| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high-pressure discharge lamp that becomes bright in a much shorter time after being turned on than conventional high-pressure discharge lamps, and is low in lighting voltage by starting a glow discharge with a lower voltage. <P>SOLUTION: In the high-pressure discharge lamp, a part which comes into contact with a discharge medium encapsulated in a light emitting tube is made at least partially of a mayenite type compound. <P>COPYRIGHT: (C)2012,JPO&INPIT |
