公开(公告)号：US07478928B2

公开(公告)日：2009-01-20

申请号：US11560408

申请日：2006-11-16

申请人： Shinichi Ushijima ,  Atsuji Nakagawa ,  Toshitaka Fujii

发明人： Shinichi Ushijima ,  Atsuji Nakagawa ,  Toshitaka Fujii

IPC分类号： F21V7/00

CPC分类号： F21V25/12

摘要： To prevent scattering of broken pieces of a reflecting mirror even if a high pressure discharge lamp with a reflector bursts. A light source device according to the present invention is a light source device 10 that has an arc tube 1 and a reflector 2, and a cover glass 4 is externally fitted and fixed to the rear of the reflector 2 at opposite ends thereof with a gap S therebetween. With such a configuration, even if the arc tube bursts to cause a crack in the reflector, the cover glass prevents scattering of the broken pieces of the reflector.

摘要翻译： 即使具有反射镜的高压放电灯爆裂，也可防止反射镜的碎片散射。 根据本发明的光源装置是具有电弧管1和反射镜2的光源装置10，并且在反射镜2的相反端部外侧装配并固定有盖玻璃4，其间隔开间隙 S之间。 通过这样的构成，即使电弧管突然反射而产生裂纹，盖玻片也能防止反射体的破碎片的散射。

公开(公告)号：US20080180953A1

公开(公告)日：2008-07-31

申请号：US11734290

申请日：2007-04-12

申请人： Shiro Isobe ,  Tomotaka Mori ,  Toshitaka Fujii ,  Atsuji Nakagawa

发明人： Shiro Isobe ,  Tomotaka Mori ,  Toshitaka Fujii ,  Atsuji Nakagawa

IPC分类号： H05B37/02 ,  F21V9/00 ,  H05B41/36

CPC分类号： H05B41/3928 ,  H04N9/3114 ,  H04N9/3155 ,  H05B41/3927

摘要： A power supply unit capable of varying power supplied to a light source at timings determined by synchronization signals is provided. The power supply unit comprises an interface that receives a plurality of types of synchronization signals with different pulse widths and a control unit that changes a setting of output power supplied by the power supply unit in accordance with the pulse widths of the plurality of types of synchronization signals. The control unit includes obtaining a standard time interval from a cycle of a standard type of synchronization signal that has a longest pulse width, parsing for determining type of each synchronization signal, redefining supply power values corresponding to respective types of synchronization signals, and changing the setting of output power of the power supply unit to a supply power value corresponding to a type of the synchronization signal.

摘要翻译： 提供一种能够在由同步信号确定的定时改变供给光源的功率的电源单元。 电源单元包括接收具有不同脉冲宽度的多种类型的同步信号的接口和控制单元，其根据多种类型的同步的脉冲宽度改变由电源单元提供的输出功率的设置 信号。 控制单元包括从具有最长脉冲宽度的标准类型的同步信号的周期获得标准时间间隔，用于确定每个同步信号的类型的解析，重新定义对应于各种类型的同步信号的电源功率值，以及改变 将电源单元的输出功率设置为与同步信号的类型相对应的电源功率值。

公开(公告)号：US06914393B2

公开(公告)日：2005-07-05

申请号：US10636872

申请日：2003-08-07

申请人： Atsuji Nakagawa ,  Toshitaka Fujii

发明人： Atsuji Nakagawa ,  Toshitaka Fujii

IPC分类号： H05B41/24 ,  H05B41/282 ,  H05B41/292 ,  H05B41/16 ,  G05F1/00

CPC分类号： H05B41/2928 ,  Y02B20/208

摘要： Improved method and device for lighting a high pressure discharge lamp are provided which prevent arc jump and inhibit deterioration of lamp voltage and luminance. The method includes the step of: alternately repeating a superposition operation for superposing a pulse current on a lamp current applied to the high pressure discharge lamp for a predetermined time period and a superposition stopping operation for stopping the superposition of the pulse current for a predetermined time period.

