Cathode-ray tube having an electron gun with an improved...

Details Cathode-ray tube having an electron gun with an improved... Cathode-ray tube having an electron gun with an improved...

2007-09-11

2007-09-11

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

C313S409000, C313S446000, C313S453000

Reexamination Certificate

active

10939172

ABSTRACT:
A cathode-ray tube has an electron gun with a main focusing lens, wherein each electrode comprises a rectangular aperture whose large dimension is along the horizontal axis (Ox) and terminating at its two ends in two identical semi-ellipses of order n that are symmetric with respect to the axis of the gun (Z).

REFERENCES:
patent: 5828191 (1998-10-01), Shirai et al.
patent: 6133684 (2000-10-01), Kawaharada
patent: 6452320 (2002-09-01), New
patent: 6559586 (2003-05-01), Alig et al.
patent: 6800992 (2004-10-01), Wada et al.
Search Report.

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