Actuator device

Patent metadata

Field	Value
Publication number	US-2026029639-A1
Application number	US-202519347884-A
Country	US
Kind code	A1
Filing date	Oct 2, 2025
Priority date	Jan 29, 2021
Publication date	Jan 29, 2026
Grant date	—

Abstract

A first embodiment of the present invention relates to an actuator device comprising: a housing; a holder disposed inside the housing; a reflective member disposed on the holder; a moving plate disposed between the housing and the holder; a rigid mover coupled to the holder; and a damper coupled to the rigid mover, wherein the rigid mover comprises a protruding portion coupled to the housing by the damper.

First claim

1 . A camera device comprising:
a housing; a second lens barrel disposed in the housing; a second lens coupled with the second lens barrel; and first and second driving units configured to move the second lens barrel with respect to the housing, wherein the second lens barrel comprises a groove formed on a lateral surface of the second lens barrel, and wherein the groove of the second lens barrel comprises a plurality of grooves disposed to be spaced apart from each other in an optical axis direction of the second lens.

2 . The camera device of claim 1 , wherein the groove comprises an inclined surface forming an obtuse angle with the lateral surface of the second lens barrel.

3 . The camera device of claim 1 , wherein the plurality of grooves are overlapped with each other in the optical axis direction.

4 . The camera device of claim 1 , comprising:
a third lens barrel disposed in the housing; a third lens coupled with the third lens barrel; and third and fourth driving units configured to move the third lens barrel with respect to the housing.

5 . The camera device of claim 4 , wherein the third lens barrel comprises a groove formed on a lateral surface of the third lens barrel.

6 . The camera device of claim 5 , wherein the groove of the second lens barrel is overlapped with the groove of the third lens barrel in the optical axis direction.

7 . The camera device of claim 4 , wherein the groove of the third lens barrel comprises a plurality of grooves disposed to be spaced apart from each other in the optical axis direction.

8 . The camera device of claim 6 , wherein the groove of the second lens barrel and the groove of the third lens barrel face the same direction.

9 . The camera device of claim 6 , wherein the groove of the second lens barrel and the groove of the third lens barrel have the same shape.

10 . The camera device of claim 4 , wherein a shape of the groove of the second lens barrel is different from a shape of the groove of the third lens barrel.

11 . The camera device of claim 4 , wherein an angle of an inclined surface of the groove of the second lens barrel is different from an angle of an inclined surface of the groove of the third lens barrel.

12 . The camera device of claim 2 , wherein the groove comprises a flat surface parallel with the lateral surface of the second lens barrel, and
wherein the flat surface and the inclined surface forms an obtuse angle.

13 . The camera device of claim 6 , wherein the first driving unit comprises a first driving magnet,
wherein the second driving unit comprises a first coil facing the first driving magnet, and wherein the first coil is overlapped with each of the second lens barrel and the third lens barrel in a direction perpendicular to the optical axis direction.

14 . The camera device of claim 6 , wherein the first driving unit comprises a first driving magnet,
wherein the second driving unit comprises a first coil facing the first driving magnet, and wherein the first driving magnet is overlapped with each of the second lens and the third lens in a direction perpendicular to the optical axis direction.

15 . An optical device comprising:
a main body; the camera device of claim 1 disposed on the body; and a display disposed on the main body and configured to output an image photographed by the camera device.

16 . A camera device comprising:
a housing; a first lens fixed to the housing; a second lens barrel disposed in the housing; a second lens coupled with the second lens barrel; first and second driving units configured to move the second lens barrel with respect to the housing; a third lens barrel disposed in the housing; a third lens coupled with the third lens barrel; and third and fourth driving units configured to move the third lens barrel with respect to the housing, wherein the second lens is disposed between the first lens and the third lens, and wherein the third lens barrel comprises a groove formed on a lateral surface of the third lens barrel.

17 . The camera device of claim 16 , wherein the second lens barrel comprises a groove formed on a lateral surface of the second lens barrel,
wherein the groove of the second lens barrel comprises a plurality of grooves disposed to be spaced apart from each other in an optical axis direction of the second lens, and wherein the groove of the second lens barrel is overlapped with the groove of the third lens barrel in an optical axis direction of the second lens.

18 . The camera device of claim 16 , wherein the first driving unit comprises a first driving magnet,
wherein the second driving unit comprises a first coil facing the first driving magnet, and wherein the first coil is overlapped with each of the second lens barrel and the third lens barrel in a direction perpendicular to the optical axis direction.

19 . The camera device of claim 16 , wherein the first driving unit comprises a first driving magnet,
wherein the second driving unit comprises a first coil facing the first driving magnet, and wherein the first driving magnet is overlapped with each of the second lens and the third lens in a direction perpendicular to the optical axis direction.

20 . A camera device comprising:
a housing; a first lens fixed to the housing; a second lens barrel disposed in the housing; a second lens coupled with the second lens barrel; a third lens barrel disposed in the housing; and a third lens coupled with the third lens barrel, wherein the second lens is disposed between the first lens and the third lens.

Assignees

• Lg Innotek Co Ltd

Inventors

• Lee Sung Guk
• Lee Seong Min

Classifications

• G03B2205/0069

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

• G03B3/10

  Power-operated focusing · 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

• G02B7/09

  adapted for automatic focusing or varying magnification · CPC title

• G02B26/085 Primary

  the reflecting means being moved or deformed by electromagnetic means · CPC title