Camera actuator and camera module including same

Patent metadata

Field	Value
Publication number	US-12510799-B2
Application number	US-202118000775-A
Country	US
Kind code	B2
Filing date	Jun 3, 2021
Priority date	Jun 4, 2020
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

An embodiment of the present invention provides a camera actuator comprising: a housing; a first member combined with the housing; a mover including an optical member; a first magnetic body disposed in the first member; a second magnetic body disposed in the mover; and a tilting-guiding part for guiding titling of the mover, wherein the mover comprises a holder combined with the optical member and a second member combined with the holder, and the tilting-guiding part is closely adhered to the first member and the holder by repulsion between the first magnetic body and the second magnetic body.

First claim

The invention claimed is:

1 . A camera actuator comprising:
a housing; a first member coupled with the housing; a mover including an optical member; a first magnetic body disposed on the first member; a second magnetic body disposed on the mover; and a tilting guide configured to guide tilting of the mover, wherein the mover includes a holder coupled with the optical member and a second member coupled with the holder, wherein the tilting guide is in close contact with the first member and the holder by a repulsive force of the first magnetic body and the second magnetic body, wherein the first member includes a first through hole and a second through hole spaced apart from the first through hole, and wherein the second member includes a member base; a first extension located at an edge of the member base and extending toward the holder; and a second extension spaced apart from the first extension and extending toward the holder, wherein the first extension passes through the first through hole, and wherein the second extension passes through the second through hole.

2 . The camera actuator of claim 1 , wherein the first member includes:
an upper member disposed above the first through hole and the second through hole; a lower member disposed below the first through hole and the second through hole; a connecting member connecting the upper member and the lower member; a first protrusion extending toward the holder from one side of the upper member; and a second protrusion extending toward the holder from an other side of the upper member, wherein the first extension and the second extension are disposed between the upper member and the lower member.

3 . A camera actuator comprising:
a housing; a first member coupled with the housing; a mover including a holder; a first magnetic body disposed on the first member; a second magnetic body disposed on the mover; and a tilting guide part disposed between the holder and the first member, wherein the mover includes a second member coupled with the holder, wherein a portion of the first member is disposed between the second member and the holder, wherein a first surface of the first magnetic body and a second surface of the second magnetic body facing the first surface have same polarity, wherein the first member includes a first through hole and a second through hole spaced apart from the first through hole, wherein the second member includes a member base; a first extension located at an edge of the member base and extending toward the holder; and a second extension spaced apart from the first extension and extending toward the mover, wherein the first extension passes through the first through hole, and wherein the second extension passes through the second through hole.

4 . The camera actuator of claim 3 , wherein a center of the second magnetic body and a center of the second member are disposed at different positions from each other.

5 . The camera actuator of claim 4 , wherein the center of the second magnetic body is located above or below the center of the second member.

6 . The camera actuator of claim 5 , wherein an area of the second magnetic body is greater than an area of the first magnetic body.

7 . A camera actuator comprising:
a housing; a first member coupled with the housing; a first magnetic body disposed on the first member; a second magnetic body corresponding to the first magnetic body; a second member on which the second magnetic body is disposed; a holder coupled with the second member; and a tilting guide part disposed between the holder and the first member, wherein a portion of the first member is disposed between the second member and the holder, wherein the first member includes a first through hole and a second through hole spaced apart from the first through hole, wherein the second member includes a member base; a first extension located at an edge of the member base and extending toward the holder; and a second extension spaced apart from the first extension and extending toward the mover, wherein the first extension passes through the first through hole, and wherein the second extension passes through the second through hole.

8 . The camera actuator of claim 7 , wherein the first magnetic body and the second magnetic body face each other with same polarity.

Assignees

• Lg Innotek Co Ltd

Inventors

• Lee Sung Guk
• Lee Hyun Joong

Classifications

• H02K41/0354

  Lorentz force motors, e.g. voice coil motors · CPC title

• G03B2205/0069

  using electromagnetic actuators, e.g. voice coils · CPC title

• G03B2205/0046

  Movement of one or more optical elements for zooming · CPC title

• G03B2205/0007

  Movement of one or more optical elements for control of motion blur · CPC title

• G03B13/36

  Autofocus systems · CPC title