| 摘要 |
RD-17,878 HIGH EFFICACY ELECTRADELESS HIGH INTENSITY DISCHARGE LAMP of the Invention Improved efficacy and color rendition are achieved in a high intensity discharge, solenoidal electric field (HID-SEF) lamp by using a novel combination of fill ingredients, including lanthanum halide, sodium halide, cerium halide, and xenon or krypton as a buffer gas. The preferred lamp structure is that of a short cylinder having rounded edges in order to achieve isothermal lamp operation and further efficacy improvement
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