Radiant energy – Photocells; circuits and apparatus – Housings
Patent
1976-03-04
1977-10-25
Smith, Alfred E.
Radiant energy
Photocells; circuits and apparatus
Housings
250216, 350 67, H01J 502, H01J 3912
Patent
active
040557618
ABSTRACT:
A light receiving device for a photoelectric conversion element in an exposure meter etc., wherein a light converging optical system and a photoelectric conversion element are held in intimate contact with a transparent elastic sheet interposed therebetween.
REFERENCES:
patent: 2918584 (1959-12-01), Edsberg et al.
patent: 3215850 (1965-11-01), Goodman
patent: 3880528 (1975-04-01), Petersen et al.
Moore David K.
Nippon Kogaku K.K.
Smith Alfred E.
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