# US 12,216,250 B2 · Optical imaging lens assembly

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- Number: US 12,216,250 B2
- Document ID: US12216250B2
- Status: Granted
- Kind: B2
- Application number: 17/529,880
- Filed: 2021-11-18
- Published: 2022-06-23
- Granted: 2025-02-04
- Earliest claimed: 2020-12-21
- Assignees: Zhejiang Sunny Optics Co., Ltd.
- Applicants: Zhejiang Sunny Optics Co., Ltd
- Inventors: Fujian Dai; Wuchao Xu; Liefeng Zhao
- Web page: https://patentgrep.com/patent/US12216250B2

## CPC

- G02B 13/0045: {having five or more lenses}
- G02B 9/64: having more than six components
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

An optical imaging lens assembly, along an optical axis from an object side to an image side, sequentially includes: first to seventh lenses. The first lens has refractive power; the third lens has a concave object-side surface and a convex image-side surface; the fourth lens has negative refractive power, an object-side surface of the fourth lens is a concave surface, and an image-side surface of the fourth lens is a concave surface; the fifth lens has refractive power. The optical imaging lens assembly satisfies: TTL/ImgH≤1.5; and FOV>100°, where, TTL is a distance from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly on the optical axis, ImgH is half of a diagonal length of an effective pixel area on the imaging plane, and FOV is a maximum field-of-view of the optical imaging lens assembly.

## Claims

### Claim 1

An optical imaging lens assembly, along an optical axis from an object side to an image side, sequentially comprising:
a first lens having refractive power;
a second lens;
a third lens, 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 negative refractive power, an object-side surface of the fourth lens being a concave surface, and an image-side surface of the fourth lens being a concave surface;
a fifth lens having refractive power;
a sixth lens having positive refractive power; and
a seventh lens having negative refractive power,
the optical imaging lens assembly satisfying:
TTL/ImgH≤1.5; and
FOV>100°,
wherein, TTL is a distance from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly on the optical axis, ImgH is half of a diagonal length of an effective pixel area on the imaging plane, and FOV is a maximum field-of-view of the optical imaging lens assembly.

### Claim 2 (depends on 1)

The optical imaging lens assembly according to claim 1, wherein, the fifth lens has a convex object-side surface and a concave image-side surface.

### Claim 3 (depends on 1)

The optical imaging lens assembly according to claim 1, wherein, 0.5<R10/f<1.0,
wherein, R10 is a radius of curvature of an image-side surface of the fifth lens, and f is an effective focal length of the optical imaging lens assembly.

### Claim 4 (depends on 1)

The optical imaging lens assembly according to claim 1, wherein, 3.5<|f4×tan (FOV/2)|/R9<5.5,
wherein, f4 is an effective focal length of the fourth lens, FOV is the maximum field-of-view of the optical imaging lens assembly, and R9 is a radius of curvature of an object-side surface of the fifth lens.

### Claim 5 (depends on 1)

The optical imaging lens assembly according to claim 1, wherein, 2.0≤f12/f≤3.2,
wherein, f12 is a combined focal length of the first lens and the second lens, and f is an effective focal length of the optical imaging lens assembly.

### Claim 6 (depends on 1)

The optical imaging lens assembly according to claim 1, wherein, 2.0≤(CT4+CT5)/T45≤4.5,
wherein, CT4 is a center thickness of the fourth lens along the optical axis, CT5 is a center thickness of the fifth lens along the optical axis, and T45 is a spacing distance between the fourth lens and the fifth lens along the optical axis.

### Claim 7 (depends on 1)

The optical imaging lens assembly according to claim 1, wherein, 3.4≤SAG62/SAG61≤9.8,
wherein, SAG61 is an axial distance from an intersection of an object-side surface of the sixth lens and the optical axis to a vertex of an effective radius of the object-side surface of the sixth lens, and SAG62 is an axial distance from an intersection of an image-side surface of the sixth lens and the optical axis to a vertex of an effective radius of the image-side surface of the sixth lens.

### Claim 8 (depends on 1)

The optical imaging lens assembly according to claim 1, wherein, 3.0≤f2/f123+f3/f123≤4.5,
wherein, f2 is an effective focal length of the second lens, f3 is an effective focal length of the third lens, and f123 is a combined focal length of the first lens, the second lens, and the third lens.

### Claim 9 (depends on 1)

The optical imaging lens assembly according to claim 1, wherein, 0.5≤f2/f3≤1.5,
wherein, f2 is an effective focal length of the second lens, and f3 is an effective focal length of the third lens.

