公开(公告)号：US08322165B2

公开(公告)日：2012-12-04

申请号：US12189440

申请日：2008-08-11

申请人： Tetsuya Otosaka ,  Yoshiaki Shimizu

发明人： Tetsuya Otosaka ,  Yoshiaki Shimizu

IPC分类号： C03B37/029

CPC分类号： C03B37/029 ,  C03B2205/10 ,  C03B2205/81

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20120186302A1

公开(公告)日：2012-07-26

申请号：US13357619

申请日：2012-01-25

申请人： Tetsuya OTOSAKA

发明人： Tetsuya OTOSAKA

IPC分类号： C03B29/00

CPC分类号： C03B23/043 ,  C03B37/01237 ,  C03B37/01257

摘要： Provided is a glass lathe that processes a glass member by heating the glass member with a burner, wherein a reflector that reflects electromagnetic waves is arranged around a portion of the glass member to be heated. The reflector preferably has a spherical surface with a portion removed therefrom, and may be formed of a mirror surface finishing agent for SUS, aluminum, or an aluminum alloy. An inner surface of the reflector is preferably covered by gold, platinum, or rhodium, and an outer surface of the reflector is preferably processed to improve thermal emittance, by applying an infrared light emitting coating thereto.

摘要翻译： 提供了一种玻璃车床，其通过用燃烧器加热玻璃构件来处理玻璃构件，其中反射电磁波的反射器被布置在待加热的玻璃构件的一部分周围。 反射器优选具有从其中去除的部分的球形表面，并且可以由用于SUS，铝或铝合金的镜面整理剂形成。 反射器的内表面优选被金，铂或铑覆盖，并且反射器的外表面优选通过向其上施加红外发光涂层而被加工以提高热发射率。

公开(公告)号：US20120060560A1

公开(公告)日：2012-03-15

申请号：US13226656

申请日：2011-09-07

申请人： Tetsuya Otosaka

发明人： Tetsuya Otosaka

IPC分类号： C03B37/07 ,  C03B37/025

CPC分类号： C03B37/01242

摘要： The present invention provides an apparatus and a method for fabricating a glass rod capable of suppressing a diameter fluctuation of a drawn glass rod even in a case of a relatively large diameter reduction ratio between a glass preform and a glass rod, such as 60 to 95%. The diameter (D) of the glass preform for determining the ratio from a measured diameter data is acquired, the measured diameter data is obtained by measuring a diameter of the glass preform before being drawn along a longitudinal direction of the preform, and the feed speed (V1) is determined so that the feed speed (V1) varies depending on a fluctuation of the measured diameter data in the longitudinal direction.

摘要翻译： 本发明提供一种用于制造玻璃棒的装置和方法，其能够抑制拉制玻璃棒的直径波动，即使在玻璃预制棒和玻璃棒之间的直径减小比例相对较大的情况下，例如60至95 ％。 获得用于根据测量直径数据确定比率的玻璃预制件的直径（D），通过在沿着预成型件的纵向拉伸之前测量玻璃预制件的直径并且将进给速度 （V1）被确定为使得进给速度（V1）根据测量的直径数据在纵向方向上的波动而变化。

公开(公告)号：US20120057834A1

公开(公告)日：2012-03-08

申请号：US13226110

申请日：2011-09-06

申请人： Hiroshi Oyamada ,  Tetsuya Otosaka

发明人： Hiroshi Oyamada ,  Tetsuya Otosaka

IPC分类号： G02B6/036

CPC分类号： G02B6/028 ,  C03B37/01413 ,  C03B2201/12 ,  C03B2203/23 ,  G02B6/0365

摘要： An optical fiber capable of suppressing an increase of a transmission loss after exposure of the optical fiber to hydrogen or deuterium is provided. The optical fiber has a core region, an inner cladding region surrounding the core region, a trench region surrounding the inner cladding region, an outer cladding region surrounding the trench region, and a refractive index varying region arranged between the inner cladding region and the trench region, the refractive index varying region having a refractive index gradually increasing from the trench region to the inner cladding region.

摘要翻译： 提供了一种能够抑制光纤暴露于氢或氘之后的传输损失增加的光纤。 光纤具有芯区域，围绕芯区域的内包层区域，围绕内包层区域的沟槽区域，围绕沟槽区域的外包层区域和布置在内包层区域和沟槽之间的折射率变化区域 区域，折射率变化区域具有从沟槽区域到内包层区域逐渐增加的折射率。

公开(公告)号：US20070209397A1

公开(公告)日：2007-09-13

申请号：US10594529

申请日：2005-03-07

申请人： Tetsuya Otosaka

发明人： Tetsuya Otosaka

IPC分类号： C03B19/00

CPC分类号： C03B37/01406 ,  C03B37/0144

摘要： There is provided a manufacturing apparatus of a porous glass base material which can prevent soot from being formed on an upper surface (ceiling) of the process chamber, and reduce the amount of soot that comes off the upper surface and falls. A manufacturing apparatus of a porous glass base material 4 deposits glass particles produced by subjecting a material gas to flame hydrolysis, onto a starting member 1 placed vertically. Here, a plurality of gas inlets 5 are provided in one or more lateral walls of a process chamber including a burner 2 for the deposition therein, in upper portions of the lateral walls and along a ceiling of the process chamber.

