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公开(公告)号：US10128100B2
公开(公告)日：2018-11-13
申请号：US15571922
申请日：2016-11-14
申请人： SHIKOH TECH LLC
摘要： During a normal operation, alternating drive voltage to be applied between a pair of electrodes provided to face an outer surface of a bottom part of a gas discharge light emitting tube is switched to a voltage value V2 lower than a voltage value V1 at the time of starting lighting. Further, the alternating drive voltage to be applied during the normal discharge operation is intermittently applied in a predetermined cycle and duty ratio to enable adjustment of light emission intensity.
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公开(公告)号：US09947526B2
公开(公告)日：2018-04-17
申请号：US15308802
申请日：2016-01-29
申请人： SHIKOH TECH LLC
发明人： Tsutae Shinoda , Hitoshi Hirakawa , Kenji Awamoto , Bingang Guo , Takefumi Hidaka , Junichiro Takahashi
IPC分类号： H01J1/62 , H01J65/00 , H01J11/18 , H01J63/08 , H01J61/06 , H01J61/30 , H01J61/42 , H05B41/24
摘要： A gas discharge device includes a thin glass tube filled with a discharge gas; a pair of first and second long electrodes extending toward either side along a longitudinal direction with a discharge gap interposed therebetween are provided outside of a back side flat surface of a thin glass tube; and a ultraviolet phosphor layer formed on an inner surface at the back side flat surface, the thin glass tube filled with a discharge gas having a front side flat surface and the back side flat surface facing each other on a transverse section, wherein, starting with trigger discharge that is initially generated in the discharge gap as a result of a voltage increase when a voltage with a sine waveform or an inclined waveform is applied between both electrodes, the discharge gradually extends so as to move in the longitudinal direction of the electrodes. Ultraviolet light having high luminous efficiency and emission intensity is obtained from a front side surface of the thin glass tube by driving the device with a sine-wave AC voltage.
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