−02
−2.7900E−03
1.1082E−04

R10
−3.9774E+00
−2.1927E−03
5.6239E−04
−5.3584E−05
1.6483E−06

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
In- flexion
In- flexion
In- flexion
In- flexion
In- flexion

of
point
point
point
point
point

inflexion
position
position
position
position
position

points
1
2
3
4
5

P1R1
0
/
/
/
/
/

P1R2
1
0.685
/
/
/
/

P2R1
1
0.105
/
/
/
/

P2R2
1
0.645
/
/
/
/

P3R1
0
/
/
/
/
/

P3R2
1
0.755
/
/
/
/

P4R1
2
0.415
1.065
/
/
/

P4R2
0
/
/
/
/
/

P5R1
5
0.215
0.935
1.335
1.465
2.005

P5R2
3
0.385
2.005
2.195
/
/

TABLE 12

Number of
Arrest point
Arrest point

arrest points
position 1
position 2

P1R1
0
/
/

P1R2
0
/
/

P2R1
1
0.175
/

P2R2
1
0.755
/

P3R1
0
/
/

P3R2
1
0.875
/

P4R1
1
0.625
/

P4R2
0
/
/

P5R1
1
0.355
/

P5R2
1
0.935
/

FIG. 10 and FIG. 11 respectively illustrate a longitudinal aberration and a lateral color of light with wavelengths of 656 nm, 587 nm, 546 nm, 486 nm, 436 nm and 430 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 546 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.

As shown in Table 21, Embodiment 3 satisfies the above conditions.

In the present embodiment, an entrance pupil diameter (ENPD) of the camera optical lens is 1.292 mm. An image height of 1.0H is 2.920 mm. An FOV is 82.33°. Thus, the camera optical lens 30 satisfies design requirements of large aperture, ultra-thin and wide-angle while the on-axis and off-axis aberrations are sufficiently corrected, thereby achieving excellent optical characteristics.

Embodiment 4

Embodiment 4 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.

FIG. 13 shows a schematic diagram of a structure of a camera optical lens 40 according to Embodiment 4 of the present invention. A third lens L3 has a positive refractive power. An object side surface of a third lens L3 is convex at a paraxial position, and an image side surface of the third lens L3 is concave at the paraxial position. Tables 13 and 14 show design data of the camera optical lens 40 in Embodiment 4 of the present invention.

TABLE 13

R
d
nd
vd

S1
∞
d0 =
−0.080
nd1
1.5444
v1
55.82

R1
1.920
d1 =
1.114

R2
−1025.752
d2 =
0.027

R3
2.750
d3 =
0.115
nd2
1.6610
v2
20.53

R4
2.275
d4 =
0.193

R5
401.559
d5 =
0.160
nd3
1.6610
v3
20.53

R6
4800.620
d6 =
0.362

R7
5.101
d7 =
0.645
nd4
1.5444
v4
55.82

R8
−2.024
d8 =
0.137

R9
1.803
d9 =
0.273
nd5
1.5346
v5
55.69

R10
0.660
d10 =
0.401

R11
∞
d11 =
0.210
ndg
1.5168
vg
64.17

R12
∞
d12 =
0.412

Table 14 shows aspherical surface data of each lens of the camera optical lens 40 in Embodiment 4 of the present invention.