### Claim 10 (depends on 1)

The optical imaging lens assembly according to claim 1, wherein, 1.0≤(CT1+CT2+CT3+CT4+CT5)/(CT6+CT7)≤1.5,
wherein, CT1 is a center thickness of the first lens along the optical axis, CT2 is a center thickness of the second lens along the optical axis, CT3 is a center thickness of the third lens along the optical axis, CT4 is a center thickness of the fourth lens along the optical axis, CT5 is a center thickness of the fifth lens along the optical axis, CT6 is a center thickness of the sixth lens along the optical axis, and CT7 is a center thickness of the seventh lens along the optical axis.

### Claim 11 (depends on 1)

The optical imaging lens assembly according to claim 1, wherein,-4.0≤(R5+R6)/f3≤−1.0,
wherein, R5 is a radius of curvature of the object-side surface of the third lens, R6 is a radius of curvature of the image-side surface of the third lens, and f3 is an effective focal length of the third lens.

### Claim 12 (depends on 1)

The optical imaging lens assembly according to claim 1, wherein, 1.5≤ΣCT/Σ≤2.3,
wherein, ΣAT is a sum of spacing distances of any two adjacent lenses from the first lens to the seventh lens along the optical axis, and ΣCT is a sum of center distances of the first lens to the seventh lens respectively along the optical axis.

### Claim 13

An optical imaging lens assembly, along an optical axis from an object side to an image side, sequentially comprising:
a first lens having refractive power;
a second lens;
a third lens, 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;
a fifth lens having refractive power;
a sixth lens having positive refractive power; and
a seventh lens having negative refractive power,
the optical imaging lens assembly satisfying:
TTL/ImgH≤1.5;
FOV>100°; and
0<(R9+R10)/f<2.0,
wherein, TTL is a distance from an object-side surface of the first lens to an imaging plane of the optical imaging lens assembly on the optical axis, ImgH is half of a diagonal length of an effective pixel area on the imaging plane, FOV is a maximum field-of-view of the optical imaging lens assembly, R9 is a radius of curvature of an object-side surface of the fifth lens, R10 is a radius of curvature of an image-side surface of the fifth lens, and f is an effective focal length of the optical imaging lens assembly.

### Claim 14 (depends on 13)

The optical imaging lens assembly according to claim 13, wherein, 0.5<R10/f<1.0,
wherein, R10 is the radius of curvature of the image-side surface of the fifth lens, and f is the effective focal length of the optical imaging lens assembly.

### Claim 15 (depends on 13)

The optical imaging lens assembly according to claim 13, wherein, 3.5<|f4×tan (FOV/2)|/R9<5.5,
wherein, f4 is an effective focal length of the fourth lens, FOV is the maximum field-of-view of the optical imaging lens assembly, and R9 is the radius of curvature of the object-side surface of the fifth lens.

### Claim 16 (depends on 13)

The optical imaging lens assembly according to claim 13, wherein, 2.0≤f12/f≤3.2,
wherein, f12 is a combined focal length of the first lens and the second lens, and fis the effective focal length of the optical imaging lens assembly.

### Claim 17 (depends on 13)

The optical imaging lens assembly according to claim 13, wherein, 2.0≤(CT4+CT5)/T45≤4.5,
wherein, CT4 is a center thickness of the fourth lens along the optical axis, CT5 is a center thickness of the fifth lens along the optical axis, and T45 is a spacing distance between the fourth lens and the fifth lens along the optical axis.

### Claim 18 (depends on 13)

The optical imaging lens assembly according to claim 13, wherein, 3.4≤SAG62/SAG61≤9.8,
wherein, SAG61 is an axial distance from an intersection of an object-side surface of the sixth lens and the optical axis to a vertex of an effective radius of the object-side surface of the sixth lens, and SAG62 is an axial distance from an intersection of an image-side surface of the sixth lens and the optical axis to a vertex of an effective radius of the image-side surface of the sixth lens.

### Claim 19 (depends on 13)

The optical imaging lens assembly according to claim 13, wherein, 3.0≤f2/f123+f3/f123≤4.5,
wherein, f2 is an effective focal length of the second lens, f3 is an effective focal length of the third lens, and f123 is a combined focal length of the first lens, the second lens, and the third lens.

### Claim 20 (depends on 13)

The optical imaging lens assembly according to claim 13, wherein, 0.5<f2/f3≤1.5,
wherein, f2 is an effective focal length of the second lens, and f3 is an effective focal length of the third lens.