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    METHOD FOR PRODUCING OPTICAL FIBER
    214.
    发明申请
    METHOD FOR PRODUCING OPTICAL FIBER 审中-公开
    生产光纤的方法

    公开(公告)号：US20150027170A1

    公开(公告)日：2015-01-29

    申请号：US14383197

    申请日：2012-12-17

    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

    Inventor： Tetsuya Haruna ,  Masaaki Hirano ,  Yoshiaki Tamura

    IPC: C03B37/027 ,  C03B37/025

    CPC classification number: C03B37/027 ,  C03B37/0253 ,  C03B2201/07 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/02 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/26 ,  C03B2205/40 ,  C03B2205/42 ,  C03B2205/60 ,  C03B2205/72 ,  C03C13/045 ,  C03C25/1061

    Abstract: Provided is a method for producing an optical fiber having low attenuation and including a core that contains an alkali metal element. An optical fiber preform that includes a core part and a cladding part is drawn with a drawing apparatus 1 to form an optical fiber 30, the core part having an average concentration of an alkali metal element of 5 atomic ppm or more and the cladding part containing fluorine and chlorine. The optical fiber includes a glass portion and resin coating portion and the glass portion is under residual stress that is a compressive stress of 130 MPa or less. During the drawing, the time during which an individual position of the optical fiber preform is maintained at 1500° C. or higher is 110 minutes or less.

    Abstract translation: 提供一种具有低衰减的光纤的制造方法，其包含含有碱金属元素的芯。 包括核心部分和包层部分的光纤预制棒被拉伸装置1拉伸以形成光纤30，芯部的碱金属元素的平均浓度为5原子ppm以上，包层部分含有 氟和氯。 光纤包括玻璃部分和树脂涂覆部分，并且玻璃部分处于130MPa或更小的压缩应力的残余应力。 在拉伸过程中，将光纤预制件的单个位置保持在1500℃以上的时间为110分钟以下。

    SILICA CONTAINER AND METHOD FOR PRODUCING THE SAME
    215.
    发明申请
    SILICA CONTAINER AND METHOD FOR PRODUCING THE SAME 审中-公开
    二氧化硅容器及其制造方法

    公开(公告)号：US20140290308A1

    公开(公告)日：2014-10-02

    申请号：US14304530

    申请日：2014-06-13

    Applicant: SHIN-ETSU QUARTZ PRODUCTS CO., LTD.

    Inventor： Shigeru YAMAGATA ,  Tomomi USUI

    IPC: C03B19/09

    CPC classification number: C03B19/095 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/32 ,  C30B15/10 ,  C30B29/06 ,  C30B35/002 ,  Y10T428/131 ,  Y10T428/1317 ,  Y10T428/2982

    Abstract: A method for producing a silica container having a rotational symmetry includes forming a preliminarily molded article by feeding a powdered substrate's raw material to an inner wall of an outer frame having aspiration holes with rotating the frame, and forming a silica substrate. The preliminarily molded article is aspirated from an outer peripheral side with controlling a humidity inside the outer frame by ventilating gases present in the outer frame with charging from inside the preliminarily molded article a gas mixture comprised of an O2 gas and an inert gas and made below a prescribed dew-point temperature by dehumidification, and at the same time heated from inside the preliminarily molded article by a discharge-heat melting method with carbon electrodes, thereby making an outer peripheral part of the preliminarily molded article to a sintered body while an inner peripheral part to a fused glass body.

    Abstract translation: 制造具有旋转对称性的二氧化硅容器的方法包括通过将粉末状基材的原料供给到具有旋转框架的具有抽吸孔的外框架的内壁，并形成二氧化硅基板来形成预成型品。 从外周侧抽吸预成型品，通过从外部框架内部充填从O 2气体和惰性气体构成的气体混合物从外部框架内的气体通风来控制外框内的湿度， 通过除湿规定的露点温度，同时用碳电极通过放电加热熔融法从预成型体内部加热，由此使预成型品的外周部分成为烧结体，而内部 周边部分为熔融玻璃体。

    METHOD FOR PRODUCING OPTICAL FIBER PREFORM
    218.
    发明申请
    METHOD FOR PRODUCING OPTICAL FIBER PREFORM 审中-公开
    生产光纤预制件的方法

    公开(公告)号：US20120198891A1

    公开(公告)日：2012-08-09

    申请号：US13363652

    申请日：2012-02-01

    Applicant: Yoshiaki TAMURA ,  Masaaki HIRANO ,  Tetsuya HARUNA

    Inventor： Yoshiaki TAMURA ,  Masaaki HIRANO ,  Tetsuya HARUNA

    IPC: C03B37/075 ,  C03B37/012

    CPC classification number: C03B37/01869 ,  C03B37/01228 ,  C03B37/01861 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50

    Abstract: A method for producing an optical fiber preform according to the present invention includes a collapse step of collapsing a silica-based glass tube by heating with a heat source continuously traversed in the longitudinal direction of the glass tube to form a first glass rod to be formed into a core part or part of a core part of an optical fiber, the glass tube having an inner surface doped with an alkali metal, in which the glass tube has a maximum alkali metal concentration of 500 to 20,000 atomic ppm, a maximum chlorine concentration of 0 to 1000 atomic ppm, and a maximum fluorine concentration of 0 to 10,000 atomic ppm, and in which in the collapse step, the maximum temperature of the outer surface of the glass tube is 2000° C. to 2250° C., and the traverse speed of the heat source is 30 mm/min to 100 mm/min.

