Optics: motion pictures – Camera and/or projector drive mechanisms – With continuous feed and intermittent film arresting means
Patent
1998-11-17
2000-09-19
Adams, Russell
Optics: motion pictures
Camera and/or projector drive mechanisms
With continuous feed and intermittent film arresting means
352159, 352204, G03B 100, G03B 156, G03B 908
Patent
active
061201510
ABSTRACT:
A system and method are disclosed for transporting film in a motion film projector. The system includes a set of film carriages and a set of secondary shutters mounted on a conveyor, which continually advances the film carriages and the secondary shutters along a linear path oriented orthogonally with respect to an optical axis of a aperture block, through which images on the film are projected. Each film carriage receives a loop of film and then rolls the loop of film in the direction of the aperture block. A deceleration mechanism periodically engages and decelerates the film. Once the film has been decelerated, a section of the film is temporarily secured in alignment with the aperture block and an image disposed on the film is projected. The conveyor then moves a secondary shutter into alignment with the aperture block to shutter the aperture block.
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Adams Russell
Advanced Image Systems, Inc.
Fuller Rodney
LandOfFree
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