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1. 发明专利

JP2014019606A Method for drawing glass preform 有权
标题翻译：绘制玻璃预制的方法
公开(公告)号：JP2014019606A
公开(公告)日：2014-02-03
申请号：JP2012159452
申请日：2012-07-18
申请人： Shin Etsu Chem Co Ltd , 信越化学工業株式会社
发明人： OTSUSAKA TETSUYA
IPC分类号： C03B37/012
CPC分类号： C03B37/032 , C03B37/0124 , C03B37/0126
摘要： PROBLEM TO BE SOLVED: To provide a method for drawing a glass preform by which a glass rod having high outer diameter accuracy and high surface cleanliness can be obtained by drawing a glass preform having a large diameter, in particular a glass preform having a clear glass tapered part on one end of a straight cylindrical body part and a glass tapered part including an opaque glass part on the other end of the straight cylindrical body part.SOLUTION: A method for producing a glass rod having a smaller diameter by drawing a glass 12 preform having a large diameter is provided. In the method, when a glass preform having a clear glass tapered part on one end of a straight cylindrical body part and a glass tapered part including an opaque glass part 15 on the other end of the straight cylindrical body part is drawn, a suspending dummy 13 is welded to the front edge of the clear glass tapered part and is coupled to a feeding system before the drawing is performed, and the glass preform 12 is inserted into a heating furnace from the lower part of the glass preform and is drawn.
摘要翻译：要解决的问题：提供一种用于拉制玻璃预成型体的方法，通过拉伸具有大直径的玻璃预成型体，特别是具有透明玻璃的玻璃预制件，可以获得具有高外径精度和高表面清洁度的玻璃棒在直圆柱体部分的一端上的锥形部分和在直圆柱体部分的另一端上包括不透明玻璃部分的玻璃锥形部分。解决方案：一种通过拉伸玻璃12来制造具有较小直径的玻璃棒的方法提供具有大直径的预成型件。在该方法中，当在直圆筒体部分的一端具有透明玻璃锥形部分的玻璃预制件和在直圆柱体部分的另一端上包括不透明玻璃部分15的玻璃锥形部分被拉出时， 13被焊接到透明玻璃锥形部件的前边缘，并且在进行拉拔之前联接到进给系统，并且玻璃预制件12从玻璃预制件的下部插入加热炉中并被拉伸。

