发明名称 |
HIGH-PRESSURE DISCHARGE LAMP, LAMP UNIT, AND IMAGE DISPLAY APPARATUS |
摘要 |
The present invention aims to provide a small-sized high-efficiency high pressure discharge lamp that exhibits favorable light intensity distribution properties and is less likely to cause breakage of an arc tube. The present invention is a high pressure discharge lamp 101 comprising: an arc tube 110 that includes; a light-emitting part 111 having a substantially spherical shape and having mercury enclosed therein; and a pair of sealing parts 112 extending from opposite sides of the light-emitting part 111; and a pair of electrodes 130 that are arranged in the arc tube 110 such that an end of each electrode is sealed by a respective sealing part and the other ends of the electrodes oppose each other in the light-emitting part. The enclosed mercury has a density of 0.2 to 0.4 [mg/mm3] inclusive. A distance W from a contact point S to a center O is 3.0 to 5.0 [mm] inclusive. A distance CO from a contact point TO to the center O is 1.5 to 3.0 [mm] inclusive. The distance CO and a distance CM satisfy a relation CM/CO≧0.8, and a minimum thickness X [mm] and a maximum outer diameter D [mm] satisfy a relation X/D≧0.2.
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申请公布号 |
US2011193466(A1) |
申请公布日期 |
2011.08.11 |
申请号 |
US20100997916 |
申请日期 |
2010.06.02 |
申请人 |
OHTA KAZUNORI;GAMADA KOUHEI;SUIZU MASAYUKI;TAMARU SHUJI |
发明人 |
OHTA KAZUNORI;GAMADA KOUHEI;SUIZU MASAYUKI;TAMARU SHUJI |
分类号 |
H01J5/16;F21S2/00;F21Y101/00;G03B21/14;G03B21/16;H01J17/18;H01J61/20;H01J61/30;H01J61/88 |
主分类号 |
H01J5/16 |
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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