Transparency viewing device

Details Transparency viewing device Transparency viewing device

1981-04-08

1984-01-24

Mancene, Gene

Card, picture, or sign exhibiting

Photographic transparency viewer, e.g., x-ray viewer

40367, G02B 2702

Patent

active

044267983

ABSTRACT:
An illuminated transparency viewing device for viewing transparent loose-leaf pages and for sorting 35 mm slides. The device has a smooth viewing surface and a ribbed sorting surface on opposite sides of the device; wherein a double-sided reflector surface is hinged between the two sides so as to pivot from a first position, wherein light is reflected through the smooth viewing surface to a second position, wherein light is reflected through the ribbed sorting surface.

REFERENCES:
patent: 2298754 (1942-10-01), Davis
patent: 2602253 (1952-07-01), Diamond
patent: 2646637 (1953-07-01), Nierenberg et al.
patent: 3200523 (1965-08-01), Zagel

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