Invention Grant
- Patent Title: High pressure discharge lamp
- Patent Title (中): 高压放电灯
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Application No.: US13638334Application Date: 2011-03-17
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Publication No.: US08492976B2Publication Date: 2013-07-23
- Inventor: Atsushi Takama , Tetsuji Hirao
- Applicant: Atsushi Takama , Tetsuji Hirao
- Applicant Address: JP Tokyo
- Assignee: Ushio Denki Kabushiki Kaisha
- Current Assignee: Ushio Denki Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Rader, Fishman & Grauer PLLC
- Priority: JP2010-077155 20100330
- International Application: PCT/JP2011/056387 WO 20110317
- International Announcement: WO2011/122359 WO 20111006
- Main IPC: H01J17/04
- IPC: H01J17/04

Abstract:
A high pressure discharge lamp includes a light emission section in which a pair of electrodes is arranged, sealing portions formed from both ends of the light emission section, external leads, and a trigger wire provided near the light emission section. The trigger wire includes a first coil portion, which is wound from a vicinity of a boundary between the light emission section and one of the sealing portions towards an outer end of the one of sealing portions, and a linear stretch-across portion, which extends from the first coil portion near the light emission section towards the external lead extending from an outer end of the other sealing portion and is fixed to the external lead. A second coil portion is formed around the other sealing portion. The wire, which forms the stretch-across portion, is held between the second coil portion and the other sealing portion.
Public/Granted literature
- US20130026912A1 HIGH PRESSURE DISCHARGE LAMP Public/Granted day:2013-01-31
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