Camera actuator and camera device including same

Patent metadata

Field	Value
Publication number	US-2026029611-A1
Application number	US-202519341931-A
Country	US
Kind code	A1
Filing date	Sep 26, 2025
Priority date	May 11, 2020
Publication date	Jan 29, 2026
Grant date	—

Abstract

A camera actuator including a base having a first side wall and a second side wall corresponding to the first side wall, a first lens assembly and a second lens assembly disposed in the base, the second lens assembly being movable relative to the first lens assembly, a driving part configured to move the first lens assembly and the second lens assembly, and a first ball disposed on one side portion of the first lens assembly. The first lens assembly moves in an optical axis direction through the first ball. The second lens assembly is configured to be movable in the optical axis direction with respect to the first lens assembly when movement of the first lens assembly in the optical axis direction is stopped and the first ball is disposed between the first lens assembly and a guide part.

First claim

1 . A camera actuator comprising:
a base including a first side wall and a second side wall corresponding to the first side wall; a first lens assembly and a second lens assembly disposed in the base, the second lens assembly being movable relative to the first lens assembly, a driving part configured to move the first lens assembly and the second lens assembly; and a first ball disposed on one side portion of the first lens assembly, wherein the first lens assembly moves in an optical axis direction through the first ball, wherein the second lens assembly is configured to be movable in the optical axis direction with respect to the first lens assembly when movement of the first lens assembly in the optical axis direction is stopped, wherein the first ball is disposed between the first lens assembly and a guide part.

2 . The camera actuator of claim 1 , wherein the second lens assembly is configured to independently move in the optical axis direction with respect to the first lens assembly within the base.

3 . The camera actuator of claim 2 , wherein a movable distance of the first lens assembly is greater than a movable distance of the second lens assembly.

4 . The camera actuator of claim 3 , wherein a magnet for driving the first lens assembly is disposed to overlap an entire lens barrel of the second lens assembly in a direction perpendicular to the optical axis direction.

5 . The camera actuator of claim 3 , wherein a first lens hole of the first lens assembly at least partially overlaps with a second lens hole of the second lens assembly in the optical axis direction.

6 . The camera actuator of claim 4 , further comprising a third lens assembly located at a front end of the base.

7 . The camera actuator of claim 6 , wherein the third lens assembly includes a third lens hole located therein.

8 . The camera actuator of claim 7 , wherein the third lens hole at least partially overlaps with a first lens hole of the first lens assembly and a second lens hole of the second lens assembly in the optical axis direction.

9 . The camera actuator of claim 6 , wherein the third lens assembly engages with a base protrusion of the base.

10 . The camera actuator of claim 9 , further comprising a bonding member disposed on an upper surface of the third lens assembly.

11 . The camera actuator of claim 6 , wherein the third lens assembly is fixed to the base.

12 . The camera actuator of claim 1 , wherein the first lens assembly includes a first recess in which the first ball is seated.

13 . The camera actuator of claim 1 , wherein the driving part includes a first magnet and a first coil facing each other.

14 . The camera actuator of claim 13 , wherein the first lens assembly is moved by electromagnetic interaction of the first magnet and the first coil.

15 . The camera actuator of claim 13 , wherein the first magnet is disposed at a side portion of the first lens assembly.

Assignees

• Lg Innotek Co Ltd

Inventors

• Lee Seong Min

Classifications

• G03B17/17

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

• G02B7/021

  for more than one lens · CPC title

• G03B13/36

  Autofocus systems · CPC title

• G02B27/646

  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) · CPC title

• G02B7/102 Primary

  controlled by a microcomputer (cameras with interchangeable lenses G03B17/14) · CPC title