摘要翻译： 提供改进的用于点亮高压放电灯的方法和装置，其防止电弧跳跃并且抑制灯电压和亮度的劣化。 该方法包括以下步骤：交替地重复叠加操作，用于将施加到高压放电灯的灯电流的脉冲电流叠加预定时间段，以及用于停止脉冲电流叠加预定时间的叠加停止操作 期。

公开(公告)号：US06285130B1

公开(公告)日：2001-09-04

申请号：US09133957

申请日：1998-08-14

申请人： Atsuji Nakagawa ,  Toshitaka Fujii ,  Tetsuya Shirai ,  Tatsuo Yamamoto ,  Tomihiko Ikeda

发明人： Atsuji Nakagawa ,  Toshitaka Fujii ,  Tetsuya Shirai ,  Tatsuo Yamamoto ,  Tomihiko Ikeda

IPC分类号： H01J6118

CPC分类号： H01J61/125 ,  H01J61/827 ,  H01J61/86

摘要： A metal halide lamp includes a pair of electrodes with a spacing of 0.5 to 1.5 mm therebetween, an envelope enclosing the pair of electrodes, and at least one metal halide, other than a mercury halide, that is encapsulated in the envelope in an amount of from 0.04 to 0.3 mg/cc, wherein the metal halide lamp operates in a power range from 75 to 270 watts per millimeter across the spacing between the pair of electrodes.

摘要翻译： 一种金属卤化物灯包括间隔为0.5至1.5mm的一对电极，封闭该对电极的封套和至少一种不同于卤化汞的金属卤化物，其被包封在封套中的量为 从0.04至0.3mg / cc，其中金属卤化物灯在功率范围内在每对电极之间的间隔为75至270瓦/毫米的功率范围内。

公开(公告)号：US07504780B2

公开(公告)日：2009-03-17

申请号：US11734290

申请日：2007-04-12

申请人： Shiro Isobe ,  Tomotaka Mori ,  Toshitaka Fujii ,  Atsuji Nakagawa

发明人： Shiro Isobe ,  Tomotaka Mori ,  Toshitaka Fujii ,  Atsuji Nakagawa

IPC分类号： H05B37/02

CPC分类号： H05B41/3928 ,  H04N9/3114 ,  H04N9/3155 ,  H05B41/3927

摘要： A power supply unit capable of varying power supplied to a light source at timings determined by synchronization signals is provided. The power supply unit comprises an interface that receives a plurality of types of synchronization signals with different pulse widths and a control unit that changes a setting of output power supplied by the power supply unit in accordance with the pulse widths of the plurality of types of synchronization signals. The control unit includes obtaining a standard time interval from a cycle of a standard type of synchronization signal that has a longest pulse width, parsing for determining type of each synchronization signal, redefining supply power values corresponding to respective types of synchronization signals, and changing the setting of output power of the power supply unit to a supply power value corresponding to a type of the synchronization signal.

摘要翻译： 提供一种能够在由同步信号确定的定时改变供给光源的功率的电源单元。 电源单元包括接收具有不同脉冲宽度的多种类型的同步信号的接口和控制单元，其根据多种类型的同步的脉冲宽度改变由电源单元提供的输出功率的设置 信号。 控制单元包括从具有最长脉冲宽度的标准类型的同步信号的周期获得标准时间间隔，用于确定每个同步信号的类型的解析，重新定义对应于各种类型的同步信号的电源功率值，以及改变 将电源单元的输出功率设置为与同步信号的类型相对应的电源功率值。

公开(公告)号：US20070076175A1

公开(公告)日：2007-04-05

申请号：US10575808

申请日：2004-07-15

申请人： Atsuji Nakagawa ,  Toshitaka Fujii

发明人： Atsuji Nakagawa ,  Toshitaka Fujii

IPC分类号： G03B21/20

CPC分类号： H05B41/2881 ,  G03B21/2026 ,  G03B21/2053 ,  G09G3/3413 ,  G09G2310/0235 ,  G09G2320/0633 ,  H04N9/3114 ,  H04N9/3155

摘要： An object of the invention is to provide method of operating a projection-type system, which method is capable of suppressing flicker and minimizing gradation disorder at the same time by superimposing a pulse current on a d.c. lamp current to stabilize arc while synchronizing the superimposition of the pulse current on the d.c. lamp current with a predetermined segment. The method of operating a projection-type system configured to pass light emitted from a high-pressure discharge lamp lit by d.c. lighting through divided plural color segments sequentially to project an image onto a screen, includes superimposing a pulse current on a d.c. lamp current in the high-pressure discharge lamp in synchronism with at least one specific color segment.

