# US 10,871,632 B2 · Camera optical lens

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- Number: US 10,871,632 B2
- Document ID: US10871632B2
- Status: Granted
- Kind: B2
- Application number: 16/055,069
- Filed: 2018-08-04
- Published: 2019-10-31
- Granted: 2020-12-22
- Earliest claimed: 2018-04-26
- Assignees: AAC Optics Solutions Pte. Ltd.
- Applicants: AAC Technologies Pte. Ltd.
- Inventors: Chunhuan Fang; Lei Zhang; Yanmei Wang; Yanli Xie
- Web page: https://patentgrep.com/patent/US10871632B2

## CPC

- G02B 13/0045: {having five or more lenses}
- G02B 1/041: {Lenses}
- G02B 9/62: having six components only
- G02B 13/06: Panoramic objectives; So-called "sky lenses" {including panoramic objectives having reflecting surfaces}
- G02B 27/005: {for correction of secondary colour or higher-order chromatic aberrations}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

The present disclosure discloses a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens, a fifth lens, and a sixth lens. The first lens is made of glass material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, and the sixth lens is made of glass material. The camera optical lens further satisfies specific conditions.

## Claims

### Claim 1

A camera optical lens comprising, from an object side to an image side in sequence: a first lens, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens, a fifth lens, and a sixth lens;
wherein the second lens has a convex object side surface and a concave image side surface;
wherein the camera optical lens further satisfies the following conditions:
0.5≤f1/f≤10;
1.7≤n1≤2.2;
1.7≤n6≤2.2;
0.02≤d1/TTL≤0.07;
0.84≤f2/f≤2.82;
−2.54≤(R3+R4)/(R3−R4)≤−0.8;
0.06≤d3/TTL≤0.19;
where f: the focal length of the camera optical lens; f1: the focal length of the first lens; f2: the focal length of the second lens; n1: the refractive power of the first lens; n6: the refractive power of the sixth lens; d1: the thickness on-axis of the first lens; TTL: optical length; R3: the curvature radius of the object side surface of the second lens; R4: the curvature radius of the image side surface of the second lens; d3: the thickness on-axis of the second lens.

### Claim 2 (depends on 1)

The camera optical lens as described in claim 1, wherein the first lens is made of glass material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, the sixth lens is made of glass material.

### Claim 3 (depends on 1)

The camera optical lens as described in claim 1 further satisfying the following conditions:
1.431≤f1/f≤8.2365;
1.702≤n1≤2.17;
1.712≤n6≤2.15;
0.029≤d1/TTL≤0.058.

### Claim 4 (depends on 1)

The camera optical lens as described in claim 1, wherein the first lens has a positive refractive power with a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following condition:
−26.53≤(R1+R2)/(R1−R2)≤−4.61; where
R1: the curvature radius of object side surface of the first lens;
R2: the curvature radius of image side surface of the first lens.

### Claim 5 (depends on 4)

The camera optical lens as described in claim 4 further satisfying the following condition:
−16.58≤(R1+R2)/(R1−R2)≤−5.76.

### Claim 6 (depends on 1)

The camera optical lens as described in claim 1, further satisfying the following conditions:
1.34≤f2/f≤2.26;
−1.59≤(R3+R4)/(R3−R4)≤−1.00;
0.10≤d3/TTL≤0.16.

### Claim 7 (depends on 1)

The camera optical lens as described in claim 1, wherein the third lens has a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions:
−7.52≤f3/f≤−1.48;
1.63≤(R5+R6)/(R5−R6)≤7.18;
0.02≤d5/TTL≤0.07; where
f: the focal length of the camera optical lens;
f3: the focal length of the third lens;
R5: the curvature radius of the object side surface of the third lens;
R6: the curvature radius of the image side surface of the third lens;
d5: the thickness on-axis of the third lens;
TTL: optical length.

