Invention Grant
- Patent Title: High pressure discharge lamp
- Patent Title (中): 高压放电灯
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Application No.: US13201225Application Date: 2010-02-02
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Publication No.: US08390195B2Publication Date: 2013-03-05
- Inventor: Roland Huettinger , Stefan Juengst , Stefan Kotter , Steffen Walter
- Applicant: Roland Huettinger , Stefan Juengst , Stefan Kotter , Steffen Walter
- Applicant Address: DE Munich
- Assignee: Osram AG
- Current Assignee: Osram AG
- Current Assignee Address: DE Munich
- Priority: DE102009008636 20090212
- International Application: PCT/EP2010/051254 WO 20100202
- International Announcement: WO2010/091980 WO 20100819
- Main IPC: H01J17/16
- IPC: H01J17/16 ; H01J61/30

Abstract:
A high pressure discharge lamp may include a ceramic discharge vessel and a longitudinal axis, wherein at least one electrode is led out of the discharge vessel by means of a metal-containing feed-through, wherein the feed-through is connected to one end of the discharge vessel by way of a ceramic-containing adjustment part, wherein the adjustment part is tubular and consists of individual layers with different compositions, at least two materials A and B forming a plurality of layers of the adjustment part, these materials being chosen such that their coefficient of thermal expansion is between that of the feed-through and that of the end of the discharge vessel or at most is just outside, the layer thickness of each layer being so low that no shearing forces can occur, and the layer thickness of each layer of the same material being different.
Public/Granted literature
- US20110291557A1 HIGH PRESSURE DISCHARGE LAMP Public/Granted day:2011-12-01
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