2. 发明专利

JP2009007242A Method of manufacturing optical fiber preform using high frequency induction thermal plasma torch 有权
标题翻译：使用高频感应热等离子体转换器制造光纤预制件的方法
公开(公告)号：JP2009007242A
公开(公告)日：2009-01-15
申请号：JP2008134585
申请日：2008-05-22
申请人： Shin Etsu Chem Co Ltd , 信越化学工業株式会社
发明人： OTSUSAKA TETSUYA
IPC分类号： C03B37/018 , C03B8/04
CPC分类号： C03B37/01823 , C03B37/01413 , C03B37/01426 , C03B2201/12 , C03B2207/80 , C03B2207/87 , Y02P40/57
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing an optical fiber preform suppressing a fluctuation of relative refractive index differences in the longitudinal direction of the optical fiber preform and improving an average value of the relative refractive index differences in the longitudinal direction. SOLUTION: When manufacturing an optical fiber preform by feeding at least glass raw material, dopant material and oxygen gas to a plasma torch to synthesize glass fine particles in plasma therein, and depositing the synthesized glass fine particles onto a glass rod which rotates and reciprocates relative to the plasma torch, the optical fiber preform having a suppressed fluctuation of the relative refractive index differences in the longitudinal direction and an improved average value of the relative refractive index differences in the longitudinal direction can be obtained by feeding the glass raw material on a forward way of the reciprocal movement and stopping to feed on a backward way. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种制造光纤预制棒的方法，其抑制光纤预制棒的纵向上的相对折射率差异的波动，并提高纵向的相对折射率差的平均值。解决方案：通过将至少玻璃原料，掺杂剂材料和氧气进料至等离子体焰炬来制造光纤预制件，以在其中合成等离子体中的玻璃微粒，并将合成的玻璃微粒沉积到旋转的玻璃棒上并且相对于等离子体焰炬往复运动，通过将玻璃原料进料，可获得具有抑制的纵向相对折射率差的波动和纵向相对折射率差的平均值的改善的光纤预制件以往往的方式前进，停止向后推进。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2006163194A Optical fiber, manufacturing method thereof and resin for covering optical fiber 审中-公开
标题翻译：光纤，其制造方法和用于覆盖光纤的树脂
公开(公告)号：JP2006163194A
公开(公告)日：2006-06-22
申请号：JP2004357221
申请日：2004-12-09
申请人： Shin Etsu Chem Co Ltd , 信越化学工業株式会社
发明人： OTSUSAKA TETSUYA
IPC分类号： G02B6/44
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber which easily diffuses and penetrates deuterium into the optical fiber at a low cost and has a high hydrogen-proof performance, and also to provide a manufacturing method of the optical fiber, and a resin used for covering the optical fiber. SOLUTION: The optical fiber is covered with the resin which releases deuterium. As such a resin, the resin in which deuterium is dissolved is cited. By force-feeding resin with a gas including deuterium, deuterium may be also dissolved into the resin. As the gas including deuterium, pure deuterium, mixture gas between deuterium and nitrogen or the like is cited. In such a case, the resin in which deuterium is preliminarily dissolved may be also used. Further, the optical fiber is doubly covered with resin and is set so that the secondary cover on the outer side has a lower diffusion coefficient than the primary cover on the inner side. As the secondary cover, the resin or metal which initially does not include deuterium may be used. A chemical reaction may be caused by ultraviolet irradiation etc. so that deuterium is released from the resin. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种以低成本容易地将氘扩散入光纤中并具有高耐氢性能的光纤，并且还提供了光纤的制造方法，以及用于覆盖光纤的树脂。
解决方案：光纤被释放氘的树脂覆盖。作为这样的树脂，引用溶解有氘的树脂。通过用包括氘的气体强制进料树脂，也可以将氘溶解到树脂中。作为包括氘气，纯氘气，氘和氮气之间的混合气体等的气体。在这种情况下，也可以使用预先溶解氘的树脂。此外，光纤被树脂双重覆盖，并且被设置为使得外侧的二次盖具有比内侧的主盖更低的扩散系数。作为第二覆盖物，可以使用最初不包括氘的树脂或金属。紫外线照射等可引起化学反应，使氘从树脂中释放出来。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2004339024A Method of manufacturing optical fiber preform and preform suspension instrument used for suspending the same 有权
公开(公告)号：JP2004339024A
公开(公告)日：2004-12-02
申请号：JP2003139141
申请日：2003-05-16
申请人： Shin Etsu Chem Co Ltd , 信越化学工業株式会社
发明人： SAKASHITA MITSUKUNI , OTSUSAKA TETSUYA , YOKOGAWA KIYOSHI
IPC分类号： C03B37/012 , C03B37/014
CPC分类号： C03B37/01486
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing an optical fiber preform by which connection of a suspension shaft suspended in a heating furnace to the optical fiber preform is easily and precisely carried out and a suspension instrument used for suspending the preform.
SOLUTION: In suspending the optical fiber preform in a heating furnace and heating, the optical fiber preform is suspended by preferably providing a plurality of projecting parts 23 or recessed parts on a a preform holding part 22 of the optical fiber preform 1, inserting the projecting parts 23 or recessed part into the preform suspension instrument 28 provided in the lower end of the suspension shaft 4 and putting a fixing member into the lower end of the projecting part 23 or the recessed part. A horizontal surface 26 making an angle of 90° with the center axis of the optical fiber preform is provided on the projecting parts 23 or the recessed part provided in the preform holding part 22 and is placed on the preform suspension instrument 28 with the fixing member 30 to enable the optical fiber preform to be suspended.
COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JP2004191947A Holey fiber drawing method 审中-公开
公开(公告)号：JP2004191947A
公开(公告)日：2004-07-08
申请号：JP2003388062
申请日：2003-11-18
申请人： Shin Etsu Chem Co Ltd , 信越化学工業株式会社
发明人： OTSUSAKA TETSUYA
IPC分类号： G02B6/032 , C03B37/027 , G02B6/00 , G02B6/20
CPC分类号： C03B37/02781 , C03B2203/14 , C03B2203/42 , C03B2205/08
摘要： PROBLEM TO BE SOLVED: To provide a holey fiber drawing method by which a hole diameter can easily be adjusted and the forms and diameters of the holes are stabilized in the longitudinal direction. SOLUTION: The method is provided of drawing an optical fiber through which a plurality of holes are formed over the whole length of the fiber in the axial direction. When heating, softening and drawing a glass base material 1 provided with a plurality of hollow holes 2 in the axial direction, a pressure difference between the pressure inside the hollow holes of the glass base material 1 and the atmospheric pressure is controlled. When controlling the pressure difference between the pressure inside the hollow holes of the glass base material and the atmospheric pressure, it is preferable to control the pressure difference by connecting a glass tube 3 having an inner diameter larger than the circumscribed circle diameter of the hollow hole part to the opening end of the glass base material provided with the plurality of hollow holes 2 in the axial direction, and providing the glass tube 3 with a pressure difference regulating means. COPYRIGHT: (C)2004,JPO&NCIPI

