Electron beam apparatus and image display apparatus using...

Details Electron beam apparatus and image display apparatus using... Electron beam apparatus and image display apparatus using...

2009-04-10

2010-12-28

Patel, Vip (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C313S309000

Reexamination Certificate

active

07859184

ABSTRACT:
There is provided a new electron beam apparatus which improves the instability of an electron emission characteristic and provides a high efficient electron emission characteristic. The electron beam apparatus includes: an insulating member having a recess on its surface; a cathode having a protruding portion extending over the outer surface of the insulating member and the inner surface of the recess; a gate positioned at the outer surface of the insulating member in opposition to the protruding portion; and an anode positioned in opposition to the protruding portion through the gate.

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