1977-12-27
1979-10-23
Hix, L. T.
354199, 354225, G03B 1308, G03B 1316, G03B 1320
Patent
active
041718909
ABSTRACT:
Disclosed is a reflex rangefinder system for a camera having a pair of li reflecting members mounted to reflect light rays from the scene in the viewfinder system. The members are dichroically coated with different complementary colors such that the dual image formed when the objective lens is out of focus have different colors to enhance the distinction for easy focusing.
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patent: 3618498 (1971-11-01), Eppinger
patent: 3696724 (1972-10-01), Hartmann
patent: 4005447 (1977-01-01), Filipovich
patent: 4072969 (1978-02-01), Cheavin
Mizuki Yoshiaki
Suwa Michiharu
Fitz-Gerald Roger M.
Hix L. T,.
Nihon Beru-Haueru Kabushiki Kaisha (Bell & Howell Japan, Ltd.)
Passman Aaron
Stotland Harold V.
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