Environmentally resistant, infrared-transparent window structure

Details Environmentally resistant, infrared-transparent window structure Environmentally resistant, infrared-transparent window structure

1997-06-06

1999-08-10

Speer, Timothy M.

Stock material or miscellaneous articles

Composite

Of inorganic material

428699, 428701, 428702, 428 68, 428 76, 359350, 359359, 359360, B32B 1700

Patent

active

059357231

ABSTRACT:
A window structure includes a first window layer including a zinc sulfide substrate coated on each side with an antireflective coating, and a second window layer including a sapphire 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. The window is placed into the wall of a sensor housing that contains an infrared sensor.

REFERENCES:
patent: 4778731 (1988-10-01), Kraatz et al.
patent: 4809293 (1989-02-01), DeBell et al.
patent: 4907846 (1990-03-01), Tustison
patent: 5067781 (1991-11-01), Montanari
patent: 5194985 (1993-03-01), Hilton, Sr.
patent: 5242709 (1993-09-01), Chaffin, III

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