Camera module including multi-lens and electronic device having the same

Patent metadata

Field	Value
Publication number	US-10078196-B2
Application number	US-201615262630-A
Country	US
Kind code	B2
Filing date	Sep 12, 2016
Priority date	Sep 17, 2015
Publication date	Sep 18, 2018
Grant date	Sep 18, 2018

Abstract

A camera and an electronic device are provided. The camera or the electronic device generally includes a plurality of lens barrels configured to include a plurality of lenses, and a moving frame. The moving frame is configured to launch the plurality of lens barrels, move the plurality of lens barrels in an optical axis direction, and move the plurality of lens barrels in a direction at least one of a first direction and a second direction perpendicular to the optical axis. The camera or the electronic device may further include a fixed frame configured to movably support the moving frame, and a base. The base is configured to fix the fixed frame and includes a plurality of image sensors displaced from the plurality of lenses in the optical axis direction.

First claim

What is claimed is:

1. A camera comprising:
a plurality of lenses;
a plurality of lens barrels including the plurality of lenses;
a moving frame for:
launching the plurality of lens barrels,
moving the plurality of lens barrels individually in an optical axis direction to provide an auto focus (AF) function, and
moving the plurality of lens barrels simultaneously in a direction of at least one of a first direction or a second direction perpendicular to the optical axis direction to provide an optical image stabilizer ( 01 S) function;

a fixed frame for movably supporting the moving frame;
a base for fixing the fixed frame; and
a plurality of image sensors displaced from the plurality of lenses in the optical axis direction,
wherein the plurality of lens barrels comprises a first lens barrel and a second lens barrel,
wherein the moving frame comprises:
a first moving frame for moving the first lens barrel in the optical axis direction and comprising a first magnet, and
a second moving frame for moving the second lens barrel in the optical axis direction and comprising a second magnet, and

wherein the fixed frame comprises:
a first drive coil located corresponding to the first magnet and configured to provide a driving power for moving the first moving frame in the optical axis direction, and
a second drive coil located corresponding to the second magnet and configured to provide a driving power for moving the second moving frame in the optical axis direction.

2. The camera of claim 1 , wherein the moving frame further comprises:
a third moving frame for moving the first lens barrel and the second lens barrel in a direction of at least one of the first direction or the second direction.

3. The camera of claim 2 ,
wherein the fixed frame further comprises:
a third drive coil configured to provide a driving power for moving the third moving frame in the first direction; and
a fourth drive coil configured to provide a driving power for moving the third moving frame in the second direction, and

wherein the third moving frame comprises a third magnet and a fourth magnet corresponding respectively to the third drive coil and the fourth drive coil.

4. The camera of claim 3 ,
wherein the third moving frame comprises a fifth magnet,
wherein the first moving frame is located corresponding to the fifth magnet and further comprises a first yoke formed with a conductive material,
wherein the second moving frame is located corresponding to the fifth magnet and further comprises a second yoke formed with a conductive material, and
wherein the fixed frame is located corresponding to the third magnet and the fourth magnet and further comprises a third yoke formed with a conductive material.

5. The camera of claim 3 , further comprising:
a first sensor located on the fixed frame corresponding to the first magnet and configured to detect a movement and a location of the first moving frame in the optical axis direction;
a second sensor located on the fixed frame corresponding to the second magnet and configured to detect a movement and a location of the second moving frame in the optical axis direction;
a third sensor located on the fixed frame corresponding to the third magnet and configured to detect a movement and a location of the third moving frame in the first direction; and
a fourth sensor located on the fixed frame corresponding to the fourth magnet and configured to detect a movement and a location of the third moving frame in the second direction.

6. The camera of claim 5 , wherein the first, second, third, and fourth sensors are magnetic sensors.

7. The camera of claim 5 , wherein the first sensor and the second sensor are formed in a pair.

8. The camera of claim 5 ,
wherein the third sensor and the fourth sensor are configured with a plurality of sensors,
wherein, when the third moving frame moves in the first direction, the camera detects and compensates a location deviation generated by rotation in the second direction with the plurality of third sensors, and
wherein, when the third moving frame moves in the second direction, the camera detects and compensates a location deviation generated by rotation in the first direction with the plurality of fourth sensors.

9. The camera of claim 3 , wherein the fixed frame further comprises a printed circuit board configured to supply an electric power to the first drive coil, the second drive coil, the third drive coil, and the fourth drive coil in order to move the first moving frame, the second moving frame, and the third moving frame.

10. The camera of claim 2 , wherein the fixed frame further comprises a separation protector for protecting the third moving frame from being separated in the optical axis direction.

11. The camera of claim 2 , further comprising:
a rotation protector located between the third moving frame and the fixed frame,
wherein the rotation protector protects the third moving frame from rotating in the second direction when the third moving frame moves in the first direction and protects the third moving frame from rotating in the first direction when the third moving frame moves in the second direction.

12. The camera of claim 11 , wherein the rotation protector further comprises:
a first projection configured to extend in the optical axis direction so that the third moving frame does not rotate in the second direction but rotates in the first direction; and
a guide hole formed in a long ellipse in the second direction so that the third moving frame does not rotate in the second direction but rotates in the first direction.

13. The camera of claim 12 ,
wherein the third moving frame comprises a guide groove formed in a long ellipse in the first direction, and
wherein the first projection is formed as a cylinder having a diameter similar to a width of the guide groove and moves in the first direction by insertion into the guide groove.

14. The camera of claim 12 ,
wherein the fixed frame comprises a second projection formed as a cylinder having a diameter similar to a width of the guide hole, and
wherein the fixed frame is configured to move in the second direction by insertion into the guide hole.

15. The camera of claim 1 , wherein the moving frame further comprises a cover for protecting a separation of the first moving frame and the second moving frame.

16. A camera comprising:
a plurality of lenses;
a plurality of lens barrels including the plurality of lenses;
a moving frame for:
launching the plurality of lens barrels,
moving the plurality of lens barrels individually in an optical axis direction to provide an auto focus (AF) function, and
moving the plurality of lens barrels simultaneously in a direction of at least one of a first direction or a second direction perpendicular to the optical axis direction to provide an optical image stabilizer ( 01 S) function;

a fixed frame for movably supporting the moving frame;
a base for fixing the fixed frame;
a plurality of image sensors displaced from the plurality of lenses in the optical axis direction; and
a rotation protector located between the moving frame and the fixed frame, wherein the rotation protector is for:
protecting the moving frame from rotating in the second direction when the moving frame moves in the first direction, and
protecting the moving frame from rotating in the first direction when the moving frame moves in the second direction,

wherein the rotation protector extends in the optical axis direction, and
wherein the rotation protector further comprises:
a first projection co

Assignees

• Samsung Electronics Co Ltd

Inventors

• Hwang Youngjae
• BYON Kwangseok
• Kim Jungsoo

Classifications

• H04N23/68

  for stable pick-up of the scene, e.g. compensating for camera body vibrations · CPC title

• H04N23/45

  for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images · CPC title

• H04N23/57

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• H04N23/685

  performed by mechanical compensation · CPC title

• H04N23/75

  by influencing optical camera components · CPC title