Optical: systems and elements – Having significant infrared or ultraviolet property
Patent
1991-04-25
1991-11-26
Arnold, Bruce Y.
Optical: systems and elements
Having significant infrared or ultraviolet property
427160, 427162, 427166, 4289088, 359580, 359507, G02B 110, G02B 528
Patent
active
050677810
ABSTRACT:
An optical element resistant to thermally induced damage and oxidation includes a base layer of a first material selected from the group consisting of gallium arsenide, gallium phosphide, cadmium telluride, mercury cadmium telluride, zinc sulfide and zinc selenide, and a coating layer comprised of the selected base layer material and a refractory oxide. The coating layer has a first portion having a graded composition disposed adjacent the base layer. The coating also has a second portion disposed over the first portion with said second portion being the refractory oxide.
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Gentilman Richard L.
Montanari Dennis G.
Tustison Randal W.
Arnold Bruce Y.
Maloney Denis G.
Parsons David R.
Raytheon Company
Sharkansky Richard M.
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