Viewfinder device with light deflecting feature for changing the

Details Viewfinder device with light deflecting feature for changing the Viewfinder device with light deflecting feature for changing the

1995-02-07

1997-10-28

Blankenship, Howard B.

Photography

With viewfinder

Selective or adjustable viewfinder field

396386, G03B 1310

Patent

active

056825641

ABSTRACT:
A viewfinder device is arranged to have a pair of light deflecting members disposed in front and in rear of an objective lens, to drive the front light deflecting member to guide light of a left side area of a field of view and light of a right side area of the field of view alternately to the objective lens, and to drive the rear light deflecting member to guide light fluxes thus obtained from the objective lens alternately to the eye of a person taking a sight of the field of view. This arrangement enables the viewfinder device to make a wide range of field sightable and yet permits a reduction in size of the objective lens.

REFERENCES:
patent: 4478493 (1984-10-01), Yokota
patent: 5194886 (1993-03-01), Mukai et al.

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