Back to results
US 6,486,602 B1Granted
High-pressure discharge lamp electrode having a dendritic surface layer thereon
AssigneePatent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
InventorCarsten Setzer
Life of this patent
Estimating the term…
Abstract
In the case of an electrode (5) for a high-pressure discharge lamp, at least a part of the surface of the electrode is covered with a dendritic layer (13) made from high-melting-point metal. A substantially longer service life is achieved thereby.
Claims9
Electrode for a high-pressure discharge lamp comprising:
- a core material, at least a part of the surface of said core material being covered with a dendritic layer made from high-melting-point metal and wherein the emission coefficient of said surface is greater than 0.6.
High-pressure discharge lamp with an electrode according to one of the preceding claims, said lamp having a fill containing mercury and/or inert gas.
Dependencies are inferred from the claim text.