摘要翻译： 提供了一种能够防止烟灰形成在处理室的上表面（天花板）上的多孔玻璃基材的制造装置，并且减少了从上表面掉落的烟灰量。 多孔玻璃基材4的制造装置将通过使材料气体进行火焰水解而制造的玻璃粒子沉积到垂直放置的起始构件1上。 这里，多个气体入口5设置在包括用于沉积在其中的燃烧器2的处理室的一个或多个侧壁中，在侧壁的上部和处理室的天花板中。

公开(公告)号：US08820121B2

公开(公告)日：2014-09-02

申请号：US13042352

申请日：2011-03-07

申请人： Tetsuya Otosaka

发明人： Tetsuya Otosaka

IPC分类号： C03B37/018 ,  C03B37/014 ,  C03B37/012

CPC分类号： C03B37/01446 ,  C03B37/01237 ,  C03B37/0124 ,  C03B37/01426 ,  C03B37/0146 ,  C03B37/01466 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/24 ,  C03B2203/26 ,  C03B2207/50

摘要： Provided is a method of manufacturing an optical fiber base material having at least four layer including a core, a first cladding, a second cladding containing fluorine, and a third cladding. The manufacturing method comprises preparing a starting base material that includes the core and the first cladding; forming a porous intermediate glass base material by supplying glass raw material and oxygen to a high-frequency induction thermal plasma torch to synthesize glass fine particles that are then deposited on a surface of the starting base material; forming an intermediate glass base material that includes the core, the first cladding, and the second cladding containing fluorine, by heating and vitrifying the porous intermediate glass base material in an atmosphere containing fluorine; and providing the third cladding on the outer surface of the intermediate glass base material.

摘要翻译： 提供一种制造具有至少四层的光纤基材的方法，该层包括芯，第一包层，含氟的第二包层和第三包层。 制造方法包括制备包括芯和第一包层的起始基材; 通过向高频感应热等离子体焰炬提供玻璃原料和氧气来合成玻璃微粒，形成多孔中间玻璃基材，然后沉积在起始基材的表面上; 通过在含氟气氛中加热和玻璃化多孔中间玻璃基材，形成包含芯，第一包层和含氟的第二包层的中间玻璃基材; 以及在中间玻璃基材的外表面上设置第三包层。

公开(公告)号：US20120222452A1

公开(公告)日：2012-09-06

申请号：US13409073

申请日：2012-02-29

申请人： Tetsuya OTOSAKA

发明人： Tetsuya OTOSAKA

IPC分类号： C03B37/03 ,  C03B37/025

CPC分类号： C03B37/01242 ,  C03B23/047 ,  C03B23/207 ,  C03B37/0126

摘要： A method of elongating a glass base material to obtain a glass rod having a smaller diameter, using a glass base material elongating apparatus including a feeder at least for the glass base material, a heating furnace, and an elongating mechanism of the glass base material below the heating furnace, is such that a horizontal plane position measuring unit of the glass base material is provided inside or near the heating furnace, the feeder has a glass base material horizontal plane position adjusting unit, and the elongating mechanism has three or more sets of elongating rollers capable of switching between grasping and releasing for keeping the position of the glass rod in the horizontal plane to be constant, and the glass base material is elongated with the position thereof in the horizontal plane kept as targeted by controlling the glass base material horizontal plane position adjusting unit.

摘要翻译： 使用玻璃基材延伸装置，至少包括用于玻璃基材的进料器，加热炉和玻璃基材的延伸机构，使玻璃基材伸长以获得直径较小的玻璃棒的方法， 所述加热炉使​​得所述玻璃基材的水平面位置测量单元设置在所述加热炉的内部或附近，所述进料器具有玻璃基材水平面位置调整单元，所述拉伸机构具有三组以上 拉伸辊能够在抓取和释放之间切换，以保持玻璃棒在水平面中的位置恒定，并且玻璃基材在水平面上的位置被拉长，通过控制玻璃基材水平 平面位置调整单元。

公开(公告)号：US20120055198A1

公开(公告)日：2012-03-08

申请号：US13226609

申请日：2011-09-07

申请人： Tetsuya Otosaka

发明人： Tetsuya Otosaka

IPC分类号： C03B37/012 ,  C03B37/07

CPC分类号： C03B37/01242

摘要： The present invention provides a apparatus and a method for fabricating a glass rod capable of suppressing a diameter fluctuation of a drawn glass rod even in case of a relatively large diameter reduction ratio between a glass preform and a glass rod, such as 60 to 95%. A feed speed V1 of the glass preform is set to a constant value, a diameter D of the glass preform is acquired for determining the drawing speed V2 from a measured diameter data of the glass preform before being drawn at a diameter acquisition position defined with respect to a reference position of the furnace, and a distance from the reference position to the diameter acquisition position is defined so as to vary depending on a diameter fluctuation of the glass preform before being drawn in a longitudinal direction thereof.

