Electron gun for cathode ray tube having third to fifth...

Details Electron gun for cathode ray tube having third to fifth... Electron gun for cathode ray tube having third to fifth...

2006-05-16

2006-05-16

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

Cathode ray tube

Plural beam generating or control

C313S414000, C313S441000

Reexamination Certificate

active

07045943

ABSTRACT:
An electron gun for a cathode ray tube is disclosed, which has a simple structure and can prevent the spot on a screen from being degraded. In the electron gun for a cathode ray tube including a cathode that emits electron beams, a first electrode that controls the electron beams emitted from the cathode, a second electrode that accelerates the electron beams emitted from the first electrode, and third to fifth electrodes sequentially arranged in a screen direction to act as pre-focus lenses, the electron gun is characterized in that the third to fifth electrodes have different sized electron beam through holes.

REFERENCES:
patent: 4169239 (1979-09-01), Ehata et al.
patent: 4426583 (1984-01-01), Chang et al.
patent: 4540916 (1985-09-01), Maruyama et al.
patent: 4866335 (1989-09-01), Cho
patent: 5015911 (1991-05-01), Cho
patent: 5039906 (1991-08-01), Park
patent: 5281892 (1994-01-01), Kweon et al.
patent: 5386178 (1995-01-01), Son et al.
patent: 5606216 (1997-02-01), Uchida et al.
patent: 5710481 (1998-01-01), Park et al.
patent: 5994827 (1999-11-01), Kim et al.
patent: 6570349 (2003-05-01), Kimiya et al.
patent: 111809 (1995-11-01), None
patent: 1111811 (1995-11-01), None
patent: 2115605 (1983-09-01), None
patent: 7-14521 (1995-01-01), None
patent: 2001155657 (2001-06-01), None

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