Multicolor radiation detector method and apparatus

Details Multicolor radiation detector method and apparatus Multicolor radiation detector method and apparatus

1994-03-09

1995-08-22

Allen, Stephone B.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250226, 250216, 356419, H01J 4014

Patent

active

054442362

ABSTRACT:
A two color radiation detector. A dispersive lens with a spectrally selective central obscuration focuses a first radiation band on a central location on focal plane array. The dispersive lens also focuses an annulus of out of focus radiation of a second radiation band concentric with the central location on the focal plane array. For point target detection the dispersive lens transmits plume band and guard band radiation to the staring focal plane array sensor. The staring focal plane array is located at the focal point of the plume band radiation. A spatial filter detects target signatures using information from the plume band and guard band radiation.

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