Color rendition high pressure sodium arc tubes having an...

Details Color rendition high pressure sodium arc tubes having an... Color rendition high pressure sodium arc tubes having an...

H - Electricity

01

J

313/10, 313/106

H01J 61/26 (2006.01) H01J 61/36 (2006.01) H01J 61/82 (2006.01)

Patent

CA 1214196

IMPROVED COLOR RENDITION HIGH PRESSURE SODIUM ARC TUBES HAVING AN OXYGEN GETTER ABSTRACT OF THE DISCLOSURE A high pressure sodium lamp having improved color rendition is disclosed. The improved color rendition high pressure sodium lamp has an inner arc tube having a pair of thermionic electrodes at least one of which has affixed a metallic oxygen getter. The oxygen getter maintains the desired color rendition over the life of the high pressure sodium lamp.

446261

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