Reflecting module for optical image stabilization (ois) and camera module including the same

Patent metadata

Field	Value
Publication number	US-2025314901-A1
Application number	US-202519242193-A
Country	US
Kind code	A1
Filing date	Jun 18, 2025
Priority date	Feb 8, 2017
Publication date	Oct 9, 2025
Grant date	—

Abstract

A reflecting module for optical image stabilization (OIS) includes a housing; a rotation holder provided in the housing and comprising a reflecting member; a rotation plate provided in the housing between an inner wall of the housing and the rotation holder so that the rotation holder is supported by the inner wall of the housing via the rotation plate; and a driving part configured to apply a driving force to the rotation holder to move the rotation holder.

First claim

What is claimed is:

1 . A camera module, comprising:
a housing having an internal space; a reflecting module comprising a reflecting member and disposed in the internal space; a lens module comprising a plurality of lenses and disposed in the internal space movably in an optical axis direction; a first driving part comprising a first magnet and a first coil, and generating driving force in which the lens module moves in the optical axis direction; and a guide portion provided between the housing and the lens module, and guiding a movement of the lens module in the optical axis direction, wherein the first coil is disposed on the housing to oppose the lens module in a first axis direction perpendicular to an optical axis, and a yoke is disposed on the housing to oppose the lens module in a second axis direction perpendicular to both the optical axis and a first axis.

2 . The camera module of claim 1 ,
wherein the lens module is supported on the housing interposed the guide portion therebetween by a magnetic attractive force acting in the second axis direction.

3 . The camera module of claim 2 , wherein the first magnet is disposed on the lens module, and
the first magnet opposes to the first coil in the first axis direction and the first magnet opposes to the yoke in the second axis direction.

4 . The camera module of claim 1 , wherein the reflecting module is rotatable with respect to the first axis and a second axis, and
wherein the camera module comprises a second driving part comprising a second magnet, a third magnet, a second coil and a third coil, and generating driving force in which the reflecting module rotates with respect to the first axis and the second axis.

5 . The camera module of claim 4 , wherein the second magnet and the third magnet are disposed on the reflecting module, and the second coil and the third coil are disposed on the housing.

6 . The camera module of claim 5 , wherein the second magnet and the second coil face in the second axis direction each other, and
the third magnet and the third coil face in the first axis direction each other.

7 . The camera module of claim 5 , wherein the housing comprises a plurality of through-holes exposing the first coil, the second coil and the third coil to the internal space, and
the first coil, the second coil and the third coil face the first magnet, the second magnet and the third magnet directly through the plurality of through-holes.

8 . The camera module of claim 4 , wherein the first coil, the second coil and the third coil are disposed on the housing in a state mounted on a main board.

9 . The camera module of claim 8 , wherein the first coil, the second coil and the third coil are mounted on the same main board.

10 . The camera module of claim 8 , wherein the first driving part further comprises a first position sensor detecting a position of the lens module, and
wherein the first position sensor is mounted on the main board disposed inside the first coil.

11 . The camera module of claim 8 , wherein the second driving part further comprises a second position sensor and a third position sensor detecting a position of the reflecting module, and
wherein the second position sensor and the third position sensor are mounted on the main board disposed inside the second coil and the third coil, respectively.

12 . The camera module of claim 4 , wherein the camera module further comprises ball bearings disposed between the housing and the reflecting module, and supporting a rotation of the reflecting module, and
wherein the reflecting module is supported on the housing interposed the ball bearings therebetween.

13 . The camera module of claim 12 , wherein the ball bearings comprise:
two first ball bearings arranged along the first axis and supporting the rotation of the reflecting module with respect to the first axis; and two second ball bearings arranged along the second axis and supporting the rotation of the reflecting module with respect to the second axis.

14 . The camera module of claim 13 , wherein the reflecting module comprises:
a rotation holder in which the reflecting member is mounted, and rotating with respect to the first axis and the second axis; and a rotation plate disposed between the housing and the rotation holder, and rotating with respect to the first axis together with the rotation holder.

15 . The camera module of claim 14 , wherein the first ball bearings are disposed between the housing and the rotation plate, and
the second ball bearings are disposed between the rotation plate and the rotation holder.

16 . The camera module of claim 12 , wherein the reflecting module is supported on the housing by a magnetic attractive force acting in the optical axis direction.

17 . The camera module of claim 16 , wherein a pulling magnet is disposed on the reflecting module, and a pulling yoke is disposed on the housing to face the pulling magnet in the optical axis.

18 . The camera module of claim 1 , wherein the camera module further comprises a stopper disposed in the housing disposed between the reflecting module and the lens module.

19 . The camera module of claim 18 , wherein at least a portion of the stopper is formed of an elastic material.

20 . The camera module of claim 18 , wherein the housing comprises a housing wall protruding from both side surfaces of the housing to a space between a space where the reflecting module is disposed and a space in where the lens module is disposed, and
the stopper is coupled to the housing wall.

21 . A camera module, comprising:
a housing having an internal space; a reflecting module comprising a reflecting member, and disposed rotatably in the internal space; a lens module comprising a plurality of lenses, and disposed in the internal space movably in an optical axis direction; a first driving part comprising a first magnet and a first coil, and generating driving force in which the lens module moves in the optical axis direction; a guide portion provided between the housing and the lens module, and guiding a movement of the lens module in the optical axis direction; and a yoke configured to pull the lens module toward the housing, wherein the first coil and the yoke are disposed on different surfaces of the housing.

22 . The camera module of claim 21 , wherein the first magnet is disposed on the lens module, and
the first magnet faces the first coil in one direction and the first magnet faces the yoke in another direction different from the one direction.

23 . The camera module of claim 22 , wherein the first magnet and the first coil face each other in a first axis direction perpendicular to an optical axis direction, and
the first magnet and the yoke face each other in a second axis direction perpendicular to both the optical axis direction and the first axis.

24 . The camera module of claim 21 , wherein the camera module comprises a second driving part comprising a second magnet, a third magnet, a second coil and a third coil, and generating driving force in which the reflecting module rotates with respect to a first axis and a second axis.

25 . The camera module of claim 24 , wherein a direction in which the second magnet and the second coil oppose and a direction in which the third magnet and the third coil are perpendicular each other.

26 . The camera module of claim 21

Assignees

• Samsung Electro Mech

Inventors

• Im Ah Hyeon
• Jeong Bong Won
• Park Nam Ki
• Lee Ta Kyoung

Classifications

• H04N23/68

  for stable pick-up of the scene, e.g. compensating for camera body vibrations · CPC title

• G03B13/36

  Autofocus systems · CPC title

• G02B27/642 Primary

  Optical derotators, i.e. systems for compensating for image rotation, e.g. using rotating prisms, mirrors · CPC title

• G03B17/17

  with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera · CPC title

• G02B13/0065

  having a beam-folding prism or mirror · CPC title