Invention Grant
US07898179B2 Discharge lamp exhibiting reduced thermal stress and method of making such a lamp
有权
放电灯具有降低的热应力和制造这种灯的方法
- Patent Title: Discharge lamp exhibiting reduced thermal stress and method of making such a lamp
- Patent Title (中): 放电灯具有降低的热应力和制造这种灯的方法
-
Application No.: US12082987Application Date: 2008-04-16
-
Publication No.: US07898179B2Publication Date: 2011-03-01
- Inventor: Matthew A. Bourgery , Paul H. Townsend , Chung-Yao Chao
- Applicant: Matthew A. Bourgery , Paul H. Townsend , Chung-Yao Chao
- 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:
A lamp (100) comprises an outer envelope (120) having first and second electrical lead-ins (140, 160) sealed into a base (180) of the envelope (120). A ceramic arc tube (200) is operatively mounted within the envelope (120), the arc tube (200) having at least one electrode (220) therein. A tubular, niobium feed-through (240) is connected to the at least one electrode (220) and sealed to the ceramic body (120) at a joint (260) that can comprise a glass frit (260a). A stainless steel rod (280) is electrically connected between the electrical lead-in (140) and the tubular niobium feed-through (240), the stainless steel rod (280) being the only electrical connection between the lead-in (140) and the niobium feed-through (240).
Public/Granted literature
- US20090261729A1 Discharge lamp exhibiting reduced thermal stress and method of making such a lamp Public/Granted day:2009-10-22
Information query
