High X-ray absorbing panel glass for cathode ray tubes

Details High X-ray absorbing panel glass for cathode ray tubes High X-ray absorbing panel glass for cathode ray tubes

1999-06-29

2000-08-15

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 69, 501 70, 501 71, C03C 3085, C03C 3087, C03C 3095

Patent

active

061036498

ABSTRACT:
A glass composition comprised of controlled amounts of BaO, SrO, ZnO and ZrO.sub.2, and alkali metal oxides has a high linear X-ray absorption coefficient of at least 34 cm.sup.-1 at a wavelength of 0.6 .ANG., satisfactory chromaticity and excellent resistance to devitrification, suitable for use as a panel glass of a cathode ray tube.

REFERENCES:
patent: 4277286 (1981-07-01), Boyd et al.
patent: 4337410 (1982-06-01), Van der Geer et al.
patent: 4376829 (1983-03-01), Daiku
patent: 4520115 (1985-05-01), Speit et al.
patent: 4830990 (1989-05-01), Connelly
patent: 5215944 (1993-06-01), Jones
patent: 5468692 (1995-11-01), Bock et al.
patent: 5649987 (1997-07-01), Greulich

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