MULTILAYER INTERFERENCE SYSTEM FOR FAR IR-SPECTRUM Russian patent published in 1994 - IPC

Abstract SU 1626916 A1

FIELD: optical instrument engineering. SUBSTANCE: multilayer system has alternating layers with low and high refractivities n_в1 and n_в1. Layer which has low refractivity is made of polymeric material. One layer which has high refractivity is made in form of a system of layers 3 with high and low refractivities. Refractivity n_в1 in spectral range λ>λ_o is less than in range λ>λ_o/3. Optical width of periods is equal to . EFFECT: reduced short-wave background transmission in the system. 2 dwg

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SU 1 626 916 A1

Authors

Vereshchagin V.G.

Zamkovets A.D.

Ponjavina A.N.

Dates

1994-02-15—Published

1988-12-08—Filed