Patent · US Expired

Panel for color cathode-ray tube

US5386174A · kind A · utility

9Cited by
3References
3Claims
0Family size

Inventor

Key dates

Filing dateMay 21, 1992
Grant dateJan 31, 1995
Priority date
Expiry dateMay 21, 2012

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J2229/862
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

Disclosed is a front panel capable of accommondating a shadow-mask high-quality color cathode-ray tube. By using the panel in combination with a shadow mask employing non-deforming steel having a small coefficient of expansion, a panel which is well-balanced and easy to view is obtained. The front panel consists of a transparent glass material and has an outer surface and an inner surface formed to be curved surfaces. The radius of curvature in one direction of the curved surface forming the outer surface of the front panel is greater than the radius of curvature in a direction perpendicular to the first-mentioned direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.