Rechargeable transparent slide viewer apparatus

Details Rechargeable transparent slide viewer apparatus Rechargeable transparent slide viewer apparatus

1980-08-04

1983-02-08

Mancene, Gene

Card, picture, or sign exhibiting

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

Portable slide viewer

40365, 40362, 40464, 353 85, 350250, 350577, G02B 2702, G02B 2704, G03B 2120, G02B 702

Patent

active

043720684

ABSTRACT:
Apparatus for viewing a transparency includes a rechargeable battery and a telescoping lens housing which moves inwardly and outwardly with respect to a housing in which is disposed the rechargeable battery, a light source, and a solid diffuser/reflector block for diffusing and reflecting light from the light source over substantially the entire area of the transparency.

REFERENCES:
patent: 535862 (1895-03-01), Sawyer
patent: 1943533 (1934-01-01), Hubschmann
patent: 2206865 (1940-07-01), David et al.
patent: 2239032 (1941-04-01), Boch
patent: 2419339 (1947-04-01), Dennis
patent: 2513576 (1950-07-01), Luray
patent: 2646637 (1953-07-01), Nierenberg et al.
patent: 2720045 (1955-10-01), Miller
patent: 2805500 (1957-09-01), Dixler
patent: 3143035 (1964-08-01), Morgan
patent: 3283650 (1966-11-01), Shoemaker
patent: 4082440 (1978-04-01), Bennett

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