Reflecting module for OIS and camera module including the same

Patent metadata

Field	Value
Publication number	US-11579463-B2
Application number	US-202017134080-A
Country	US
Kind code	B2
Filing date	Dec 24, 2020
Priority date	Feb 15, 2017
Publication date	Feb 14, 2023
Grant date	Feb 14, 2023

Abstract

There are provided a reflecting module for optical image stabilization (OIS) and a camera module including the same. The reflecting module for OIS includes a housing to which a board is coupled and including a through-hole, a moving holder connected to the housing by an elastic member, a reflecting member provided on the moving holder, and a driving part providing driving force to the moving holder to move the moving holder relatively with respect to the housing, wherein the elastic member includes a housing fixing part fixed to the housing and a holder fixing part fixed to the moving holder, wherein the driving part includes a magnet provided on the moving holder and a coil provided on the board and opposing the magnet, and wherein the coil is disposed to oppose the magnet through the through-hole.

First claim

What is claimed is:

1. A reflecting module for optical image stabilization (OIS), comprising:
a housing to which a board is coupled and including a through-hole;
a moving holder connected to the housing by an elastic member;
a reflecting member provided on the moving holder; and
a driving part providing driving force to the moving holder to move the moving holder relatively with respect to the housing,
wherein the elastic member includes a housing fixing part fixed to the housing housing, a holder fixing part fixed to the moving holder, and a moving spring connecting the housing fixing part and the holder fixing part to each other,
wherein the driving part includes a magnet provided on the moving holder and a coil provided on the board and opposing the magnet,
wherein the coil is disposed to oppose the magnet through the through-hole,
wherein the moving spring connects the surfaces of the housing fixing part and the holder fixing part facing each other,
wherein the moving spring includes a first spring including a plurality of springs extending in a first direction and a second spring including a plurality of springs extending in a second direction,
wherein the first direction and the second direction intersect each other, and
wherein a connection portion between the first spring and the second spring has a bent shape.

2. The reflecting module of claim 1 , wherein the board is coupled to an external surface of the housing to expose the coil to an interior of the housing through the through-hole.

3. The reflecting module of claim 1 , further comprising a position sensor provided on the board to oppose the magnet to sense a position of the moving holder.

4. The reflecting module of claim 3 , wherein the position sensor is a hall sensor.

5. The reflecting module of claim 1 , wherein the reflecting member is a prism.

6. The reflecting module of claim 1 , further comprising a reinforcing plate attached to the board.

7. The reflecting module of claim 1 , wherein the moving holder is provided in the housing to be suspended by the elastic member.

8. The reflecting module of claim 1 , wherein the elastic member is provided to extend to both lateral surfaces of the moving holder.

9. The reflecting module of claim 1 , wherein a moving spring moving the moving holder in the elastic member extends in a direction substantially parallel to a reflection surface of the reflecting member.

10. The reflecting module of claim 1 , further comprising an opening through which the reflecting member is exposed and a cover covering the moving holder.

11. The reflecting module of claim 1 , wherein the first spring and the second spring extend in a direction perpendicular to each other.

12. A camera module, comprising:
a lens module including a plurality of lenses; and
the reflecting module for OIS of claim 1 , disposed in front of the lens module and altering a path of light incident thereinto so that the light is directed toward the lens module.

Assignees

• Samsung Electro Mech

Inventors

• Jeong Bong Won
• Kim Jae Kyung
• Yoon Young Bok
• Park Hyun Kag

Classifications

• H02K41/031

  of the permanent magnet type · CPC title

• G02B27/646 Primary

  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) · CPC title

• G03B2205/0023

  by tilting or inclining one or more optical elements with respect to the optical axis · CPC title

• G03B3/06 Primary

  using movable reflectors to alter length of light path · CPC title

• H02K33/12

  with armatures moving in alternate directions by alternate energisation of two coil systems · CPC title