Cathode-ray tube
US5420475A · kind A · utility
2Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1991 |
| Grant date | May 30, 1995 |
| Priority date | — |
| Expiry date | Feb 25, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/86
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode-ray tube includes a screen region, for displaying images, which consists of two glass layers. An exterior glass layer is formed of glass having a higher X-ray absorption coefficient. An interior glass layer is formed of glass which hardly causes browning. These exterior and interior glasses are connected together by the process of adhesion for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.