TABLE 14

Conic coefficient
Aspheric surface coefficients

k
A4
A6
A8
A10
A12

R1
−2.1225E+01
3.6542E−01
−1.8312E+00
1.7502E+01
−1.3409E+02
6.5089E+02

R2
−4.5549E+02
−1.1661E+00
5.1201E+00
−2.4013E+01
1.3549E+02
−6.4073E+02

R3
3.6645E+00
−1.1535E+00
3.9075E+00
−1.7820E+01
1.0103E+02
−4.4042E+02

R4
−1.9273E+01
−2.2411E−02
4.6782E−01
−1.0092E+01
9.1594E+01
−4.3895E+02

R5
−1.4205E+02
−3.6397E−01
1.4580E+00
−4.5417E+00
1.1226E+01
−2.4243E+01

R6
−3.8893E+01
−3.7188E−01
4.4281E−01
6.7719E−02
−2.2036E+00
4.6465E+00

R7
7.8956E+00
1.2792E−01
−7.0642E−01
8.7870E−01
−1.5139E−01
−1.1672E+00

R8
−1.3514E+00
7.4806E−01
−1.9813E+00
3.1350E+00
−3.2083E+00
2.2068E+00

R9
−1.0264E+01
−3.0657E−01
−6.9494E−01
1.5794E+00
−1.3467E+00
6.3214E−01

R10
−3.3774E+00
−4.5906E−01
3.8570E−01
−1.8495E−01
4.6109E−02
−1.6948E−03

Conic coefficient
Aspheric surface coefficients

k
A14
A16
A18
A20

R1
−2.1225E+01
−1.9662E+03
3.6041E+03
−3.6857E+03
1.6207E+03

R2
−4.5549E+02
1.9921E+03
−3.7364E+03
3.8350E+03
−1.6543E+03

R3
3.6645E+00
1.2264E+03
−2.0591E+03
1.8960E+03
−7.3605E+02

R4
−1.9273E+01
1.2135E+03
−1.9527E+03
1.6974E+03
−6.1843E+02

R5
−1.4205E+02
3.9553E+01
−4.0736E+01
2.7376E+01
−1.2785E+01

R6
−3.8893E+01
−4.5028E+00
3.0083E+00
−4.4779E−01
−7.1653E−01

R7
7.8956E+00
1.4117E+00
−7.0323E−01
1.6028E−01
−1.0499E−02

R8
−1.3514E+00
−1.0333E+00
3.1691E−01
−5.7024E−02
4.5192E−03

R9
−1.0264E+01
−1.7780E−01
2.9943E−02
−2.7899E−03
1.1068E−04

R10
−3.3774E+00
−2.1962E−03
5.6204E−04
−5.3558E−05
1.6746E−06

Table 15 and table 16 show Embodiment 4 design data of inflexion points and arrest points of respective lens in the camera optical lens 40 according to Embodiment 4 of the present invention.

TABLE 15

Number
In- flexion
In- flexion
In- flexion
In- flexion
In- flexion

of
point
point
point
point
point

inflexion
position
position
position
position
position

points
1
2
3
4
5

P1R1
0
/
/
/
/
/

P1R2
0
/
/
/
/
/

P2R1
1
0.195
/
/
/
/

P2R2
1
0.555
/
/
/
/

P3R1
1
0.025
/
/
/
/

P3R2
2
0.015
0.705
/
/
/

P4R1
2
0.455
1.125
/
/
/

P4R2
1
1.605
/
/
/
/

P5R1
5
0.295
0.955
1.255
1.555
1.975

P5R2
3
0.395
2.045
2.205
/
/

TABLE 16

Number of
Arrest point
Arrest point

arrest points
position 1
position 2

P1R1
0
/
/

P1R2
0
/
/

P2R1
1
0.385
/

P2R2
1
0.715
/

P3R1
1
0.045
/

P3R2
2
0.015
0.835

P4R1
1
0.695
/

P4R2
0
/
/

P5R1
1
0.505
/

P5R2
1
1.025
/

FIG. 14 and FIG. 15 respectively illustrate a longitudinal aberration and a lateral color of light with wavelengths of 656 nm, 587 nm, 546 nm, 486 nm, 436 nm and 430 nm after passing the camera optical lens 30 according to Embodiment 4. FIG. 16 illustrates a field curvature and a distortion of light with a wavelength of 546 nm after passing the camera optical lens 40 according to Embodiment 4, 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 21 in the following lists values corresponding to the respective conditions. As shown in Table 21, Embodiment 4 satisfies the above conditions.

