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    • 1. 发明授权
    • ARC tube for discharge lamp unit and method of manufacturing same
    • 放电灯单元的ARC管及其制造方法
    • US06547619B1
    • 2003-04-15
    • US09599721
    • 2000-06-23
    • Nobuo OhkawaiYoshitaka OhshimaShinichi IrisawaMasakazu Nagasawa
    • Nobuo OhkawaiYoshitaka OhshimaShinichi IrisawaMasakazu Nagasawa
    • H01J928
    • H01J9/326H01J61/368
    • A method of manufacturing an arc tube for a discharge lamp unit, incorporating a primary pinch-sealing step for mounting an electrode assembly in an open end of a glass tube W with a chamber portion 12. The electrode assembly comprises an electrode rod 6, a connecting foil 7 and a lead wire 8 integrally connected in series. The electrode assembly is inserted into an open end of the glass tube W such that a leading end of the electrode rod projects into the chamber portion 12. A temporary pinch seal region L1 of the glass tube W is pinch-sealed such that a portion of the connecting foil that is connected to the lead wire is contacted by the glass tube W. A vacuum is maintained inside the glass tube and a main pinch seal region L2 of the glass tube is pinch-sealed such that a portion of the connecting foil connected to the electrode rod is contacted by the glass tube. When the main pinch seal region L2 of glass tube W is pinch-sealed, the negative pressure in the glass tube W is exerted on the softened sealed chamber portion 12 owing to supplied heat as well as the pressure exerted from the pincher 26b. Thus, the glass layer 15 is pressed against the surface of the molybdenum foil 7 so that hermetic contact is realized.
    • 一种制造用于放电灯单元的电弧管的方法,其包括用于将电极组件安装在具有腔室部分12的玻璃管W的开口端中的初级夹紧步骤。电极组件包括电极棒6, 连接箔7和串联连接的引线8。 将电极组件插入到玻璃管W的开口端,使得电极杆的前端突出到室部分12中。玻璃管W的临时夹紧密封区域L1被夹紧密封,使得一部分 连接到引线的连接箔与玻璃管W接触。玻璃管内保持真空,并且密封玻璃管的主夹紧密封区域L2,使得连接箔片的一部分连接 电极杆与玻璃管接触。 当玻璃管W的主夹紧密封区域L2被密封时,玻璃管W中的负压由于供应的热量以及从夹持器26b施加的压力而施加在软化的密封室部分12上。 因此,将玻璃层15压在钼箔7的表面上,从而实现气密接触。
    • 3. 发明授权
    • Arc tube having a pair of molybdenum foils, and method for its
fabrication
    • 具有一对钼箔的电弧管及其制造方法
    • US5936349A
    • 1999-08-10
    • US814831
    • 1997-03-11
    • Kunio FukaiNobuo OhkawaiMasakazu Nagasawa
    • Kunio FukaiNobuo OhkawaiMasakazu Nagasawa
    • H01J9/32H01J61/36H01J5/38
    • H01J61/368H01J9/326
    • The invention is directed to preventing occurrence of molybdenum foil breakage during a pinch sealing operation in a method of fabricating an arc tube having a pair of molybdenum foils pinch-sealed on both sides of a spherical portion of a glass tube by sequentially pinch-sealing the respective molybdenum foils. A first molybdenum foil is not pinch-sealed (first pinch seal) with an inert gas introduced into a glass tube as in a conventional embodiment, but is pinch-sealed with the internal pressure of the glass tube maintained at a vacuum of 0.5 torr or less. As a result, oxidation of the molybdenum foils causing breakage of the molybdenum foils during a pinch sealing operation is minimized. Hence, an arc tube having each of a pair of molybdenum foils made of molybdenum whose purity is 99.95% or more and with a thickness of 20 .mu.m or less can be fabricated.
    • 本发明的目的在于防止在夹紧密封操作期间发生钼箔破裂的方法,该方法是通过将玻璃管的球形部分的两侧上夹有密封的一对钼箔制成电弧管的方法, 各自的钼箔。 如在常规实施例中那样,第一钼箔不被密封(第一夹紧密封),惰性气体被引入到玻璃管中,而是被保持在真空度为0.5托的玻璃管的内部压力或 减。 结果,在夹紧密封操作期间导致钼箔破裂的钼箔的氧化被最小化。 因此,可以制造具有纯度为99.95%以上且厚度为20μm以下的钼钼钼箔的各自的电弧管。
    • 4. 发明授权
    • Arc tube and method for manufacturing the same
    • 电弧管及其制造方法
    • US5286227A
    • 1994-02-15
    • US992483
    • 1992-12-17
    • Yasuyoshi NumajiriShinichi IrisawaKunio FukaiMasakazu Nagasawa
    • Yasuyoshi NumajiriShinichi IrisawaKunio FukaiMasakazu Nagasawa
    • H01J9/32H01J9/24H01J61/30H01J61/36H01J9/38
    • H01J61/368H01J9/247
    • An arc tube having a closed glass bulb having no broken-off portion, and a method of manufacturing the arc tube. A glass bulb is formed on a glass tube substantially at the middle. An electrode assembly is inserted into one end portion of the glass tube, and the one end portion is closed by pinch-sealing. A light emitting material is supplied into the glass bulb through the other end portion of the glass tube, another electrode assembly is inserted into the other end portion, and the latter is closed by pinch-sealing. Since the closed glass bulb has no broken-off portion, the arc tube is free from the difficulty that the distribution of light is adversely affected. Moreover, in manufacturing the arc tube of the invention, it is unnecessary to connect an exhaust tube to the glass tube. Therefore, the number of manufacturing steps is small, and the arc tube can be manufactured with ease.
