# US 10,481,369 B2 · Lens module

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

- Number: US 10,481,369 B2
- Document ID: US10481369B2
- Status: Granted
- Kind: B2
- Application number: 16/185,071
- Filed: 2018-11-09
- Published: 2019-03-14
- Granted: 2019-11-19
- Earliest claimed: 2014-12-19
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Ho Sik You
- Web page: https://patentgrep.com/patent/US10481369B2

## CPC

- G02B 13/0045: {having five or more lenses}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

A lens module includes a first lens, a second lens, and a third lens comprising a convex object-side surface and a convex image-side surface. The lens module also includes a fourth lens including a concave object-side surface and a concave image-side surface, a fifth lens including a concave object-side surface, and a sixth lens including an inflection point formed on an image-side surface thereof. The first to sixth lenses are sequentially disposed from an object side to an image side.

## Claims

### Claim 1

A lens module, comprising:
a first lens;
a second lens;
a third lens comprising a convex object-side surface and a convex image-side surface;
a fourth lens comprising a concave object-side surface and a concave image-side surface;
a fifth lens comprising a concave object-side surface; and
a sixth lens comprising an inflection point formed on an image-side surface thereof,
wherein the first to sixth lenses are sequentially disposed from an object side to an image side, and
wherein d4/d3<0.7 is satisfied,
where d3 is a thickness of the second lens, and d4 is a distance from an image-side surface of the second lens to an object-side surface of the third lens.

### Claim 2 (depends on 1)

The lens module of claim 1, wherein the first lens comprises a meniscus shape with a convex object-side surface.

### Claim 3 (depends on 1)

The lens module of claim 1, wherein the second lens comprises a meniscus shape with a convex object-side surface.

### Claim 4 (depends on 1)

The lens module of claim 1, wherein the fifth lens comprises a convex image-side surface.

### Claim 5 (depends on 1)

The lens module of claim 1, wherein the sixth lens comprises a convex object-side surface.

### Claim 6 (depends on 1)

The lens module of claim 1, wherein the sixth lens comprises a concave image-side surface.

### Claim 7 (depends on 1)

The lens module of claim 1, further comprising:
a stop positioned between the second and third lenses.

### Claim 8 (depends on 1)

The lens module of claim 1, wherein 80<FOV≤120 is satisfied,
where FOV is a field of view of an optical system comprising the first to sixth lenses.

### Claim 9 (depends on 1)

The lens module of claim 1, wherein 15<V2 is satisfied,
where V2 is an Abbe number of the second lens.

### Claim 10 (depends on 1)

The lens module of claim 1, wherein the first lens comprises a negative refractive power, the second lens comprises a positive refractive power or a negative refractive power, the third lens comprises a positive refractive power, the fourth lens comprises a negative refractive power, the fifth lens comprises a positive refractive power, and the sixth lens comprises a negative refractive power.

### Claim 11 (depends on 1)

The lens module of claim 1, wherein the third lens has a refractive power stronger than a refractive power of the fifth lens.

### Claim 12 (depends on 1)

The lens module of claim 1, wherein the third lens has a refractive power stronger than a refractive power of the second lens and fifth lens.

### Claim 13 (depends on 1)

The lens module of claim 1, wherein the image-side surface of the sixth lens is concave in a paraxial region and gradually curves to be convex at an edge portion thereof.

### Claim 14 (depends on 13)

The lens module of claim 13, wherein 1.0<(r3+r4)/(r3−r4) is satisfied,
where r3 is a radius of curvature of an object-side surface of the second lens, and
r4 is a radius of curvature of an image-side surface of the second lens.

### Claim 15

A lens module, comprising:
a first lens comprising a negative refractive power;
a second lens comprising a negative refractive power;
a third lens comprising a positive refractive power;
a fourth lens comprising a negative refractive power;
a fifth lens comprising a refractive power; and
a sixth lens comprising a negative refractive power,
wherein the first to sixth lenses are sequentially disposed from an object side to an image side, and
wherein d4/d3<0.7 is satisfied,
where d3 is a thickness of the second lens, and d4 is a distance from an image-side surface of the second lens to an object-side surface of the third lens.

### Claim 16 (depends on 15)

The lens module of claim 15, wherein the fifth lens comprises a positive refractive power.

### Claim 17 (depends on 15)

The lens module of claim 15, wherein the fourth lens comprises a concave object-side surface.

### Claim 18 (depends on 15)

The lens module of claim 15, wherein the third lens is a convex object-side surface and a convex image-side surface.

### Claim 19 (depends on 15)

The lens module of claim 15, wherein the fourth lens comprises a concave image-side surface.

### Claim 20 (depends on 15)

The lens module of claim 15, wherein 1.0<(r3+r4)/(r3−r4) is satisfied,
where r3 is a radius of curvature of an object-side surface of the second lens, and
r4 is a radius of curvature of an image-side surface of the second lens.