Internal magnetic shield for cathode ray tube

Details Internal magnetic shield for cathode ray tube Internal magnetic shield for cathode ray tube

1975-09-10

1977-04-19

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313479, H01J 2906, H01J 2907

Patent

active

040190854

ABSTRACT:
An internal magnetic shield has a funnel of generally rectangular cross section and apertures disposed in all the walls of the funnel. Such shield is used in a color cathode ray tube to allow heat dissipation from a shadow mask to a funnel portion of an enclosed envelope of the tube.

REFERENCES:
patent: 2630543 (1953-03-01), Cage
patent: 3546517 (1970-12-01), Veith
patent: 3549932 (1970-12-01), Lindeman
patent: 3737703 (1973-06-01), Tsuneta et al.
patent: 3789254 (1974-01-01), Yamazaki et al.
patent: 3846658 (1974-11-01), Kasai
Sarbacher, "Encyclopedia Dictionary of Electronics and Nuclear Engineering," Prentice-Hall, Inc.; Englewood Cliffs, N. J.; 1959.

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