LENS OBJECTIVE Russian patent published in 2004 - IPC

Abstract RU 2239855 C2

FIELD: optics.

SUBSTANCE: device has three components. First component consists of two lenses - biconvex and flat-concave lens, directed by concave portion to objects plane, with small air space between them, and second component has shape of positive meniscus directed by concave portion to image plane and is a gluing together of biconvex and biconcave lenses. Third component also has shape of positive meniscus directed by concave portion to image plane.

EFFECT: higher resolution and better image quality.

5 dwg

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RU 2 239 855 C2

Authors

Khatsevich T.N.

Olejnik S.V.

Dates

2004-11-10—Published

2002-12-26—Filed