Glass panel for a CRT having a strengthened flat face portion

Details Glass panel for a CRT having a strengthened flat face portion Glass panel for a CRT having a strengthened flat face portion

1998-02-13

2000-09-19

Patel, Vip

Electric lamp and discharge devices

Cathode ray tube

Envelope

313461, 348821, 220 21A, H01J 3100, H01J 2910, H04N 565, H01K 128

Patent

active

061217239

ABSTRACT:
A glass panel for a cathode ray tube having a substantially flat face portion and being safe and light in weight wherein the smallest value of the averaged radius of curvature of an outer face of the face portion is 25,000-50,000 mm and the outer face portion of the face portion has a compressive stress of 6-30 MPa in absolute value.

REFERENCES:
patent: 5386174 (1995-01-01), Ishii
patent: 5445285 (1995-08-01), Sugawara et al.
patent: 5536995 (1996-07-01), Sugawara et al.
patent: 5606217 (1997-02-01), Hirai et al.
patent: 5698939 (1997-12-01), Vriens et al.
patent: 5925977 (1999-07-01), Sugawara et al.

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