Glass bulb for a cathode ray tube
US5445285A · kind A · utility
17Cited by
8References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1994 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Jun 30, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/861
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A glass bulb for a cathode ray tube having a thinner wall thickness to reduce the weight while there is little possibility of causing an implosion. A compression layer having a compressive stress .sigma..sub.KC is formed in a region of a panel portion 3 by physically strengthen the portion. The relation among the compressive stress .sigma..sub.KC, the breaking stress .sigma..sub.SG of the glass bulb and the maximum value .sigma..sub.VTmax of a tensile strength is 1<3.sigma..sub.VTmax /.sigma..sub.SG .ltoreq.1-(.sigma..sub.KC /.sigma..sub.SG).ltoreq.1.60.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.