Patent
1980-12-12
1982-03-16
Gellner, Michael L.
354152, G03B 7099
Patent
active
043198163
ABSTRACT:
An improved prism viewfinder wherein in the region of the beam-incidence surface of the prism there is provided a partially transmitting mirrored surface which partially reflects the light beam of an angle somewhat greater than 90.degree. onto a light-sensing organ disposed adjacent to the prism.
REFERENCES:
patent: 3842424 (1974-10-01), Tsunekawa et al.
patent: 4021823 (1977-05-01), Mujata
patent: 4134654 (1979-01-01), Murakami et al.
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