Optical: systems and elements – Prism – With reflecting surface
Patent
1992-09-08
1994-05-03
Gellner, Michael L.
Optical: systems and elements
Prism
With reflecting surface
359707, G03B 1302
Patent
active
053092015
ABSTRACT:
A camera viewfinder has a viewfinder lens comprising a plastic lens element with a molded integral aiming circle whose molded optical finish is different than the molded optical finish of the remainder of the lens surface to make the aiming circle visible.
REFERENCES:
patent: 1960254 (1934-05-01), McCandless
patent: 2350237 (1944-05-01), Kende et al.
patent: 4537732 (1985-08-01), Ueda et al.
Blankenship Howard B.
Eastman Kodak Company
Fields Roger A.
Gellner Michael L.
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