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    • 1. 发明授权
    • Apparatus for fabricating an optical fiber
    • 光纤制造装置
    • US08322165B2
    • 2012-12-04
    • US12189440
    • 2008-08-11
    • Tetsuya OtosakaYoshiaki Shimizu
    • Tetsuya OtosakaYoshiaki Shimizu
    • C03B37/029
    • C03B37/029C03B2205/10C03B2205/81
    • In an apparatus for fabricating an optical fiber, the apparatus includes a drawing furnace provided with an insertion opening for receiving an optical fiber perform, a feed mechanism configured to support one end of the optical fiber preform so as to feed into the drawing furnace, a first sealing unit configured to seal a clearance gap between the optical fiber preform and the insertion opening, and a second sealing unit configured to seal a gap between the optical fiber preform and the first sealing unit when a tapered portion formed at the one end side of the optical fiber preform passes through the insertion opening. As a result, the available entirety of the optical fiber preform can be changed to an optical fiber, so that the cost for fabricating the optical fiber can be significantly reduced.
    • 在一种制造光纤的装置中,该装置包括设置有用于接收光纤执行的插入口的拉丝炉,配置成将光纤预制件的一端支撑以供入拉丝炉的进给机构, 第一密封单元,其构造成密封光纤预制件和插入开口之间的间隙;以及第二密封单元,其构造成当形成在所述光纤预制件的一端侧的锥形部分时,密封所述光纤预制件和所述第一密封单元之间的间隙 光纤预制棒穿过插入口。 结果,光纤预制棒的可用整体可以改变为光纤,从而可以显着地减少制造光纤的成本。
    • 2. 发明授权
    • Liquid supply device and liquid jetting system
    • 液体供应装置和液体喷射系统
    • US08807717B2
    • 2014-08-19
    • US13225248
    • 2011-09-02
    • Taku IshizawaYoshiaki Shimizu
    • Taku IshizawaYoshiaki Shimizu
    • B41J2/175B41J2/17
    • B41J2/175B41J2/17523B41J2/17553B41J2/17596
    • A liquid supply device 10 is equipped with a liquid containing chamber 16, a transport tube 15 for sending the liquid inside the chamber 16 to a liquid jetting device 20, first and second members 171 and 172 sandwiching the tube 15, and a cam 173 that determines the position of the first member 171 relative to the second member 172. The tube 15 is equipped with an elastic portion 151 that elastically deforms and is flattened. In the first rotation position, the cam 173 arranges the first member 171 such that there is a space that allows the liquid to flow inside the part 151 between the first and second members 171, 172. In the second rotation position, the cam 173 arranges the first member 171 such that the elastic portion 151 is flattened by the first and second members 171, 172, and the liquid inside cannot flow.
    • 液体供应装置10配备有液体容纳室16,用于将腔室1​​6内的液体送到液体喷射装置20的输送管15,夹着管15的第一和第二构件171和172以及夹持管15的凸轮173 确定第一构件171相对于第二构件172的位置。管15配备有弹性变形并变平的弹性部151。 在第一旋转位置,凸轮173布置第一构件171,使得存在允许液体在第一和第二构件171,172之间的部分151内部流动的空间。在第二旋转位置,凸轮173布置 第一构件171使得弹性部分151被第一和第二构件171,172平坦化,并且内部的液体不能流动。
    • 4. 发明授权
    • Liquid accommodating container, tank unit, and liquid ejecting system
    • 液体容纳容器,罐单元和液体喷射系统
    • US08454139B2
    • 2013-06-04
    • US13183383
    • 2011-07-14
    • Taku IshizawaYoshiaki ShimizuYuki Takeda
    • Taku IshizawaYoshiaki ShimizuYuki Takeda
    • B41J2/175
    • B41J2/175B41J2/17509B41J2/17513B41J2/17523B41J2/17553
    • A liquid accommodating container in which in a use position, a port opened to the air is provided at a position that is closer to an air chamber uppermost surface and is included in a first corner portion, an air-side opening is provided at a position that is closer to an air chamber lowermost surface and is included in a second corner portion which is at a diagonal position to the first corner portion, and a liquid-side opening is provided at a position satisfying the following conditions (a) and (b), (a) a position closer to a liquid chamber lowermost surface with respect to the vertical direction in the use position and (b) a position which is included in the second corner portion that is at a position equivalent to a diagonal position to the first corner portion.
    • 一种液体容纳容器,在使用位置上,向空气开放的开口设置在更靠近空气室最上表面的位置并且包括在第一角部中的空气侧开口处, 更靠近空气室最下表面并且包括在与第一角部对角位置的第二角部,并且在满足以下条件(a)和(b)的位置处设置液体侧开口 ),(a)在使用位置中相对于垂直方向更靠近液体室最下表面的位置,以及(b)包括在第二拐角部分中的位置,该位置等于对角线位置的位置 第一角部分。
    • 7. 发明授权
    • Zoom lens
    • 变焦镜头
    • US08081392B2
    • 2011-12-20
    • US12954095
    • 2010-11-24
    • Atsujiro IshiiYoshiaki Shimizu
    • Atsujiro IshiiYoshiaki Shimizu
    • G02B15/15G02B15/14
    • G02B15/173
    • The invention relates to a new mechanism for permitting a zoom lens to focus on a short distance subject by moving a focusing lens group in an amount that varies in an optical axis direction depending on a zooming position. The zoom lens comprises, in order from its object side, a positive first lens group, a negative second lens group and a positive third lens group. Zooming is implemented while the space between adjoining lens groups is varied, and focusing on a short distance subject is implemented by moving the negative second lens group in an amount that varies in the optical axis direction depending on a zooming position. The negative second lens group comprises a negative front unit G2F and a negative rear unit G2R. The space between the negative front unit G2F and the negative rear unit G2R is varied depending on a subject distance but that space remains constant wherever the zooming position lies.
    • 本发明涉及一种新的机构,用于允许变焦镜头通过沿着在光轴方向上变化的量根据变焦位置移动聚焦透镜组来聚焦在短距离物体上。 变焦透镜从其物体侧依次包括正的第一透镜组,负的第二透镜组和正的第三透镜组。 在相邻透镜组之间的空间变化的同时进行变焦,并且通过使负的第二透镜组以在光轴方向上变化的量根据变焦位置的移动来实现对短距离被摄体的聚焦。 负第二透镜组包括负前单元G2F和负后单元G2R。 负前置单元G2F和负侧后置单元G2R之间的空间根据被摄体距离而变化,但是在缩放位置所在的位置保持恒定。