Cathode-ray tube
US4535907A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1984 |
| Grant date | Aug 20, 1985 |
| Priority date | — |
| Expiry date | Mar 5, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/862
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode-ray tube has a glass panel section which has a substantially rectangular faceplate and a skirt extending from the face plate along the tube axis, when Hs, Hl and Hd respectively denote the length of the skirt at the central portion of the short side, that at the central portion of the long side and that at the corner and ts, tl and td respectively represent the thickness of the faceplate in the vicinity of the center portion of the short side, that in the vicinity of the center portion of the long side and that in the vicinity of the corner the length of the skirt and the thickness of the faceplate respectively have relations defined by the following equations or inequalities (1) and (2): EQU Hs.gtoreq.Hd and Hl.gtoreq.Hd (1) EQU tl.gtoreq.ts and td.gtoreq.ts (2)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.