3-d motion picture projection apparatus

Details 3-d motion picture projection apparatus 3-d motion picture projection apparatus

G - Physics

03

B

88/4

G03B 35/16 (2006.01) G03B 1/20 (2006.01)

Patent

CA 2024570

In an alternate eye 3-D motion picture projection apparatus of the rolling loop type, light projection is accomplished by the combination of focal plane shutters that are coupled to the rotor of the projector and a supplementary shutter arranged to trim the projected light so that discrete "left eye" and "right eye" images are projected. Various embodiments are disclosed in which a rotary blade shutter is located at the stop of the projection lens. Where there are two projection lenses, a single blade or two counter-rotating blades trim the light projected through both lenses.

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