| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a translucent ceramic bulb which provides a measures for retaining the minimum brightness for security in light turning-off, and has large mechanical strength, to provide a high-pressure discharge lamp equipped with the same, and to provide an illumination fixture. <P>SOLUTION: The translucent ceramic bulb 1 is formed of translucent ceramics in which 5 to 50 mass% of a light-storing oxide phosphor is added to a ceramic base material, and the bulb 1 is equipped with at least an enveloping part 1a to envelop a discharge space 1c and a sealing part to perform air-tight sealing of the enveloping part. When the high-pressure discharge lamp is turned off, the translucent ceramic bulb 1 lights for a long time by afterglow, so the measures for retaining the minimum brightness for security is provided. <P>COPYRIGHT: (C)2011,JPO&INPIT |
