G - Physics – 03 – B
Patent
G - Physics
03
B
88/13
G03B 13/04 (2006.01) G02B 27/10 (2006.01) G03B 13/06 (2006.01) G03B 13/24 (2006.01)
Patent
CA 1090177
A B S T R A C T To facilitate viewing of scenes photographed by a motion picture camera under dim lighting conditions, a viewing system for aiming and focusing the motion picture camera incorporate a ground glass plate and a beam splitter with the light from a scene photographed being, in turn, reflected from a conventional rotating camera shutter, through the ground glass plate and then reflected from one side of a beam splitter and then through an optical system to an eyepiece. A solid-state lamp such as red light emitting diodes are disposed on the other side of the beam splitter with the red light being trans- mitted through the beam splitter onto the ground glass plate which has a set of lines defined by metal strips from which the red light is reflected back onto the beam splitter and to the eyepiece, such set of lines defining the boundary within which the scenes are required to be located.
283800
Gottschalk Robert E.
Mayer Albert L.
Panavision Incorporated
Smart & Biggar
LandOfFree
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