CAMERA MODULE HAVING BAFFLE BETWEEN TWO GLASS SUBSTRATES

• US 20180324336A1
• Filed: 05/03/2017
• Published: 11/08/2018
• Est. Priority Date: 05/03/2017
• Status: Active Grant

• Current Assignee: Omnivision Technologies Incorporated (Will Semiconductor Co., Ltd. Shanghai)
• Original Assignee: Omnivision Technologies Incorporated (Will Semiconductor Co., Ltd. Shanghai)
• Inventors: Wan, Tsung-Wei, Chen, Wei-Ping
• Granted Patent: US 10,469,718 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 1/00096 Optical elements
• CPC Class Codes: A61B 1/00186 with imaging filters
• CPC Class Codes: A61B 1/051 Details of CCD assembly
• CPC Class Codes: G02B 13/0055 employing a special optical element
• CPC Class Codes: G02B 13/0085 employing wafer level optics
• CPC Class Codes: G02B 23/2407 Optical details
• CPC Class Codes: G02B 23/2484 Arrangements in relation to a camera or imaging device processing or control of video signals generated by an endoscope H04N23/60, H04N23/70
• CPC Class Codes: G03B 11/045 Lens hoods or shields
• CPC Class Codes: G03B 17/08 Waterproof bodies or housings
• CPC Class Codes: H04N 23/55 Optical parts specially adapted for electronic image sensors; Mounting thereof
• CPC Class Codes: H04N 23/555 for picking-up images in sites, inaccessible due to their dimensions or hazardous conditions, e.g. endoscopes or borescopes
• CPC Class Codes: H04N 23/57 Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

Abstract

A camera module comprises an image sensor and a lens module disposed on the image sensor. The lens module comprises a top glass structure at top of the lens module. The top glass structure includes a first glass substrate, a second glass substrate, and a baffle disposed immediately between the first and the second glass substrates. The top glass structure is an outermost layer of the camera module. The lens module also comprises a bottom glass substrate at bottom of the lens module. The bottom glass substrate is disposed on the image sensor.

Claims

1. A camera module comprising:

an image sensor; and

a lens module disposed on the image sensor, the lens module comprising;

a top glass structure at top of the lens module, the top glass structure including a first glass substrate, a second glass substrate, and a baffle disposed immediately between the first and the second glass substrates;

wherein the top glass structure is an outermost layer of the camera module.

2. The camera module of claim 1, the lens module further comprising:

a bottom glass substrate at bottom of the lens module, wherein the bottom glass substrate is disposed on the image sensor.

3. The camera module of claim 1, the lens module further comprising at least a lens.

4. The camera module of claim 3, wherein the lens has a flat surface and wherein the flat surface is glued to one of the first glass substrate and the second glass substrate.

5. The camera module of claim 3, wherein the lens is a wafer level lens.

6. The camera module of claim 3, wherein the lens is a casting lens.

7. The camera module of claim 3, wherein the lens is a molded lens.

8. The camera module of claim 1, the lens module further comprising an IR cut filter.

9. The camera module of claim 1, the lens module further comprising an IR pass filter.

10. The camera module of claim 1, the lens module further comprising a stop aperture disposed between two glass substrates.

11. The camera module of claim 1, the lens module further comprising a spacer.

12. The camera module of claim 1, wherein layers in the lens module are bonded using one of UV glue and thermal glue.

13. The camera module of claim 1, wherein the camera module is hermetically sealed.

14. The camera module of claim 1, wherein the camera module is water resistant.

15. The camera module of claim 1, wherein the camera module is installed in an endoscope.

16. A lens module comprising:

a top glass structure at top of the lens module, the top glass structure including a first glass substrate, a second glass substrate, and a baffle disposed immediately between the first and the second glass substrates;

a bottom glass substrate at bottom of the lens module;

at least a lens disposed between the top glass structure and the bottom glass substrate.

17. The lens module of claim 16, wherein layers in the lens module are bonded using one of UV glue and thermal glue.

18. The lens module of claim 16, wherein the lens module is hermetically sealed.

19. The lens module of claim 16, wherein the lens module is water resistant.

20. The lens module of claim 16, wherein the lens module is installed in an endoscope.