LENS ACTUATOR

• US 20140098434A1
• Filed: 08/28/2013
• Published: 04/10/2014
• Est. Priority Date: 10/10/2012
• Status: Active Grant

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: Heo, Hoon, Lee, Jung Seok, Park, Yong Joon, Hwang, Jung Wook, Baik, Jae Ho, Lee, Jae Hyuk
• Granted Patent: US 9,995,902 B2
• Time in Patent Office: Days
• US Class Current: 359/824
• CPC Class Codes: G02B 7/04 with mechanism for focusing or varying magnification
• CPC Class Codes: G02B 7/08 adapted to co-operate with a remote control mechanism

Abstract

There is provided a lens actuator, including: a lens barrel in which at least one lens is provided on an optical axis; a magnetic part provided on one surface of the lens barrel; and a printed circuit board in which a coil pattern part generating electromagnetic force is provided, the printed circuit board having one surface facing the magnetic part, wherein magnetic material is provided on the other surface of the printed circuit board.

Claims

1. A lens actuator, comprising:

a lens barrel in which at least one lens is provided on an optical axis;

a magnetic part provided on one surface of the lens barrel; and

a printed circuit board in which a coil pattern part generating electromagnetic force is provided, the printed circuit board having one surface facing the magnetic part,

wherein magnetic material is provided on the other surface of the printed circuit board.

2. The lens actuator of claim 1, wherein the coil pattern part is a metal layer patterned on the printed circuit board.

3. The lens actuator of claim 1, wherein the coil pattern part is a winding coil embedded in the printed circuit board.

4. The lens actuator of claim 1, wherein the printed circuit board has an integrated circuit component mounted therein.

5. The lens actuator of claim 1, wherein the printed circuit board has a position sensor mounted therein to sense the position of the lens barrel.

6. The lens actuator of claim 5, wherein the coil pattern part surrounds the position sensor.

7. The lens actuator of claim 1, wherein the magnetic material is magnetic paste.