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公开(公告)号：DE60319452D1
公开(公告)日：2008-04-17
申请号：DE60319452
申请日：2003-01-07
Applicant: USHIO ELECTRIC INC
Inventor： OKAMOTO MASASHI , YAMASHITA TAKASHI
Abstract: To eliminate the disadvantages in a discharge lamp (Ld) having an auxiliary light source (Lx) used to produce light with a short wavelength, to promote ionization of the discharge medium and to reduce the absolute value of the high voltage which is to be applied during starting, the discharge lamp (Ld) of the invention includes a main discharge vessel (Bd) which is filled with a discharge medium for the main discharge via a pair of opposed main discharge electrodes (E1,E2), and has a first electrode sealing part (S1) and a second electrode sealing part (S2) for connecting the pair of main discharge electrodes (E1,E2). The advantage of the invention is in a starting electrode (Et) arranged such that it does not come into contact with the main discharge space (Zd), and an auxiliary light source (Lx) which includes an auxiliary discharge vessel (Bx) located adjacent on the side of one of the electrode sealing parts (S1) and which is not made integral with the electrode sealing parts (S1,S2). The auxiliary light source (Lx) is filled with a discharge medium, and has a first outer electrode (Ev) on the outside of the auxiliary discharge vessel (Bx).
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公开(公告)号：NL2007588C
公开(公告)日：2012-10-16
申请号：NL2007588
申请日：2011-10-13
Applicant: USHIO ELECTRIC INC
Inventor： KITATOCHI NAOKI , UKAI TOSHIYA , OKAMOTO TOSHIYUKI , YAMASHITA TAKASHI
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公开(公告)号：NL2007588A
公开(公告)日：2012-05-30
申请号：NL2007588
申请日：2011-10-13
Applicant: USHIO ELECTRIC INC
Inventor： KITATOCHI NAOKI , UKAI TOSHIYA , OKAMOTO TOSHIYUKI , YAMASHITA TAKASHI
Abstract: A discharge lamp device comprising a high pressure discharge lamp having a discharge space and a pair of main electrodes in an interior of said discharge space, a starting assistance light source adapted to radiate UV radiation towards said discharge space, and a power supply device to light the high pressure discharge lamp and the starting assistance light source, wherein said starting assistance light source contains at least a rare gas for starting and carbon monoxide (CO) as a light emitting substance, and said power supply device is adapted to generate a high starting voltage at a time lighting of said high pressure discharge lamp is started and afterwards switch to a voltage for steady-state lighting, such that said starting assistance light source radiates by means of said high starting voltage but does not radiate by means of said voltage for steady-state lighting.
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公开(公告)号：DE60223313T2
公开(公告)日：2008-11-27
申请号：DE60223313
申请日：2002-05-09
Applicant: USHIO ELECTRIC INC
Inventor： OKAMOTO MASASHI , YAMASHITA TAKASHI
IPC: H05B41/24 , H05B41/288 , H05B41/16 , H05B41/18 , H05B41/38
Abstract: A light source device in which a discharge lamp, which contains greater than or equal to 0.15 mg mercury per cubic millimeter of the volume of the discharge space, and in which there is a pair of electrodes disposed opposite one another, is connected to a feed device (Ex). The feed device is used to start the discharge lamp and to supply the discharge current to the electrodes. The feed device (Ex) serves an identification function identifying a discharge state of the discharge lamp as a glow discharge state. Further, during the identification of the glow discharge state, the electric power supplied to the discharge lamp is set at less than or equal to twice as high as the nominal electric power of the above described discharge lamp to eliminate the formation of blackening on the inside of the bulb glass during glow discharge.