6. 发明专利

JP2014073946A Apparatus for drawing glass preform 有权
标题翻译：绘制玻璃预制件的装置
公开(公告)号：JP2014073946A
公开(公告)日：2014-04-24
申请号：JP2012223166
申请日：2012-10-05
申请人： Shin Etsu Chem Co Ltd , 信越化学工業株式会社
发明人： OTSUSAKA TETSUYA
IPC分类号： C03B37/012
CPC分类号： C03B37/032 , C03B37/01257 , C03B37/0126
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for drawing glass preform capable of safely drawing a glass preform without causing fracturing of a flange or scratches due to rubbing on a telescopic top chamber while preventing abrasion due to oxidation of a carbon-made muffle tube.SOLUTION: The apparatus for drawing a glass preform comprises a glass preform suspension device, a heating furnace, a telescopic top chamber consisting of a multi-layered cylinder and a top chamber suspension device, in which a flange is fitted to the upper part of the outermost tube of the multi-layered cylinder, and in which the top chamber suspension device has a cylinder supporting member which supports the flange from below and a cylinder pulling up member which pulls up the cylinder supporting member. It is preferable that the multi-layered cylinder be made of glass, that a top lid is placed on the top of the multi-layered cylinder and that the top lid be not fixed to the multi-layered cylinder. It is preferable that the glass preform suspension device have an XY table and that a gas seal plate which can slide in XY directions be placed on the top lid. Moreover, it is preferable that the glass preform suspension device and the top chamber suspension device be fitted to one carriage.
摘要翻译：要解决的问题：提供一种用于绘制能够安全地拉制玻璃预制件的玻璃预制件的设备，而不会引起凸缘的破裂或由于在可伸缩的顶部室上摩擦而产生的划痕，同时防止由于碳制马弗管的氧化而引起的磨损。解决方案：用于拉制玻璃预制件的装置包括玻璃预制悬浮装置，加热炉，由多层圆筒和顶室悬挂装置组成的可伸缩顶部腔室，其中凸缘装配到多层气缸的最外管，其中顶室悬挂装置具有从下方支撑凸缘的气缸支撑构件和将气缸支撑构件拉起的气缸拉起构件。优选的是，多层圆筒由玻璃制成，顶盖放置在多层圆筒的顶部上，顶盖不固定在多层圆筒上。玻璃预制件悬挂装置优选具有XY工作台，并且能够在XY方向上滑动的气体密封板被放置在顶盖上。此外，优选玻璃预制体悬挂装置和顶室悬挂装置安装在一个托架上。

