Reflecting module for OIS and camera module including the same

Patent metadata

Field	Value
Publication number	US-10877289-B2
Application number	US-201916535132-A
Country	US
Kind code	B2
Filing date	Aug 8, 2019
Priority date	Feb 15, 2017
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

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 including an internal space; a movable holder supported in the internal space of the housing by an elastic member; a reflecting member disposed on the movable holder; and a driving part configured to provide driving force to the movable holder so that the movable holder is moved relative to the housing, wherein the elastic member includes a fixed frame fixed to the housing, a movable frame provided in the fixed frame, and a spring connecting the fixed frame and the movable frame to each other and, the movable frame is movable in relation to two axes perpendicular to each other.

First claim

What is claimed is:

1. A reflecting module for OIS, comprising:
a housing comprising an internal space;
a gimbal disposed in the internal space;
a reflecting member disposed on the gimbal; and
a driving part configured to provide driving force to the reflecting member so that the reflecting member moves relative to the housing,
wherein the gimbal comprises a fixed frame fixed to the housing, a first movable frame disposed in the fixed frame, and a second movable frame disposed in the first movable frame,
wherein the reflecting member being fixed to the second movable frame to cover one surface of the first movable frame and one surface of the second movable frame, and the reflecting member is out of contact with the fixed frame and the first movable frame when the driving part is idle, and
wherein the driving part comprises coils disposed on the housing and magnets disposed on the gimbal, and the magnets and the coils face each other in a direction perpendicular to a reflecting surface of the reflecting member.

2. The reflecting module for OIS of claim 1 , wherein the fixed frame and the first movable frame are connected to each other by a second axis member extended in a second axial direction, and the first movable frame and the second movable frame are connected to each other by a first axis member extended in a first axial direction perpendicular to the second axial direction.

3. The reflecting module for OIS of claim 2 , wherein the first movable frame is configured to be movable in relation to the first axial direction, and the second movable frame is configured to be movable in relation to the second axial direction.

4. The reflecting module for OIS of claim 2 , wherein a protruding portion of the one surface of the second movable frame protrudes with respect to the one surface of the first movable frame, and the reflecting member is fixed to the protruding portion.

5. The reflecting module for OIS of claim 2 , wherein two or more of the magnets are disposed on the first movable frame, and two or more of the magnets are disposed on the second movable frame.

6. The reflecting module for OIS of claim 2 , wherein the driving part includes coils disposed on the housing and magnets disposed on the second movable frame.

Assignees

• Samsung Electro Mech

Inventors

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

Classifications

• G02B27/64 Primary

  Imaging systems using optical elements for stabilisation of the lateral and angular position of the image · 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

• G03B5/00 Primary

  Adjustment of optical system relative to image or object surface other than for focusing · CPC title

• G02B27/642

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

• G03B3/06 Primary

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