摘要翻译： 本发明提供一种制造玻璃棒的装置和方法，其能够抑制玻璃棒的直径波动，即使在玻璃预制棒和玻璃棒之间的直径减小比例相对较大的情况下，例如60至95％ 。 将玻璃预制件的进给速度V1设定为恒定值，从获得的玻璃预制件的直径数据中，根据从玻璃预制件的测量直径数据确定拉伸速度V2，在直径取得位置 限定到炉的参考位置，并且从参考位置到直径获取位置的距离被限定为根据在其纵向方向上拉伸之前的玻璃预制件的直径波动而变化。

公开(公告)号：US20110016926A1

公开(公告)日：2011-01-27

申请号：US12843699

申请日：2010-07-26

申请人： Tetsuya OTOSAKA

发明人： Tetsuya OTOSAKA

IPC分类号： C03B37/018

CPC分类号： C03B37/01426 ,  C03B2201/12 ,  Y02P40/57

摘要： A method of manufacturing an optical fiber preform by depositing glass fine particles onto a surface of a glass rod while the glass rod is reciprocated relative to a plasma torch, including: moving the glass rod in a first direction relative to the plasma torch while the plasma torch is applied to the glass rod and supplied at least with a dopant material and a glass material to deposit the glass fine particles onto the surface of the glass rod, in such a manner that a plasma power is set higher during a first time interval starting from a beginning of the movement of the glass rod in the first direction than during a second time interval starting from an end of the first time interval; and moving the glass rod in a second direction relative to the plasma torch, where the second direction is opposite to the first direction.

摘要翻译： 一种通过在玻璃棒相对于等离子体焰炬往复运动的同时将玻璃微粒沉积到玻璃棒的表面上来制造光纤预制件的方法，包括：使玻璃棒相对于等离子体焰炬沿第一方向移动，而等离子体 将手电筒施加到玻璃棒上并至少提供掺杂剂材料和玻璃材料，以将玻璃微粒沉积到玻璃棒的表面上，使得等离子体功率在第一时间间隔开始时设定得更高 从所述玻璃棒在所述第一方向上的运动的开始比从所述第一时间间隔的结束开始的第二时间间隔开始; 并且相对于等离子体焰炬在第二方向上移动玻璃棒，其中第二方向与第一方向相反。

公开(公告)号：US20080192239A1

公开(公告)日：2008-08-14

申请号：US10593875

申请日：2005-03-18

申请人： Tetsuya Otosaka

发明人： Tetsuya Otosaka

IPC分类号： G01N21/00

CPC分类号： G01M11/37 ,  G01B11/08 ,  G01B11/2408 ,  G01M11/088

摘要： There is provided a measurement method of non-circularity of a core part of an optical fiber base material and an apparatus therefor, which can accurately and easily measure non-circularity of the core part, regardless of a refractive index difference between a core and a clad and an interval between a light projector and a photoreceiver. The method for measuring non-circularity of a core part of an optical fiber base material having the core part and a clad part includes the steps of: immersing the optical fiber base material in liquid having a refractive index substantially equal to that of the clad part of the optical fiber base material; irradiating parallel light from a side face of the optical fiber base material to measure intensity distribution of transmitted light; measuring a width of a dark space caused by light passing the core part on intensity distribution to obtain a relative value for a core diameter; rotating the optical fiber base material to further obtain the relative value for the core diameter at plural points for a circumferential direction; and obtaining non-circularity of the core part based on the obtained plurality of relative values for the core diameter.

摘要翻译： 提供了一种光纤母材的芯部的非圆度的测量方法及其装置，其可以精确且容易地测量芯部的非圆度，而不管芯和芯之间的折射率差如何 包层和光投影仪与光接收器之间的间隔。 用于测量具有芯部和包层部的光纤基材的芯部的非圆度的方法包括以下步骤：将光纤基材浸入具有与包层部分的折射率基本相同的折射率的液体中 的光纤基材; 照射来自光纤基材的侧面的平行光，以测量透射光的强度分布; 测量通过芯部分的强度分布的光引起的暗空间的宽度，以获得芯直径的相对值; 旋转所述光纤基材以进一步获得围绕圆周方向的多个点处的芯径的相对值; 并且基于所获得的多个芯径的相对值，获得芯部的非圆度。