摘要翻译： 本发明的目的是提供一种投影型系统的操作方法，该方法能够通过在脉冲电流上叠加脉冲电流来同时抑制闪烁并最小化灰度混乱。 灯电流稳定电弧，同时使脉冲电流叠加在直流电上。 灯电流与预定段。 操作投影型系统的方法，该系统被配置为通过由直流点亮的高压放电灯发出的光。 顺序地通过划分的多个颜色段点亮以将图像投影到屏幕上，包括将脉冲电流叠加在直流电路上。 高压放电灯中的灯电流与至少一个特定颜色段同步。

公开(公告)号：US07348737B2

公开(公告)日：2008-03-25

申请号：US11457837

申请日：2006-07-17

申请人： Toshitaka Fujii ,  Atsuji Nakagawa

发明人： Toshitaka Fujii ,  Atsuji Nakagawa

IPC分类号： G05F1/00

CPC分类号： H05B41/2923 ,  Y10S315/05 ,  Y10S315/07

摘要： To provide a lighting circuit of a projector that can be driven by both the commercial alternating-current power supply and a battery and is convenient for portable use. A lighting circuit for a high-pressure discharge lamp 14 includes: a DC/DC converter 1 that boosts a direct-current voltage and outputs the boosted direct-current voltage; an AC/DC converter 10 that rectifies an alternating-current voltage to output a direct-current voltage; an input switch circuit 2 and a power switch circuit 3 that switch between the DC/DC converter 1 and the AC/DC converter 10; a ballast circuit 11 that stabilizes the lighting of the high-pressure discharge lamp 14; a power control section 12 that controls the power supply from the ballast circuit 11 to the high-pressure discharge lamp 14; a lighting initiation circuit 13 that starts lighting of the high-pressure discharge lamp 14; and the high-pressure discharge lamp 14, and the power switch circuit 3 performs power switching in such a manner that a relatively low power is supplied to the high-pressure discharge lamp 14 when a direct-current power supply is connected only to the DC/DC converter, and a relatively high power is supplied to the high-pressure discharge lamp 14 when the commercial alternating-current power supply is connected to the AC/DC converter 10.

摘要翻译： 提供可由商用交流电源和电池驱动的投影仪的照明电路，并且便于便携式使用。 用于高压放电灯14的点亮电路包括：DC / DC转换器1，其升压直流电压并输出升压的直流电压; AC / DC转换器10，其对交流电压进行整流以输出直流电压; 在DC / DC转换器1和AC / DC转换器10之间切换的输入开关电路2和电源开关电路3; 稳定高压放电灯14的点亮的镇流器电路11; 控制从镇流器电路11到高压放电灯14的电源的电力控制部12; 启动高压放电灯14点亮的点亮启动电路13; 并且高压放电灯14和电源开关电路3进行电力切换，使得当直流电源仅连接到DC时，向高压放电灯14提供相对低的功率 / DC转换器，并且当商用交流电源连接到AC / DC转换器10时，向高压放电灯14提供相对较高的功率。

公开(公告)号：US07306340B2

公开(公告)日：2007-12-11

申请号：US11116035

申请日：2005-04-27

申请人： Atsuji Nakagawa ,  Toshitaka Fujii

发明人： Atsuji Nakagawa ,  Toshitaka Fujii

IPC分类号： G03B21/14 ,  H04N9/31

CPC分类号： G03B21/2026 ,  G03B21/2053 ,  H04N9/3114

摘要： This invention provides a method of operating a projection system wherein light emitted from a high-pressure discharge lamp being lit with d.c. lamp current is passed through color segments of a color filter sequentially and then reflected by an optical element to project an image on a screen, the color segments of the color filter including red, green and blue color segments and a color segment comprising a green ND filter having a relatively low lightness. The method includes making lower a crest value of the d.c. lamp current fed to the high-pressure discharge lamp for a first illumination period during which the color segment comprising the green ND filter is illuminated than a crest value of the d.c. lamp current fed to the high-pressure discharge lamp for a second illumination period during which any one of the other color segments is illuminated, in synchronism with the first illumination period.

