Back to results
US 7,408,295 B2Granted
Mercury amalgams for elevated temperatures in discharge lamps
AssigneePatent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
InventorsMartin Beck, Sylvia Frenzel, Roland Hoffmann
Life of this patent
Estimating the term…
Abstract
The present invention relates to mercury amalgams in discharge lamps for use at elevated operating temperatures.
Claims12
A mercury amalgam for discharge lamps having a mercury fraction and a master alloy,
- in which the master alloy corresponds to the general formula
- Ina-eXbYcZdRe
- where:
- X is at least one element selected from the group consisting of Ag, Cu, Sn,
- Y is at least one element selected from the group consisting of Pb, Zn,
- Z is at least one element selected from the group consisting of Ni, Te,
- R comprises additions of Bi, Sb, Ga and standard residues,
- and where the following apply for a, b, c, d, e:
- 70%≦a≦98%;
- b≦25%;
- c≦25%;
- d≦20%;
- e≦15%.
10 more elements
Dependencies are inferred from the claim text.