TELESCOPIC GALILEI-TYPE OPTICAL SYSTEM Russian patent published in 2009 - IPC G02B23/00 

Abstract RU 2359295 C1

FIELD: instrument engineering.

SUBSTANCE: telescopic Galilei-type optical system consists of a lens system and an ocular. Lens system consists of two positive lenses, the first one of which is bonded of double convex and concave-shallow lenses, and the second one is double convex. Ocular is a single double concave lens. Dispersion factor for e line of ocular lens material can be more than 40 and less than 95.

EFFECT: increasing visible magnification, increasing diametre of entrance pupil and angle of vision in the area of objects, and improving image quality.

2 cl, 1 dwg

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RU 2 359 295 C1

Authors

Slobodjanjuk Vasilij Sergeevich

Shcheglov Sergej Ivanovich

Zubok Svetlana Nikolaevna

Drjagin Sergej Gennad'Evich

Dates

2009-06-20Published

2007-11-21Filed