摘要翻译： 本发明提供了一种操作投影系统的方法，其中从高压放电灯发出的光以直流点亮。 灯电流顺序通过彩色滤光片的颜色段，然后被光学元件反射，以将图像投影到屏幕上，滤色片的色段包括红色，绿色和蓝色色段，以及包括绿色ND 滤光片具有较低的亮度。 该方法包括降低直流电压的峰值。 在第一照明期间，将包含绿色ND滤色器的色彩段照亮的高压放电灯的灯电流高于直流电压的峰值。 在与第一照明周期同步的情况下，将其中任何一个其他颜色段照亮的第二照明周期馈送到高压放电灯的灯电流。

公开(公告)号：US20070242456A1

公开(公告)日：2007-10-18

申请号：US11560408

申请日：2006-11-16

申请人： Shinichi Ushijima ,  Atsuji Nakagawa ,  Toshitaka Fujii

发明人： Shinichi Ushijima ,  Atsuji Nakagawa ,  Toshitaka Fujii

IPC分类号： H05B31/00

CPC分类号： F21V25/12

摘要： To prevent scattering of broken pieces of a reflecting mirror even if a high pressure discharge lamp with a reflector bursts. A light source device according to the present invention is a light source device 10 that has an arc tube 1 and a reflector 2, and a cover glass 4 is externally fitted and fixed to the rear of the reflector 2 at opposite ends thereof with a gap S therebetween. With such a configuration, even if the arc tube bursts to cause a crack in the reflector, the cover glass prevents scattering of the broken pieces of the reflector.

摘要翻译： 即使具有反射镜的高压放电灯爆裂，也可防止反射镜的碎片散射。 根据本发明的光源装置是具有电弧管1和反射镜2的光源装置10，并且在反射镜2的相反端部外侧装配并固定有盖玻璃4，其间隔开间隙 S之间。 通过这样的构成，即使电弧管突然反射而产生裂纹，盖玻片也能防止反射体的破碎片的散射。

公开(公告)号：US08040077B2

公开(公告)日：2011-10-18

申请号：US12382593

申请日：2009-03-19

申请人： Toshitaka Fujii ,  Atsuji Nakagawa

发明人： Toshitaka Fujii ,  Atsuji Nakagawa

IPC分类号： G05F1/00

CPC分类号： H05B41/042

摘要： A starting circuit of a starting device for a high-pressure discharge lamp including an auxiliary light source has a diode placed in a forward direction in one of a pair of output lines which connect a main lighting circuit for generating AC voltage to the high-pressure discharge lamp and the auxiliary light source; a capacitor having one end connected to a cathode side of the diode; a boosting transformer including a primary winding, and a secondary winding having one end connected to an anode side of the diode or to the other output line and also having the other end connected to the other end of the capacitor; a high-frequency voltage generation circuit for continuously generating high-frequency voltage in combination with the primary winding; and a short-circuit switch for maintaining a short-circuit condition at both ends of the diode after the high-pressure discharge lamp is started.

摘要翻译： 用于包括辅助光源的高压放电灯的启动装置的启动电路具有在一对输出线中的一个输出线中的正向放置的二极管，其将用于产生AC电压的主照明电路连接到高压 放电灯和辅助光源; 电容器，其一端连接到二极管的阴极侧; 升压变压器，其包括初级绕组，以及次级绕组，其一端连接到二极管的阳极侧或另一输出线，并且另一端连接到电容器的另一端; 用于连续地与初级绕组一起产生高频电压的高频电压产生电路; 以及在高压放电灯起动之后用于保持二极管两端的短路状态的短路开关。