Image display tube

Details Image display tube Image display tube

1985-09-19

1989-05-02

Barr, Josephine

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313407, 252513, 252512, 420584, H01J 2907, H01B 102

Patent

active

048271780

ABSTRACT:
An image display tube constructed by use of in-tube parts comprising an alloy constituting essentially of (i) at least one of 0.5 to 4% by weight of Ti, 0.1 to 3.0% by weight of Al, 0 to 1% by weight of C, 0 to 5% by weight of Co, 0 to 12% by weight of Mo, 0 to 5% by weight of W, 0 to 4% by weight of Mn, 0 to 3% by weight of Si, 0 to 2% by weight of Be, 0 to 0.5% by weight of Cu, 0 to 0.1% by weight os S, 0 to 2% by weight of Nb and 0 to 2.0% by weight of Zr, (ii) 30 to 45% by weight of Ni, (iii) 3 to 15% by weight of Cr and (iv) a balance consisting essentially of Fe; thermoelasticity coefficient of the alloy being within the range of .+-.20.times.10.sup.-6 /.degree.C. In the color image display tubes according to this invention, no color deviation is perceived all over the screen and thus a high-quality image is obtained.

REFERENCES:
patent: 3895939 (1975-07-01), Brooks et al.
patent: 3900315 (1975-08-01), Vogt et al.
patent: 4547338 (1985-10-01), Grobner et al.
patent: 4713576 (1987-12-01), Misumi et al.

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