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41. 发明授权

US06734628B2 Discharge lamp, lamp unit and image display apparatus 失效
标题翻译：放电灯，灯单元和图像显示装置
公开(公告)号：US06734628B2
公开(公告)日：2004-05-11
申请号：US09870344
申请日：2001-05-30
申请人： Tomoyuki Seki , Makoto Horiuchi , Makoto Kai , Tsuyoshi Ichibakase , Mamoru Takeda , Shinichi Yamamoto , Kenichi Sasaki
发明人： Tomoyuki Seki , Makoto Horiuchi , Makoto Kai , Tsuyoshi Ichibakase , Mamoru Takeda , Shinichi Yamamoto , Kenichi Sasaki
IPC分类号： H01J1718
CPC分类号： H01J61/523 , H01J61/35 , H01J61/368
摘要： A discharge lamp includes a luminous bulb in which a luminous material is enclosed and a pair of electrodes are opposed to each other in the luminous bulb; and a pair of sealing portions for sealing a pair of metal foils electrically connected to the pair of electrodes, respectively. Each of the pair of metal foils has an external lead on a side opposite to a side electrically connected to a corresponding electrode of the pair of electrodes. At least one of the pair of sealing portions is provided with a reflective film on a surface of the sealing portion in a portion where a connection portion of the external lead and the metal foil is sealed. The reflective film contains a material having a reflectance larger than that of a material constituting the sealing portion.
摘要翻译：放电灯包括发光体，发光体被封闭的发光管和一对电极在发光管中彼此相对; 以及一对密封部分，用于分别密封电连接到该对电极的一对金属箔。一对金属箔中的每一个在与一对电极的相应电极电连接的一侧的相反侧具有外部引线。一对密封部中的至少一个在外部引线和金属箔的连接部分被密封的部分中在密封部分的表面上设置有反射膜。反射膜含有反射率大于构成密封部的材料的反射率的材料。

42. 发明授权

US06515406B1 High-pressure mercury vapor discharge lamp and lamp unit 有权
标题翻译：高压汞蒸气放电灯和灯具单元
公开(公告)号：US06515406B1
公开(公告)日：2003-02-04
申请号：US09890132
申请日：2001-07-26
申请人： Makoto Kai , Mamoru Takeda , Yoshiki Kitahara
发明人： Makoto Kai , Mamoru Takeda , Yoshiki Kitahara
IPC分类号： H01J516
CPC分类号： H01J61/86
摘要： A short-arc high-pressure mercury vapor discharge lamp includes a pair of electrodes in an arc tube and encloses mercury, a rare gas, and so forth in the arc tube. The lamp is so constructed as to be operated at a lamp current of, for example, about 1.5 A or higher, or at a lamp voltage/lamp current ratio of about 37.5 (V/A) or lower. In addition, the distance between the electrodes, and the like are set so that the rated power per unit arc length P/d≧88 (W/mm) and the tube wall loading Pw (rated power P/internal surface area of the arc tube)≦1.0 (W/mm2). Thus, a lamp is constructed having, even with a relatively low lamp voltage, a high lamp power of, for example, 125 W or higher, having a short arc length and a high luminous flux per unit arc length, and furthermore being one in which damage to the arc tube does not occur.
摘要翻译：短弧高压汞蒸气放电灯包括在电弧管中的一对电极，并且在电弧管中包围汞，稀有气体等。灯被构造成以例如约1.5A或更高的灯电流或约37.5（V / A）或更低的灯电压/灯电流比操作。此外，电极之间的距离等被设定为使得每单位电弧长度P / d> = 88（W / mm）的额定功率和管壁负载Pw（额定功率P /内部表面积电弧管）<= 1.0（W / mm2）。因此，即使在灯电压相对较低的情况下，也可以构成为具有短电弧长度，每单位电弧长度高的光通量的例如125W以上的高功率灯，不会发生对电弧管的损坏。

43. 发明授权

US06479946B2 Method and system for driving high pressure mercury discharge lamp, and image projector 有权
标题翻译：用于驱动高压汞放电灯的方法和系统，以及图像投影仪
公开(公告)号：US06479946B2
公开(公告)日：2002-11-12
申请号：US09517070
申请日：2000-03-01
申请人： Makoto Kai , Makoto Horiuchi , Mamoru Takeda , Takeharu Tsutsumi , Toshiaki Ogura
发明人： Makoto Kai , Makoto Horiuchi , Mamoru Takeda , Takeharu Tsutsumi , Toshiaki Ogura
IPC分类号： H05B4116
CPC分类号： H05B41/2928 , Y02B20/208
摘要： An image projector has a lamp unit 23 having a high-pressure mercury vapor discharge lamp 21 and a parabolic mirror 22. To the high-pressure mercury vapor discharge lamp 21, a driving system 24 applies an alternating voltage such that wandering of a cathode luminescent spot generated in the vicinity of a tip of each of the discharge electrodes of the high-pressure mercury vapor discharge lamp 21 is suppressed, the frequency being within the range of 20-42 kHz. This construction allows to prevent flicker in a projected image of a liquid crystal projector and the like, and therefore achieves high quality in the projected image.
摘要翻译：图像投影仪具有具有高压水银蒸气放电灯21和抛物面镜22的灯单元23.对于高压汞蒸气放电灯21，驱动系统24施加交流电压，使得阴极发光在高压汞蒸气放电灯21的每个放电电极的尖端附近产生的光斑被抑制，频率在20-42kHz的范围内。这种结构允许防止液晶投影仪等的投影图像中的闪烁，因此在投影图像中实现高质量。

44. 发明授权

US06368175B1 Discharge lamp and method of producing the same 有权
标题翻译：放电灯及其制造方法
公开(公告)号：US06368175B1
公开(公告)日：2002-04-09
申请号：US09270004
申请日：1999-03-16
申请人： Makoto Horiuchi , Makoto Kai , Mamoru Takeda
发明人： Makoto Horiuchi , Makoto Kai , Mamoru Takeda
IPC分类号： H01J924
CPC分类号： H01J61/302 , C03B23/0493 , C03B23/07 , C03B2201/04 , H01J9/247
摘要： The present invention provides a long-life discharge lamp by removing the causes of lowering the service life of the discharge lamp owing to quartz glass constituting the discharge lamp and a gas sealed therein, and also provides a discharge lamp production method wherein the mixing of impurities affecting the service life of the discharge lamp is prevented. In the discharge lamp the content of hydrogen, oxygen and their compounds existing in the light-emitting portion is such that the maximum intensity of the light-emitting spectral intensities of the above impurities is {fraction (1/1000)} or less of the intensity of the main light-emitting spectrum of the noble gas when glow discharge occurs by supplying a current of 3 mA, and also the content of OH groups included in the quartz glass of the sealing portions is 5 ppm or less by weight.
摘要翻译：本发明提供了一种长寿命放电灯，通过消除由于构成放电灯的石英玻璃和密封在其中的气体而导致放电灯的使用寿命降低的原因，并且还提供了一种放电灯的制造方法，其中杂质影响放电灯的使用寿命。在放电灯中，存在于发光部分中的氢，氧及其化合物的含量使得上述杂质的发光光谱强度的最大强度为{分数（1/1000）}以下通过提供3mA的电流而发生辉光放电时的惰性气体的主要发光光谱的强度，以及包含在密封部分的石英玻璃中的OH基团的含量为5ppm以下。

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