Optics: image projectors – Structurally related projector and screen
Patent
1984-12-21
1986-10-21
Haroian, Harry N.
Optics: image projectors
Structurally related projector and screen
353119, G03B 2124
Patent
active
046182322
ABSTRACT:
A desk top microfilm reader for use on horizontal flat surfaces having a housing structure which encloses projection means and microfilm receiving means. A supporting arm extends from the housing structure to reflect images projected from the housing structure onto a flat planar surface which is only optically connected to the projection means. Both the microfilm and the projection surface are in horizontal planes.
REFERENCES:
patent: 2258382 (1941-10-01), Goebel
patent: 2712266 (1955-07-01), Cherouvrier
patent: 3733121 (1973-05-01), Smitzer
patent: 3941466 (1976-03-01), Shah
patent: 4133605 (1979-01-01), Wiggin
patent: 4312578 (1982-01-01), Wells et al.
Bell & Howell Company
Haroian Harry N.
Johnson Neal C.
Samlan Alan B.
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