To prevent the occurrence of blackening of a high pressure mercury lamp having an extremely high lighting action pressure.
A lamp 500 with a reflecting mirror is provided with the high pressure discharge lamp 100 and a reflecting mirror 50. The reflecting mirror 50 has a first opening 51 and a second opening 52, is substantially occluded between a sealing part 2 of the lamp 100 and the second opening part 52, the sealing part 2 has a first glass part 8 extended from a light emitting tube 1 and a second glass part 7 installed at the inner side of the first glass part 8, and has a site to which a compressive stress is applied, and furthermore at a part of the reflecting mirror 50, a blast port 55 is formed which sends a wind (71) to hit the upper part 1a of an arc tube 1 and to be turned around to the lower part 1b in the case the sealing part 2 is arranged in the nearly horizontal direction.
| JP5625532 | projector |
TAKAHASHI KIYOSHI
HATAOKA SHINICHIRO
ICHIBAGASE TAKESHI
SEKI SATOYUKI
TSUTAYA YASUSHI
Hiroshi Koyama
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Atsushi Fujita
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
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