# US 10,481,410 B2 · Reflecting module for OIS and camera module including the same

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- Number: US 10,481,410 B2
- Document ID: US10481410B2
- Status: Granted
- Kind: B2
- Application number: 15/813,415
- Filed: 2017-11-15
- Published: 2018-09-13
- Granted: 2019-11-19
- Earliest claimed: 2017-03-08
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Jae Kyung Kim; Bong Won Jeong; Young Bok Yoon
- Web page: https://patentgrep.com/patent/US10481410B2

## 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)}
- G02B 7/09: adapted for automatic focusing or varying magnification
- G02B 13/0065: {having a beam-folding prism or mirror}
- 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 23/685: {performed by mechanical compensation}
- H04N 23/687: {by shifting the lens or sensor position}
- G03B 2205/0015: by displacing one or more optical elements normal to the optical axis
- G03B 2205/0069: using electromagnetic actuators, e.g. voice coils
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- 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

A reflecting module for optical image stabilization (OIS) includes: a housing; a moving holder supported in the housing by an elastic member; a reflecting member provided on the moving holder; and a driving part configured to provide driving force to the moving holder, wherein the driving part includes: two magnets having a shorter length in a first axial direction than in a second axial direction perpendicular to the first axial direction and disposed on the moving holder to be spaced apart from each other in the first axial direction; and four or more coils disposed on the housing, the four or more coils being disposed as two sets, respectively including a first set of two or more coils aligned in the second axial direction and spaced apart from each other in the first axial direction to face the two magnets, respectively.

## Claims

### Claim 1

A reflecting module for optical image stabilization (OIS), comprising:
a housing comprising an internal space;
a moving holder supported in the internal space of the housing by an elastic member;
a reflecting member disposed on the moving holder; and
a driving part configured to provide driving force to the moving holder such that the moving holder moves relative to the housing,
wherein the driving part comprises,
two magnets having a shorter length in a first axial direction than in a second axial direction perpendicular to the first axial direction and disposed on the moving holder to be spaced apart from each other in the first axial direction, and
four or more coils disposed on the housing, the four or more coils being disposed as two sets, comprising a first set of two or more coils aligned in the second axial direction and spaced apart from each other in the first axial direction, facing the two magnets.

### Claim 2 (depends on 1)

The reflecting module for OIS of claim 1, wherein the two sets of coils comprise a second set of two or more coils aligned in the second axial direction and spaced apart from each other in the first axial direction facing the two magnets.

### Claim 3 (depends on 1)

The reflecting module for OIS of claim 1, wherein both of the two magnets are configured to rotate the moving holder around a first axis and a second axis.

### Claim 4 (depends on 1)

The reflecting module for OIS of claim 1, wherein one side of the two magnets in the second axial direction are North poles, and the other side of the two magnets in the second axial direction are South poles.

### Claim 5 (depends on 4)

The reflecting module for OIS of claim 4, wherein the four or more coils are disposed in positions corresponding to the North poles and the South poles of the two magnets.

### Claim 6 (depends on 1)

The reflecting module for OIS of claim 1, wherein the elastic member comprises a first spring extended in the first axial direction and a second spring extended in the second axial direction, perpendicular to the first axial direction, wherein the first spring and the second spring are integral with each other.

### Claim 7 (depends on 6)

The reflecting module for OIS of claim 6, wherein the first spring comprises one or more springs extended in the first axial direction, and the second spring comprises one or more springs extended in the second axial direction.

### Claim 8 (depends on 6)

The reflecting module for OIS of claim 6, wherein the elastic member comprises a connection portion between the first spring and the second spring having a bent or angular shape.

### Claim 9 (depends on 1)

The reflecting module for OIS of claim 1, wherein the elastic member is substantially entirely coplanar.

### Claim 10 (depends on 1)

The reflecting module for OIS of claim 1, wherein the elastic member is disposed on a lower surface of the moving holder, and the reflecting member is disposed on an upper surface of the moving holder.

### Claim 11 (depends on 1)

The reflecting module for OIS of claim 1, wherein the elastic member comprises two portions.

### Claim 12 (depends on 1)

The reflecting module for OIS of claim 1, wherein the elastic member is entirely one piece.

### Claim 13 (depends on 1)

The reflecting module for OIS of claim 1, wherein the two magnets are disposed in seating grooves disposed in a lower surface of the moving holder.

### Claim 14 (depends on 1)

A camera module comprising:
a lens module comprising lenses; and
the reflecting module for OIS of claim 1 disposed in front of the lens module and configured to change a path of light incident onto the reflecting module such that the light is directed toward the lens module.

### Claim 15 (depends on 14)

A portable electronic device comprising the camera module of claim 14.

### Claim 16 (depends on 15)

The portable electronic device of claim 15, wherein an optical axis of the lens module is perpendicular to a thickness direction of the portable electronic device.
