Color picture tube with an electron shield

Details Color picture tube with an electron shield Color picture tube with an electron shield

1988-02-19

1990-06-05

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313402, H01J 2907, H01J 2984

Patent

active

049316907

ABSTRACT:
Disclosed is a color picture tube having an electron shield for shielding secondary electrons. The electron shield is formed by press-shaping a strip of a very low carbon steel containing not more than 0.02% by weight of carbon and has folds and/or corrugations formed at its marginal edge area.

REFERENCES:
patent: 3855493 (1974-12-01), Snook et al.
patent: 4367430 (1983-01-01), Matsushita et al.
patent: 4472657 (1984-09-01), Sakurai et al.
patent: 4517487 (1985-05-01), Tamburrino

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