Materials and methods for application of conducting members on arc tubes
First Claim
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1. An arc discharge lamp comprising an arc tube including a starting aid, said starting aid comprising a coating on the surface of the arc tube, said coating comprised of metal oxide, nitride, carbide, silicide, and mixtures thereof.
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Abstract
An arc discharge lamp comprising an arc tube comprising a starting aid is provided. The starting aid comprises a coating on the surface of the arc tube. The coating is comprised of metal oxide, nitride, carbide, silicide, and mixtures thereof.
34 Citations
20 Claims
- 1. An arc discharge lamp comprising an arc tube including a starting aid, said starting aid comprising a coating on the surface of the arc tube, said coating comprised of metal oxide, nitride, carbide, silicide, and mixtures thereof.
- 13. A method for forming an arc discharge lamp comprising applying an external starting aid to the surface of an arc tube, said starting aid comprising a coating of metal oxide, nitride, carbide, silicide, and mixtures thereof.
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20. A high pressure sodium lamp comprising an outer bulb;
- first and second discharge devices within said outer bulb connected electrically in series, each discharge device including a discharge vessel enclosing a discharge space and an ionizable filling;
first and second discharge electrode assemblies within said discharge space each including an electrode portion on which a discharge arc terminates during normal lamp operation and a current conductor portion extending to the exterior of said discharge vessel;
means for electrically connecting said first electrode assembly of each discharge device to a source of electric potential outside of said lamp envelope; and
a starting aid comprising a coating on the surface of the arc tube, said coating comprised of metal oxide, nitride, carbide, silicide, and mixtures thereof.
- first and second discharge devices within said outer bulb connected electrically in series, each discharge device including a discharge vessel enclosing a discharge space and an ionizable filling;
Specification