Focusing aid for copying cameras

Details Focusing aid for copying cameras Focusing aid for copying cameras

1993-09-14

1995-02-28

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Focus or magnification control

355 43, 355 60, G03B 2752

Patent

active

053942183

ABSTRACT:
A device for assisting a person in focusing a camera on a surface is provided. A mirror at an angle of 45.degree. to the horizontal, and an incandescent filament, are mounted on a device that may rest on the surface to be photographed. The distance from the filament to a point on the mirror equals the distance from that point to the surface. By focusing the camera on the image of the filament that appears in the mirror, the camera will be correctly focused on the surface.

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patent: 5259339 (1993-08-01), Ziegler

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