Color projector apparatus of single cathode ray tube type
US4533850A · kind A · utility
5Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1983 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Mar 10, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/006
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color projector apparatus including a single cathode ray tube of index-type having a first transparent panel with phosphor elements of three primary colors and an indexing element formed on the inner surface thereof, a second transparent panel located in front of the first transparent panel of cathode ray tube, a metal frame-shape spacer for supporting the second transparent panel, and a transparent liquid coolant filled into the space between the first and second transparent panels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.