# US 12,222,525 B2 · Camera module

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- Number: US 12,222,525 B2
- Document ID: US12222525B2
- Status: Granted
- Kind: B2
- Application number: 17/419,135
- Filed: 2019-12-27
- Published: 2022-04-14
- Granted: 2025-02-11
- Earliest claimed: 2018-12-28
- Assignees: LG Innotek Co., Ltd.
- Applicants: LG Innotek Co., Ltd.
- Inventors: Tae Jin Jung; Sang Jun Min
- Web page: https://patentgrep.com/patent/US12222525B2

## CPC

- G02B 3/14: of variable focal length
- G02B 7/026: {using retaining rings or springs (G02B7/027 takes precedence)}
- G02B 7/08: adapted to co-operate with a remote control mechanism
- G02B 13/0075: {having an element with variable optical properties}
- G02B 26/005: {based on electrowetting}
- G02B 27/646: {compensating for small deviations, e.g. due to vibration or shake (movement of one or more optical elements for control of motion blur in cameras, projectors or printers G03B2205/0007; image stabilisation in cameras peculiar to the presence or use of an electronic image sensor H04N23/68)}
- G03B 3/10: Power-operated focusing
- G03B 5/00: Adjustment of optical system relative to image or object surface other than for focusing
- G03B 5/02: Lateral adjustment of lens
- G03B 13/36: Autofocus systems
- G03B 30/00: Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
- G02B 2207/115: Electrowetting
- G03B 2205/0007: Movement of one or more optical elements for control of motion blur
- G03B 2205/0015: by displacing one or more optical elements normal to the optical axis
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)

## Abstract

The present exemplary embodiment relates to a camera module comprising: a housing; a liquid lens disposed in the housing; a magnet disposed in the housing; a base disposed and spaced apart from the housing; a substrate comprising a coil facing the magnet and disposed on the base; a plurality of wires connected to the housing and the substrate; and a connection part connecting the liquid lens and at least one wire of the plurality of wires, wherein the liquid lens and the substrate are electrically connected to each other through the connection part and the at least one wire.

## Claims

### Claim 1

A camera module comprising:
a housing;
a liquid lens disposed on the housing;
a magnet disposed on the housing;
a base disposed to be spaced apart from the housing;
a substrate disposed on the base and comprising a coil disposed at a position corresponding to that of the magnet;
a plurality of wires connected to the housing and the substrate;
a printed circuit board electrically connected to the substrate; and
a connection part connecting the liquid lens and at least one wire of the plurality of wires,
wherein the liquid lens and the substrate are electrically connected to each other through the connection part and the at least one wire,
wherein the housing comprises a first lateral wall, a second lateral wall disposed opposite to the first lateral wall, and a third lateral wall and a fourth lateral wall disposed opposite to each other between the first lateral wall and the second lateral wall,
wherein the magnet comprises a first magnet disposed on the first lateral wall, a second magnet disposed on the second lateral wall, a third magnet disposed on the third lateral wall, and a fourth magnet disposed on the fourth lateral wall,
wherein the coil of the substrate comprises a first coil facing the first magnet, a second coil facing the second magnet, a third coil facing the third magnet, and a fourth coil facing the fourth magnet,
wherein a first Hall sensor is disposed on the substrate at a position corresponding to that of the first magnet or that of the second magnet;
wherein a second Hall sensor is disposed on the substrate at a position corresponding to that of the third magnet or that of the fourth magnet,
wherein the substrate comprises a plurality of terminals, and
wherein the plurality of terminals of the substrate comprise a terminal electrically connected to the liquid lens, a terminal electrically connected to the first coil and the second coil, a terminal electrically connected to the third coil and the fourth coil, a terminal electrically connected to the first Hall sensor, and a terminal electrically connected to the second Hall sensor.

### Claim 2 (depends on 1)

The camera module of claim 1, wherein the connection part comprises a conductive line disposed on one surface of the housing,
wherein one end portion of the conductive line is connected to a terminal of the liquid lens, and
wherein the other end portion of the conductive line is connected to the at least one wire.

### Claim 3 (depends on 2)

The camera module of claim 2, wherein the conductive line is printed or formed in a line shape on a surface of the housing, and
wherein the conductive line and the terminal of the liquid lens, and the conductive line and the wire are connected by at least any one of a conductive epoxy and a solder ball.

### Claim 4 (depends on 1)

The camera module of claim 1, wherein the liquid lens comprises a first terminal and a second terminal, and
wherein the plurality of wires comprise a first wire connected to the first terminal of the liquid lens and a second wire connected to the second terminal of the liquid lens.

### Claim 5 (depends on 1)

The camera module of claim 1, wherein the housing comprises a first lateral wall, a second lateral wall disposed opposite to the first lateral wall, and a third lateral wall and a fourth lateral wall disposed opposite to each other between the first lateral wall and the second lateral wall,
wherein the magnet comprises a first magnet disposed at a first corner where the first lateral wall and the third lateral wall meet, a second magnet disposed at a second corner where the first lateral wall and the fourth lateral wall meet, a third magnet disposed at a third corner where the second lateral wall and the fourth lateral wall meet, and a fourth magnet disposed in a fourth corner where the second lateral wall and the third lateral wall meet, and
wherein the coil of the substrate comprises a first coil facing the first magnet, a second coil facing the second magnet, a third coil facing the third magnet, and a fourth coil facing the fourth magnet.

### Claim 6 (depends on 1)

The camera module of claim 1, comprising:
a cover comprising an upper plate comprising a hole and a lateral plate extending from the upper plate and coupled to the base,
wherein the housing is disposed in a space formed by the cover and the base.

### Claim 7 (depends on 1)

The camera module of claim 1, wherein the connection part is formed on a surface of the housing as a conductive line.

### Claim 8 (depends on 7)

The camera module of claim 7, wherein the conductive line is formed by a material different from that of the housing.

### Claim 9 (depends on 1)

The camera module of claim 1, wherein the plurality of terminals of the substrate comprise a total of fourteen terminals, and
wherein the fourteen terminals comprise two terminals electrically connected to the liquid lens, two terminals electrically connected to the first coil and the second coil, two terminals electrically connected to the third coil and the fourth coil, four terminals electrically connected to the first hall sensor, and four terminals electrically connected to the second Hall sensor.

### Claim 10 (depends on 1)

The camera module of claim 1, comprising a holder disposed between the housing and the liquid lens,
wherein the liquid lens comprises a first electrode formed on an upper surface of the liquid lens and a second electrode formed on a lower surface of the liquid lens, and
wherein the holder is provided with a first terminal connecting the first electrode and the connecting part, and a second terminal connecting the second electrode and the connection part.

### Claim 11 (depends on 1)

The camera module of claim 1, wherein the liquid lens is fixed to the housing.

### Claim 12 (depends on 1)

The camera module of claim 1, wherein the connection part comprises a spring or a plate coupled to the housing.

### Claim 13 (depends on 1)

An optical apparatus comprising:
a main body;
the camera module of claim 1 disposed on the main body; and
a display disposed on the main body and configured to output an image photographed by the camera module.

### Claim 14 (depends on 1)

The camera module of claim 1, wherein the housing and the liquid lens are configured to move together in a direction perpendicular to an optical axis by an interaction between the coil and the magnet when a current is supplied to the coil.

### Claim 15 (depends on 1)

The camera module of claim 1, wherein the liquid lens is configured to perform an auto focus function.