Television receiver or projection type
US4563699A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1983 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Feb 18, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/31
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A television receiver of projection type including a color cathode ray tube having a phosphor face forming a color phosphor pattern, a projection screen, a projection lens for projecting an image on the cathode ray tube on the projection screen, and a prism plate having a plurality of prisms disposed in front of the color cathode ray tube for splitting a light path from the color cathode ray tube so as to shift the images relative to each other by a predetermined distance on the projection screen, wherein the inclination angle of each prism of the prism plate is selected different between at central portion and at peripheral portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.