    Abstract translation: 根据本发明的光纤预制件的制造方法包括：通过在沿着玻璃管的长度方向连续地横穿的热源进行加热使二氧化硅系玻璃管塌缩以形成第一玻璃棒的崩溃步骤 成为光纤的核心部分的核心部分或部分，玻璃管具有掺杂有碱金属的内表面，其中玻璃管具有最大的碱金属浓度为500至20,000原子ppm，最大氯浓度 0〜1000原子ppm，最大氟浓度为0〜10,000原子ppm，在塌陷工序中，玻璃管的外表面的最高温度为2000℃〜2250℃， 热源的横移速度为30mm / min〜100mm / min。

    METHOD FOR MANUFACTURING A LENS OF SYNTHETIC QUARTZ GLASS WITH INCREASED H2 CONTENT
    219.
    发明申请
    METHOD FOR MANUFACTURING A LENS OF SYNTHETIC QUARTZ GLASS WITH INCREASED H2 CONTENT 审中-公开
    具有增加的H2含量的合成石英玻璃镜片的制造方法

    公开(公告)号：US20110203320A1

    公开(公告)日：2011-08-25

    申请号：US13099047

    申请日：2011-05-02

    Applicant: Eric EVA

    Inventor： Eric EVA

    IPC: C03B20/00 ,  C03C21/00 ,  C03C19/00

    CPC classification number: C03C3/06 ,  C03B23/0013 ,  C03B23/0026 ,  C03B32/00 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/21 ,  C03B2201/23 ,  C03C2201/21 ,  C03C2201/23 ,  C03C2203/54

    Abstract: A method for manufacturing at least one lens of synthetic quartz glass with increased H2 content for an optical system with an operating wavelength of less than 250 nm. The method involves: (1) providing at least one precursor product of synthetic quartz glass with a first H2 content, the precursor product having a circumferential border surface and two mutually opposed base surfaces, wherein at least one partial surface of at least one of the base surfaces has a curvature; (2) determining at least one target value for at least one treatment parameter for treating the precursor product in an H2-containing inert gas atmosphere; (3) treating the precursor product in the H2-containing atmosphere in accordance with the target value of the treatment parameter, thereby producing at least one precursor product of synthetic quartz glass with a second H2 content that is greater than the first H2 content; and (4) working at least part of at least one of the base surfaces of the treated precursor product, thereby producing at least one final lens shape.

    Abstract translation: 一种用于制造工作波长小于250nm的光学系统的具有增加的H 2含量的合成石英玻璃的至少一个透镜的方法。 该方法包括：（1）提供具有第一H 2含量的合成石英玻璃的至少一种前体产物，所述前体产物具有周向边界表面和两个彼此相对的基底表面，其中至少一个 基面具有曲率; （2）确定用于在含H2惰性气体气氛中处理前体产物的至少一个处理参数的至少一个目标值; （3）根据处理参数的目标值处理含H2气氛中的前体产物，从而产生具有大于第一H 2含量的第二H 2含量的合成石英玻璃的至少一种前体产物; 和（4）处理所处理的前体产品的至少一个基底表面的至少一部分，由此产生至少一个最终的透镜形状。

    Production process of synthetic quartz glass
    220.
    发明授权
    Production process of synthetic quartz glass 有权
    人造石英玻璃的生产工艺

    公开(公告)号：US07841211B2

    公开(公告)日：2010-11-30

    申请号：US10535935

    申请日：2003-11-28

    Applicant: Tatsuhiro Sato ,  Takahiro Kaitou ,  Akira Fujinoki ,  Toshiyuki Kato ,  Tohru Segawa ,  Nobumasa Yoshida

    Inventor： Tatsuhiro Sato ,  Takahiro Kaitou ,  Akira Fujinoki ,  Toshiyuki Kato ,  Tohru Segawa ,  Nobumasa Yoshida

    IPC: C03B20/00 ,  C03B19/14

    CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/20 ,  C03B2201/24 ,  C03C2201/02 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2201/24 ,  C03C2201/26

    Abstract: First of all, there is provided a production process of a synthetic quartz glass which has less impurity, has a high-temperature viscosity characteristic equal to or more than that of a natural quartz glass, and hardly deforms even in a high-temperature environment, and especially a production process of a highly heat resistant synthetic quartz glass which is free from the generation of bubbles and is dense. Secondly, there is provided a highly heat resistant synthetic quartz glass body which is easily obtained by the production process of the present invention, and especially a transparent or black quartz glass body which is free from the generation of bubbles, is dense, has high infrared absorption rate and emission rate, and has an extremely high effect for preventing diffusion of alkali metal. The process is a process of producing a highly heat resistant quartz glass body having an absorption coefficient at 245 nm of 0.05 cm−1 or more, and the silica porous body was subjected to a reduction treatment, followed by baking, thereby forming a dense glass body.

    Abstract translation: 首先，提供了杂质少，具有等于或高于天然石英玻璃的高温粘度特性的合成石英玻璃的制造方法，即使在高温环境下也几乎不变形， 特别是高度耐热的合成石英玻璃的生产过程，其不产生气泡并且致密。 其次，提供了通过本发明的制造方法容易获得的高耐热性合成石英玻璃体，特别是不产生气泡的透明或黑色石英玻璃体，具有高红外 吸收率和排放率，对防止碱金属的扩散具有极高的效果。 该方法是制造吸收系数在245nm为0.05cm -1以上的高耐热性石英玻璃体的工序，对二氧化硅多孔体进行还原处理，然后进行烧成，由此形成致密的玻璃 身体。

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