Cathode ray tube with liquid coolant and reduced X-ray emission
US4568852A · kind A · utility
5Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1983 |
| Grant date | Feb 4, 1986 |
| Priority date | — |
| Expiry date | Mar 7, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/89
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode ray tube apparatus having a glass panel in front of the phosphor screen made of a material which has an X-ray absorption coefficient larger than that of the backing on which the phosphor layer is applied. The two panels are separated by means of a spacer and a liquid coolant is incorporated into the space between the panels to enhance the heat radiation effect of the phosphor surface and to avoid the radiation of X-rays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.