Camera actuator and a camera module including the same

Patent metadata

Field	Value
Publication number	US-11627253-B2
Application number	US-201917282259-A
Country	US
Kind code	B2
Filing date	Oct 4, 2019
Priority date	Oct 5, 2018
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

Embodiments relate to a camera actuator and a camera module including same. The camera actuator according to an embodiment comprises a lens unit, a shaper unit, a first driver coupled to the shaper unit, and a second driver arranged to correspond to the first driver. The shaper unit may include a first protruding region having a first protrusion which protrudes from a surface of a first side and a second protrusion which protrudes from another surface of the first side and is separated from the first protrusion; and a second protruding region comprising a third protrusion which protrudes from a surface of a second side and a fourth protrusion which protrudes from another surface of the second side and is separated from the third protrusion.

First claim

The invention claimed is:

1. A camera actuator, comprising:
a lens unit;
a shaper unit disposed on the lens unit, comprising a shaper body including a first side surface and a second side surface opposite from the first side surface, a first protruding region protruding from the first side surface of the shaper body, and a second protruding region protruding from the second side surface of the shaper body;
a first driving part coupled to the shaper unit;
a second driving part disposed to correspond to the first driving part,
wherein the first protruding region includes a first protrusion protruding from one portion of the first side surface and a second protrusion protruding from an other portion of the first side surface and spaced apart from the first protrusion,
wherein the second protrusion region includes a third protrusion protruding from one portion of the second side surface and a fourth protrusion protruding from an other portion of the second side surface and spaced apart from the third protrusion, and
wherein the first driving part includes first to fourth unit driving parts coupled to the first to fourth protrusions, respectively, and
wherein the second driving part includes fifth to eighth unit driving parts respectively corresponding to the first to fourth unit driving parts.

2. The camera actuator of claim 1 , wherein each of the first to fourth unit driving parts includes first to fourth magnets, and each of the fifth to eighth unit driving parts includes first to fourth coils, and the first and second unit driving parts include first and second magnet frames on which the first and second magnets are respectively disposed.

3. The camera actuator of claim 2 , wherein the first magnet frame and the second magnet frame are integrally formed.

4. The camera actuator of claim 2 , wherein the first unit driving part includes a first yoke coupled with the first protrusion, and the first magnet frame has a frame groove in which the first yoke is disposed.

5. The camera actuator of claim 1 , comprising a housing in which the second driving part is disposed,
wherein the housing includes a housing body in which the lens unit is disposed, a first housing side part disposed in a direction in which the first protruding region protrudes, and a second housing side part disposed in a direction in which the second protruding region protrudes.

6. The camera actuator of claim 1 , comprising a housing in which the second driving part is disposed,
wherein the housing includes first to fourth jig holes formed to overlap the first to fourth protrusions in a vertical direction.

7. A camera module, comprising:
a lens assembly;
an image sensor unit disposed on one side of the lens assembly; and
a camera actuator of claim 1 disposed on an other side of the lens assembly.

8. The camera actuator of claim 5 , wherein each of the first housing side part and the second housing side part includes a driving part hole in which the second driving part is disposed.

9. The camera actuator of claim 6 , wherein the housing includes an opening formed between the first to fourth jig holes.

10. A camera actuator, comprising:
a housing;
an image shaking control unit;
a shaper unit disposed on the housing and including a first driving part; and
a second driving part disposed on the housing,
wherein the shaper unit includes a shaper body, a first protrusion extending laterally from the shaper body in a first lateral direction and coupled to the first driving part, a second protrusion extending laterally from the shaper body in the first lateral direction, a third protrusion extending laterally from the shaper body in a second lateral direction opposite from the first lateral direction, and a lens unit disposed on the shaper body,
wherein the shaper body of the shaper unit includes a first side surface and a second side surface opposite from the first side surface, a first protruding region protruding from the first side surface of the shaper body, and a second protruding region protruding from the second side surface of the shaper body,
wherein the first protruding region includes the first protrusion protruding from one portion of the first side surface and the second protrusion protruding from an other portion of the first side surface and spaced apart from the first protrusion, and wherein the shaper unit comprises a fourth protrusion extending laterally from the shaper body in the second lateral direction.

11. The camera actuator of claim 10 , comprising a prism unit disposed on the image shaking control unit,
wherein the lens unit includes a variable prism or a liquid lens,
wherein the first driving part includes a magnet coupled to the first protrusion, and
wherein the second driving part includes a coil coupled to the shaper body.

12. The camera actuator of claim 11 ,
wherein a first support part, which is an end of the first protrusion, and a second support part, which is an end of the second protrusion, are spaced apart from each other.

13. The camera actuator of claim 10 , wherein the housing includes a housing body in which the lens unit is disposed, a first housing side part disposed in the first lateral direction, and a second housing side part disposed in the second lateral direction.

14. The camera actuator of claim 13 , wherein each of the first housing side part and the second housing side part includes a driving part hole in which the second driving part is disposed.

15. The camera actuator of claim 12 ,
wherein the housing includes a jig hole formed to overlap the first protrusion and the second protrusion in a vertical direction.

16. The camera actuator of claim 15 , wherein the housing includes an opening formed between the jig holes.

17. A camera module, comprising:
a lens assembly;
an image sensor unit disposed on one side of the lens assembly; and
a camera actuator of claim 10 disposed on an other side of the lens assembly.

18. A camera actuator, comprising:
a housing;
an image shaking control unit;
a shaper unit disposed on the housing and including a first driving part; and
a second driving part disposed on the housing,
wherein the shaper unit includes a shaper body, a protrusion extending laterally from the shaper body and coupled to the first driving part, and a lens unit disposed on the shaper body,
wherein the shaper body of the shaper unit includes a first side surface and a second side surface opposite from the first side surface, a first protruding region protruding from the first side surface of the shaper body, and a second protruding region protruding from the second side surface of the shaper body,
wherein the protrusion comprises a first protrusion and a second protrusion,
wherein the first protruding region includes the first protrusion protruding from one portion of the first side surface and the second protrusion protruding from an other portion of the first side surface and spaced apart from the first protrusion, and
wherein the second protrusion region includes a third protrusion protruding from one portion of the second side surface and a fourth protrusion protruding from an other portion of the second side surface and spaced apart from the third protrusion.

Assignees

• Lg Innotek Co Ltd

Inventors

• Jeong Soo Min

Classifications

• G03B3/10

  Power-operated focusing · CPC title

• G03B5/00 Primary

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

• H04N23/54

  Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils · CPC title

• G03B2205/0069

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

• G03B2205/0007

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