Reflection reducing multilayer system on a highly refractive inf

Details Reflection reducing multilayer system on a highly refractive inf Reflection reducing multilayer system on a highly refractive inf

1976-02-17

1977-11-08

Corbin, John K.

350166, G02B 528

Patent

active

040573168

ABSTRACT:
A reflection reducing system on a highly refractive infrared transmitting substrate, comprises a germanium layer immediately adjacent the substrate, an adjoining layer of zinc selenide, and at least one layer of Al.sub.2 O.sub.3 terminating the layer system to the outside.

REFERENCES:
patent: 3020406 (1962-02-01), Whitney
patent: 3033701 (1962-05-01), Wozniak
patent: 3614188 (1971-10-01), Seeley et al.
patent: 3849738 (1974-11-01), Hakki
Feilchenfeld, "Zinc Selenide as a Highly Refractive Substance in Dielectric Refl. Layers for . . . Interference Filters", Chem. Abstracts, vol. 64, p. 4439, 1966.
Rudisill et al., "Optical Coatings for High Energy ZnSe Laser Windows", Applied Optics, vol. 13, No. 9, pp. 2075-2080, Sept. 1974.

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