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公开(公告)号：DE60223313D1
公开(公告)日：2007-12-20
申请号：DE60223313
申请日：2002-05-09
Applicant: USHIO ELECTRIC INC
Inventor： OKAMOTO MASASHI , YAMASHITA TAKASHI
IPC: H05B41/24 , H05B41/288 , H05B41/16 , H05B41/18 , H05B41/38
Abstract: A light source device in which a discharge lamp, which contains greater than or equal to 0.15 mg mercury per cubic millimeter of the volume of the discharge space, and in which there is a pair of electrodes disposed opposite one another, is connected to a feed device (Ex). The feed device is used to start the discharge lamp and to supply the discharge current to the electrodes. The feed device (Ex) serves an identification function identifying a discharge state of the discharge lamp as a glow discharge state. Further, during the identification of the glow discharge state, the electric power supplied to the discharge lamp is set at less than or equal to twice as high as the nominal electric power of the above described discharge lamp to eliminate the formation of blackening on the inside of the bulb glass during glow discharge.
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Patent Agency Ranking
公开(公告)号：NL2007588C2
公开(公告)日：2012-10-16
申请号：NL2007588
申请日：2011-10-13
Applicant: USHIO ELECTRIC INC
Inventor： KITATOCHI NAOKI , UKAI TOSHIYA , OKAMOTO TOSHIYUKI , YAMASHITA TAKASHI
Abstract: A discharge lamp device comprising a high pressure discharge lamp having a discharge space and a pair of main electrodes in an interior of said discharge space, a starting assistance light source adapted to radiate UV radiation towards said discharge space, and a power supply device to light the high pressure discharge lamp and the starting assistance light source, wherein said starting assistance light source contains at least a rare gas for starting and carbon monoxide (CO) as a light emitting substance, and said power supply device is adapted to generate a high starting voltage at a time lighting of said high pressure discharge lamp is started and afterwards switch to a voltage for steady-state lighting, such that said starting assistance light source radiates by means of said high starting voltage but does not radiate by means of said voltage for steady-state lighting.
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公开(公告)号：DE60319452T2
公开(公告)日：2009-04-30
申请号：DE60319452
申请日：2003-01-07
Applicant: USHIO ELECTRIC INC
Inventor： OKAMOTO MASASHI , YAMASHITA TAKASHI
Abstract: To eliminate the disadvantages in a discharge lamp (Ld) having an auxiliary light source (Lx) used to produce light with a short wavelength, to promote ionization of the discharge medium and to reduce the absolute value of the high voltage which is to be applied during starting, the discharge lamp (Ld) of the invention includes a main discharge vessel (Bd) which is filled with a discharge medium for the main discharge via a pair of opposed main discharge electrodes (E1,E2), and has a first electrode sealing part (S1) and a second electrode sealing part (S2) for connecting the pair of main discharge electrodes (E1,E2). The advantage of the invention is in a starting electrode (Et) arranged such that it does not come into contact with the main discharge space (Zd), and an auxiliary light source (Lx) which includes an auxiliary discharge vessel (Bx) located adjacent on the side of one of the electrode sealing parts (S1) and which is not made integral with the electrode sealing parts (S1,S2). The auxiliary light source (Lx) is filled with a discharge medium, and has a first outer electrode (Ev) on the outside of the auxiliary discharge vessel (Bx).
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公开(公告)号：EP2654384A4
公开(公告)日：2017-07-05
申请号：EP11848505
申请日：2011-11-01
Applicant: USHIO ELECTRIC INC
Inventor： YAMADA KOJI , MATSUMOTO KEIICHI , YAMASHITA TAKASHI , SAMEJIMA TAKANORI
IPC: H05B41/288 , H05B41/292
CPC classification number: H05B41/36 , H05B41/2883 , H05B41/2887 , H05B41/2925 , Y02B20/208
Abstract: Provided is a discharge lamp lighting device, whereby it becomes possible to prevent or suppress the occurrence of flickering during the lighting of a discharge lamp by a second lighting mode in which a lower alternate current electric power than a rated electric power is fed when the switching from a first lighting mode in which an alternate current electric power that is the rated electric power is fed into the second lighting mode is carried out. A discharge lamp lighting device comprises a discharge lamp which has a pair of tungsten-made electrodes each having a protrusion formed at the tip thereof and an electric power feeding device which feeds an alternate current electric power to the discharge lamp, and is characterized in that the power feeding device has a function of switching between a first lighting mode in which a rated electric power is fed to the discharge lamp and a second lighting mode in which a lower electric power than the rated electric power is fed to the discharge lamp to light the discharge lamp and, therefore, can control an electric power to be fed to the discharge lamp under such conditions that the average electric power change rate becomes 0.01-2.1 W/s during a mode switching period in which the switching from the first lighting mode into the second lighting mode is carried out.
