Color cathode ray tube capable of reducing stress

Details Color cathode ray tube capable of reducing stress Color cathode ray tube capable of reducing stress

2006-12-26

2006-12-26

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

C313S447000, C220S00210A, C220S00230A

Reexamination Certificate

active

07154215

ABSTRACT:
A color cathode ray tube has features to decrease mechanical stress due to internal pressure made by evacuation. The cathode ray tube includes a panel on an inner surface of which a phosphor screen is formed. A funnel is joined to the panel. An electron gun generates electron beams, and a deflection yoke is mounted within the funnel to deflect the electron beams. The panel satisfies a condition: L1+(L2−L1)×0.35≦L≦L1+(L2−L1)×0.45, and more preferably a condition: L1+(L2−L1)×0.35≦L<L1+(L2−L1)×0.45, wherein L1is a distance between an inner center P of said panel and a yoke line plane; L2is a distance between the inner center P of said panel and a neck line plane; and L is a distance between the inner center P of said panel and a reference line plane.

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patent: 2003/0030364 (2003-02-01), Ko
patent: 2005/0052114 (2005-03-01), Kim

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