Infrared-transparent window structure

Optical: systems and elements – Having significant infrared or ultraviolet property – Multilayer filter or multilayer reflector

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Details

359350, G02B 111, G02B 100, G02B 2700

Patent

active

060380659

ABSTRACT:
A window structure includes a first window layer having a zinc sulfide substrate coated on each side with an antireflective coating, and a second window layer having a bulk silicon substrate coated on each side with an antireflective coating. The two window layers are bonded together in a facing-but-spaced-apart relation by an infrared-transparent adhesive layer, preferably a silicone rubber. A targeting/sensor system using the window structure includes a targeting laser and a sensor within a housing having the window structure in its wall.

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patent: 5194985 (1993-03-01), Hilton, Sr.
patent: 5242709 (1993-09-01), Chaffin, III
patent: 5425983 (1995-06-01), Propst et al.

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