Moisture-protected alkali halide infrared windows

Details Moisture-protected alkali halide infrared windows Moisture-protected alkali halide infrared windows

1981-12-04

1983-09-20

Hoffman, James R.

Stock material or miscellaneous articles

Composite

Of inorganic material

350 16, 427 41, 427160, B32B 2728, B32B 2706, B05D 306, G02B 110

Patent

active

044056923

ABSTRACT:
Alkali halide crystals are passivated by a chemical surfactant and overcoated with a plasma polymerized saturated hydrocarbon film to render them suitable for use as optical elements exposed to high humidity and abrasive environmental conditions. These crystals are continuously transmissive to light in the IR.

REFERENCES:
patent: 4269896 (1981-05-01), Yamagishi
Tibbitt et al., "IR Laser Window Coating by Plasma Polymerized Hydrocarbons", Proc. Fifth Conf. on Infrared Laser Window Materials, USAF Mat. Lab. Spec. Rep., Wright Patterson AFB (1976) p. 206.

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