Cathode ray tubes

Details Cathode ray tubes Cathode ray tubes

2007-08-14

2007-08-14

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Envelope

C313S479000

Reexamination Certificate

active

10542241

ABSTRACT:
Cathode-ray tube comprising a glass envelope composed of a substantially rectangular faceplate, of a flared rear part and of a substantially cylindrical neck, the flared part including an anode button for receiving the high voltage, the outer surface of the said flared part being partially covered by an electrically conducting layer, adhering to the said outer surface, the electrically conducting layer being a metallic layer composed mainly of aluminium. This layer makes it possible to improve the image distortions due to the drop in the high voltage during current spikes delivered by the high voltage.

REFERENCES:
patent: 3996491 (1976-12-01), Larson et al.
patent: 4564786 (1986-01-01), Baum et al.
patent: 5689157 (1997-11-01), Jitsukata et al.
patent: 6043599 (2000-03-01), Nakane
patent: 6515411 (2003-02-01), Bae
patent: 6800994 (2004-10-01), Bartch et al.
Search Report dated Dec. 17, 2004.

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