# US 10,761,289 B2 · Camera lens assembly and camera device

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- Number: US 10,761,289 B2
- Document ID: US10761289B2
- Status: Granted
- Kind: B2
- Application number: 15/766,288
- Filed: 2017-04-20
- Published: 2019-09-12
- Granted: 2020-09-01
- Earliest claimed: 2016-12-05
- Assignees: Zhejiang Sunny Optical Co., Ltd
- Applicants: Zhejiang Sunny Optical Co., Ltd
- Inventors: Kaiyuan Zhang; Jianke Wenren; Ming Li
- Web page: https://patentgrep.com/patent/US10761289B2

## CPC

- G02B 7/021: {for more than one lens}
- G02B 9/62: having six components only
- G02B 13/0045: {having five or more lenses}
- H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A camera lens assembly is provided. The camera lens assembly, comprises sequentially, from an object side to an image side along an optical axis, a first lens, multiple subsequent lenses, and a photosensitive element arranged on an image plane, wherein the first lens has a negative focal power and an object side surface of the first lens is a concave surface; and an axial distance from the object side surface of the first lens to the image plane TTL and ImgH, ImgH being half a diagonal length of an effective pixel area of the photosensitive element, satisfy: 1.5<TTL/ImgH<1.7.

## Claims

### Claim 1

A camera lens assembly, comprising 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, and a photosensitive element arranged on an image plane, wherein,
the first lens has a negative focal power, and an object side surface of the first lens is a concave surface;
an object side surface of the third lens is a concave surface;
an object side surface of the fourth lens is a concave surface; and
an axial distance from the object side surface of the first lens to the image plane TTL and ImgH, ImgH being half a diagonal length of an effective pixel area of the photosensitive element, satisfy: 1.5<TTL/ImgH<1.7.

### Claim 2 (depends on 1)

The camera lens assembly according to claim 1, wherein:
the second lens has a positive focal power or a negative focal power, wherein an image side surface of the second lens is a concave surface;
the third lens has a positive focal power, wherein an image side surface of the third lens is a convex surface; and
the fourth lens has a negative focal power;
the fifth lens has a positive focal power, wherein an object side surface of fifth lens is a concave surface, and an image side surface of the fifth lens is a convex surface; and
the sixth lens has a positive focal power or a negative focal power.

### Claim 3 (depends on 2)

The camera lens assembly according to claim 2, wherein
a half of a maximum field-of-view angle HFOV of the camera lens assembly satisfies: HFOV>50°.

### Claim 4 (depends on 2)

The camera lens assembly according to claim 2, wherein
a center thickness of the second lens on the optical axis CT2 and a center thickness of the third lens on the optical axis CT3 satisfy: 1<CT2/CT3<1.5.

### Claim 5 (depends on 2)

The camera lens assembly according to claim 2, wherein
an effective focal length of the fourth lens f4 and a total effective focal length of the camera lens assembly f satisfy: −2<f4/f<−1.

### Claim 6 (depends on 2)

The camera lens assembly according to claim 2, wherein
an effective focal length of the third lens f3 and an effective focal length of the fifth lens f5 satisfy: 0.4<f3/f5<1.

### Claim 7 (depends on 2)

The camera lens assembly according to claim 2, wherein
an axial distance between an intersection point of the object side surface of the fifth lens and the optical axis and a vertex of an effective radius of the object side surface of the fifth lens SAG51 and the axial distance from the object side surface of the first lens to the image plane TTL satisfy: −0.2<SAG51/TTL<−0.1.

### Claim 8 (depends on 2)

The camera lens assembly according to claim 2, wherein
a radius of curvature of the object side surface of the fifth lens R9 and a radius of curvature of the image side surface of the fifth lens R10 satisfy: 1<R9/R10<1.5.

