# US 12,181,634 B2 · Camera lens assembly

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,181,634 B2
- Document ID: US12181634B2
- Status: Granted
- Kind: B2
- Application number: 17/128,577
- Filed: 2020-12-21
- Published: 2021-04-15
- Granted: 2024-12-31
- Earliest claimed: 2018-09-05
- Assignees: Zhejiang Sunny Optics Co., Ltd.
- Applicants: Zhejiang Sunny Optics Co., Ltd.
- Inventors: Yuanlin Jia; Wuchao Xu
- Web page: https://patentgrep.com/patent/US12181634B2

## CPC

- G02B 13/0045: {having five or more lenses}
- G02B 9/62: having six components only
- G02B 27/0025: {for optical correction, e.g. distorsion, aberration}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

The present disclosure discloses a camera lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens. The first lens has negative refractive power; the second lens has positive refractive power; the third lens has negative refractive power; the fourth lens has refractive power; the fifth lens has refractive power; and the sixth lens has negative refractive power. At least one of the first lens to the sixth lens has a non-rotationally symmetrical aspheric surface. An effective focal length fx in an X-axis direction of the camera lens assembly and an effective focal length fy in a Y-axis direction of the camera lens assembly satisfy 0.5<fx/fy<1.5.

## Claims

### Claim 1

A camera lens assembly, sequentially from an object side to an image side along an optical axis, comprising: a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens,
wherein,
the first lens has negative refractive power;
the second lens has positive refractive power;
the third lens has negative refractive power;
the fourth lens has refractive power;
the fifth lens has refractive power; and
the sixth lens has negative refractive power;
wherein at least one of the first lens to the sixth lens has a non-rotationally symmetric aspheric surface,
wherein 0.5<fx/fy<1.5, where fx is an effective focal length in an X-axis direction of the camera lens assembly, and fy is an effective focal length in a Y-axis direction of the camera lens assembly, and
wherein a direction parallel to the optical axis is defined as a Z-axis direction, a direction perpendicular to the Z-axis and located on a tangential plane is the Y-axis direction, and a direction perpendicular to the Z-axis and located on a sagittal plane is the X-axis direction.

### Claim 2 (depends on 1)

The camera lens assembly according to claim 1, wherein each of an object-side surface and an image-side surface of the second lens is a convex surface,
the fourth lens has negative refractive power,
the fifth lens has positive refractive power, and
each of an object-side surface and an image-side surface of the fifth lens is a convex surface.

### Claim 3 (depends on 1)

The camera lens assembly according to claim 1, wherein 0.5 mm−1<|1/f5−1/f6|<2.5 mm−1,
where f5 is an effective focal length of the fifth lens, and f6 is an effective focal length of the sixth lens.

### Claim 4 (depends on 1)

The camera lens assembly according to claim 1, wherein −0.6<f2/f1<−0.4,
where f1 is an effective focal length of the first lens, and f2 is an effective focal length of the second lens.

### Claim 5 (depends on 1)

The camera lens assembly according to claim 1, wherein the first lens has a non-rotationally symmetrical aspheric surface.

### Claim 6 (depends on 1)

The camera lens assembly according to claim 1, wherein 0<R9/R8<1.5,
where R9 is a radius of curvature of an object-side surface of the fifth lens, and R8 is a radius of curvature of an image-side surface of the fourth lens.

### Claim 7 (depends on 1)

The camera lens assembly according to claim 1, wherein 0.2<CT6/ET6<1,
where CT6 is a center thickness of the sixth lens along the optical axis, and ET6 is an edge thickness of the sixth lens in a direction parallel to the optical axis.

### Claim 8 (depends on 1)

The camera lens assembly according to claim 1, wherein −0.5<SAG51/SAG61<0.5,
where SAG51 is a distance along the optical axis from an intersection of an object-side surface of the fifth lens and the optical axis to a projection point of a vertex of an effective radius of the object-side surface of the fifth lens onto the optical axis, and SAG61 is a distance along the optical axis from an intersection of an object-side surface of the sixth lens and the optical axis to a projection point of a vertex of an effective radius of the object-side surface of the sixth lens onto the optical axis.

### Claim 9 (depends on 1)

The camera lens assembly according to claim 1, wherein the camera lens assembly further comprises a stop, and 4.24 mm≥SL≥4 mm,
where SL is a distance along the optical axis from the stop to an imaging plane of the camera lens assembly.

### Claim 10 (depends on 1)

The camera lens assembly according to claim 1, wherein TTL/ImgH<1.8,
where TTL is a distance along the optical axis from a center of an object-side surface of the first lens to an imaging plane of the camera lens assembly, and ImgH is half of a diagonal length of an effective pixel area on the imaging plane of the camera lens assembly.

### Claim 11 (depends on 1)

The camera lens assembly according to claim 1, wherein FOV>90°,
where FOV is a full field-of-view of the camera lens assembly.

### Claim 12 (depends on 1)

The camera lens assembly according to claim 1, wherein 0.5<CT3/CT4<1, where CT3 is a center thickness of the third lens along the optical axis, and CT4 is a center thickness of the fourth lens along the optical axis.

### Claim 13 (depends on 12)

The camera lens assembly according to claim 12, wherein 0.5 mm−1<|1/f5−1/f6|<2.5 mm−1,
where f5 is an effective focal length of the fifth lens, and f6 is an effective focal length of the sixth lens.

### Claim 14 (depends on 12)

The camera lens assembly according to claim 12, wherein −0.6<f2/f1<−0.4,
where f1 is an effective focal length of the first lens, and f2 is an effective focal length of the second lens.

### Claim 15 (depends on 12)

The camera lens assembly according to claim 12, wherein 0<R9/R8<1.5,
where R9 is a radius of curvature of an object-side surface of the fifth lens, and R8 is a radius of curvature of an image-side surface of the fourth lens.

### Claim 16 (depends on 12)

The camera lens assembly according to claim 12, wherein 0.2<CT6/ET6<1,
where CT6 is a center thickness of the sixth lens along the optical axis, and ET6 is an edge thickness of the sixth lens.

### Claim 17 (depends on 12)

The camera lens assembly according to claim 12, wherein −0.5<SAG51/SAG61<0.5,
where SAG51 is a distance along the optical axis from an intersection of an object-side surface of the fifth lens and the optical axis to a projection point of a vertex of an effective radius of the object-side surface of the fifth lens onto the optical axis, and SAG61 is a distance along the optical axis from an intersection of an object-side surface of the sixth lens and the optical axis to a projection point of a vertex of an effective radius of the object-side surface of the sixth lens onto the optical axis.

### Claim 18 (depends on 12)

The camera lens assembly according to claim 12, wherein FOV>90°, where FOV is a full field-of-view of the camera lens assembly.

### Claim 19 (depends on 1)

The camera lens assembly according to claim 1, wherein 0.5<fx/fy≤0.95 or 1.01≤fx/fy<1.5.

### Claim 20 (depends on 1)

The camera lens assembly according to claim 1, wherein the fourth lens has negative refractive power, the fifth lens has positive refractive power, and 1.62≤TTL/ImgH<1.8,
where TTL is a distance along the optical axis from a center of an object-side surface of the first lens to an imaging plane of the camera lens assembly, and ImgH is half of a diagonal length of an effective pixel area on the imaging plane of the camera lens assembly.