公开(公告)号：US6003342A

公开(公告)日：1999-12-21

申请号：US906805

申请日：1997-08-06

申请人： Yoshinori Ishida ,  Toshihiro Mikami ,  Yukio Komura

发明人： Yoshinori Ishida ,  Toshihiro Mikami ,  Yukio Komura

IPC分类号： C03B37/014 ,  C03B37/023

CPC分类号： C03B37/01486 ,  C03B37/0142 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2207/06 ,  C03B2207/20 ,  C03B2207/36 ,  C03B2207/46 ,  C03B2207/54 ,  C03B2207/66 ,  C03B2207/70 ,  C03B2207/89 ,  Y02P40/57

摘要： Disclosed is a process of producing an optical fiber preform having a step of charging a feedstock gas in an oxygen-hydrogen burner via an electrode and hydrolyzing the same in an oxygen-hydrogen flame to produce particulates containing charged glass particulates and a step of blowing the charged particulates onto a target comprised of a seed rod or a soot body formed on the seed rod so as to cause them to deposit on the target and build up as a soot body. Preferably, the process includes the further step of reducing the magnitude of the charge of the particulates in the burner along with an increase of the diameter of the target which is formed. More preferably, the process also includes the further step of making the position facing the burner across the target an opposite polarity from the charging polarity of the particulates ejected from the burner so as to electrically attract the particulates ejected from the burner.

摘要翻译： 公开了一种制造光纤预制件的方法，该方法具有以下步骤：通过电极在氧 - 氢燃烧器中充入原料气体，并在氧 - 氢火焰中水解其，产生含有带电玻璃颗粒的颗粒， 带电颗粒物到由种子棒上形成的种子棒或烟炱体构成的靶上，以使它们沉积在目标物上并形成烟灰体。 优选地，该方法包括随着形成的靶的直径的增加而减小燃烧器中的微粒的电荷的大小的进一步的步骤。 更优选地，该方法还包括进一步的步骤，使得朝向燃烧器的位置跨过靶，与从燃烧器喷出的微粒的充电极性相反，从而电吸引从燃烧器喷出的微粒。

公开(公告)号：US5383946A

公开(公告)日：1995-01-24

申请号：US76963

申请日：1993-06-16

申请人： Yasuhiro Naka ,  Yukio Komura

发明人： Yasuhiro Naka ,  Yukio Komura

IPC分类号： C03B37/027 ,  C03C25/12 ,  C03B37/023

CPC分类号： C03B37/02718 ,  C03C25/12 ,  C03B2205/55 ,  Y02P40/57

摘要： In a heating furnace an optical fiber preform is heated and the optical fiber is drawn. The obtained optical fiber is cooled by a cooling gas in a cooling apparatus provided beneath the heating furnace, then a resin is coated on the outer circumference of this optical fiber by a resin coater. At this time, the blowing direction of the cooling gas blown out from the optical fiber inlet of the cooling apparatus is inclined exactly by a predetermined angle (.theta.) with respect to the axial line of the running optical fiber. As a result, even if no rise suppression gas is used, it is possible to prevent the cooling gas blown upward from the cooling apparatus from entering into the heating furnace and thereby to prevent the lowering of the quality of the optical fiber due to the adhesion of dust. Also, a cooling apparatus container enclosing the cooling apparatus is provided.

摘要翻译： 在加热炉中加热光纤预制件并拉伸光纤。 将得到的光纤在设置在加热炉下方的冷却装置中通过冷却气体冷却，然后用树脂涂布机在该光纤的外周涂布树脂。 此时，从冷却装置的光纤入口吹出的冷却气体的吹出方向相对于运行光纤的轴线精确地倾斜预定的角度（θ）。 结果，即使没有使用上升抑制气体，也可以防止从冷却装置向上吹出的冷却气体进入加热炉，从而防止由于粘附而使光纤的质量下降 的灰尘。 此外，设置有封闭冷却装置的冷却装置容器。

