Stereoscopic motion picture scanning reproduction method and apparatus
US4089597A · kind A · utility
Inventor
Key dates
| Filing date | Mar 11, 1976 |
| Grant date | May 16, 1978 |
| Priority date | — |
| Expiry date | Mar 11, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B35/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
My invention relates to photographing scenes with standard motion picture photographic equipment in which there is a relative motion between the scene and camera with the purpose of stereoscopic viewing of the motion picture or stationary reproduction without the need for viewing aids at the eyes. The system is compatible with scenes photographed without this relative motion, where with the reproduction is viewed in conventional two dimensions. The surface of the processed film (or other appropriate media) is arrayed in a vertical plane and constrained to move horizontally around a segment of a circle of radius 2R. At the center of the film circle is a film motion compensator which can be a multi faceted mirror drum of radius R. The film is rapidly scanned about the center of this circle by a light source directed through the film and toward the center of the mirror drum. The optical film scanner contains projection optics on the inside of the film circle that rotates the bright central image at the mirror drum centerline by a fixed 90.degree. and develops a horizontally scanning and circularly moving pseudo projection point to provide a suitably large and erect picture format on a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.