Camera module with double barrels

• US 20100103540A1
• Filed: 02/10/2009
• Published: 04/29/2010
• Est. Priority Date: 10/28/2008
• Status: Active Grant

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: An, Bok Sun, Konevsky, Oleg, Yi, Moon Do
• Granted Patent: US 8,208,210 B2
• Time in Patent Office: Days
• US Class Current: 359/819
• CPC Class Codes: G02B 7/021 for more than one lens
• CPC Class Codes: G02B 7/022 lens and mount having complementary engagement means, e.g. screw/thread
• CPC Class Codes: G02B 7/023 permitting adjustment
• CPC Class Codes: G02B 7/04 with mechanism for focusing or varying magnification

Abstract

Disclosed is a camera module with an oval asymmetric lens and double barrels, including a first lens barrel containing a plurality of lenses and at least one asymmetric lens for focusing an image of an object at a position inside the camera module, a second lens barrel surrounding a portion of the first lens barrel and separately rotating from the first lens barrel, a housing coupled to the second lens barrel in a screwed manner for focusing of the first lens barrel, and a circuit board on which an image sensor for converting the image received by the first lens barrel to an electrical signal is provided and which is electrically connected to the camera module, and which is connected to a control portion of the camera module, in which the first lens barrel separately rotates from the second lens barrel for horizontal adjustment of the asymmetric lens and the second lens barrel moves in an optical axis direction of the lens for focusing the first lens barrel.

Claims

1. A camera module with double barrels, which has an asymmetric lens structure, comprising:

a first lens barrel containing a plurality of lenses and at least one asymmetric lens for focusing an image of an object at a position inside the camera module;

a second lens barrel surrounding a portion of the first lens barrel and separately rotating from the first lens barrel;

a housing coupled in a screwed manner to the second lens barrel for focusing of the first lens barrel; and

a circuit board on which an image sensor for converting the image received by the first lens barrel to an electrical signal is provided and which is electrically connected to the camera module, and which is connected to a control portion of the camera module,

wherein for horizontal adjustment of the asymmetric lens, the first lens barrel separately rotates from the second lens barrel, and for focusing the first lens barrel, the second lens barrel moves in an optical axis direction of the lens.

2. The camera module with double barrels according to claim 1, wherein the first lens barrel is provided with a fin which transfers to the second lens barrel force generated when the first lens barrel is rotated.

3. The camera module with double barrels according to claim 2, wherein the second lens barrel is provided with an adjustment groove into which the pin of the first lens barrel is inserted.

4. The camera module with double barrels according to claim 3, wherein the adjustment groove has a semicircular shape.

5. The camera module with double barrels according to claim 1, wherein the second lens barrel is provided with screw threads for performing focusing.

6. The camera module with double barrels according to claim 1, wherein the first lens barrel, the second lens barrel, and the housing are bonded to one another after focusing of the lenses of the camera module is finished, so that the entire body of the camera module is unseparable and becomes waterproof.

7. The camera module with double barrels according to claim 1, wherein the first lens barrel is provided with a protrusion at an end portion thereof to prevent the first lens barrel from separating from the second lens barrel.

8. The camera module with double barrels according to claim 1, wherein the second lens barrel is provided with an elastic piece and notches at an end portion thereof so that the first lens barrel is easily inserted into the second lens barrel.