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1.发明授权Method and apparatus for fabricating coated optical fiber, and coated optical fiber 有权用于制造涂覆光纤和涂覆光纤的方法和装置公开(公告)号：US06519404B1
公开(公告)日：2003-02-11
申请号：US09890166
申请日：2001-07-27
IPC分类号： G02B602
CPC分类号： C03B37/032 , C03B37/027 , C03B37/02745 , C03B2203/06 , C03B2203/19 , C03B2203/36 , C03B2205/06 , C03C25/12 , C03C25/18
摘要： In a fabrication method of coated optical fiber 21, the coated optical fiber 21 is fabricated by heating to soften an end of an optical fiber preform 11 to draw a glass fiber 13 out therefrom, laying coatings 16, 19 on the glass fiber 13 to make the coated optical fiber 21, and guiding the coated optical fiber 21 via a swing guide roller 23 periodically swinging, to twist the coated optical fiber 21, thereby imparting twists about the axis to the glass fiber 13 inside the coated optical fiber 21. The fabrication method comprises a step of passing the coated optical fiber 21 having passed the swing guide roller 23, through a free zone (between 26 and 27) in which the coated optical fiber 21 is allowed to freely rotate about the axis, and thereby longitudinally canceling out elastic torsion stored in the coated optical fiber 21 because of longitudinally alternate inversion of twist directions thereof, wherein a zone length L (m) of the free zone is not less than Lo (m) defined as follows: Lo (m)=[a maximum drawing speed of the coated optical fiber (m/min)]/[the number of clockwise and counterclockwise swing motions per unit time of the swing guide roller (motions/min)].
摘要翻译： 在涂覆光纤21的制造方法中，通过加热来制造涂覆光纤21，以软化光纤预制棒11的端部，从中拉出玻璃纤维13，将玻璃纤维13上涂覆涂层16,19 涂布光纤21，经由摆动导向辊23周期性摆动地引导被覆光纤21，使被覆光纤21扭曲，从而使被覆光纤21内的玻璃纤维13绕轴线扭曲。 方法包括使已经通过摆动引导辊23的涂覆光纤21通过允许涂覆光纤21绕轴线自由旋转的自由区（26和27之间）的步骤，从而纵向消除 由于其扭转方向的纵向交替反转，存储在涂覆光纤21中的弹性扭转，其中自由区的区段长度L（m）不小于如下定义的Lo（m） ：Lo（m）= [涂覆光纤的最大拉伸速度（m / min）] / [摆动导辊的每单位时间的顺时针和逆时针摆动运动的数量（运动/分钟）]。
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公开(公告)号：US06735983B1
公开(公告)日：2004-05-18
申请号：US09830939
申请日：2001-05-03
IPC分类号： C03B3702
CPC分类号： C03B37/0253 , C03B37/02736 , C03B37/029 , C03B2205/63 , C03B2205/70 , C03B2205/72 , C03B2205/80
摘要： A fiber drawing method according to the present invention is a drawing method of optical fiber for drawing an optical fiber 14 from one end of a fiber preform 13 by softening with heat, wherein the fiber preform 13 is set in a semi-closed space 10, 20 opening in part at a lower end in a fiber drawing furnace, the fiber preform 13 is heated by a heater 15 disposed on the lower end side of this semi-closed space 10, 20, and fiber drawing is carried out with adjusting a quantity of heat dissipation from the upper portion 20 of this semi-closed space.
摘要翻译： 根据本发明的纤维拉伸方法是通过用热软化从纤维预成型体13的一端拉伸光纤14的光纤的拉丝方法，其中纤维预制棒13设置在半封闭空间10中， 20在纤维拉伸炉的下端部分地开口，纤维预成型体13被设置在该半封闭空间10,20的下端侧的加热器15加热，并且通过调节量进行纤维拉伸 从该半封闭空间的上部20散热。
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公开(公告)号：US06711335B1
公开(公告)日：2004-03-23
申请号：US09979100
申请日：2001-11-19
IPC分类号： G02B644
CPC分类号： G02B6/4436 , C03C25/1065
摘要： The heat-resistant coated optical fiber in accordance with the present invention comprises a coating portion 20, coated on the outer periphery of an optical fiber 10, comprising a first coating layer 21 consisting of aromatic polyimide resin, a second coating layer 22 consisting of silicone resin, and a third coating layer 23 consisting of moisture-resistant resin with a heat resistance equivalent to that of the first coating layer 21, e.g., PFA.
