Camera

Details Camera Camera

1995-02-16

1997-02-18

Gray, David M.

Photography

Camera detail

Film restraining means or pressure plate

G03B 1700

Patent

active

056045557

ABSTRACT:
A camera includes a camera body and a regulation component mounted directly to the camera body with flatness of the film desired for photography being maintained by rail surfaces and a regulation surface. The dimensions of the camera body, the regulation component and the dimension allowances of the camera body and the film regulation component have a relationship that forms a space smaller than the thickness of the photographic film when the regulation component mounting surface and the camera body mounting surface of the regulation component are in contact, allowing the regulation component to be mounted directly to the camera body while the regulation surface of the regulation-component and the outer rail surface of the camera body maintain flatness. Alternatively, deformation units may be used to deform plastically or elastically with the tightening of an anchoring unit, which directly anchors the regulation component to the camera body to maintain flatness of the outer surfaces of the camera body and the regulation surfaces of the regulation component. The camera body and the regulation component may be made of the same material or materials with the same or nearly the same coefficients of thermal expansion so that when temperature changes occur involving the camera, the amount of thermal deformation of both the camera body and the regulation component is the same to assist in maintaining the flatness of the film regulation surfaces.

REFERENCES:
patent: 4152062 (1979-05-01), Kobori
patent: 4685790 (1987-08-01), Uematsu
patent: 4972213 (1990-11-01), Stonoeham et al.

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