High intensity vapor discharge lamp with sintering aids for electrode emission materials
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United States of America Patent
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Oct 23, 1984
Grant Date -
N/A
app pub date -
Sep 2, 1982
filing date -
Sep 2, 1982
priority date (Note) -
Expired
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Abstract
Sintering aids are disclosed which improve the sintering of emission materials in high pressure discharge lamps. The sintering aid is Nb.sub.2 O.sub.5 or Ta.sub.2 O.sub.5 or a mixture thereof along with an alkaline earth oxide with is mixed in the amount of 2 to 15 weight percent sintering aid with 98 to 85 weight percent electron emissive material.
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