Thermal compensation for color television picture tube aperture

Details Thermal compensation for color television picture tube aperture Thermal compensation for color television picture tube aperture

1973-08-22

1977-03-15

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

H01J 2907, H01J 2982

Patent

active

040126617

ABSTRACT:
In a color television tube, compensation for heating of a three-clip aperture mask assembly due, in large measure, to electron bombardment of the assembly, is improved by tilting the assembly about a horizontal axis as it is moved closer to the screen with increasing temperature. The tilt is achieved by varying the design of the clip attached to one of the horizontal sides of the mask frame, thereby providing the clip with a thermal deflection characteristic different from that exhibited by the clips attached to each of the vertical sides of the frame.

REFERENCES:
patent: 3452234 (1969-06-01), Lindeman
patent: 3617787 (1971-11-01), Plukker
patent: 3671794 (1972-06-01), Nakamura et al.
patent: 3700948 (1972-10-01), Palac

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