Camera module with foreign objects inhibiting structure

Patent metadata

Field	Value
Publication number	US-9829672-B2
Application number	US-201514755968-A
Country	US
Kind code	B2
Filing date	Jun 30, 2015
Priority date	Nov 15, 2011
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

A camera module is disclosed, the camera module including a lens barrel including more than one sheet of lens receiving an optical image of an object, an actuator moving the lens barrel, a PCB (Printed Circuit Board) formed with an image sensor at a bottom surface of the lens barrel for converting the optical image to an electrical signal, and a holder for supporting the lens barrel and the actuator and formed with a terminal electrically connected to the actuator, wherein an electrical contact point between the actuator and the terminal is formed with two or more tiers of coated layers.

First claim

What is claimed is:

1. A camera module, the camera module comprising:
a lens barrel;
an actuator moving the lens barrel;
a holder disposed under the actuator; and
a case attached by the holder using an adhesive,
wherein at least two or more lugs are formed at a case contact surface attached by the holder, and
wherein a void space is formed between the holder and the case where the at least two or more lugs are not formed, such that the adhesive is filled in the void space and prevented from flowing out to a surface between the case and the holder.

2. The camera module of claim 1 , wherein the at least two or more lugs each have a slant surface at two lateral sides, and
wherein the void space is formed between the at least two or more lugs.

3. The camera module of claim 1 , wherein no adhesive is interposed between the at least two or more lugs and the holder.

4. The camera module of claim 1 , wherein an adhesive is interposed between the at least two or more lugs and the holder.

5. The camera module of claim 1 , wherein the case is fastened to a first staircase sill of the holder, and
wherein the first staircase sill includes a staircase floor surface and a staircase lateral wall.

6. The camera module of claim 5 , wherein the staircase floor surface of the first staircase sill is formed by any one of a sloped surface and a first staircase surface.

7. The camera module of claim 5 , wherein a gap between the holder and the case to the staircase lateral wall of the holder is greater than a gap between the holder and the case to a peripheral direction of the holder and the case.

8. The camera module of claim 6 , wherein the staircase floor surface of the first staircase sill is formed with the first staircase surface, and
wherein the first staircase surface is formed by making an area of the staircase floor surface of the first staircase sill to a direction of the staircase lateral wall of the holder lower than an area of the staircase floor surface of the first staircase sill to the peripheral direction of the holder and the case.

9. The camera module of claim 6 , wherein a second staircase sill is formed at the case with a second staircase surface, the second staircase surface having a corresponding shape formed at a position meshed with the first staircase floor surface of the first staircase sill of the holder.

10. The camera module of claim 9 , wherein the width of an area of the staircase floor surface of the first staircase sill to the direction of the lateral wall of the first staircase sill of the holder is greater than the width of the staircase floor surface of the first staircase sill to the peripheral direction of a holder and the case.

11. The camera module of claim 1 , wherein the actuator is any one of a VCM actuator, an actuator driven by a piezoelectric force, and a MEMS actuator driven by an electrostatic capacity method.

12. The camera module of claim 1 , wherein the actuator includes a bobbin, a coil and a magnet.

13. The camera module of claim 1 , wherein the case is a yoke unit of the actuator, and
wherein a lug unit is formed on the yoke unit between the lug unit to form an empty space to be filled with an epoxy.

14. The camera module of claim 12 , wherein the actuator further includes a spring supporting the bobbin, and the coil and the spring are electrically connected to each other.

15. The camera module of claim 14 , wherein a terminal electrically connected to the spring is formed at the holder.

16. The camera module of claim 15 , wherein the spring and the terminal are electrically connected with a solder.

17. The camera module of claim 14 , wherein the coil and the spring are electrically connected with a solder.

18. The camera module of claim 16 , wherein an epoxy is coated on a contact point in which the spring and the terminal are electrically connected.

19. The camera module of claim 17 , wherein an epoxy is coated on a contact point in which the coil and the spring are electrically connected.

20. A mobile phone comprising the camera module of claim 1 .

Assignees

• Lg Innotek Co Ltd

Inventors

• Oh Young Taek

Classifications

• G02B7/04 Primary

  with mechanism for focusing or varying magnification · CPC title

• H04N23/51

  Housings · CPC title

• H04N23/57 Primary

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

• H04N5/2252

  Electricity · mapped topic

• H04N5/2257

  Electricity · mapped topic