公开(公告)号：US06729162B2

公开(公告)日：2004-05-04

申请号：US09778107

申请日：2001-02-07

申请人： Tetsuro Wada ,  Masahide Kuwabara ,  Yukio Komura

发明人： Tetsuro Wada ,  Masahide Kuwabara ,  Yukio Komura

IPC分类号： C03B23057

CPC分类号： C03B37/01486 ,  C03B37/0124 ,  Y02P40/57

摘要： An electric furnace extending method and apparatus for an optical fiber glass body alignment when connecting the extension use body and pulling member and making it possible to immediately start the extension after the fusing of the connection portion. A centering mechanism for centering the free end portion of the body and member on the furnace center side is provided between the furnace pipe of the electric furnace and grips of the extension use glass body and between the furnace pipe and the pulling member. The free end portion is centered by this centering mechanism, then the gripped sides of the body and member are fixed, the front ends of the two free end portions are abutted and fused and bonded at the highest temperature portion inside the electric furnace, then the highest temperature portion is moved to the extension portion of the glass body side and the extending of the glass body is commenced.

摘要翻译： 一种电炉延伸方法和装置，用于在连接延伸使用体和牵引构件时使光纤玻璃体对准，并且使得可以在连接部分的熔合之后立即开始延伸。 在电炉的炉管和延伸用玻璃体的夹具之间以及炉管和拉件之间设置有用于使炉体中心侧的主体和部件的自由端部对中的定心机构。 自由端部由该定心机构居中，然后将主体和构件的夹持侧固定，两个自由端部的前端在电炉内部的最高温度部分抵接并熔接并粘合， 最高温度部分移动到玻璃体侧的延伸部分并开始玻璃体的延伸。

公开(公告)号：US06279353B1

公开(公告)日：2001-08-28

申请号：US09047373

申请日：1998-03-25

申请人： Tetsuro Wada ,  Masahide Kuwabara ,  Yukio Komura

发明人： Tetsuro Wada ,  Masahide Kuwabara ,  Yukio Komura

IPC分类号： C03B23057

CPC分类号： C03B37/01486 ,  C03B37/0124 ,  Y02P40/57

摘要： An electric furnace extending method and apparatus for an optical fiber glass body alignment when connecting the extension use body and pulling member and making it possible to immediately start the extension after the fusing of the connection portion. A centering mechanism for centering the frame and portion of the body and member on the furnace center side is provided between the furnace pipe of the electric furnaces and grips of the extension use glass body and between the furnace pipe and the pulling member. The free end portion is centered by this centering mechanism, then the gripped sides of the body and member are fixed, the front ends of the two free end portions are abutted and fused and bonded at the highest temperature portion inside the electric furnace, then the highest temperature portion is moved to the extension portion of the glass body side and the extending of the glass body is commenced.

摘要翻译： 一种电炉延伸方法和装置，用于在连接延伸使用体和牵引构件时使光纤玻璃体对准，并且使得可以在连接部分的熔合之后立即开始延伸。 在电炉的炉管和延伸用玻璃体的夹具之间以及炉管和拉构件之间设置有用于将炉体和炉体中心部分的炉体中心部分对准的定心机构。 自由端部由该定心机构居中，然后将主体和构件的夹持侧固定，两个自由端部的前端在电炉内部的最高温度部分抵接并熔接并粘合， 最高温度部分移动到玻璃体侧的延伸部分并开始玻璃体的延伸。

公开(公告)号：US6012305A

公开(公告)日：2000-01-11

申请号：US035905

申请日：1998-03-06

申请人： Masahide Kuwabara ,  Tetsuro Wada ,  Yukio Komura

发明人： Masahide Kuwabara ,  Tetsuro Wada ,  Yukio Komura

IPC分类号： G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  C03B37/02 ,  F27B14/18

CPC分类号： C03B37/01486 ,  C03B37/01406 ,  C03B37/0142 ,  C03B2207/50 ,  C03B2207/60 ,  C03B2207/66 ,  C03B2207/70

摘要： An apparatus for producing an optical fiber porous glass preform using the VAD method which can stably produce a high quality optical fiber porous glass preform, wherein a target bar is only rotatably supported by a chuck and is not pulled upward, a lower tip of a soot body is detected by a laser and a photodetector, and a core burner and a cladding burner is lowered in response to the result detected. A tip position detecting drive and burners are synchronizingly lowered while the deposit of porous glass grows at the lower portion of the target bar.

