Stereoscopic television system
US5003385A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Aug 23, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stereoscopic television system has first and second openings through which light rays reflected from an object to be viewed enter. The system includes a first polarizer polarizing the light rays passing through the first opening and a second polarizer polarizing light rays passing through the second opening. The polarization planes of the first and second polarizers are different from each other. Optics are provided for aligning the center axes of the light rays passing through the first and second openings to generate aligned light rays. A polarizer switch receives the aligned light rays and selectively and alternately passes light rays polarized by one of the first and second polarizers. A zoom lens is provided for optically treating the aligned light rays for zoom operation. A video camera converts optical images of the light rays passing through the polarizer switch and the zoom lens into electrical signals corresponding to the light rays passing through the first and second openings. A television system then displays an image of the object, based on the electrical signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.