公开(公告)号：US20070024204A1

公开(公告)日：2007-02-01

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： H05B39/04

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：US20100171421A1

公开(公告)日：2010-07-08

申请号：US12652799

申请日：2010-01-06

申请人： Atsuji NAKAGAWA ,  Toshitaka FUJII

发明人： Atsuji NAKAGAWA ,  Toshitaka FUJII

IPC分类号： H01J61/36

CPC分类号： H01J61/822 ,  H01J61/545

摘要： The high-pressure discharge lamp includes: an arc tube; sealing portions which respectively have preseal glasses embedded therein, and at least one of which has an inert gas enclosing space which is arranged so as to be in contact with an outer surface of a corresponding the one preseal glass; a pair of feeders including a pair of electrodes, external lead rods, and metal foils, respectively; an external conductor which is arranged on an outer surface of the one sealing portion so as to be corresponded to the inert gas enclosed space, and connected to the external lead rod from the other sealing portion; and an internal conductor which is arranged in the inert gas enclosing space in the one sealing portion, and which has an electric potential identical to that of one feeder corresponding to the one sealing portion around which the external conductor is arranged.

摘要翻译： 高压放电灯包括：电弧管; 密封部分分别具有嵌入其中的预制眼镜，并且其中至少一个具有惰性气体封闭空间，其布置成与相应的一个前视玻璃的外表面接触; 分别包括一对电极，外部引线棒和金属箔的一对馈线; 外部导体，其布置在所述一个密封部分的外表面上，以对应于所述惰性气体封闭空间，并且从所述另一个密封部分连接到所述外部引导杆; 以及布置在一个密封部分中的惰性气体封闭空间中的内部导体，并且具有与布置有外部导体的一个密封部分相对应的一个馈送器的电位相同的电位的内部导体。

公开(公告)号：US20090224667A1

公开(公告)日：2009-09-10

申请号：US12318797

申请日：2009-01-08

申请人： Toshitaka FUJII ,  Atsuji NAKAGAWA

发明人： Toshitaka FUJII ,  Atsuji NAKAGAWA

IPC分类号： H01J61/00

CPC分类号： H01J61/54 ,  H01J63/02

摘要： The auxiliary light source includes a vacuum chamber, a pair of electrodes, and fluorescent material. The vacuum chamber has an internal space which is evacuated. The pair of electrodes is situated inside the vacuum chamber so as to face each other. The fluorescent material is arranged inside the vacuum chamber and emits light including ultraviolet rays by receiving electrons emitted when voltage is applied between the electrodes. An arc tube of a high-pressure discharge lamp is situated within an irradiation range of the light, and the light is emitted at least from a time just before the high-pressure discharge lamp is turned on until the high-pressure lamp emits light.

摘要翻译： 辅助光源包括真空室，一对电极和荧光材料。 真空室具有被抽空的内部空间。 一对电极位于真空室的内部，以便彼此面对。 荧光材料布置在真空室的内部，通过在电极之间施加电压时接收发射的电子，发射包括紫外线的光。 高压放电灯的电弧管位于光的照射范围内，并且至少从刚开始高压放电灯之前的时间发射光，直到高压灯发光。

公开(公告)号：US20110080728A1

公开(公告)日：2011-04-07

申请号：US12785032

申请日：2010-05-21

申请人： Atsuji NAKAGAWA ,  Tomihiko IKEDA ,  Kana WATANABE

发明人： Atsuji NAKAGAWA ,  Tomihiko IKEDA ,  Kana WATANABE

IPC分类号： F21V1/00

CPC分类号： F21V5/04 ,  F21K9/233 ,  F21Y2115/10

摘要： A light emitting device 10A comprises: a bowl-shaped reflector 12 having a focal point F; and illuminators 14 have LED elements 28 being square in planar view and lenses 30 forming virtual images I of the LED elements 28 behind the LED element 28; wherein a position of each of the virtual images I from the lens 30 is farther than a position of the focal point F from the lens 30; when a distance A between the virtual image I and the focal point F and a length of outer circumference B of the LED element 28 being square in planar view are assumed, a value of A divide B (A/B) is not less than 0.08 and not more than 0.42.

摘要翻译： 发光装置10A包括：具有焦点F的碗形反射器12; 并且照明器14具有在平面视图中为正方形的LED元件28和在LED元件28后面形成LED元件28的虚像I的透镜30; 其中来自透镜30的每个虚拟图像I的位置比来自透镜30的焦点F的位置更远; 假设在虚拟图像I和焦点F之间的距离A和LED元件28的外周长度B在平面图中为正方形，则A除法B（A / B）的值不小于0.08 不超过0.42。