发明名称 |
High pressure mercury lamp with vented reflector and image projection apparatus |
摘要 |
A lamp with a reflector comprises a high pressure discharge lamp and a reflector. The reflector has a first opening and a second opening. Clearance between a sealing portion of the high pressure discharge lamp and the second opening is substantially filled. The sealing portion includes a first glass portion extending from a luminous bulb and a second glass portion provided in the inside of the first glass portion, and the sealing portion has a portion to which a compressive stress is applied. Moreover, when the sealing portion is disposed to extend in a substantially horizontal direction, a portion of the reflector is formed with an air inlet for introducing an air flow striking against an upper portion of the luminous bulb 1 and then coming into a lower portion of the luminous bulb 1.
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申请公布号 |
US7230382(B2) |
申请公布日期 |
2007.06.12 |
申请号 |
US20040828493 |
申请日期 |
2004.04.20 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
HORIUCHI MAKOTO;TAKAHASHI KIYOSHI;HATAOKA SHINICHIRO;ICHIBAKASE TSUYOSHI;SEKI TOMOYUKI;TSUTATANI TAKASHI |
分类号 |
H01J17/18;F21S6/00;F21V7/20;F21V29/00;F21V29/02;G02F1/13357;G03B21/00;H01J5/16;H01J5/48;H01J9/32;H01J61/00;H01J61/073;H01J61/12;H01J61/20;H01J61/30;H01J61/36;H01J61/52;H01J61/82;H01J61/86;H01K1/26;H01K1/30 |
主分类号 |
H01J17/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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