公开(公告)号：US20160185057A1

公开(公告)日：2016-06-30

申请号：US14801284

申请日：2015-07-16

申请人： FUJIKURA LTD.

发明人： Kenji OKADA

IPC分类号： B29D11/00

CPC分类号： C03B37/0253 ,  B29D11/00721 ,  B29D11/00875 ,  C03B37/032 ,  C03C25/1055 ,  C03C25/106 ,  Y02P40/57

摘要： A method of manufacturing an optical fiber including drawing an optical fiber preform and forming a bare optical fiber, disposing a coating layer formed of a resin on an outer circumference of the bare optical fiber, and curing the coating layer and obtaining an optical fiber is provided. A direction of the bare optical fiber is changed by a direction changer in any position from drawing the optical fiber to disposing the coating layer. In a flow rate of a fluid from a blowout port, an average flow rate or a highest flow rate in an inlet wire portion and an outlet wire portion is higher than a lowest flow rate of the fluid in an intermediate portion.

摘要翻译： 一种制造光纤的方法，包括拉制光纤预制件并形成裸光纤，在裸光纤的外周设置由树脂形成的涂层，并固化涂层并获得光纤 。 裸线光纤的方向通过方向转换器在从拉丝光纤到布置涂层的任何位置改变。 在来自吹出口的流体的流速中，入口线部分和出口线部分中的平均流速或最高流速高于中间部分中流体的最低流速。

公开(公告)号：US20150321945A1

公开(公告)日：2015-11-12

申请号：US14802083

申请日：2015-07-17

申请人： Fujikura Ltd.

发明人： Kenji OKADA

IPC分类号： C03B37/027 ,  C03C25/10 ,  C03B37/029

CPC分类号： C03B37/02736 ,  C03B37/029 ,  C03B2205/80 ,  C03C25/1055 ,  C03C25/12 ,  Y02P40/57

摘要： An optical fiber manufacturing apparatus includes: a cylindrical shield pipe that is provided above a drawing furnace, and forms a space continuous with the heating space in a vertical direction; a sending rod that has a lower end attached to an optical fiber preform and a lower portion disposed inside the shield pipe, and is configured to insert the optical fiber preform into a heating space of the drawing furnace in the vertical direction; an alignment mechanism that is configured to move the sending rod in a horizontal direction; an inner sealing body that is attached to the lower portion of the sending rod; and an outer sealing body that is mounted on the inner sealing body, is configured to move in the horizontal direction with respect to the inner sealing body, and is spaced apart from the sending rod.

摘要翻译： 一种光纤制造装置，包括：筒状屏蔽管，其设置在拉拔炉的上方，与上述加热空间的上下方向形成空间; 发送杆，其具有连接到光纤预制棒的下端和设置在所述屏蔽管内的下部，并且被配置为将所述光纤预制件沿垂直方向插入到所述拉制炉的加热空间中; 对准机构，其构造成在所述水平方向上移动所述送出杆; 内密封体，其安装在发送杆的下部; 并且安装在所述内密封体上的外密封体被构造成相对于所述内密封体在水平方向上移动，并且与所述送出杆间隔开。

公开(公告)号：US20130061637A1

公开(公告)日：2013-03-14

申请号：US13669682

申请日：2012-11-06

申请人： Fujikura Ltd.

发明人： Kenji OKADA

IPC分类号： C03B37/027

CPC分类号： C03B37/027 ,  C03B37/01211 ,  C03B37/01251 ,  C03B37/02772 ,  C03B2205/12 ,  C03B2205/40 ,  C03B2205/45 ,  Y02P40/57

摘要： An optical fiber preform that is used in a method in which a core rod that forms a core is inserted into a quartz tube that forms a cladding, and at the same time as they are fiber-drawn, the quartz tube and the core rod are formed into a single body, includes: a tapered portion that is formed by grinding an outer circumferential portion of a distal end portion of the quartz tube into a tapered shape; and a conical portion that is formed by welding a dummy tube that has substantially the same outer diameter as the outer diameter of a distal end portion of the tapered portion to the distal end portion of the tapered portion, and by applying heat to the dummy tube and stretching out the dummy tube, where the core rod is inserted inside the quartz tube.

摘要翻译： 用于将形成芯的芯棒插入形成包层的石英管中的方法中使用的光纤预制棒，并且在被纤维拉伸的同时，石英管和芯棒是 形成为单体，包括：通过将石英管的前端部的外周部研磨为锥形而形成的锥形部， 以及圆锥形部分，其通过将具有与锥形部分的远端部分的外径基本相同的外径的虚拟管焊接到锥形部分的远端部分并且通过将热量施加到虚拟管 并将芯棒插入石英管内部延伸出虚拟管。

公开(公告)号：US20180099893A1

公开(公告)日：2018-04-12

申请号：US15837289

申请日：2017-12-11

申请人： FUJIKURA LTD.

