Discharge lamp and discharge electrode having an...

Details Discharge lamp and discharge electrode having an... Discharge lamp and discharge electrode having an...

2005-05-31

2009-10-20

Ton, Toan (Department: 2889)

Electric lamp and discharge devices

Discharge devices having an electrode of particular material

C313S633000

Reexamination Certificate

active

07605527

ABSTRACT:
A discharge lamp encompassing a sealed-off tube filled with a discharge gas and a discharge electrode provided in the sealed-off tube. The discharge electrode embraces a supporting base and an electron-emitting layer formed of a wide bandgap semiconductor and provided on the supporting base, implemented by a plurality of protrusions, at least part of surfaces of the protrusions are unseen from a perpendicular direction to thereof above a top surface of the electron-emitting layer, dangling bonds of the wide bandgap semiconductor at the surfaces are terminated with hydrogen atoms.

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