Camera viewfinder with uniform component positioning regardless

Details Camera viewfinder with uniform component positioning regardless Camera viewfinder with uniform component positioning regardless

1995-07-21

1996-08-20

Mathews, A. A.

Optical: systems and elements

Prism

With reflecting surface

354225, 359819, G03B 1306, G03B 1308

Patent

active

055483666

ABSTRACT:
A camera having components of a viewing optical system and a display optical system fixed at positions which do not require change for photographic lenses having different angles of view. The viewing optical system allows a photographer to view a subject through a photographic lens. The viewing optical system includes an eye piece and an objective lens positioned between the eye piece and the photographic lens. The display optical system includes a framework which displays information. The display optical system allows the photographer to view the information displayed on the framework through the eyepiece. The respective positions of the eye piece, the objective lens and the framework are fixed and do not require change to allow the camera to be useable with different photographic lenses having different, respectively corresponding angles of view.

REFERENCES:
patent: 4526444 (1985-07-01), Fantone et al.
patent: 4527875 (1985-07-01), Shibata
patent: 4545655 (1985-10-01), Fantone et al.

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