Color picture tube and aperture mask therefor
US4389592A · kind A · utility
1Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1982 |
| Grant date | Jun 21, 1983 |
| Priority date | — |
| Expiry date | Jan 28, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/142
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A television tube having an electron gun and an aperture mask with a plurality of line of sight openings in the aperture mask wherein the line of sight openings in the aperture mask are partially defined by material on the cone side surface of the aperture mask and partially defined by material on the grade side surface of the aperture mask with the aperture mask located in the television tube with the cone side of the aperture mask facing the electron guns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.