AFOCAL ATTACHMENT Russian patent published in 1996 - IPC

Abstract RU 2067309 C1

FIELD: TV and cine optics. SUBSTANCE: afocal attachment is composed of two components. First component is made in the form of bioconvex lens, second component incorporates positive meniscus object with concavity and bioconcave lens. EFFECT: improved optical characteristics. 4 dwg

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RU 2 067 309 C1

Authors

Savoskin Vladimir Il'Ich

Berezentseva Galina Grigor'Evna

Dates

1996-09-27—Published

1993-07-30—Filed