# US 11,029,492 B2 · Lens module and electronic device including gas escape structure

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- Number: US 11,029,492 B2
- Document ID: US11029492B2
- Status: Granted
- Kind: B2
- Application number: 16/560,004
- Filed: 2019-09-04
- Published: 2020-06-18
- Granted: 2021-06-08
- Earliest claimed: 2018-12-15
- Assignees: Triple Win Technology(Shenzhen) Co. Ltd.
- Applicants: Triple Win Technology (Shenzhen) Co. Ltd.
- Inventors: Kun Li; Shin-Wen Chen; Long-Fei Zhang; Xiao-Mei Ma
- Web page: https://patentgrep.com/patent/US11029492B2

## CPC

- G02B 13/0015: {characterised by the lens design}
- G02B 6/4427: {Pressure resistant cables, e.g. undersea cables}
- H04N 23/54: Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
- H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof
- G02B 5/20: Filters (polarising elements G02B5/30)
- G02B 13/0025: {having one lens only}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A lens module includes a circuit board, a carrier, and an optical filter. The carrier is fixed on a surface of the circuit board. The carrier defines a through hole. The optical filter is mounted on the carrier. The carrier defines at least one gas escape structure. A receiving space is between the optical filter and the circuit board, and the gas escape structure communicates with the receiving space to release water vapor in the receiving space and allow air pressure equalization and thus the relief of stress. The disclosure further provides an electronic device including the lens module.

## Claims

### Claim 1

A lens module comprising:
a circuit board;
a carrier fixed on the circuit board and defining a surface away from the circuit board, the surface of the carrier defining a through hole, a groove adjacent to the through hole, and a gas escape structure;
an optical filter; and
a lens holder mounted on the surface of the carrier;
wherein the optical filter is fixed in the groove through an adhesive layer, the optical filter and the circuit board close opposite ends of the through hole to form a receiving space, the gas escape structure communicates with the receiving space to allow the release of water vapor generated in the receiving space;
the gas escape structure comprises a first gas escape structure portion and a second gas escape structure portion, the first gas escape structure portion is defined on a sidewall of the groove and defines an opening on the surface of the carrier, the second escape structure portion is defined at a bottom of the groove and communicates with the first escape structure portion, the lens holder closes the opening.

### Claim 2 (depends on 1)

The lens module of claim 1, wherein the circuit board is a rigid-flexible board and comprises
a first rigid board portion,
a second rigid board portion, a first surface of the second rigid board portion carrying an electrical connection portion, and
a flexible board portion arranged between the first board rigid portion and the second rigid board portion.

### Claim 3 (depends on 2)

The lens module of claim 2, wherein a first surface of the first rigid board portion carries an image sensor and a plurality of electronic components, the image sensor, the plurality of electronic components, and the electrical connection portion are located on a same surface of the circuit board, the image sensor is received in the receiving space.

### Claim 4 (depends on 3)

The lens module of claim 3, wherein the carrier is disposed on the first surface of the first rigid board portion of the circuit board.

### Claim 5 (depends on 3)

The lens module of claim 3, wherein the first rigid board portion further defines a second surface opposite to the first surface of the first rigid board portion, the second surface of the first rigid board portion carries a reinforcing plate.

### Claim 6 (depends on 1)

The lens module of claim 1, wherein the lens module further comprises a lens, the lens is mounted in the lens holder.

### Claim 7 (depends on 6)

The lens module of claim 6, wherein the lens holder has a rectangular structure and defines a receiving hole, the lens is partially received in the receiving hole.

### Claim 8 (depends on 7)

The lens module of claim 7, wherein the lens comprises a first lens portion partially received in the receiving hole and a second lens portion, a diameter of the first lens portion is greater than a diameter of the second lens portion, the lens is assembled or is integrally formed.

### Claim 9

An electronic device comprising a lens module, the lens module comprising:
a circuit board;
a carrier fixed on the circuit board and defining a surface away from the circuit board, the surface of the carrier defining a through hole, a groove adjacent to the through hole, and a gas escape structure;
an optical filter; and
a lens holder mounted on the surface of the carrier;
wherein the optical filter is fixed in the groove through an adhesive layer, the optical filter and the circuit board close opposite ends of the through hole to form a receiving space, the gas escape structure communicates with the receiving space to allow the release of water vapor generated in the receiving space;
the gas escape structure comprises a first gas escape structure portion and a second gas escape structure portion, the first gas escape structure portion is defined on a sidewall of the groove and defines an opening on the surface of the carrier, the second escape structure portion is defined at a bottom of the groove and communicates with the first escape structure portion, the lens holder closes the opening.

### Claim 10 (depends on 9)

The electronic device of claim 9, wherein the circuit board is a rigid-flexible board and comprises
a first rigid board portion,
a second rigid board portion, a first surface of the second rigid board portion carrying an electrical connection portion, and
a flexible board portion arranged between the first board rigid portion and the second rigid board portion.

### Claim 11 (depends on 10)

The electronic device of claim 10, wherein a first surface of the first rigid board portion carries an image sensor and a plurality of electronic components, the image sensor, the plurality of electronic components, and the electrical connection portion are located on a same surface of the circuit board, the image sensor is received in the receiving space.

### Claim 12 (depends on 11)

The electronic device of claim 11, wherein the carrier is disposed on the first surface of the first rigid board portion of the circuit board.

### Claim 13 (depends on 11)

The electronic device of claim 11, wherein the first rigid board portion further defines a second surface opposite to the first surface of the first rigid board portion, the second surface of the first rigid board portion carries a reinforcing plate.

### Claim 14 (depends on 9)

The electronic device of claim 9, wherein the lens module further comprises a lens, the lens is mounted in the lens holder.

### Claim 15 (depends on 14)

The electronic device of claim 14, wherein the lens holder has a rectangular structure and defines a receiving hole, the lens is partially received in the receiving hole.

### Claim 16 (depends on 15)

The electronic device of claim 15, wherein the lens comprises a first lens portion partially received in the receiving hole and a second lens portion, a diameter of the first lens portion is greater than a diameter of the second lens portion, the lens is assembled or is integrally formed.
