BROAD-ANGLE MIRROR-LENS OBJECTIVE OF TELESCOPE Russian patent published in 2007 - IPC G02B17/08

Abstract RU 2294551 C2

FIELD: optics.

SUBSTANCE: correction lens element is made of two lenses - flat-concave and flat-convex, made of one sort of glass and with equal axial thickness d_M, calculated from mathematical formula noted in invention formula. Flat-concave lens, facing the object with its concave side, is inclined for angle, determined from mathematical formula, while flat-convex lens, with its flat side touching the flat surface of flat-concave lens, is shifted in meridian plane relatively to the center of flat-concave lens.

EFFECT: simplified manufacturing technology and control over geometric parameters of decentralized correction element with high quality of correction of aberrations.

2 dwg

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RU 2 294 551 C2

Authors

Chuprakov Sergej Aleksandrovich

Dates

2007-02-27—Published

2005-05-03—Filed