Invention Grant
- Patent Title: Ceramic HID arc tube assembly
- Patent Title (中): 陶瓷HID电弧管总成
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Application No.: US11986591Application Date: 2007-11-23
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Publication No.: US07701142B2Publication Date: 2010-04-20
- Inventor: John A. Scholz , Kevin Provagna
- Applicant: John A. Scholz , Kevin Provagna
- Applicant Address: US MA Danvers
- Assignee: OSRAM SYLVANIA Inc.
- Current Assignee: OSRAM SYLVANIA Inc.
- Current Assignee Address: US MA Danvers
- Agent Edward S. Podszus
- Main IPC: H01J17/16
- IPC: H01J17/16 ; H01J61/30
Abstract:
An arc tube assembly (10) for a protected high intensity discharge lamp. The assembly has a ceramic arc tube (12) with a short shroud (20) surrounding at least the arc chamber (14) of the arc tube. The short shroud (20) allows the frit seal areas (46) of the arc tube capillaries (18) to project beyond the shroud (20) and thereby operate at a lower temperature, thus increasing lamp life.
Public/Granted literature
- US20090134760A1 Ceramic hid arc tube assembly Public/Granted day:2009-05-28
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