Method and device for displaying a video image and method for the production of said device
US6137461A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1998 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Sep 14, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3129
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a device for displaying a video image with a source emitting at least an intensity-modulated light bundle (41, 42) and a deflecting device (41, 42) for deflecting the light bundle, for the angle-proportional scanning of N.sub.p image points in lines over an angle .alpha..sub..rho., and for the angle-proportional scanning of the light bundle of N.sub.z, lines of the video image over an angle .alpha..sub.z, the source emits two light bundles which can be modulated independently from one another, the first light bundle being modulated with the video information for the illumination of a first image point controlled by raster scanning and the second light bundle being modulated with the video information for the illumination of a second image point, wherein the video information of the second image point is offset relative to the video information of the first image point by m.sub.z lines of an image and m.sub..rho. image points of a line, with whole numbers m.sub.z .ltoreq.N.sub.z and m.sub..rho. .ltoreq.N.sub..rho., and m.sub.z and/or m.sub..rho. .noteq.0, and an optical system is provided which combines the two light bundles at a common real or virtual point (54) situated in fron…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.