### Claim 9 (depends on 2)

The camera lens assembly according to claim 2, wherein
an axial spacing distance between the third lens and the fourth lens T34 and an axial spacing distance between the fifth lens and the sixth lens T56 satisfy: 0.5<T34/T56<1.2.

### Claim 10 (depends on 2)

The camera lens assembly according to claim 2, wherein
an effective radius of the object side surface of the first lens DT11 and an effective radius of the image side surface of the fifth lens DT52 satisfy: 0.5<DT11/DT52<1.1.

### Claim 11

A camera lens assembly, comprising sequentially, from an object side to an image side along an optical axis:
a first lens, having a negative focal power, and an object side surface of the first lens being a concave surface;
a second lens, having a positive focal power or a negative focal power, and an image side surface of the second lens being a concave surface;
a third lens, having a positive focal power, and an object side surface of the third lens being a concave surface, and an image side surface of the third lens being a convex surface;
a fourth lens, having a negative focal power, and an object side surface of the fourth lens being a concave surface;
a fifth lens, having a positive focal power, and an object side surface of the fifth lens being a concave surface, and an image side surface of the fifth lens being a convex surface; and
a sixth lens, having a positive focal power or a negative focal power,
an axial spacing distance between the third lens and the fourth lens T34 and an axial spacing distance between the fifth lens and the sixth lens T56 satisfying: 0.5<T34/T56<1.2.

### Claim 12 (depends on 11)

The camera lens assembly according to claim 11, further comprising:
a photosensitive element, arranged on an image plane,
wherein an axial distance from the object side surface of the first lens to the image plane TTL and ImgH, ImgH being half a diagonal length of an effective pixel area of the photosensitive element, satisfy: 1.5<TTL/ImgH<1.7.

### Claim 13 (depends on 11)

The camera lens assembly according to claim 11, wherein
a half of a maximum field-of-view angle HFOV of the camera lens assembly satisfies: HFOV>50°.

### Claim 14 (depends on 11)

The camera lens assembly according to claim 11, wherein
a center thickness of the second lens on the optical axis CT2 and a center thickness of the third lens on the optical axis CT3 satisfy: 1<CT2/CT3<1.5.

### Claim 15 (depends on 11)

The camera lens assembly according to claim 11, wherein
an effective focal length of the fourth lens f4 and a total effective focal length of the camera lens assembly f satisfy: −2<f4/f<−1.

### Claim 16 (depends on 11)

The camera lens assembly according to claim 11, wherein
an effective focal length of the third lens f3 and an effective focal length of the fifth lens f5 satisfy: 0.4<f3/f5<1.

### Claim 17 (depends on 11)

The camera lens assembly according to claim 11, wherein
an axial distance between an intersection point of the object side surface of the fifth lens and the optical axis and a vertex of an effective radius of the object side surface of the fifth lens SAG51 and the axial distance from the object side surface of the first lens to the image plane TTL satisfy: −0.2<SAG51/TTL<−0.1.

### Claim 18 (depends on 11)

The camera lens assembly according to claim 11, wherein
a radius of curvature of the object side surface of the fifth lens R9 and a radius of curvature of the image side surface of the fifth lens R10 satisfy: 1<R9/R10<1.5.

### Claim 19 (depends on 11)

The camera lens assembly according to claim 11, wherein
an effective radius of the object side surface of the first lens DT11 and an effective radius of the image side surface of the fifth lens DT52 satisfy: 0.5<DT11/DT52<1.1.

### Claim 20

A camera device, equipped with a camera lens assembly, the camera lens assembly comprising 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, and a photosensitive element arranged on an image plane, wherein,
the first lens has a negative focal power, and an object side surface of the first lens is a concave surface;
object side surface of the third lens is a concave surface;
an object side surface of the fourth lens is a concave surface;
an axial distance from the object side surface of the first lens to the image plane TTL and ImgH, ImgH being half a diagonal length of an effective pixel area of the photosensitive element, satisfy: 1.5<TTL/ImgH<1.7.