Optical viewing system for viewing 3-D images
US5559632A · kind A · utility
Inventors
Key dates
| Filing date | Sep 7, 1993 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Sep 7, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/243
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Improved methods for 3-D motion picture, video or video game images with a one camera system. When a scene is photographed using this system to create 3-D, the scene must be lit so that the midground light intensity is approximately 50% greater than the intensity on the foreground and the background light intensity is approximately double that of the foreground with some subjects in the scene being backlit as well. The scene is photographed by a movable video or motion picture camera moving about the scene at a constant angular velocity in the range of 25-60 degrees per second. Additional cameras photograph the scene from fixed locations spaced approximately 120 degrees apart about the scene. When editing the 3-D film or video tape a method is used to alleviate dizziness by inserting approximately 5-40 seconds of the flat shots from said fixed locations between segments of 3-25 seconds of film or video shot by said moving camera and providing viewing glasses having lenses, one of metallized (mirrored) plastic film creating a silvered effect, void of spectral peaks and of color absorption across all wavelengths, and which gives the lens a neutral density in the range of 0.5 to 2.0; …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.