Absorptive clad fiber optic faceplate tube

Details Absorptive clad fiber optic faceplate tube Absorptive clad fiber optic faceplate tube

2007-07-31

2007-07-31

Font, Frank G. (Department: 2883)

Optical waveguides

Optical fiber bundle

Fiber bundle plate

C385S115000, C313S1030CM, C313S1030CM, C313S523000, C313S524000, C313S525000, C313S527000, C313S528000, C313S530000

Reexamination Certificate

active

11151498

ABSTRACT:
A limiter device is used as a fiber optic faceplate (FOFP) night vision goggle for limiting light or laser induced damage on a vacuum side of the FOFP. The limiter device includes a plurality of longitudinally extending optical fibers, each bundled to each other to form a light input surface on an external side of the FOFP and a light output surface on the vacuum side of the FOFP. The optical fibers include fiber optic cores and a glass cladding surrounding each of the cores. A portion of the glass cladding is replaced by an optical absorber material extending longitudinally away from the light input surface. The optical absorber material may extend longitudinally about1-20microns away from the light input surface.

REFERENCES:
patent: 4093562 (1978-06-01), Kishimoto
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patent: 4912314 (1990-03-01), Sink
patent: 5268612 (1993-12-01), Aebi et al.
patent: 6005239 (1999-12-01), Suzuki et al.
patent: 6396049 (2002-05-01), Estrera et al.
patent: 0 896 231 (1999-02-01), None
Search Report of French Application No. 06 52512 dated Mar. 16, 2007.

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