Microfiche reading carrel

Details Microfiche reading carrel Microfiche reading carrel

1980-10-27

1982-07-27

Stephan, Steven L.

Optics: image projectors

Cabinet encloses projector and one side of screen

Reflector between lamp and screen

350123, 352104, 353 79, 353 97, 353119, G03B 2124

Patent

active

043414460

ABSTRACT:
The microfiche projector enlarges the image onto the flat white undersurface of the top panel of the enclosure which has a flat black interior. The viewer sees the image reflected in the adjustable 45.degree. mirror. The apparent image is about 50" in front of the user to reduce eye fatigue. The image is non-directional which allows considerable movement of the user.

REFERENCES:
patent: 1624816 (1927-04-01), Triana et al.
patent: 2015665 (1935-10-01), Eitzen
patent: 2174778 (1939-10-01), Croft
patent: 2562297 (1951-07-01), Cordonner
patent: 3246943 (1966-04-01), Holt
patent: 3893759 (1975-07-01), Crew

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