Liquid coupling system for video projectors
US4511927A · kind A · utility
20Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 1983 |
| Grant date | Apr 16, 1985 |
| Priority date | — |
| Expiry date | Jan 10, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/894
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid coupling system for a video projector having a liquid in intimate contact with a CRT screen and the first lens element of the lens arrangement. The liquid is optically transparent and performs the additional function of absorbing heat and x-rays emanating from the CRT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.