Color selection apparatus for cathode ray tube
US6667569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2001 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | Sep 21, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/0744
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A color selection apparatus for a cathode ray tube, having a panel as a front glass that is formed to be flat, including a pair of supporting members disposed to be separated by a predetermined distance, a pair of elastic members disposed between the supporting members to be coupled with the supporting members, and a mask coupled with the supporting members and formed with a plurality of electron beam passing apertures, the elastic members having a plurality of overlapped plate members, so that it becomes possible to maintain a tension of the mask formed with the plurality of electron beam passing apertures optimally by varying the shapes of the elastic members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.