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    Endoscope with decreased stray light effect that includes a light shielding member that does not pass any light rays emitted from an illuminator
    21.
    发明授权
    Endoscope with decreased stray light effect that includes a light shielding member that does not pass any light rays emitted from an illuminator 有权
    具有降低的杂散光效果的内窥镜，其包括不通过从照明器发射的任何光线的遮光构件

    公开(公告)号：US07931587B2

    公开(公告)日：2011-04-26

    申请号：US11474937

    申请日：2006-06-27

    申请人： Koichiro Yoshino

    发明人： Koichiro Yoshino

    IPC分类号： A61B1/00

    CPC分类号： H04N5/2252 ,  A61B1/00096 ,  A61B1/041 ,  A61B1/051 ,  A61B1/0638 ,  A61B1/0661 ,  H04N5/2256 ,  H04N2005/2255

    摘要： An endoscope includes an illuminator that includes a light emitting surface for illuminating the inside of a living body, an objective optical system for forming an image of a specified object on one side of the objective optical system and illuminated by the illuminator, and a transparent cover that encompasses the illuminator and the one side of the objective optical system. The transparent cover includes an outer surface, and light emitted from the light emitting surface that is reflected by the outer surface satisfies a certain condition that helps prevent rearward dispersed light caused by scratches on, or substances adhering to, the external surface of the transparent cover from entering the entrance pupil of the objective optical system. The endoscope may also include a member for partially shielding the light emitted from the light emitting surface so as to limit the direction in which light is directed from said light emitting surface to the transparent cover.

    摘要翻译： 内窥镜包括：照明器，其具有用于照射生物体内部的发光面，用于在物镜光学系统的一侧形成指定物体的图像并由照射器照射的物镜光学系统;以及透明罩 其包括照明器和物镜光学系统的一侧。 透明盖包括外表面，并且从外表面反射的从发光表面发出的光满足一定条件，其有助于防止由透明盖的外表面上的划痕或物质附着引起的向后分散的光 进入物镜光学系统的入射光瞳。 内窥镜还可以包括用于部分地屏蔽从发光表面发射的光以便将光从所述发光表面引导到透明盖的方向的部件。

    Refining method and refining apparatus for chromium-contained molten steel
    23.
    发明申请
    Refining method and refining apparatus for chromium-contained molten steel 有权
    含铬钢水的精炼方法和精炼装置

    公开(公告)号：US20070152386A1

    公开(公告)日：2007-07-05

    申请号：US11712778

    申请日：2007-02-28

    申请人： Kosuke Yamashita ,  Ryuji Nakao ,  Tomoaki Tanaka ,  Masao Igarashi ,  Koichiro Yoshino ,  Makoto Sumi

    发明人： Kosuke Yamashita ,  Ryuji Nakao ,  Tomoaki Tanaka ,  Masao Igarashi ,  Koichiro Yoshino ,  Makoto Sumi

    IPC分类号： C21C7/10

    CPC分类号： F27D3/16 ,  C21C5/005 ,  C21C5/30 ,  C21C5/35 ,  C21C7/0685 ,  C21C7/10 ,  F27D3/0025 ,  F27D3/0032 ,  F27D17/001 ,  F27D17/004 ,  F27D2003/164 ,  F27D2003/166 ,  F27D2003/168

    摘要： A refining method and refining apparatus, able to shorten the time required for refining and reduce the refining costs in decarburization refining of a chromium-contained molten steel, which refining method for chromium-contained molten steel etc. performing decarburization refining by blowing a gas containing oxygen gas into a chromium-contained molten steel under a vacuum or atmospheric pressure and vacuum, said refining method for a chromium-contained molten steel etc. characterized by having a first step for blowing oxygen gas while making the inside of the vessel a pressure of a range of 400 Torr (53 kPa) to atmospheric pressure, a second step for blowing oxygen gas while evacuating the inside of the vessel to 250 to 400 Torr (33 to 53 kPa), and third step for blowing gas while evacuating the inside of the vessel to not more than 250 Torr (33 kPa). Further, a refining method and refining apparatus for an ultra-low carbon chrome melt characterized by performing a first vacuum refining until the third step, then restoring the pressure in the vessel to at least 400 Torr (53 kPa), then performing second vacuum refining while making the bottom blowing gas blow rate at least 0.4 Nm3/min per ton steel.

    摘要翻译： 一种精炼方法和精炼装置，其能够缩短精炼所需的时间并降低含铬钢水的脱碳精炼中的精炼成本，该含铬钢水等的精炼方法通过吹入含有气体的气体进行脱碳精炼 氧气在真空或大气压和真空下进入含铬钢水，所述含铬钢水的精炼方法等，其特征在于具有吹入氧气的第一步骤，同时使容器内部的压力为 400Pa（53kPa）至大气压范围的第二步骤，同时将容器内部抽空至250-400乇（33至53kPa）的第二步骤，同时抽空气体的第三步骤 该容器不超过250乇（33 kPa）。 此外，一种用于超低碳铬熔体的精炼方法和精炼装置，其特征在于进行第一真空精炼直到第三步骤，然后将容器中的压力恢复至至少400乇（53kPa），然后进行第二真空精炼 同时使每小时钢的底吹气体吹送速率至少为0.4Nm 3 / min。