Arc discharge lamp containing means for reducing mercury leaching
AssigneeOsram Sylvania Inc.
InventorsKeith A. Klinedinst, Dennis B. Shinn
Life of this patent
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Abstract
An arc discharge lamp containing a quantity of elemental mercury at least partially convertible to soluble mercury, provides for including within the lamp a quantity of a non-metallic copper-containing compound and an ingredient X, said ingredient X including a noble metal or a noble metal compound selected from the group consisting of silver and compounds of silver, gold and platinum, and a lamp containing same.
Claims9
In an arc discharge lamp containing a quantity of elemental mercury at least partially convertible to soluble mercury, the improvement comprising:
- including within said lamp a quantity of a non-metallic copper-containing compound and an ingredient X, said ingredient X including a noble metal or noble metal compound selected from the group consisting of silver and compounds of silver, gold and platinum.
In an arc discharge lamp containing a quantity of elemental mercury at least partially convertible to soluble mercury, the improvement comprising:
- including within said lamp a quantity of a non-metallic copper-containing compound and platinum chloride as PtCl2.
In an arc discharge lamp containing a quantity of elemental mercury at least partially convertible to soluble mercury and having a base held to said lamp by a basing cement, the improvement comprising:
- a quantity of a non-metallic copper-containing compound and an ingredient X included in said basing cement, said ingredient X including a noble metal or noble metal compound selected from the group consisting of silver and compounds of silver, gold and platinum.
Dependencies are inferred from the claim text.