LENS BARREL ARRAY AND LENS ARRAY AND THE METHOD OF MAKING THE SAME

• US 20080158698A1
• Filed: 06/28/2007
• Published: 07/03/2008
• Est. Priority Date: 12/29/2006
• Status: Abandoned Application

• Current Assignee: Ether Precision, Inc.
• Original Assignee: Ether Precision, Inc.
• Inventors: CHANG, Chao-Chi, Hsiao, Raymond Chin-Chung, Chen, Yung-I
• Application Number:
  US11/769,805
• Publication Number:
  US 20080158698A1
• Time in Patent Office: Days
• US Class Current: 359/819
• CPC Class Codes: B29D 11/00009 Production of simple or compound lenses
• CPC Class Codes: G02B 3/0006 Arrays G02B3/02, G02B5/188 take precedence
• CPC Class Codes: G02B 3/0012 characterised by the manufacturing method
• CPC Class Codes: G02B 3/0056 arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses G02B3/0043 takes precedence; miniaturised objectives for electronic devices employing wafer level optics G02B13/0085
• CPC Class Codes: G02B 7/02 for lenses supports for magnifying lenses G02B25/002

Abstract

The present invention provides a lens barrel array, a lens array and a method of making the same. The lens barrel array is realized all together in collective operation, and intended to be separated later on to be used as lens barrels of individual module. The lens array including plates, each of which has a hollow portion, attached together and lenses mounted in the hollow portions respectively. The lens array is intended to be separated later on to be used as lens barrels of individual module. The method includes the steps of providing a plurality of plates with hollow portions thereon, installing lenses into the hollow portions respectively, and attaching the plates together to form lens barrel array with a plurality of lens, each of which includes the hollow portion and the lenses, intended to be separated later on to be used as lens barrels of individual module.

Claims

1. An array of lens barrels, comprising a plurality of lens barrels tiled together.

2. The lens barrel array as defined in claim 1, wherein the lens barrels intended to be separated later on to be used as individual module.

3. The lens barrel array as defined in claim 1, wherein each of the lens barrels includes plates connected to each other, and each of the plates has hollow portions to form a chamber in the lens barrel.

4. The lens barrel array as defined in claim 1, further covered by a substrate, intended to give a protection against contamination and or against infrared radiation.

5. A combination of two or more lens array as defined in claim 1, with the means to mechanically align these arrays in order to precisely define the optical axis of the optical stack formed by the superposition of the lens barrel arrays.

6. A lens barrel array as defined in claim 5, wherein the mechanical alignment is defined by protrusions or slots in the array.

7. The lens barrel array as defined in claim 5, wherein each of the plates is made of silicon.

8. The lens barrel array as defined in claim 5, wherein each of the plates is made of a heat-resisting material.

9. The lens barrel array as defined in claim 8, wherein the heat-resisting material is selected from the group consisting of metal, glass, ceramics, and heat-resisting plastic.

10. A method of making the lens array as defined in claim 5, comprising the steps of:

providing a plurality of plates and providing hollow portions on each of the plates;

providing lenses in the hollow portions of the plates; and

attaching the plates together to have the hollow portions and the lenses forming a plurality of lens modules for division.

11. The method as defined in claim 10, wherein the hollow portions of the plates are made by dry etching or wet etching.

12. The method as defined in claim 10, wherein the hollow portions of the plates are made by lithography electroforming micro molding (LIGA).

13. The method as defined in claim 10, wherein the hollow portions of the plates are made by sol-gel process or sintering process.

14. The method as defined in claim 10, wherein the hollow portions of the plates are formed by laser.