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    • 72. 发明授权
    • Light source for endoscopes, having different numerical-aperture light
collection system
    • 内窥镜光源,具有不同的数值孔径光采集系统
    • US6139175A
    • 2000-10-31
    • US395743
    • 1999-09-14
    • Makoto TomiokaAkira HasegawaTakayuki SuzukiYumi Ikeda
    • Makoto TomiokaAkira HasegawaTakayuki SuzukiYumi Ikeda
    • G02B23/26A61B1/06F21V8/00G02B6/42H04N5/225
    • G02B6/0006G02B6/4206G02B6/4298
    • A light source device for endoscopes includes a light source; a condenser lens unit for collecting light beams from the light source; a light guide for receiving the light beams collected through the condenser lens unit into its entrance end face to transmit them to its exit end face; and a reflecting mirror located on the opposite side of the condenser lens unit with respect to the light source. The light source device is designed so that a position where the light beams emitted from the light source are collected directly through the condenser lens unit does not coincide with a position where the light beams emitted from the light source and reflected back to the light source by the reflecting mirror are collected through the condenser lens unit. In an embodiment, an arc axis of the light source is substantially parallel to the optical axis of the condenser lens unit. In another embodiment, direct light and reflected light each enter an entrance face of a forked light guide. In another embodiment, an infra-red removing filter is interposed between a front lens and a rear lens of the condenser unit.
    • 一种内窥镜用光源装置,具备:光源; 聚光透镜单元,用于收集来自光源的光束; 用于将通过聚光透镜单元收集的光束接收到其入口端面以将其传送到其出射端面的光导; 以及位于聚光透镜单元相对于光源的相反侧的反射镜。 光源装置被设计成使得从光源发射的光束直接通过聚光透镜单元收集的位置与从光源发射并从光源发射并反射回光源的位置不一致,该位置通过 反射镜通过聚光透镜单元收集。 在一个实施例中,光源的弧轴基本上平行于聚光透镜单元的光轴。 在另一个实施例中,直射光和反射光各自进入叉形光导的入射面。 在另一个实施例中,红外去除滤光片插入在聚光单元的前透镜和后透镜之间。
    • 73. 发明授权
    • Light source device
    • 光源装置
    • US6022123A
    • 2000-02-08
    • US880799
    • 1997-06-23
    • Makoto TomiokaAkira HasegawaTakayuki SuzukiYumi Ikeda
    • Makoto TomiokaAkira HasegawaTakayuki SuzukiYumi Ikeda
    • G02B23/26A61B1/06F21V8/00G02B6/42F21V5/04
    • G02B6/0006G02B6/4298F21Y2113/00
    • A light source device formed of two or more light emitting components and a collector optical component or system which collects light that is emitted from light emitting regions of the light emitting components. Light from the light emitting regions is spatially combined along a common optical axis and formed into an output beam. The light source device positions respective light emitting regions of two or more light emitting components at conjugate foci of a light collector component or system, thus providing a spatially combined output beam from the two or more light emitting regions. Thus, the intensity (i.e., brightness) of the combined output beam exceeds that produced by any individual light emitting region. Further, the light source device of the invention enables a much higher intensity, combined output beam to be produced than previously obtainable from conventional, non-laser light sources.
    • 由两个或更多个发光部件形成的光源装置和收集从发光部件的发光区域发射的光的收集光学部件或系统。 来自发光区域的光沿共同的光轴空间地组合并形成输出光束。 光源装置将两个或更多个发光部件的发光区域定位在集光器部件或系统的共轭焦点处,从而提供来自两个或更多个发光区域的空间结合的输出光束。 因此,组合的输出光束的强度(即,亮度)超过由任何单个发光区域产生的强度(即亮度)。 此外,本发明的光源装置能够比以前从常规的非激光光源获得的更高强度的组合输出光束产生。
    • 77. 发明授权
    • Stringer tape and slide fastener incorporating the same
    • 包括其的带钢带和拉链
    • US5528801A
    • 1996-06-25
    • US298174
    • 1994-08-30
    • Akira Hasegawa
    • Akira Hasegawa
    • A44B19/02A44B19/34A44B19/40A44B19/00
    • A44B19/346Y10T24/2523Y10T24/2525Y10T24/2539
    • A slide fastener comprising a pair of stranger tapes, each including an elongated tape body including a plurality of warp threads and a beaded longitudinal edge portion provided on one longitudinal edge of the elongated tape body, the beaded marginal portion including a tube formed integrally with the elongated tape body and a plurality of filler threads inserted through the tube in such a way not to be intertwined with each other, the filler threads being identical in denier with the warp thread; and two rows of coupling elements extruded from plastics and each mounted on the respective beaded edge, each element comprising a coupling head and a pair of clamping legs extending rearward from the coupling head, each row of coupling elements being connected with two connecting rods embedded in the legs, each element clamp-mounted on the beaded edge with the legs sewn to the beaded edge by sewn stitches.
    • 一种拉链,包括一对陌生的带子,每条带子包括细长的带体,该带状体包括多根经线,以及设置在细长带体的一个纵向边缘上的串珠的纵向边缘部分,珠状边缘部分包括与 细长的带体和多个填充线,其以不相互缠绕的方式插入管中,填充线的旦数与经线相同; 和两排由塑料挤出并且各自安装在相应的珠缘边缘上的每个连接元件,每个元件包括联接头和从联接头向后延伸的一对夹持腿,每排联接元件与嵌入在其中的两个连接杆连接 腿部,每个元件夹紧安装在串珠边缘上,腿部通过缝合缝合缝合到串珠边缘。
    • 79. 发明授权
    • Acoustic lens system
    • 声透镜系统
    • US5365024A
    • 1994-11-15
    • US15303
    • 1993-02-09
    • Akira HasegawaMasayoshi OmuraShinichi ImadeEishi Ikuta
    • Akira HasegawaMasayoshi OmuraShinichi ImadeEishi Ikuta
    • G01N29/22A61B8/00G10K11/30H04R1/34G10K11/00G01S15/00
    • G10K11/30
    • The acoustic lens system is used for ultrasonic imaging in an ultrasonic system which displays an image of an object while transmitting ultrasonic waves and receiving the ultrasonic waves reflected from the object, and has a half field angle .omega. expressed as follows: ##EQU1## wherein the reference symbol v.sub.0 represents the velocity of sound in the medium located on the incidence side of the first lens surface and the reference symbol v.sub.1 designates the velocity of sound in the medium located on the emergence side of the first lens surface. Accordingly, the acoustic lens system according to the present invention is remarkably excellent in the performance thereof in respect of field angles, aberrations, aperture angles, attenuation, etc., and has an advantage to permits further reducing acoustic attenuation and preventing spurious images from being formed due to multiple reflections by arranging antireflection films on the lens surfaces.
    • 声透镜系统用于在超声波系统中进行超声波成像,该超声波系统在发送超声波并接收从物体反射的超声波的同时显示物体的图像,并且具有如下表示的半场角ω:其中 附图标记v0表示位于第一透镜表面的入射侧的介质中的声速,附图标记v1表示位于第一透镜表面的出射侧的介质中的声速。 因此,根据本发明的声透镜系统在场角,像差,孔径角,衰减等方面的性能非常优异,并且具有进一步降低声衰减和防止杂散图像的优点 通过在透镜表面上布置防反射膜而导致多次反射而形成。