公开(公告)号：EP0722617B1

公开(公告)日：1997-12-17

申请号：EP95929809.2

申请日：1995-08-07

申请人： Siemens Beleuchtungstechnik GmbH & Co. KG

发明人： TEKLAK, Janusz ,  SUSEMIHL, Ingo

IPC分类号： H01J65/04 ,  F21S1/00 ,  F21K7/00

CPC分类号： F21V7/0025 ,  F21V7/0008 ,  F21V7/005 ,  F21V14/02 ,  F21V14/04 ,  F21Y2103/00

摘要： A microwave lamp (5) has a microwave generator (50) for generating microwave radiation, a microwave resonator (51) made of a metal wire cage for focusing the microwave radiation and an enclosed burner (52) arranged within the microwave resonator (51) and filled with an inert gas such as argon and with an element that emits visible radiation when excited, for example sulphur. A reflector (4) that reflects visible radiation but transmits microwave radiation surrounds the burner (52) and extends outwards therefrom perpendicularly and transversely to the axis of symmetry (2) of the microwave lamp (5). This reflector (4) pre-collimates the optical radiation emitted by the burner in a perpendicular direction to the axis of symmetry (2). A microwave lamp (5) equipped with such a reflector and combined with a corresponding lighting device allows various light radiation characteristics to be obtained, in particular narrowly focused light radiation, with a reflector having advantageous geometric dimensions.