Cathode ray tube with light reflection film
US4831307A · kind A · utility
9Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1987 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Dec 23, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/8918
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a cathode ray tube, a single layer for prevention of a reflection of light rays is formed on a face plate having a non-spherical outer surface. The thickness of the layer is continuously decreased from the center region toward the peripheral regions of the face plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.