Cathode ray tube having an improved front panel

Details Cathode ray tube having an improved front panel Cathode ray tube having an improved front panel

1997-03-04

1998-09-29

Patel, Ashok

Electric lamp and discharge devices

Cathode ray tube

Envelope

220 31A, 220 31R, H01J 3100

Patent

active

058149333

ABSTRACT:
A color cathode ray tube includes a front panel having a phosphor screen deposited on its interior surface. A contour of the interior surface is configured such that a radius Rx of a surface curvature of sections parallel to a horizontal axis and a radius Ry of a surface curvature of sections parallel to a vertical axis of the front panel are substantially constant, respectively, within a screen area of the phosphor screen.

REFERENCES:
patent: 4537321 (1985-08-01), Tokita
patent: 4537322 (1985-08-01), Okada et al.
patent: 5386174 (1995-01-01), Ishii
patent: 5568011 (1996-10-01), Raghland, Jr. et al.

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