1979-10-09
1982-01-12
Corbin, John K.
G02B 960
Patent
active
043102239
ABSTRACT:
A short focal length high magnification lens system for projecting ultra-fiche images as a large aperture with substantially diffraction limited resolution in the visual spectrum and a compact vertex-to-vertex distance.
REFERENCES:
patent: 2130347 (1938-09-01), Holst et al.
patent: 3551031 (1970-12-01), Grey
patent: 3638996 (1972-02-01), Klein
patent: 3998528 (1976-12-01), Fleischman
patent: 4080048 (1978-03-01), Kimura
Alexander Cruzan
Barnes John C.
Corbin John K.
Minnesota & Mining Manufacturing Company
Sell Donald M.
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