Video projection system for projecting more than one picture
US6309072A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1999 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Nov 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video projection system for projecting more than one picture in which a light source for generating at least one light bundle, an intensity modulator and a spatial light bundle modulator, wherein they are controlled by a video signal, and at least one projection surface for displaying a determined quantity or quantities of individual pictures are arranged in the direction of light of a beam path. The video projection system contains a quantity or quantities of projectors which correspond(s) to the quantity or quantities of individual pictures, each projector having a spatial light bundle modulator, wherein they are optically connected with the light source. The light bundle is divided into a quantity or quantities of partial light bundles which correspond(s) to the quantity of projectors are arranged following the one light source, considered in the direction of the beam path, each of which partial light bundles has a partial beam path, followed in each partial beam path by an intensity modulator. The intensity modulator and the spatial light bundle modulator, are arranged in one of the partial beam paths, and are controlled by the signals of a video source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.