# US 10,871,634 B2 · Lens module

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- Number: US 10,871,634 B2
- Document ID: US10871634B2
- Status: Granted
- Kind: B2
- Application number: 16/235,349
- Filed: 2018-12-28
- Published: 2019-05-09
- Granted: 2020-12-22
- Earliest claimed: 2014-03-28
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Kyu Min Chae
- Web page: https://patentgrep.com/patent/US10871634B2

## CPC

- G02B 13/0045: {having five or more lenses}
- G02B 9/64: having more than six components
- G02B 27/0025: {for optical correction, e.g. distorsion, aberration}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A lens module may include a first lens having positive refractive power; a second lens having positive refractive power; a third lens having negative refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having negative refractive power; and a seventh lens having refractive power and one or more inflection points formed in locations thereof not crossing an optical axis, wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are disposed in a sequential order from the first lens to the seventh lens.

## Claims

### Claim 1

A lens module comprising:
a first lens having positive refractive power;
a second lens having positive refractive power;
a third lens having negative refractive power;
a fourth lens having refractive power;
a fifth lens having refractive power;
a sixth lens having positive refractive power, and a convex image-side surface in an optical axis; and
a seventh lens having refractive power of which an object-side surface is convex and one or more inflection points formed in locations thereof not crossing an optical axis,
wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens and the seventh lens are disposed in a sequential order from the first lens to the seventh lens.

### Claim 2 (depends on 1)

The lens module of claim 1, wherein the fourth lens has negative refractive power.

### Claim 3 (depends on 1)

The lens module of claim 1, wherein the seventh lens has negative refractive power.

### Claim 4 (depends on 1)

The lens module of claim 1, wherein an object-side surface of the first lens is convex, and an image-side surface thereof is concave.

### Claim 5 (depends on 1)

The lens module of claim 1, wherein both surfaces of the second lens are convex.

### Claim 6 (depends on 1)

The lens module of claim 1, wherein an image-side surface of the third lens is concave.

### Claim 7 (depends on 1)

The lens module of claim 1, wherein an object-side surface of the sixth lens is concave, and an image-side surface thereof is convex.

### Claim 8 (depends on 1)

The lens module of claim 1, wherein an image-side surface thereof is concave.

### Claim 9 (depends on 1)

The lens module of claim 1, wherein it satisfies the following Conditional Equation:
V1−V3>20 [Conditional Equation]
where V1 is an Abbe number of the first lens, and V3 is an Abbe number of the third lens.

### Claim 10 (depends on 1)

The lens module of claim 1, wherein it satisfies the following Conditional Equation:
V2−V3>20 [Conditional Equation]
where V2 is an Abbe number of the second lens, and V3 is an Abbe number of the third lens.

### Claim 11 (depends on 1)

The lens module of claim 1, wherein it satisfies the following Conditional Equation:
f1>f2 [Conditional Equation]
where f1 is a focal length of the first lens, and f2 is a focal length of the second lens.

### Claim 12 (depends on 1)

The lens module of claim 1, wherein it satisfies the following Conditional Equation:
D12>D23 [Conditional Equation]
where D12 is a distance from an image-side surface of the first lens to an object-side surface of the second lens, and D23 is a distance from an image-side surface of the second lens to an object-side surface of the third lens.