CRT with internal neck coating of crystalline tin oxide for suppressing arcing therein
US4518893A · kind A · utility
3Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1982 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Nov 23, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/882
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
CRT (cathode-ray tube) comprises an evacuated glass envelope, an electron-gun mount assembly housed in the envelope, the electrodes of said envelope being confined by closely-spaced glass surfaces, and a smooth, electrically-conductive coating of tin oxide on said glass surfaces opposite electrodes of said mount assembly. The electrically-conductive coating is electrically floating and, preferably, is a substantially-continuous circumferential band on the inner surface of the neck of the CRT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.