Camera with superimpose display device

Details Camera with superimpose display device Camera with superimpose display device

1995-03-03

1998-03-31

Peng, John K.

Television

Camera, system and detail

Optics

348341, 348232, 354409, 354408, 354 84, 354143, H04N 5225

Patent

active

057344280

ABSTRACT:
There is disclosed a superimpose device for a single-lens reflex camera, which has a finder optical system including a focusing screen, a pentagonal roof type prism, and an eyepiece lens, a reflection plate which is arranged near the prospective imaging plane the finder optical system, and has micro-prisms forming a display portion, a plurality of light sources arranged near the vertex of the prism, and a projection optical element for deflecting illumination light from each light source by a reflection surface, and projecting the deflected light toward a front upper portion of the prism. The display portion illuminated with the illumination light via the prism, and light reflected by the display portion is guided to the eyepiece lens.

REFERENCES:
patent: 4304472 (1981-12-01), Shinoda
patent: 4704022 (1987-11-01), Nozawa
patent: 5182443 (1993-01-01), Suda

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