In the present embodiment, an entrance pupil diameter (ENPD) of the camera optical lens is 1.246 mm. An image height of 1.0H is 2.920 mm. An FOV is 84.51°. Thus, the camera optical lens 40 satisfies design requirements of large aperture, ultra-thin and wide-angle while the on-axis and off-axis aberrations are sufficiently corrected, thereby achieving excellent optical characteristics.

Comparative Embodiment

Comparative embodiment 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.

FIG. 17 shows a schematic diagram of a structure of a camera optical lens 50 according to Comparative embodiment of the present invention. Tables 17 and 18 show the design data of a camera optical lens 50 in Comparative embodiment of the present invention.

TABLE 17

R
d
nd
vd

S1
∞
d0 =
−0.012
nd1
1.5444
v1
55.82

R1
2.291
d1 =
0.711

R2
−4.497
d2 =
0.051

R3
2.253
d3 =
0.409
nd2
1.6610
v2
20.53

R4
1.507
d4 =
0.276

R5
−8.244
d5 =
0.344
nd3
1.6610
v3
20.53

R6
−29.117
d6 =
0.296

R7
2.477
d7 =
0.457
nd4
1.5444
v4
55.82

R8
−3.662
d8 =
0.104

R9
1.213
d9 =
0.393
nd5
1.5346
v5
55.69

R10
0.635
d10 =
0.412

R11
∞
d11 =
0.210
ndg
1.5168
vg
64.17

R12
∞
d12 =
0.571

Table 18 shows aspherical surface data of each lens of the camera optical lens 50 in Comparative Embodiment.

TABLE 18

Conic coefficient
Aspheric surface coefficients

k
A4
A6
A8
A10
A12

R1
−1.2079E+01
1.2811E−01
−2.0053E+00
1.7900E+01
−1.3403E+02
6.4940E+02

R2
3.8911E+01
−1.1830E+00
5.1248E+00
−2.3842E+01
1.3512E+02
−6.4001E+02

R3
5.8908E+00
−1.1994E+00
4.2324E+00
−1.8254E+01
1.0093E+02
−4.4006E+02

R4
−3.4848E+00
−1.2814E−01
6.5332E−01
−9.7631E+00
9.1437E+01
−4.3991E+02

R5
−3.7353E+00
−3.6376E−01
1.3788E+00
−4.3395E+00
1.1578E+01
−2.4258E+01

R6
7.5796E+02
−5.0118E−01
6.6806E−01
−4.0759E−03
−2.1306E+00
4.7320E+00

R7
1.6973E+00
5.1945E−02
−7.4309E−01
9.5911E−01
−1.6119E−01
−1.1739E+00

R8
2.2221E+00
6.8605E−01
−1.9793E+00
3.1426E+00
−3.2091E+00
2.2068E+00

R9
−6.7145E+00
−3.0403E−01
−6.9570E−01
1.5796E+00
−1.3466E+00
6.3215E−01

R10
−3.1077E+00
−4.6480E−01
3.8789E−01
−1.8512E−01
4.5994E−02
−1.7027E−03

Conic coefficient
Aspheric surface coefficients

k
A14
A16
A18
A20

R1
−1.2079E+01
−1.9681E+03
3.6053E+03
−3.6767E+03
1.6043E+03

R2
3.8911E+01
1.9945E+03
−3.7417E+03
3.8216E+03
−1.6162E+03

R3
5.8908E+00
1.2278E+03
−2.0588E+03
1.8944E+03
−7.3642E+02

R4
−3.4848E+00
1.2132E+03
−1.9494E+03
1.7034E+03
−6.2733E+02

R5
−3.7353E+00
3.9045E+01
−4.2157E+01
2.6373E+01
−7.7120E+00

R6
7.5796E+02
−4.6625E+00
2.5397E+00
−7.4622E−01
1.6137E−02

R7
1.6973E+00
1.4138E+00
−6.9982E−01
1.6094E−01
−1.4051E−02

R8
2.2221E+00
−1.0331E+00
3.1696E−01
−5.7028E−02
4.5079E−03

R9
−6.7145E+00
−1.7781E−01
2.9940E−02
−2.7904E−03
1.1088E−04

R10
−3.1077E+00
−2.1928E−03
5.6313E−04
−5.3442E−05
1.6233E−06

Table 19 and table 20 show Comparative embodiment design data of inflexion points and arrest points of respective lens in the camera optical lens 50 according to Comparative Embodiment.