发明人： Kenji OKADA

IPC分类号： C03B37/025 ,  G02B6/02 ,  C03B37/03 ,  C03C25/12

CPC分类号： C03B37/0253 ,  C03B37/032 ,  C03B2205/42 ,  C03C25/12 ,  Y02P40/57

摘要： A control device which is used in a manufacturing apparatus of an optical fiber, the manufacturing apparatus including a drawing unit and a coating unit. The control device includes: one or a plurality of non-contact holding portions which hold the bare optical fiber at any position between the drawing unit and the coating unit; a position detection unit; and a control unit which controls a flow rate of a fluid introduced into the non-contact holding portion on the basis of the floating position detected by the position detection unit. The non-contact holding portion comprises a guide groove. The control unit detects the floating position of the bare optical fiber at at least one of the non-contact holding portions, compares the detected floating position with a predetermined reference floating position, and controls a flow rate of the fluid introduced into the non-contact holding portions.

公开(公告)号：US20170113961A1

公开(公告)日：2017-04-27

申请号：US15398784

申请日：2017-01-05

申请人： FUJIKURA LTD.

发明人： Kenji OKADA

IPC分类号： C03B37/025 ,  C03C25/10 ,  C03B37/03

CPC分类号： C03B37/0253 ,  B29D11/00721 ,  B29D11/00875 ,  C03B37/032 ,  C03C25/1055 ,  C03C25/106 ,  Y02P40/57

摘要： An apparatus for manufacturing an optical fiber, including a drawing portion, a coating portion, and a curing portion; wherein a direction changer which changes a direction of the bare optical fiber is disposed in any position from the drawing portion to the coating portion, the direction changer includes a guide groove which guides the bare optical fiber, a blowout port of a fluid which floats the bare optical fiber wired along the guide groove is formed along the guide groove in the guide groove, and an average flow rate or a highest flow rate of the fluid in an inlet wire portion of the bare optical fiber to the guide groove, and an outlet wire portion from the guide groove is faster than a lowest flow rate of the fluid in an intermediate portion between the inlet wire portion and the outlet wire portion in the blowout port.

公开(公告)号：US20160362326A1

公开(公告)日：2016-12-15

申请号：US15175222

申请日：2016-06-07

申请人： FUJIKURA LTD.

发明人： Kenji OKADA

IPC分类号： C03B37/025 ,  C03B37/03 ,  C03C25/10 ,  G02B6/02

CPC分类号： C03B37/0253 ,  C03B37/032 ,  C03B2205/42 ,  C03C25/12 ,  G02B6/02395 ,  Y02P40/57

摘要： A manufacturing method of an optical fiber includes drawing an optical fiber preform and forming a bare optical fiber, coating an outer circumference of the bare optical fiber with a coating layer including a resin, and holding the bare optical fiber using one or a plurality of non-contact holding portions at any position between a position where the bare optical fiber is formed and a position where the coating is performed. The non-contact holding portion includes a guide groove which guides the bare optical fiber, and an internal space portion into which a fluid is introduced from an outside, in the guide groove, and an outlet through which the fluid in the internal space portion is blown to float the bare optical fiber in the guide groove is formed.

摘要翻译： 光纤的制造方法包括：拉制光纤预制件并形成裸光纤，用包含树脂的涂层涂覆裸光纤的外周，并使用一个或多个非光纤保持裸光纤， - 在形成裸光纤的位置和执行涂层的位置之间的任何位置处接触保持部分。 非接触保持部包括引导槽，引导槽将裸光纤引导槽和引导槽内的从外部引入流体的内部空间部分和内部空间部分中的流体流出的出口 吹出，使裸光纤浮起，形成导槽。

公开(公告)号：US20130118208A1

公开(公告)日：2013-05-16

申请号：US13706587

申请日：2012-12-06

申请人： Fujikura Ltd.

发明人： Kenji OKADA

IPC分类号： C03C25/10

CPC分类号： C03C25/1065 ,  C03B37/02718 ,  C03B37/032 ,  C03B2205/06 ,  C03C25/105

摘要： This optical fiber manufacturing method includes: forming a bare optical fiber by drawing an optical fiber preform; forming an intermediate optical fiber by providing a coating layer, which is formed of resin, on the outer periphery of the bare optical fiber; performing primary curing of the coating layer which forms the intermediate optical fiber; pressing the outer periphery of the intermediate optical fiber; and performing secondary curing of the pressed coating layer of the intermediate optical fiber.

