Cathode-ray tube with fixing springs for color selection electrode
US6057641A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 1994 |
| Grant date | May 2, 2000 |
| Priority date | — |
| Expiry date | May 19, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/0711
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode-ray tube having a color-selecting electrode which is secured to a fluorescent glass panel by fitting fixing springs provided on the color-selecting electrode to fixing pins, respectively, which are provided on the fluorescent glass panel. The fixing springs have a shape factor K in the range of from 10 mm.sup.3 /kg to 100 mm.sup.3 /kg, the shape factor K being given by EQU K=(thickness).times.(breadth).sup.2 .times.(height)/(length)/(weight of color-selecting electrode) Thus, it is possible to suppress the shift of the relative position of the fluorescent glass panel and the color-selecting electrode and minimize the incidence of product failures due to misregistration of colors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.