Camera module

Patent metadata

Field	Value
Publication number	US-10334146-B2
Application number	US-201715835658-A
Country	US
Kind code	B2
Filing date	Dec 8, 2017
Priority date	Jun 16, 2017
Publication date	Jun 25, 2019
Grant date	Jun 25, 2019

Abstract

A camera module includes: a housing; a reflecting module; and a lens module disposed behind the reflecting module, wherein the moving holder is disposed to be movable in one axial direction, approximately perpendicular to the optical axial direction and the one axial direction with respect to the housing, the lens module includes a carrier supported by the housing to be linearly movable in approximately the optical axial direction, the lens module includes two or more lens barrels of which some are fixed, and the others are supported by the housing to be linearly movable in approximately the optical axial direction, and lenses are distributed and provided into the at least two lens barrels.

First claim

What is claimed is:

1. A camera module comprising:
a housing having an internal space;
a reflecting module disposed in the internal space and comprising a reflecting member and a moving holder movably supported by an inner wall of the housing; and
a lens module disposed behind the reflecting module in the internal space, and comprising lenses aligned in an optical axial direction and configured such that light reflected from the reflecting member is incident to the lenses,
wherein the moving holder is configured to be movable, with respect to the housing, in a first axial direction perpendicular to the optical axial direction and a second axial direction perpendicular to the optical axis direction and the first axial direction,
wherein the lens module comprises a carrier supported by the housing and configured to be linearly movable in the optical axial direction,
wherein the lens module comprises two or more lens barrels, at least one first lens barrel among the two or more lens barrels being fixed to the carrier and configured to be immovable with respect to the carrier in the optical axis direction, and at least one second lens barrel among the two or more lens barrels being disposed in the carrier and configured to be linearly movable with respect to the carrier in the optical axial direction, and
wherein the lenses are distributed and disposed in the two or more lens barrels.

2. The camera module of claim 1 , wherein one or more first lenses disposed in the at least one first lens barrel and one or more second lenses disposed in the at least one second lens barrel are aligned parallel to each other in the optical axial direction.

3. The camera module of claim 1 , further comprising ball bearings disposed between the housing and a bottom plate of the carrier.

4. The camera module of claim 3 , wherein the carrier comprises a magnet configured to generate driving force in the optical axial direction in response to a coil disposed in the housing.

5. The camera module of claim 4 , wherein the housing comprises a pulling yoke disposed on a bottom surface of the housing, and the pulling yoke is configured to allow the carrier to be supported by the bottom surface of the housing by attractive force between the pulling yoke and the magnet.

6. The camera module of claim 3 , wherein seating grooves in which the ball bearings are seated are disposed in a bottom surface of the housing and the bottom plate of the carrier facing each other.

7. The camera module of claim 6 , wherein seating grooves disposed in the housing or the carrier, among the seating grooves, are elongate in the optical axial direction.

8. The camera module of claim 1 , further comprising ball bearings disposed between a bottom plate of the carrier and the at least one second lens barrel.

9. The camera module of claim 8 , wherein the at least one second lens barrel comprises a magnet configured to generate driving force in the optical axial direction in response to a coil disposed in the housing.

10. The camera module of claim 9 , wherein the carrier comprises a pulling yoke disposed on a bottom surface of the carrier, and the pulling yoke is configured to allow the at least one second lens barrel to be supported by the bottom surface of the carrier by attractive force between the pulling yoke and the magnet.

11. The camera module of claim 8 , wherein seating grooves, in which the ball bearings are seated, are disposed in a bottom surface of the carrier and a bottom of the at least one second lens barrel facing each other.

12. The camera module of claim 11 , wherein seating grooves disposed in the carrier or the at least one second lens barrel, among the seating grooves, are elongate in the optical axial direction.

13. The camera module of claim 9 , wherein the magnet is configured to be exposed externally of the carrier to face the coil.

14. The camera module of claim 1 , wherein the at least one first lens barrel is configured to control an auto-focusing (AF) function, and the at least one second lens barrel is configured to control a zoom function.

15. The camera module of claim 1 , wherein the at least on first lens barrel is disposed at a rearmost portion of the camera module.

16. A portable electronic device comprising the camera module of claim 1 .

17. The portable electronic device of claim 1 , wherein the optical axial direction is perpendicular to a thickness direction of the portable electronic device.

18. A camera module, comprising:
a housing having an internal space;
a reflecting module disposed in the internal space;
a lens module disposed in the internal space, and comprising at least one lens aligned in an optical axial direction and configured such that light reflected from the reflecting module is incident to the at least one lens;
a magnet disposed on the housing or the reflecting module; and
a yoke disposed on the reflecting module or the housing, opposing the magnet,
wherein an inner wall of the housing is configured to support the reflecting module by a magnetic force between the yoke and the magnet, and
wherein the reflecting module is configured to move, with respect to the housing, in at least one axial direction perpendicular to the optical axial direction to perform an optical image stabilization (OIS) function.

19. The camera module of claim 18 , wherein:
the reflecting module comprises a moving holder and a reflecting member mounted on the moving holder,
the reflecting member is configured to reflect the light to be incident to the at least one lens,
either one of the magnet and the yoke is disposed on the moving holder,
the housing is configured to support the moving holder by the magnetic force between the yoke and the magnet, and
the moving holder is configured to move, with respect to the housing, in the at least one axial direction perpendicular to the optical axial direction to perform the OIS function.

20. The camera module of claim 18 , wherein the at least one lens is disposed in at least one lens barrel configured to perform either one or both of an auto-focusing (AF) function and a zoom function.

21. The camera module of claim 20 , wherein two or more lenses of the at least one lens are respectively disposed in two or more lens barrels among the at least one lens barrel, a first lens barrel among the two or more lens barrels is configured to implement the AF function, and a second lens barrel among the two or more lens barrels is configured to implement the zoom function.

Assignees

• Samsung Electro Mech

Inventors

• Im Ah Hyeon
• Lee Ta Kyoung
• Jeong Bong Won

Classifications

• H04N23/55 Primary

  Optical parts specially adapted for electronic image sensors; Mounting thereof · CPC title

• G02B7/102 Primary

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

• H04N23/51

  Housings · CPC title

• H04N23/687

  by shifting the lens or sensor position · CPC title

• H04N23/69

  Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming · CPC title