Short-arc discharge lamp,申请号EP20000108395-传众专利搜索

Short-arc discharge lamp

申请公布号：EP1047111(A3)

申请号：EP20000108395

申请日期：2000.04.17

申请公布日期：2004.07.28

申请人：

USHIODENKI KABUSHIKI KAISHA

发明人：HIGASHIMOTO, YOUICHIROU;YAMANE, TAKUMI

分类号：G03F7/20;H01J61/36;H01J61/86

主分类号：G03F7/20

摘要：To reliably prevent the appearance of cracks in the sealing tube, and thus to provide a short-arc discharge lamp with a long service life, a short-arc discharge lamp having a bulb (10) with a light-emitting tube (11) and sealing tubes (12) connected to both sides of the light-emitting tube (11), with an anode (14) and a cathode (13) positioned facing each other within the light-emitting tube (11) on the ends of electrode rods (15) that pass through sleeve material (16) that is supported by the sealing tubes (12), in which short-arc discharge lamp molybdenum foil (18) is located between the sleeve material (16) and the sealing tube (12), the outer surface of the molybdenum foil which faces the sealing tube has a surface treatment (20) with a high-melting-point, oxidation resistant metal. The high-melting-point metal is preferably chosen from among tungsten, rhenium, tantalum, rhodium and platinum. <IMAGE>