7. 发明专利

JP2006193379A Method for drawing optical fiber 有权
标题翻译：绘制光纤的方法
公开(公告)号：JP2006193379A
公开(公告)日：2006-07-27
申请号：JP2005007630
申请日：2005-01-14
申请人： Shin Etsu Chem Co Ltd , 信越化学工業株式会社
发明人： OTSUSAKA TETSUYA
IPC分类号： C03B37/027 , G02B6/00
CPC分类号： C03B37/027
摘要： PROBLEM TO BE SOLVED: To provide a method for drawing an optical fiber which can suppress emission of radiant heat to the outside of the apparatus when a preform is heated and melted for drawing. SOLUTION: In a method for drawing an optical fiber comprising suspending a preform in a heating furnace and heating and melting the same, a means 7 for reflecting infrared light and/or visible light is provided on the upper end of the preform or a dummy 2 connected to the upper part thereof. The means 7 for reflecting infrared light and/or visible light include a mirror made of a refractory metal, a multilayer mirror. an evaporated film formed by evaporating a refractory metal onto the upper end surface of the dummy, and a multilayer mirror integrally molded with the upper end surface of the dummy. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决问题的方案：提供一种拉伸光纤的方法，当预成型件被加热熔化以便拉伸时，可以抑制辐射热到设备外部的辐射热。解决方案：在一种用于拉制光纤的方法中，包括将预成型件悬浮在加热炉中并加热和熔化预制件，用于反射红外光和/或可见光的装置7设置在预成型件的上端或连接到其上部的假人2。用于反射红外光和/或可见光的装置7包括由难熔金属制成的反射镜，多层反射镜。通过将难熔金属蒸发到虚拟物的上端表面上而形成的蒸发膜，以及与虚拟物的上端面一体模制的多层反射镜。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2005281025A Apparatus for manufacturing porous glass preform 有权
标题翻译：用于制造多孔玻璃预制件的装置
公开(公告)号：JP2005281025A
公开(公告)日：2005-10-13
申请号：JP2004094496
申请日：2004-03-29
申请人： Shin Etsu Chem Co Ltd , 信越化学工業株式会社
发明人： OTSUSAKA TETSUYA
IPC分类号： C03B8/04 , C03B37/012 , C03B37/014 , C03B37/018
CPC分类号： C03B37/01406 , C03B37/0144
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for manufacturing a porous glass preform in which the deposition of soot on the upper surface (ceiling) is prevented to suppress the stripping/ falling down from the upper surface.
SOLUTION: In the apparatus for manufacturing the porous glass preform 4 by depositing glass fine particles produced by the flame hydrolysis reaction of a gaseous starting material on a starting member 1 arranged vertically, a plurality of intake ports 5 are provided along the ceiling of the reaction chamber on the side wall of a reaction chamber provided with a burner 2 for deposition.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种制造多孔玻璃预制件的装置，其中防止在上表面（天花板）上沉积烟灰以抑制从上表面的剥离/掉落。解决方案：在通过在垂直布置的起始构件1上沉积通过气态起始材料的火焰水解反应产生的玻璃微粒的多孔玻璃预制棒4的制造装置中，沿天花板设置多个进气口5 在反应室的侧壁上设置有用于沉积的燃烧器2的反应室。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2004067459A Optical fiber preform, its manufacturing method, and optical fiber obtained by drawing the preform 有权
公开(公告)号：JP2004067459A
公开(公告)日：2004-03-04
申请号：JP2002230380
申请日：2002-08-07
申请人： Shin Etsu Chem Co Ltd , 信越化学工業株式会社
发明人： OTSUSAKA TETSUYA , INOUE MASARU , OYAMADA HIROSHI , ABE ATSUSHI , HIRASAWA HIDEO
IPC分类号： G02B6/00 , C03B37/012 , C03B37/014 , C03B37/018 , C03C13/04 , G02B6/02
CPC分类号： C03C13/045 , C03B37/01211 , C03B37/01291 , C03B37/01446 , C03B2201/12 , C03B2201/20 , C03B2201/28 , C03B2201/31 , C03B2203/22 , C03B2203/23 , G02B6/03694 , Y02P40/57
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber preform suited for the manufacture of an optical fiber suppressed in an increase in an OH peak near a wavelength of 1,385nm even when exposed to a hydrogen atmosphere, to provide a method for manufacturing the preform, and to provide an optical fiber obtained by drawing the preform. SOLUTION: The optical fiber preform is characterized in that in the regions inside and outside the region equivalent to twice the mode field diameter established when light at a wavelength of 1,385nm is propagated through an optical fiber obtained by drawing the preform, the maximum value Vo[log(poise)] of a viscosity distribution in the radial direction of the outside region at a temperature Ts is larger than 7.60 [log(poise)], äwherein Ts is the temperature at which the maximum value of a viscosity distribution in the radial direction of the inside region is 7.60 [log(poise)]}. COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2004002109A Preform manufacturing method and preform 有权
公开(公告)号：JP2004002109A
公开(公告)日：2004-01-08
申请号：JP2002160270
申请日：2002-05-31
申请人： Shin Etsu Chem Co Ltd , 信越化学工業株式会社
发明人： OYAMADA HIROSHI , INOUE MASARU , OTSUSAKA TETSUYA
IPC分类号： G02B6/00 , C03B37/014
CPC分类号： C03B37/0146 , C03B37/01466 , C03B37/0148
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a preform having a small content of hydroxyl groups. SOLUTION: The method is a manufacturing method for a preform, the base material for an optical fiber. The method comprises a porous glass preform forming step wherein the porous glass preform is formed by depositing fine glass particles, a container preparing step wherein a quartz glass container formed by heating quartz glass with an electric furnace is prepared, a gas introducing step wherein a dehydration reaction gas and an inert gas is introduced into the container, a heating step wherein the container into which the dehydration reaction gas and the inert gas is introduced is heated, and a dehydration sintering step wherein the porous glass preform is dehydrated and sintered by inserting the preform into the heated container. COPYRIGHT: (C)2004,JPO

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