# US 2021/0239999 A1 · Camera module

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- Number: US 2021/0239999 A1
- Document ID: US20210239999A1
- Status: Published application
- Kind: A1
- Application number: 16/972,768
- Filed: 2019-06-07
- Published: 2021-08-05
- Earliest claimed: 2018-06-08
- Assignees: LG Innotek Co., Ltd.
- Applicants: LG Innotek Co., Ltd.
- Inventors: Chang Gyun SON; Ji Sung KIM; Soo Min JEONG
- Web page: https://patentgrep.com/patent/US20210239999A1

## CPC

- 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 17/17: with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
- G02B 13/0065: {having a beam-folding prism or mirror}
- G02B 26/004: {based on a displacement or a deformation of a fluid}
- 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
- H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof
- H04N 23/57: Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
- H04N 23/58: Means for changing the camera field of view without moving the camera body, e.g. nutating or panning of optics or image sensors
- H04N 23/685: {performed by mechanical compensation}
- H04N 23/686: {with a variable apex prism}
- G03B 2205/0023: by tilting or inclining one or more optical elements with respect to the optical axis
- G03B 2205/0046: Movement of one or more optical elements for zooming
- 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)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A camera module according to an embodiment of the present invention includes a prism part configured to convert incident light to parallel light in an optical axis direction, a tilting part through which the parallel light passes and which changes an optical path of the parallel light by changing an angle of a surface through which the parallel light passes, a lens part configured to collect the parallel light of which the optical path is changed, and an image sensor part configured to convert the parallel light collected by the lens part to an electrical signal, wherein the tilting part is disposed between the prism part and the lens part.

## Claims

### Claim 1

A camera module comprising:
a prism part configured to convert incident light to parallel light in an optical axis direction;
a tilting part through which the parallel light passes and which changes an optical path of the parallel light by changing an angle of a surface through which the parallel light passes;
a lens part configured to collect the parallel light of which the optical path is changed; and
an image sensor part configured to convert the parallel light collected by the lens part to an electrical signal, wherein the tilting part is disposed between the prism part and the lens part.

### Claim 2 (depends on 1)

The camera module of claim 1, wherein the tilting part includes:
a first flat glass which is a member formed in a flat shape and including a groove formed therein to accommodate liquid and which is formed of a transparent material allowing the parallel light to pass therethrough;
an optical liquid layer disposed in the groove of the first flat glass and formed of an optical liquid allowing the parallel light to pass therethrough and having liquidity;
a second flat glass which is a member having a flat shape, is disposed on an upper end of the optical liquid layer, and is formed of a transparent material allowing the parallel light to pass therethrough; and
a shaper which is a member having a flat shape, which is coupled to one surface of the second flat glass, and in which a hole allowing the parallel light to pass therethrough is formed in a portion coupled to the second flat glass.

### Claim 3 (depends on 2)

The camera module of claim 2, further comprising a driving part configured to move the tilting part to control a change of an angle of the surface through which the parallel light passes.

### Claim 4 (depends on 3)

The camera module of claim 3, wherein:
the shaper is formed in a rectangular flat shape; and
a plurality of coupling grooves coupled to the driving part are formed at corners of the shaper.

### Claim 5 (depends on 4)

The camera module of claim 4, wherein the driving part includes:
a plurality of magnets coupled to the plurality of coupling grooves; and
a plurality of coils spaced apart from each other by a predetermined distance to correspond to the plurality of magnets and.

### Claim 6 (depends on 5)

The camera module of claim 5, wherein, in the driving part, each of the number of the plurality of magnets and the number of the plurality of coils is two.

### Claim 7 (depends on 4)

The camera module of claim 4, wherein the tilting part is controlled by the driving part coupled to two coupling grooves positioned in a diagonal direction of the shaper.

### Claim 8 (depends on 4)

The camera module of claim 4, wherein the tilting part is controlled by the driving part coupled to two coupling grooves positioned in a long axis direction of the shaper.

### Claim 9 (depends on 4)

The camera module of claim 4, wherein the tilting part is controlled by the driving part coupled to two coupling grooves positioned in a short axis direction of the shaper.

### Claim 10 (depends on 3)

The camera module of claim 3, wherein the driving part moves the shaper to shift the optical path of the parallel light.