    • 一种具有封闭式玻璃灯泡的不具有断开部分的电弧管及其制造方法。 玻璃管基本上在中间形成玻璃灯泡。 将电极组件插入玻璃管的一个端部,通过夹紧密封一个端部。 将发光材料通过玻璃管的另一端部供给到玻璃泡中,将另一方的电极组件插入到另一端部,通过密封来封闭。 由于封闭的玻璃灯泡没有断裂部分,所以电弧管不受光的分布的不利影响。 此外,在制造本发明的电弧管时,不需要将排气管连接到玻璃管。 因此,制造步骤的数量少,可以容易地制造电弧管。
    • 5. 发明授权
    • Contamination-free method of making arc tubes
    • 无电弧法制造电弧管
    • US5505648A
    • 1996-04-09
    • US360945
    • 1994-12-21
    • Masakazu NagasawaKunio FukaiShinichi Irisawa
    • Masakazu NagasawaKunio FukaiShinichi Irisawa
    • H01J9/32H01J9/395H01J9/40
    • H01J9/395H01J9/326H01J9/40
    • In the manufacture of arc tubes for use as light sources of vehicle headlamps, there is first prepared a semifinished arc tube by inserting one electrode assembly into a tubular glass envelope through one end thereof and by sealing this end. The semifinished arc tube is then placed in communication with a hermetically enclosed space filled with argon under pressure, with the consequent introduction of the inert gas into the glass envelope through a second end thereof. Another electrode assembly and chemicals such as a metal halide and mercury are then introduced from the enclosed space into the semifinished arc tube through the second end, totally without contact with the atmospheric air. Then, with the glass envelope placed out of communication with the enclosed space, the argon is exhausted from within the envelope, and xenon is charged instead into the envelope through the second end, which is closed subsequently.
    • 在用作车辆前照灯光源的电弧管的制造中,首先通过将一个电极组件通过其一端插入管状玻璃封套中并通过密封该端部来制备半成品电弧管。 然后将半成品电弧管置于与加压氩气的气密封闭的空间连通,随后将惰性气体通过其第二端引入玻璃封套。 然后另外的电极组件和诸如金属卤化物和汞的化学物质通过第二端从封闭空间引入半成品电弧管,完全不与大气接触。 然后,玻璃封套放置在与封闭空间不连通的地方,氩气从封套内排出,氙气通过第二端被装入信封中,随后封闭。
    • 7. 发明授权
    • Discharge lamp base construction
    • 放电灯基座施工
    • US5059855A
    • 1991-10-22
    • US556508
    • 1990-07-24
    • Shinichi IrisawaYukio WakimizuMasakazu Nagasawa
    • Shinichi IrisawaYukio WakimizuMasakazu Nagasawa
    • H01J5/50H01J5/54H01J61/34
    • H01J5/54
    • A discharge lamp has a lamp assembly including a discharge lamp unit with a pair of lamp leads extending therefrom, and a base assembly including a pair of base leads electrically connected to the pair of lamp leads and mechanically supporting the lamp unit in position with respect to the base assembly. The base assembly comprises a hollow base structure of electrically insulating material molded in one piece with a partition dividing the interior thereof into a pair of completely isolated spaces. Electrically connected to the base leads, a pair of sheet metal conductors are received with clearances in the respective isolated spaces in order to preclude the possibility of an electric discharge taking place between the pair of conductors within the base structure.
    • 放电灯具有灯组件,其包括具有从其延伸的一对灯引线的放电灯单元,以及基座组件,其包括电连接到所述一对灯引线的一对基座引线,并将灯单元相对于 基座组件。 基座组件包括一个电绝缘材料的中空基座结构,该基座结构被模制成一体,并具有将其内部分成一对完全隔离空间的隔板。 电连接到基座引线上,一对金属片导体在相应的隔离空间中以间隙的形式接收,以防止在基座结构内的一对导体之间发生放电的可能性。
    • 9. 发明授权
    • Glow plug and glow-plug-mounting structure
    • 辉光插头和电热塞安装结构
    • US06844525B2
    • 2005-01-18
    • US10714809
    • 2003-11-17
    • Takaya YoshikawaHiroyuki SuzukiMasakazu Nagasawa
    • Takaya YoshikawaHiroyuki SuzukiMasakazu Nagasawa
    • F23Q7/00
    • F23Q7/001
    • In a glow plug configured such that a metallic, tubular member having a heater fixedly provided therein is joined to a metallic shell, an external-thread portion is formed on the outer circumferential surface of the metallic shell so as to allow the glow plug to be screwed into a plug-mounting hole formed in an engine head. An annular protrusion is formed on the outer circumferential surface of the metallic, tubular member in such a manner as to protrude radially outward, to annularly extend in the circumferential direction, and to be located in the vicinity of a distal end of the metallic shell. A distally-facing end face of the annular protrusion abuts an annular seat face in the mounting hole, and the metallic, tubular member and the metallic shell are joined such that a distal end face of the metallic shell abuts a rearward-facing end face of the annular protrusion.
    • 在电热塞构造成使得具有固定地设置在其中的加热器的金属管状构件接合到金属外壳上,在金属外壳的外周表面上形成外螺纹部分,以使电热塞为 拧入形成在发动机头中的插头安装孔。 在金属管状部件的外周面上以径向向外突出的方式形成环状的突起,在圆周方向上环状地延伸,并且位于金属壳的远端附近。 环形突起的朝向远端的端面与安装孔中的环形座面抵接,并且金属管状构件和金属壳接合,使得金属壳的远端面与背面侧的端面相接触, 环形突起。