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    • 10. 发明授权
    • High pressure discharge lamp with start-up assist member, lamp unit, lamp system, and projector
    • 高压放电灯带启动辅助部件,灯具,灯具系统和投影机
    • US08690360B2
    • 2014-04-08
    • US13393786
    • 2011-07-06
    • Syunsuke OnoMasahiro YamamotoHiroki OgawaKazuyuki Okano
    • Syunsuke OnoMasahiro YamamotoHiroki OgawaKazuyuki Okano
    • G03B21/28
    • H01J61/547G03B21/2026H01J61/86
    • The present invention provides a high pressure discharge lamp with a start-up assist member, a lamp unit, and a lamp system that reduce breakdown voltage and provide high design flexibility by reducing restriction on a position of an adjacent conductor. In a high pressure discharge lamp (10) of a lamp unit (1), a dielectric member (20) is on the outer surface of a first sealing part (101a). The dielectric member (20) made of a titanium compound has relative permittivity higher than that of fused quartz. An upstream end of a metal wire (21) is connected to an external lead wire (102b) projecting from a second sealing part (101b). A downstream end (21A) is in contact with the dielectric member (20). Upon lighting of the lamp, a corona discharge occurs at the point where the end (21a) is in contact with the dielectric member (20) so that breakdown voltage is reduced.
    • 本发明提供一种具有启动辅助构件,灯单元和灯系统的高压放电灯,其通过减少对相邻导体的位置的限制来降低击穿电压并提供高设计灵活性。 在灯单元(1)的高压放电灯(10)中,电介质部件(20)位于第一密封部(101a)的外表面上。 由钛化合物构成的电介质构件(20)的相对介电常数高于熔融石英。 金属线(21)的上游端与从第二密封部(101b)突出的外部引线(102b)连接。 下游端(21A)与电介质构件(20)接触。 在点亮灯时,在端部(21a)与电介质构件(20)接触的点处发生电晕放电,使得击穿电压降低。