SINGLE-LENS EYE-PIECE Russian patent published in 1998 - IPC

Abstract RU 2105336 C1

FIELD: night telescopes. SUBSTANCE: eye-piece is made as a biconvex lens, whose second surface is an aspherical one. Relations given in the claim are observed. EFFECT: enhanced efficiency. 2 dwg

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RU 2 105 336 C1

Authors

Bezdid'Ko S.N.

Grishina L.I.

Dates

1998-02-20—Published

1996-02-29—Filed