Film strip recorder and viewer

Details Film strip recorder and viewer Film strip recorder and viewer

1977-04-08

1978-09-12

Griffin, Donald A.

Optics: image projectors

Plural projection paths with single light source

350 9610, 353 34, 353 38, 355 46, G02B 514, G03B 3300, G03B 2126, G03B 2744

Patent

active

041141687

ABSTRACT:
A compact optical viewer and recorder which employs a Philips-type cassette. Small lenses project microimages from the film strip wound upon the cassette upwardly and onto a plurality of mirrors. The mirrors function to compress the throwing distance of the lenses, the final image appearing on a screen.

REFERENCES:
patent: 3642360 (1972-02-01), Ataka
patent: 3704068 (1972-11-01), Waly
patent: 3712724 (1973-01-01), Courtney-Pratt
patent: 3824609 (1973-02-01), Yevick
patent: 3853395 (1974-12-01), Yevick
patent: 3864034 (1975-02-01), Yevick
patent: 3865485 (1975-02-01), Yevick
patent: 3876900 (1975-04-01), Amatsuka et al.
patent: 3941467 (1976-03-01), Kapany et al.
patent: 3950094 (1976-04-01), Kano et al.
I.B.M. Technical Disclosure Bulletin, vol. 14, No. 2, 7/1971, Line Illuminator for Back-Lit Display.
The Focal Encyclopedia of Photography, Desk Edition 1960, MacMillan Co., pp. 866 & 867.

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