VIEWFINDER FOR CONTINUOUS SIGHTING Russian patent published in 2007 - IPC G03B13/02

Abstract RU 2305306 C2

FIELD: optical instruments.

SUBSTANCE: viewfinder comprises pentagonal prism, objective lens, and ocular. The pentagonal prism is made of mirror surface composed of mirrors and rotating image-recovering mirror that rises synchronously with the movable mirror of photographic camera. The trajectory of the rise of the rotating mirror differs from the circular trajectory.

EFFECT: expanded functional capabilities.

4 cl, 3 dwg

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RU 2 305 306 C2

Authors

Ignatenko Boris Illarionovich

Dates

2007-08-27—Published

2005-06-14—Filed