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公开(公告)号：EP1243568A4
公开(公告)日：2006-07-26
申请号：EP00929883
申请日：2000-05-26
IPC分类号： C03B37/027 , C03B37/029 , C03B37/12
CPC分类号： C03B37/02718 , C03B37/029 , C03B2205/40 , C03B2205/56 , C03B2205/90
摘要： A fiber drawing device (1) has a fiber drawing furnace (11), a heating furnace (21) and a resin curing unit (31). An He gas supply passage (15) from a supply unit (14) is connected to a furnace tube (13) of the fiber drawing furnace (11), for supplying an He gas. An optical fiber (3) heat-drawn in the fiber drawing furnace (11) is fed to a heating furnace (21), and a preset portion of the optical fiber (3) is gradually cooled at a preset cooling speed. An N2 gas supply passage (25) from an N2 gas supply unit (24) is connected to a furnace tube (23) of the heating furnace (21), for supplying an N2 gas. Later, a UV resin (39) is applied to the optical fiber (3) by a coating die (38) and then is cured at the resin curing unit (31) to produce an optical fiber strand (4).
摘要翻译： 拉制装置1具有拉丝炉11，加热炉21和树脂固化部31.拉拔炉11具有马弗管13，从He气体供给部14连接He气体供给路15， 供应他天然气。 通过拉丝炉11加热而拉制的光纤3被送入加热炉21，由此光纤3的预定部分以预定的冷却速度退火。 加热炉21具有马弗管23，来自N2气供给部24的N2气体供给路25连接在该马弗管23上，供给N2气。 此后，通过涂布模具38将光纤3涂覆有UV树脂39，并且在树脂固化部分31中固化UV树脂39，从而形成涂覆的光纤4。
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公开(公告)号：EP1632460A4
公开(公告)日：2011-12-28
申请号：EP04733662
申请日：2004-05-18
发明人： OHGA YUICHI , ONISHI MASASHI , KASUU OSAMU , KATO SHUICHIRO , ADACHI TORU , SASAKI TAKASHI , HIRANO MASAAKI
IPC分类号： C03B37/012 , C03B37/023 , C03B37/027 , G02B6/00 , G02B6/02
CPC分类号： C03B37/01228 , C03B37/01211 , C03B37/01231 , C03B37/01248 , C03B37/02754 , Y02P40/57
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公开(公告)号：EP1394124A4
公开(公告)日：2007-03-07
申请号：EP03701720
申请日：2003-01-15
发明人： TANADA HARUYOSHI , NAKAMURA MOTONORI , OHGA YUICHI , ENOMOTO TADASHI , HIRANO MASAAKI , ONISHI MASASHI , SOMA KAZUYUKI , MORIYA TOMOMI , YANADA EIJI
IPC分类号： C03B23/045 , C03B19/14 , C03B23/047 , C03B23/049 , C03B37/012
CPC分类号： C03B37/01254 , C03B19/1469 , C03B23/045 , C03B23/0493 , C03B23/0496
摘要： A method and a device for manufacturing a glass tube, the method wherein a diameter expanding member is inserted into a hole in a tubular glass material to increase the diameter of the hole while maintaining a glass material temperature at the softening point or higher of the glass material, the tubular glass material may be purchased or manufactured, and the diameter of the hole in the glass material may be increased while supporting the diameter increasing material at least at the rear end thereof or while supporting the diameter increasing material at both ends thereof; the device comprising a means for moving the diameter expanding member and the glass material relative to each other so that a heating member for heating the tubular glass material from the periphery, the diameter expanding member insertable into the glass material, a support member for supporting both ends of the diameter expanding member, and the diameter expanding member can be inserted into the hole in the glass material.
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公开(公告)号：EP1243567A4
公开(公告)日：2005-03-09
申请号：EP00966412
申请日：2000-10-11
IPC分类号： C03B37/027 , C03B37/029 , G02B6/00
CPC分类号： C03B37/02718 , C03B37/029 , C03B2205/56 , C03B2205/82 , C03B2205/83 , C03B2205/90
摘要： A drawing device (1) has a drawing furnace (11), a protective tube (21) and a resin curing section (31). Disposed between the drawing furnace (11) and the protective tube (21) is a buffer chamber (41), having a length (L1) as seen in the drawing direction of optical fibers (3). The buffer chamber (41) is composed of a first buffer chamber (42) and a second buffer chamber (45). The inner space of the buffer chamber (41) contains a mixture of He gas which is the atmosphere gas in the drawing furnace (11) and air which is the atmosphere gas in the protective tube (21). The optical fibers (3) heated and drawn in the drawing furnace (11) are fed into the protective tube (21) and their predetermined regions are slowly cooled at a predetermined cooling rate. Thereafter, a UV resin liquid (63) is applied to the optical fibers (3) by a coating die (62), the UV resin (63) being cured in the resin curing section (31); the optical fibers become an optical fiber strand (4).
