Interconnection feedthroughs for ceramic metal halide lamps,申请号US20080157993-传众专利搜索

Interconnection feedthroughs for ceramic metal halide lamps

申请公布号：US2009309497(A1)

申请号：US20080157993

申请日期：2008.06.16

申请公布日期：2009.12.17

申请人：

RESAT CORPORATION

发明人：MAYA JAKOB

分类号：H01J61/30

主分类号：H01J61/30

摘要：An arc discharge metal halide lamp for providing visible light comprising an arc discharge vessel which has capillary tubes therein in at least one of which there is a first electrical feedthrough extending through an interior passageway to have an interior end of that electrode positioned in the discharge region opposite the other the interior passageway of the other capillary and an exterior end thereof positioned outside the outer end of that capillary tube but joined to a cermet portion inside that tube. In an intermediate stage of fabricating the lamp, a bonding material ring of limited diameter is provided at the end of the capillary tube about the exterior end. In a completed lamp, the first electrical feedthrough has limited extent joints where its components are joined and, alternatively or in addition, has a limited offset between its components at a joint between them.