Photocopying – Projection printing and copying cameras – Collapsible or portable
Patent
1980-10-08
1982-10-12
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Collapsible or portable
355 27, 355 44, 355 71, G03B 2752
Patent
active
043536409
ABSTRACT:
A compact and transportable apparatus for making instant prints from slides or transparencies, without the need for darkroom facilities, is attachable to standard projection equipment. The self-contained unit comprises: a housing having a lens-shutter assembly and means for attaching a film pack in operable relation to the lens-shutter assembly; a slide station having means for holding a slide or transparency to be copied; and, a light diffuser assembly, for evenly illuminating the slide during copying, whereby an optical path is formed starting in the diffuser assembly, passing through the slide or transparency, the lens-shutter assembly, and ending on said film pack. The lens and slide station of standard projection equipment may be employed with the attachable unit which positions the film pack at a distance within focusing range of the projection equipment, a shutter in the attachable unit controlling the incidence of light. The attachable unit may be adjusted for print size and focus by removably positioning a translucent member at the film plane, and adjusting the image for sharpness.
REFERENCES:
patent: 2231395 (1941-02-01), Schlegel
patent: 2797615 (1957-07-01), Coleman
patent: 3677636 (1972-07-01), Stein
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patent: 4026651 (1977-05-01), Vitou
patent: 4082446 (1978-04-01), Driscoll et al.
patent: 4135784 (1979-01-01), Larrick
patent: 4184763 (1980-01-01), Handsman et al.
patent: 4230407 (1980-10-01), Moller
patent: 4239376 (1980-12-01), Wyller
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