摘要翻译： 一种使用能够稳定地制造高质量的光纤多孔玻璃预制件的VAD方法制造光纤多孔玻璃预制件的装置，其中目标棒仅由卡盘可旋转地支撑并且不被向上拉动，烟灰的下端 身体被激光和光电检测器检测到，并且核心燃烧器和包层燃烧器响应于检测到的结果而降低。 尖端位置检测驱动器和燃烧器同时降低，同时多孔玻璃的沉积在目标棒的下部处生长。

公开(公告)号：US5449408A

公开(公告)日：1995-09-12

申请号：US90168

申请日：1993-07-22

申请人： Hisashi Koaizawa ,  Yukio Komura ,  Nobuaki Orita

发明人： Hisashi Koaizawa ,  Yukio Komura ,  Nobuaki Orita

IPC分类号： C03C25/12 ,  G02B6/44 ,  B05C3/15

CPC分类号： C03C25/12 ,  G02B6/443 ,  G02B6/4486 ,  Y10S118/18

摘要： An optical fiber coating apparatus which has a left holder unit 13a and a right holder unit 13b, in the left holding space 12a and right holding space 12b defined in those units are housed a second layer die 16a, 16b, a first layer die 17a, 17b, and a nipple 18a, 18b in a superposed state. The second layer die 16a, 16b and the first layer die 17a, 17b and the nipple 18a, 18b have block shaped planar outer contour shapes and the holding space 12a, 12b housing these also has a block shaped planar outer contour shape. Since the outer shapes of the dies 16a, 16b and 17a, 17b and the nipple 18a, 18b and the holding space 12a, 12b are all block shaped, it is easy to perform the axial alignment of the holes 30, 31, and 32 through which the optical fiber passes by pressing the die 16a, 16b, the die 17a, 17b, and the nipple 18a, 18b against the reference surfaces 19, 21 of the left holding space 12a.

摘要翻译： PCT No.PCT / JP92 / 01541 Sec。 371日期：1993年7月22日 102（e）日期1993年8月2日PCT 1992年11月25日PCT PCT。 公开号WO93 / 11081 日期：1993年6月10日。在这些单元中限定的左保持空间12a和右保持空间12b中具有左支架单元13a和右保持器单元13b的光纤涂覆装置容纳有第二层模具16a，16b ，叠置状态的第一层模具17a，17b和接头18a，18b。 第二层模具16a，16b和第一层模具17a，17b和接头18a，18b具有块状的平面外轮廓形状，并且容纳它们的保持空间12a，12b也具有块状的平面外轮廓形状。 由于模具16a，16b和17a，17b以及接头18a，18b和保持空间12a，12b的外形都是块形，所以容易进行孔30,31和32的轴向对准 光纤通过将模具16a，16b，模具17a，17b和接头18a，18b压靠在左侧保持空间12a的基准表面19,21上而通过。

公开(公告)号：US20090308106A1

公开(公告)日：2009-12-17

申请号：US11907873

申请日：2007-10-18

申请人： Tetsuro Wada ,  Masahide Kuwabara ,  Yukio Komura

发明人： Tetsuro Wada ,  Masahide Kuwabara ,  Yukio Komura

IPC分类号： C03B37/02

CPC分类号： C03B37/01486 ,  C03B37/0124 ,  Y02P40/57

摘要： An electric furnace extending method and apparatus for an optical fiber glass body alignment when connecting the extension use body and pulling member and making it possible to immediately start the extension after the fusing of the connection portion. A centering mechanism for centering the free end portion of the body and member on the furnace center side is provided between the furnace pipe of the electric furnace and grips of the extension use glass body and between the furnace pipe and the pulling member. The free end portion is centered by this centering mechanism, then the gripped sides of the body and member are fixed, the front ends of the two free end portions are abutted and fused and bonded at the highest temperature portion inside the electric furnace, then the highest temperature portion is moved to the extension portion of the glass body side and the extending of the glass body is commenced.

摘要翻译： 一种电炉延伸方法和装置，用于在连接延伸使用体和牵引构件时使光纤玻璃体对准，并且使得可以在连接部分的熔合之后立即开始延伸。 在电炉的炉管和延伸用玻璃体的夹具之间以及炉管和拉件之间设置有用于使炉体中心侧的主体和部件的自由端部对中的定心机构。 自由端部由该定心机构居中，然后将主体和构件的夹持侧固定，两个自由端部的前端在电炉内部的最高温度部分抵接并熔接并粘合， 最高温度部分移动到玻璃体侧的延伸部分并开始玻璃体的延伸。