TABLE 19

Number
In- flexion
In- flexion
In- flexion
In- flexion
In- flexion

of
point
point
point
point
point

inflexion
position
position
position
position
position

points
1
2
3
4
5

P1R1
1
0.425
/
/
/
/

P1R2
0
/
/
/
/
/

P2R1
2
0.235
0.455
/
/
/

P2R2
0
/
/
/
/
/

P3R1
2
0.605
0.785
/
/
/

P3R2
1
0.705
/
/
/
/

P4R1
2
0.475
1.175
/
/
/

P4R2
3
0.225
0.455
1.635
/
/

P5R1
5
0.325
0.945
1.265
1.535
1.905

P5R2
3
0.405
2.025
2.185
/
/

TABLE 20

Number of
Arrest point
Arrest point

arrest points
position 1
position 2

P1R1
0
/
/

P1R2
0
/
/

P2R1
0
/
/

P2R2
0
/
/

P3R1
0
/
/

P3R2
1
0.925
/

P4R1
1
0.775
/

P4R2
0
/
/

P5R1
1
0.575
/

P5R2
1
1.065
/

FIG. 18 and FIG. 19 respectively illustrate a longitudinal aberration and a lateral color of light with wavelengths of 656 nm, 587 nm, 546 nm, 486 nm, 436 nm and 430 nm after passing the camera optical lens 30 according to Comparative embodiment. FIG. 20 illustrates a field curvature and a distortion of light with a wavelength of 546 nm after passing the camera optical lens 50 according to Comparative embodiment, 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 21 in the following lists values corresponding to the respective conditions. The present Comparative Embodiment does not satisfy the above conditions 0.18≤d1/TTL≤0.40.

In the present embodiment, an entrance pupil diameter (ENPD) of the camera optical lens 50 is 1.122 mm. An image height of 1.0H is 2.920 mm. An FOV is 86.60°. Thus, the camera optical lens 50 does not satisfy design requirements of large apertures, ultra-thin and wide-angle.

TABLE 21

Parameters

and
Embodi-
Embodi-
Embodi-
Embodi-
Comparative

conditions
ment 1
ment 2
ment 3
ment 4
embodiment

d1/TTL
0.220
0.182
0.322
0.275
0.168

ET1/d1
0.767
0.618
0.847
0.833
0.779

f2/f
−2.989
−2.006
−4.086
−6.973
−2.891

R6/R5
5.005
3.002
7.583
11.955
3.532

(R1 + R2)/
−0.645
−0.008
−0.940
−0.996
−0.325

(R1 − R2)

f
3.261
3.062
3.248
3.132
2.821

f1
2.960
2.587
3.091
3.507
2.868

f2
−9.748
−6.141
−13.271
−21.838
−8.156

£3
−10.812
−16.927
−12.203
655.456
−17.283

f4
2.703
2.909
2.369
2.738
2.776

f5
−2.479
−2.711
−1.871
−2.116
−3.020

f12
3.707
3.700
3.671
3.924
3.725

FNO
2.51
2.51
2.51
2.51
2.51

TTL
3.991
3.882
4.074
4.049
4.234

ET1
0.674
0.437
1.109
0.928
0.554

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.

Camera Optical Lens

Information

Publication Number

Date Filed

Date Published

Inventors

Original Assignees

CPC

International Classifications

Abstract

Description

Claims

Priority Claims (1)