Abstract translation: 本发明提供一种放电灯点灯装置，能够防止或抑制在点灯时点灯时发生闪烁的情况，该第二点灯模式中，在切换时供给比交流额定功率低的交流电力 从执行作为额定电力的交流电力被馈送到第二发光模式的第一发光模式。 一种放电灯点灯装置，其特征在于，具备：放电灯，其具有在前端形成有突起的一对钨制电极和向放电灯供给交流电力的供电装置，其特征在于， 供电装置具有切换向放电灯供给额定电力的第一点灯模式和向放电灯供给比该额定电力低的电力的第二点灯模式的功能 因此能够在从第一点灯模式切换到第二点灯模式的模式切换期间中的平均电力变化率为0.01〜2.1W / s的条件下控制向放电灯供给的电力 进入第二照明模式。
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公开(公告)号：JP2003203605A
公开(公告)日：2003-07-18
申请号：JP2002002317
申请日：2002-01-09
Applicant: USHIO ELECTRIC INC
Inventor： OKAMOTO MASASHI , YAMASHITA TAKASHI
IPC: H01J61/54
Abstract: PROBLEM TO BE SOLVED: To provide a discharge lamp equipped with an auxiliary light source for promoting ionization of a discharge medium and lowering absolute value of high voltage impressed at start. SOLUTION: The discharge lamp (Ld) provided with a pair of electrodes (E1, E2) for the main discharge set in opposition inside a main discharge vessel (Bd) with a discharge medium for main discharging sealed in and a first and a second electrode-sealing parts (S1, S2) for passing electricity to the pair of electrodes for main discharge is so structure that a starting electrode (Et) is set apart from the electrodes for main discharging so as not to come in contact with a discharge zone (Zd) for main discharge, and an auxiliary light source (Lx) consisting of an auxiliary discharge vessel (Bx) with a discharge medium sealed in for auxiliary discharge is mounted in the vicinity of at least either side face of the electrode-sealing parts (S1, S2) and formed separately from the electrode-sealing parts (S1, S2), with a first outer electrode (Eu) set on the outside face of the auxiliary discharge vessel (Bx). COPYRIGHT: (C)2003,JPO
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公开(公告)号：JPH11176378A
公开(公告)日：1999-07-02
申请号：JP34630997
申请日：1997-12-16
Applicant: USHIO ELECTRIC INC
Inventor： HORIKAWA YOSHIHIRO , YAMASHITA TAKASHI , SUGITANI AKIHIKO
Abstract: PROBLEM TO BE SOLVED: To provide a high pressure discharge lamp, capable of restricting shell-shaped cracking at a metal foil sealing portion even when light-on and light-off are repeated. SOLUTION: A lamp 10 has a pair of electrodes 14, 15 arranged in a silica glass luminous tube 12, an electrode rod 18 welded to a metal foil 20 in a metal foil sealing portion 17 and mercury and rare gas filled therein. The filling amount M of mercury, the temperature T of the electrode rod 18 on the metal foil 20 in stable operation, the diameter ϕ of the electrode rod 18 and the thickness (t) of the metal foil sealing portion 17 are satisfied with conditions 1-3, more preferably with conditions 4, 5: the condition 1; 70 (mg/cc) /A)>=0.05 (mm /A) and the condition 5; L×ϕ (mm ) ), where the overlapping length of the electrode rod 18 is L.
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