摘要翻译： 拉拔装置1包括拉丝炉11，保护管21和树脂固化单元31.缓冲室41设置在拉丝炉11和保护管21之间，并且沿着拉伸方向的长度L1 缓冲室41由第一缓冲单元42和第二缓冲单元45构成。在缓冲室41内的空间内，作为拉制炉11内的气氛气体的He气体和空气 作为保护管21内的气氛气体，以混合状态存在。 在拉丝炉11中加热拉制的光纤3被送入保护管21，光纤3的预定部分以预定的冷却速度退火。 此后，涂布模具62用UV树脂溶液63涂覆光纤3，树脂固化单元31固化UV树脂63，从而获得涂覆的光纤4。
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5.发明公开PRODUCTION DEVICE AND METHOD FOR OPTICAL FIBER 无效VORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG VON OPTISCHEN FASERN
公开(公告)号：EP1205449A4
公开(公告)日：2006-10-18
申请号：EP00929884
申请日：2000-05-26
IPC分类号： C03B37/027 , C03B37/029 , C03B37/12
CPC分类号： C03B37/02718 , C03B37/029 , C03B2205/40 , C03B2205/56
摘要： A wire drawing device (1) has a wire drawing furnace (11), a heating furnace (21) and a resin curing unit (31). An optical fiber (3) heat-drawn in the wire drawing furnace (11) is fed to a heating furnace (21), and a preset portion of the optical fiber (3) is slowly cooled at a preset cooling speed. A heater (22) temperature in the heating furnace (21) is so set that a furnace center temperature is within a range of 1200 to 1600 DEG C. Then, the optical fiber (3) is coated with a UV resin liquid (52) by a coating die (51), and the UV resin (52) is cured at the resin curing unit (31) to form an optical fiber strand (4).
摘要翻译： 拉制装置1包括拉丝炉11，加热炉21和树脂固化部分31.在拉制炉11中加热拉制的光纤3被送到加热炉21，其中光纤的预定部分 3以预定的冷却速率进行退火。 炉中心的加热炉21的加热器22的温度设定为1200〜1600℃的温度。此后，通过涂布模51将光纤3涂覆有UV树脂液52， 并且UV树脂52在树脂固化部分31中固化，从而产生涂覆的光纤4.
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公开(公告)号：EP1211228A4
公开(公告)日：2005-06-01
申请号：EP00942422
申请日：2000-06-30
发明人： ISHIHARA TOMOHIRO , SAITO TATSUHIKO , OHGA YUICHI
IPC分类号： C03B37/027 , C03B37/029 , G02B6/00
CPC分类号： C03B37/027 , C03B37/02772 , C03B37/029 , C03B2205/45 , C03B2205/47 , C03B2205/63 , C03B2205/72
摘要： A fiber drawing device (1) has a drawing furnace (11) provided with a carbon heater (13), for heat-drawing an optical fiber preform (2). The carbon heater (13) has a heating portion at least 280 mm in length in a drawing direction, and emits heat so that a maximum temperature on the surface of the optical fiber preform (2) in the furnace (11) is lower than 1800 DEG C. When the preform (2) is drawn with the temperature of a furnace tube (12) of the furnace (11) kept below 1800 DEG C, an atomic arrangement in the preform (2) is comparatively adjusted and is kept minimized in disorderedness. Whereby, it is possible to provide the optical fiber (3) lowered in Rayleigh scattering intensity and in transmission loss, reflecting a lowered atomic arrangement disorderedness in the drawn optical fiber (3).
摘要翻译： 一个绘图装置1具有用于加热和光纤预型体2的图纸拉丝炉11，和一个碳加热器13在该拉丝炉11的碳加热器13具有在拉伸方向被设定的长度的加热部分被设置 为不低于280毫米。 碳加热器13个加热所述预成型件，以便做光纤预制件2的拉丝炉11变得低于1800℃的表面上的最大温度的光纤母材2被吸入的状态下马弗管的温度 在拉丝炉11的12保持在低于1800℃，如此做了原子排列在光纤预制件2在降低的原子排列的随机性的状态变得相对对准。 这允许光纤3被绘制为反射的原子排列，从而使光纤3能够以减少瑞利获得散射光的强度和降低的传输损耗的降低的随机性状态。
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公开(公告)号：EP1044931A4
公开(公告)日：2005-03-09
申请号：EP98954721
申请日：1998-11-18
发明人： NAKAMURA MOTONORI , OHGA YUICHI
IPC分类号： C03B37/014 , C03B37/018
CPC分类号： C03B37/01413 , C03B37/0142 , C03B37/01486 , C03B2207/36 , C03B2207/52 , C03B2207/54 , C03B2207/66 , C03B2207/70
摘要： A method of manufacturing an optical fiber base material, comprising forming a soot body by spray-depositing fine glass particles, which are synthesized by a burner (2), onto an outer circumferential surface of a starting member (3), which is prepared by fusing a dummy rod to both end portions of a core base material, while moving the starting member (3) reciprocatingly in the axial direction thereof relatively with respect to the burner, characterized in that gauge marks (11, 12) are set in positions which are a predetermined distance away from interfaces of the core base material and dummy rod toward the dummy rod, the relative reciprocating movement of the starting member being made by reversing the direction of the relative movement at instants at which the burner (2) reaches turning points (15, 16) existing in end portions distant from the gauge marks (11, 12), a raw glass material being fed from a raw material supply unit (5) only when the burner (2) is positioned between the gauge marks (11, 12).
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