公开(公告)号：US5252886A

公开(公告)日：1993-10-12

申请号：US865530

申请日：1992-04-09

申请人： Max L. P. Renardus ,  Theodorus P. P. Kandelaars ,  Samuel A. Carleton ,  Cornelis A. J. Jacobs

发明人： Max L. P. Renardus ,  Theodorus P. P. Kandelaars ,  Samuel A. Carleton ,  Cornelis A. J. Jacobs

IPC分类号： H01J61/30 ,  H01J61/34 ,  H01J61/52 ,  H01J61/82 ,  H01J5/02

CPC分类号： H01J61/33 ,  H01J61/34 ,  H01J61/52 ,  H01J61/82

摘要： The high pressure discharge lamp has an elongate discharge vessel of ceramic material. The outside surface area of the wall of the discharge vessel is strongly increased by a relief. Since a higher heat flow from the discharge vessel to the environment is possible, the lamp can withstand a higher load. In this way, lamp properties such as luminous flux, color rendering index and/or color temperature can be improved.