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US 2012/0153806 A1Published application
Electrode for discharge lamp, method of manufacturing electrode for discharge lamp, and discharge lamp
AssigneeAsahi Glass Company, Limited
InventorsKazuhiro Ito, Satoru Watanabe, Naomichi Miyakawa, Yutaka Kuroiwa, Setsuro Ito
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Abstract
An electrode for a discharge lamp is provided with a mayenite compound in at least a part of the electrode that emits secondary electrons, and a surface of a surface layer of the mayenite compound is plasma treated.
Claims13
An electrode for a discharge lamp, comprising:
- a mayenite compound in at least a part of the electrode emitting secondary electrons,
- wherein a surface of a surface layer of the mayenite compound is plasma treated.
A method of manufacturing an electrode for a discharge lamp, comprising:
- forming a part of the electrode or the electrode in its entirety by a mayenite compound, and thereafter plasma treating a surface of a surface layer of the mayenite compound of the electrode.
A discharge lamp comprising:
- an fluorescent tube;
- a discharge gas sealed inside the fluorescent tube;
- and
- a mayenite compound in contact with the discharge gas and arranged in at least a part inside the fluorescent tube,
- wherein a surface of a surface layer of the mayenite compound is plasma treated.
2 more elements
Dependencies are inferred from the claim text.