Sapphire high intensity discharge projector lamp

申请公布号：US2003034736(A1)

申请号：US20010969903

申请日期：2001.10.02

申请公布日期：2003.02.20

申请人：

EASTLUND BENARD J.;LEVIS MAURICE E.

发明人：EASTLUND BENARD J.;LEVIS MAURICE E.

分类号：H01J61/30;H01J61/36;H01J61/86;(IPC1-7):H01J17/16

主分类号：H01J61/30

摘要：A high intensity discharge lamp, especially for optical projection systems, in one embodiment uses an anode electrode, a cathode electrode and a cylindrical envelope of single crystal (SC) sapphire. The fill may contain hydrogen, chlorine, sodium, scandium, sulfur and selenium and is under pressure exceeding 20 atmospheres. The lamp produces a continuous non-flash arc and generates a correlated color temperature between 6500 and 7000 degrees Kelvin and an efficacy exceeding 60 lumens/watt.

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