摘要翻译： 该光纤制造方法包括：通过拉伸光纤预制棒来形成裸光纤; 通过在裸光纤的外周设置由树脂形成的涂层来形成中间光纤; 进行形成中间光纤的涂层的一次固化; 按压中间光纤的外周; 并进行中间光纤的压制被覆层的二次固化。

公开(公告)号：US20160347646A1

公开(公告)日：2016-12-01

申请号：US15147180

申请日：2016-05-05

申请人： FUJIKURA LTD.

发明人： Kenji OKADA

IPC分类号： C03B37/03 ,  C03C25/10 ,  G02B6/02

CPC分类号： C03B37/032 ,  C03B37/0253 ,  C03B2205/40 ,  C03C25/106 ,  G02B6/00 ,  G02B6/02395

摘要： A manufacturing method of an optical fiber includes drawing an optical fiber preform and forming a bare optical fiber, coating an outer circumference of the bare optical fiber with a coating layer including a resin, curing the coating layer and forming an optical fiber by curing the coating layer, and changing a direction of the bare optical fiber using one or a plurality of direction changing devices at any position between a position where the bare optical fiber is formed and a position where the coating is performed. The direction changing device includes a guide groove which guides the bare optical fiber, and an internal space portion into which a fluid is introduced from an outside, and in the guide groove, an outlet through which the fluid in the internal space portion is blown to float the bare optical fiber in the guide groove is formed.

摘要翻译： 光纤的制造方法包括：拉制光纤预制件并形成裸光纤，用包含树脂的涂层涂覆裸光纤的外周，固化涂层，并通过固化涂层形成光纤 并且使用一个或多个方向改变装置在裸片光纤的形成位置和进行涂层的位置之间的任何位置改变裸光纤的方向。 方向改变装置包括引导裸光纤的引导槽和从外部引入流体的内部空间部分，并且在引导槽中，将内部空间部分中的流体吹过的出口 浮动裸光纤在导槽中形成。

公开(公告)号：US20150285994A1

公开(公告)日：2015-10-08

申请号：US14679402

申请日：2015-04-06

申请人： Fujikura Ltd.

发明人： Kenji OKADA

IPC分类号： G02B6/02 ,  C03B37/027 ,  C03C25/10 ,  C03B37/025

CPC分类号： G02B6/02285 ,  C03B37/0253 ,  C03B37/02718 ,  C03B37/02736 ,  C03B37/02745 ,  C03B37/029 ,  C03B2203/19 ,  C03B2203/36 ,  C03B2205/06 ,  C03B2205/46 ,  C03B2205/62 ,  C03B2205/70 ,  C03C25/104

摘要： A manufacturing method of an optical fiber includes: heating and melting an optical fiber preform; drawing a bare optical fiber from a heated and melted portion of the optical fiber preform; cooling the bare optical fiber drawn from the optical fiber preform; forming a coating layer on a surface of the cooled bare optical fiber; obtaining an optical fiber by curing the coating layer; adding torsion to the optical fiber by transmitting the torsion up to the heated and melted portion through the bare optical fiber from the optical fiber so that spin is applied to the bare optical fiber; and winding the optical fiber.

摘要翻译： 光纤的制造方法包括：加热和熔化光纤预制棒; 从光纤预制棒的加热和熔化部分绘制裸光纤; 冷却从光纤预制棒拉出的裸光纤; 在冷却的裸光纤的表面上形成涂层; 通过固化涂层获得光纤; 通过从光纤通过裸光纤将扭转传递到加热和熔化的部分，从而向光纤增加扭转，使得自旋施加到裸光纤; 并缠绕光纤。

公开(公告)号：US20180305239A1

公开(公告)日：2018-10-25

申请号：US16010968

申请日：2018-06-18

申请人： FUJIKURA LTD.

发明人： Kenji OKADA

IPC分类号： C03B37/025 ,  C03B37/027 ,  C03B37/03 ,  G02B6/02 ,  C03C25/106

CPC分类号： C03B37/0253 ,  C03B37/02718 ,  C03B37/03 ,  C03C25/106 ,  C03C2218/32 ,  G02B6/00 ,  G02B6/02395 ,  Y02P40/57

摘要： A method of manufacturing an optical fiber of the invention includes: preparing a direction changer; drawing a bare optical fiber from an optical fiber preform, thereby forming the bare optical fiber; providing a coated layer made of a resin on a periphery of the bare optical fiber; obtaining an optical fiber by curing the coated layer; changing a direction of the bare optical fiber by use of the direction changer; measuring a drawing velocity of the optical fiber; and adjusting a length of the bare optical fiber from a drawing unit to a coating unit by controlling a position of the direction changer based on a measurement value of the drawing velocity, the drawing unit forming the bare optical fiber, the coating unit providing the coated layer on the periphery of the bare optical fiber.