Electron source including a perforated permanent magnet

Details Electron source including a perforated permanent magnet Electron source including a perforated permanent magnet

1996-08-09

1999-06-29

O'Shea, Sandra

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

313422, 313431, H01J 2964

Patent

active

059172770

ABSTRACT:
An electron source having a cathode and a permanent magnet having perforated channels extending between opposite poles of the magnet. Each channel forms electrons received from the cathode into an electron beam for guidance towards a target. The electron source has applications in a wide range of technologies, including display technology and printer technology.

REFERENCES:
patent: 3050653 (1962-08-01), Salinger
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patent: 4663559 (1987-05-01), Christensen
patent: 4672272 (1987-06-01), Littwin
patent: 4763041 (1988-08-01), Segawa
patent: 4835438 (1989-05-01), Baptist et al.
patent: 4955681 (1990-09-01), Sekihara et al
patent: 5227691 (1993-07-01), Murai et al.
patent: 5270617 (1993-12-01), Nonomura et al.
patent: 5473222 (1995-12-01), Thoeny et al.

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