CATADIOPTIC LENS Russian patent published in 1994 - IPC

Abstract RU 2014643 C1

FIELD: optical engineering. SUBSTANCE: catadioptic lens has afocal two-lens compensator, concave mirror and near-focal positive compensator. The first lens of afocal compensator is made in form of negative meniscus, turned with its concavity to the space of objects. The second lens of the compensator is positive. Near-focal compensator is made of negative meniscus, turned with its concavity to the space of objects, and of positive lens. EFFECT: improved reliability of operation. 2 dwg

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RU 2 014 643 C1

Authors

Demidov N.V.

Tsukanova G.I.

Dates

1994-06-15—Published

1992-06-17—Filed