Electron gun for cathode ray tube having SVM coil and...

Electric lamp and discharge devices – Cathode ray tube – Ray generating or control

Reexamination Certificate

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Reexamination Certificate

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07135814

ABSTRACT:
An electron gun for a cathode ray tube having a scanning velocity modulation coil mounted on an outer circumference of a neck of the cathode ray tube. The electron gun includes a cathode for emitting electron beams; a plurality of grid electrodes sequentially mounted starting from the cathode, and including a plurality of focus electrodes mounted with a predetermined gap therebetween; supports on which the grid electrodes are fixed in a row; and a shield electrode mounted between the focus electrodes and connected to the focus electrodes. The shield electrode defines a continuous space along an elongated axis direction of the cathode ray tube.

REFERENCES:
patent: 6617777 (2003-09-01), Taguchi et al.
patent: 6624559 (2003-09-01), Suzuki et al.
patent: 6952077 (2005-10-01), Park et al.
patent: 2002/0109452 (2002-08-01), Hwang et al.
patent: 55-146847 (1980-11-01), None
patent: 2000-188607 (2000-07-01), None
Patent Abstract of Japan, Publication No. 55-1468847, Published on Nov. 15, 1980, in the name of Yamauchi.
Patent Abstract of Japan, Publication No. 2000-188607, Published on Jul. 4, 2000, in the name of Harada.

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