Patent US4168885A successfully refreshed from Google Patents.
US4168885A
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Compatible 3-dimensional motion picture projection system
Assignee: Marks Polarized Corp
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Filing: 1977-01-31
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Granted: 1979-09-25
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Expires: 1997-01-31
Abstract
Abstract Stereo pairs suitable for motion picture projection are derived from conventionally taken motion picture film by selection of frames and rearrangement thereof in side by side relationship upon a continuous strip of motion picture film. The pairs so prepared may be incorporated into film containing conventionally photographed stereo frames to provide a compatible system for 3-dimensional motion picture projection.
Inventors
- 👤 Arthur P. Kent
- 👤 Mortimer Marks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:38
CPC Classifications
G; G03; G03B; G03B21/00; G03B35/00; G03B35/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A device for editing a single strip motion picture film produced by use of a monocular camera for the purpose of creating time delay stereo image pairs printed on single frames of a second single strip motion picture film, said device comprising projecting means for selectively projecting a first frame simultaneously with any one of a selected plurality of frames preceding and succeeding said first frame on said single strip motion picture film so as to form a time delay stereo pair; said projecting means comprising a selectively operable illumination source and a projection lens for each of said plurality of frames and said first frame, switch means for activating the illumination sources for said first and a selected one of said plurality of frames, polarizing means for selectively polarizing the light to any of said frames in a given direction or at 90 degrees to said given direction, and means for marking said first frame and a chosen one of said plurality of frames to form a time delay stereo pair.
Claim 2
Independent Claim
172 words
A device for editing a single strip motion picture film produced by use of a monocular camera for the purpose of creating time delay stereo image pairs printed on single frames of a second single strip motion picture film, said device comprising projecting means for selectively projecting a first frame simultaneously with any one of a selected plurality of frames preceding and succeeding said first frame on said single strip motion picture film so as to form a time delay stereo pair; said projecting means comprising a selectively operable illumination source and a projection lens for each of said plurality of frames and said first frame, switch means for activating the illumination sources for said first and a selected one of said plurality of frames, polarizing means for selectively polarizing the light to any of said frames in a given direction or at 90 degrees to said given direction, and means for marking said first frame and a chosen one of said plurality of frames to form a time delay stereo pair.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |