Cathode ray tube and method of manufacture
US4704094A · kind A · utility
10Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1985 |
| Grant date | Nov 3, 1987 |
| Priority date | — |
| Expiry date | Dec 9, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/0716
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high performance color cathode ray tube is manufactured by welding a shadow mask under very high tension to a metal ring brazed to the tube envelope. The shadow mask material has a high yield strength and a thermal coefficient of expansion near that of the ceramic ring portion of the envelope to which it is secured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.