Invention Grant
- Patent Title: Electrode for a discharge lamp and corresponding production method
- Patent Title (中): 放电灯电极及相应的生产方法
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Application No.: US13062675Application Date: 2008-09-05
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Publication No.: US08502439B2Publication Date: 2013-08-06
- Inventor: Markus Stange
- Applicant: Markus Stange
- Applicant Address: DE Munich
- Assignee: OSRAM Gesellschaft mit beschrankter Haftung
- Current Assignee: OSRAM Gesellschaft mit beschrankter Haftung
- Current Assignee Address: DE Munich
- Agency: Cozen O'Connor
- International Application: PCT/EP2008/061728 WO 20080905
- International Announcement: WO2010/025769 WO 20100311
- Main IPC: H01J1/00
- IPC: H01J1/00 ; H01J9/02
Abstract:
An electrode for a discharge lamp, wherein the electrode comprises a pin and a mass arranged on an end of the pin by melting over an electrode coil. The pin consists of tungsten with microstructure-stabilizing additives, wherein the concentration of the microstructure-stabilizing additives is greater than or equal to 30 ppm. The electrode coil consists of pure tungsten, which has additives at most up to a concentration of 20 ppm.
Public/Granted literature
- US20110163655A1 Electrode for a Discharge Lamp and Corresponding Production Method Public/Granted day:2011-07-07
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