Optical converter formed from flexible strips

• US 7,292,760 B2
• Filed: 12/09/2002
• Issued: 11/06/2007
• Est. Priority Date: 12/09/2002
• Status: Expired due to Fees

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Kerr, Roger S., Kessler, David, Cok, Ronald S.
• Primary Examiner(s): PAK, SUNG H
• Application Number:
  US10/314,843
• Publication Number:
  US 20040108046A1
• Time in Patent Office: 1,793 Days
• Field of Search: 385115-121
• US Class Current: 385/120
• CPC Class Codes: G02B 6/04 formed by bundles of fibres G02B6/24 takes precedence
• CPC Class Codes: H10K 50/80 Constructional details
• CPC Class Codes: H10K 50/85 Arrangements for extracting light from the devices
• CPC Class Codes: H10K 59/18 Tiled displays
• CPC Class Codes: Y10T 156/1002 with permanent bending or reshaping or surface deformation of self sustaining lamina
• CPC Class Codes: Y10T 156/1015 Folding
• CPC Class Codes: Y10T 156/1051 by folding

Abstract

A fiber optic faceplate fabricated using a series of stacked ribbon structures. Each ribbon structure comprises optical fiber segments that run from an input edge to an output edge with fixed input and output fiber-to-fiber spacing. Input and output edge spacers may be used to provide spacing between stacked ribbon structures. Ribbon structures may be provided individually or as one or more sheets of ribbon structures.

Claims

1. A fiber optic faceplate, comprising:

a series of stacked ribbon structures, each ribbon structure comprising a single row of adjacent optical fibers, each optical fiber running from an input edge to an output edge of said ribbon structure, the length of each optical fiber thereby determining a depth dimension of said ribbon structure, each fiber having, relative to an adjacent fiber, an input spacing at said input edge and an output spacing at said output edge for directing light from an input position to an output position respectively, wherein the input spacing at the input edge is provided by a first spacer having a first constant thickness and the optical fibers are arranged at a first variable angle along the length of the first spacer and the output spacing at the output edge is provided by a second spacer having a second constant thickness different from the first constant thickness and the optical fibers are arranged at a second variable angle along the length of the second spacer.

2. A fiber optic faceplate according to claim 1, wherein each said stacked ribbon structure further having, relative to an adjacent ribbon structure, an input row-to-row spacer for setting the distance between said input edges, each said stacked ribbon structure further having, relative to an adjacent ribbon structure, an output row-to-row spacer for setting the distance between said output edges.

3. A fiber optic faceplate according to claim 2. wherein said input row-to-row spacer is plastic.

4. A fiber optic faceplate according to claim 2, wherein said input row-to-row spacer is magnetic.

5. A fiber optic faceplate according to claim 1, further comprising a filler material for securing each said optical fiber in place.

6. A fiber optic faceplate according to claim 1, wherein said optical fibers in said each ribbon structure have the same radius dimension.

7. A fiber optic faceplate according to claim 1, wherein said optical fibers in said each ribbon structure have a plurality of shapes.

8. A fiber optic faceplate according to claim 5, wherein said filler material is black.

9. A fiber optic faceplate according to claim 5, wherein said filler material comprises a reflective material.

10. A fiber optic faceplate according to claim 1, wherein said optical fibers are circular in cross-section.

11. A fiber optic faceplate according to claim 1, wherein said optical fibers are non-circular in cross-section.

12. A fiber optic faceplate according to claim 1, wherein successive stacked ribbon structures differ in said depth dimension.

13. A fiber optic faceplate according to claim 1, wherein successive stacked ribbon structures are formed with a predetermined curvature.

14. A fiber optic faceplate according to claim 1, further comprising a coating.

15. A fiber optic faceplate according to claim 1, further comprising a polarizer at said output edge.

16. An image forming device comprising:

(a) an emissive device comprising a spaced array of light-emitting components; and

(b) a fiber optic faceplate, comprising a plurality of stacked ribbon structures, each ribbon structure a single row of adjacent optical fibers, each optical fiber running from an input edge to an output edge of said ribbon structure, the length of each optical fiber thereby determining a depth dimension of said ribbon structure, each fiber having, relative to an adjacent fiber, an input spacing at said input edge and an output spacing at said output edge for directing light from an input position to an output position respectively, wherein the input spacing at the input edge is provided by a first spacer having a first constant thickness and the optical fibers are arranged at a first variable angle along the length of the first spacer and the output spacing at the output edge is provided by a second spacer having a second constant thickness different from the first constant thickness and the optical fibers are arranged at a second variable angle along the length of the second spacer.

17. An image forming device according to claim 16, wherein said emissive device is taken from the group consisting of OLED, PLED, LED.

18. An image forming device according to claim 16, wherein said emissive device is fabricated against said fiber optic faceplate.