Cathode-ray tube and its getter supporter
US6452322B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1999 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Nov 18, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J7/186
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A getter supporter of a cathode-ray tube according to the present invention comprises a mounting portion to be fixed to an inside of the cathode-ray tube at one end thereof, a getter holder for holding a getter at the other end thereof, and a spring portion for connecting the mounting portion and the getter holder, in which a contact support portion contacting with the inner surface of the funnel is provided on the spring portion at a position spaced apart in the longitudinal direction from the position of the getter holder. Accordingly, fine cracks of the funnel glass due to heat generation of the getter at getter flashing and heat generation of the contact support portion due to high frequency for heating can be prevented, and also the deformation of the getter supporter by the heat conducted to the contact support portion and the spring pressure can be prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.