Optics: image projectors – Methods
Patent
1980-02-27
1981-12-22
Shepperd, John W.
Optics: image projectors
Methods
353122, 353 20, G03B 2100
Patent
active
043067832
ABSTRACT:
A system and method of obtaining the maximum amount of information availa in photographs or other objects in which the optical density is far below normal. The system makes use of an unconventional system of illumination combined with conventional projection imaging optics to form a real image of the object using only light scattered by the individual particles which form the object.
REFERENCES:
patent: Re20748 (1938-06-01), Bocca
patent: 2641963 (1953-06-01), Carter
patent: 3498705 (1970-03-01), Ooue et al.
patent: 3658415 (1972-04-01), Miles
patent: 3770344 (1973-11-01), Fukushima
patent: 3787117 (1974-01-01), Watkins
Crane Melvin L.
Ellis William T.
Sciascia R. S.
Shepperd John W.
The United States of America as represented by the Secretary of
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