Light sensor protection and method for protecting a light...

Radiant energy – Photocells; circuits and apparatus – Housings

Reexamination Certificate

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C250S351000, C359S227000

Reexamination Certificate

active

07485849

ABSTRACT:
A light sensor protection system and method protects a light sensor system from a laser threat. The light sensor system has a sensor housing which contains optical elements disposed within the sensor housing and at a first end of the housing to converge light rays entering the housing at a focal plane. A focal plane array is disposed within the sensor housing substantially coincident with the focal plane. A means for protecting the light sensor system from a laser threat is disposed within the housing remote from the optical elements, the light rays, and the focal plane array. The method includes the steps of (a) providing a light sensor system as described above; and (b) protecting the light sensor system from a laser threat in the presence of a laser threat or upon a warning thereof with the means for protecting the light sensor system from a laser threat.

REFERENCES:
patent: 4063096 (1977-12-01), Roberts
patent: 5080865 (1992-01-01), Leiner et al.
patent: 6785032 (2004-08-01), Le Mere
patent: 2002/0162963 (2002-11-01), Lannestedt et al.
patent: 2006/0150721 (2006-07-01), Kley

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