1988-06-07
1990-09-18
Adams, Russell E.
354429, G03B 7099
Patent
active
049581856
ABSTRACT:
In a photographing apparatus such as a single lens reflex camera, metering photoelectric conversion elements are provided in the optical path of an imaging optical system or a finder optical system and the line width of the pattern forming the elements is set to a width undiscernable by the human eye. Thus, with such metering photoelectric conversion elements, no irregularity of the quantity of amount is caused in the image observed through the finder or the image photographed.
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patent: 3823411 (1974-07-01), Hasegawa et al.
patent: 3864035 (1975-02-01), Kuehnle
patent: 4064516 (1977-12-01), McLaughlin et al.
patent: 4486096 (1984-12-01), Endo et al.
patent: 4682873 (1987-07-01), Ohmura et al.
Fujiyama Yasutomo
Kamiya Osamu
Adams Russell E.
Canon Kabushiki Kaisha
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