### Claim 8 (depends on 7)

The camera optical lens as described in claim 7 further satisfying the following conditions:
−4.70≤f3/f≤−1.85;
2.60≤(R5+R6)/(R5−R6)≤5.75;
0.03≤d5/TTL≤0.05.

### Claim 9 (depends on 1)

The camera optical lens as described in claim 1, wherein the fourth lens has a positive refractive power with a convex object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions:
1.27≤f4/f≤4.23;
−1.56≤(R7+R8)/(R7−R8)≤−0.49;
0.04≤d7/TTL≤0.16; where
f: the focal length of the camera optical lens;
f4: the focal length of the fourth lens;
R7: the curvature radius of the object side surface of the fourth lens;
R8: the curvature radius of the image side surface of the fourth lens;
d7: the thickness on-axis of the fourth lens;
TTL: optical length.

### Claim 10 (depends on 9)

The camera optical lens as described in claim 9 further satisfying the following conditions:
2.03≤f4/f≤3.38;
−0.98≤(R7+R8)/(R7−R8)≤−0.62;
0.07≤d7/TTL≤0.13.

### Claim 11 (depends on 1)

The camera optical lens as described in claim 1, wherein the fifth lens has a negative refractive power with a concave object side surface and a convex image side surface; the camera optical lens further satisfies the following conditions:
−10.51≤f5/f≤−2.81;
−9.14≤(R9+R10)/(R9−R10)≤−2.68;
0.04≤d9/TTL≤0.14; where
f: the focal length of the camera optical lens;
f5: the focal length of the fifth lens;
R9: the curvature radius of the object side surface of the fifth lens;
R10: the curvature radius of the image side surface of the fifth lens;
d9: the thickness on-axis of the fifth lens;
TTL: optical length.

### Claim 12 (depends on 11)

The camera optical lens as described in claim 11 further satisfying the following conditions:
−6.57≤f5/f≤−3.52;
−5.71≤(R9+R10)/(R9−R10)≤−3.35;
0.07≤d9/TTL≤0.11.

### Claim 13 (depends on 1)

The camera optical lens as described in claim 1, wherein the sixth lens has a positive refractive power with a convex object side surface and a concave image side surface; the camera optical lens further satisfies the following conditions:
2.52≤f6/f≤10.26;
4.26≤(R11+R12)/(R11−R12)≤19.75;
0.08≤d11/TTL≤0.29; where
f: the focal length of the camera optical lens;
f6: the focal length of the sixth lens;
R11: the curvature radius of the object side surface of the sixth lens;
R12: the curvature radius of the image side surface of the sixth lens;
d11: the thickness on-axis of the sixth lens;
TTL: optical length.

### Claim 14 (depends on 13)

The camera optical lens as described in claim 13 further satisfying the following conditions:
4.03≤f6/f≤8.21;
6.81≤(R11+R12)/(R11−R12)≤15.80;
0.13≤d11/TTL≤0.24.

### Claim 15 (depends on 1)

The camera optical lens as described in claim 1 further satisfying the following condition:
0.54≤f12/f≤2.06; where
f12: the combined focal length of the first lens and the second lens;
f: the focal length of the camera optical lens.

### Claim 16 (depends on 15)

The camera optical lens as described in claim 15 further satisfying the following condition:
0.86≤f12/f≤1.65.

### Claim 17 (depends on 1)

The camera optical lens as described in claim 1, wherein the total optical length TTL of the camera optical lens is less than or equal to 5.59 mm.

### Claim 18 (depends on 17)

The camera optical lens as described in claim 17, wherein the total optical length TTL of the camera optical lens is less than or equal to 5.34 mm.

### Claim 19 (depends on 1)

The camera optical lens as described in claim 1, wherein the aperture F number of the camera optical lens is less than or equal to 2.06.

### Claim 20 (depends on 19)

The camera optical lens as described in claim 19, wherein the aperture F number of the camera optical lens is less than or equal to 2.02.