HIGH APERTURE-RATIO LENS FOR NEAR-INFRA-RED REGION Russian patent published in 1997 - IPC

Abstract RU 2091833 C1

FIELD: optical instrumentation engineering. SUBSTANCE: the lens has two components (three lenses): the first component - a biconvex lens and a diverging meniscus, the second component - a converging meniscus. Definite relations are provided in the lens. EFFECT: improved design. 4 dwg, 1 tbl

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RU 2 091 833 C1

Authors

Bezdid'Ko S.N.

Grishina L.I.

Dates

1997-09-27—Published

1995-06-14—Filed