摘要翻译： 根据本发明的耐热涂层光纤包括涂覆在光纤10的外周上的涂层部分20，包括由芳族聚酰亚胺树脂组成的第一涂层21，由硅树脂组成的第二涂层22 树脂和由耐湿树脂构成的具有与第一涂层21（例如PFA）的耐热性相当的耐热性的第三涂层23。
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公开(公告)号：US4770898A
公开(公告)日：1988-09-13
申请号：US916396
申请日：1986-10-07
申请人： Masakatsu Sugai , Katsuyuki Tsuneishi , Yuji Kameo
发明人： Masakatsu Sugai , Katsuyuki Tsuneishi , Yuji Kameo
IPC分类号： C03C25/00 , B05D3/06 , B29C35/08 , B29C35/10 , C03B37/00 , C03C25/10 , G02B6/44 , B29D11/00 , G01J1/00
CPC分类号： C03C25/12 , B29C35/10 , C03C25/106 , B29C2035/0827 , B29L2011/0075
摘要： A method for producing an optical fiber which comprises steps of:spinning an optical fiber from a molten preform for an optical fiber,applying a UV-curable resin to the surface of the spun optical fiber, andirradiating UV light through a layer of a material for absorbing UV light and a layer of a gas for preventing uncuring of the UV-curable resin to cure the UV-curable resin, by which the UV curable resin is homogeneously cured along its length.
摘要翻译： 一种光纤的制造方法，其特征在于，包括以下步骤：从用于光纤的熔融预成型体中纺出光纤，在所述纺丝光纤的表面涂布紫外线固化型树脂，并将紫外线照射到材料层 用于吸收UV光和一层气体，以防止紫外光固化树脂的固化固化紫外光固化树脂，UV固化树脂沿其长度均匀固化。
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公开(公告)号：US4539219A
公开(公告)日：1985-09-03
申请号：US691791
申请日：1985-01-16
CPC分类号： C03C25/106 , C03C25/143
摘要： A method and apparatus for coating optical transmission glass fibers with a resinous composition. A vessel is provided through which a glass fiber is drawn. While it is being drawn through the vessel, the fiber is spun, and a resin coating is applied. In order to maintain the air pressure within the vessel fairly constant, an exhaust vent is provided through which excess particles of the resinous composition may escape. Turbulence is thus substantially reduced preventing the fiber from swinging and allowing the particles to be sprayed smoothly. Further, the particles may be electrically charged so that they are both attracted to the optical fiber and repel one another during flight. The invention employs both of these features to produce a uniform coat on an optical transmission glass fiber.
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公开(公告)号：US06546760B1
公开(公告)日：2003-04-15
申请号：US08674865
申请日：1996-07-03
申请人： Ichiro Tsuchiya , Kohei Kobayashi , Hiroaki Ohta , Kazuya Kuwahara , Katsuyuki Tsuneishi , Hideo Miyaki , Yasuo Matsuda
发明人： Ichiro Tsuchiya , Kohei Kobayashi , Hiroaki Ohta , Kazuya Kuwahara , Katsuyuki Tsuneishi , Hideo Miyaki , Yasuo Matsuda
IPC分类号： C03B37029
CPC分类号： C03B37/029 , C03B2205/63 , H05B3/145 , H05B3/44
摘要： There is provided an optical fiber drawing furnace capable of drawing an optical fiber having small non circularity, which drawing furnace includes a muffle tube, in which an optical fiber preform is supplied, a heater surrounding the muffle tube, a plurality of electrode connecting portion extending from the heater, a plurality of electrodes connected to electrode connecting portions, and in conjunction therewith to an electric power source, and unifying means for unifying the temperature distribution along the circumferential direction.
摘要翻译： 提供了一种能够拉伸小圆形光纤的光纤拉丝炉，该拉丝炉包括一个马弗管，其中提供了一个光纤预制棒，一个围绕马弗管的加热器，多个电极连接部分延伸 从加热器，连接到电极连接部分的多个电极，以及与电源连接的多个电极，以及用于统一沿着周向的温度分布的统一装置。
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公开(公告)号：US4892572A
公开(公告)日：1990-01-09
申请号：US274855
申请日：1988-11-22
IPC分类号： G02B6/00 , B65H54/88 , C03B37/025 , C03B37/027 , C03B37/029 , C03B37/03 , C03B37/035 , C03B37/14 , D01D11/00
CPC分类号： B65H54/88 , C03B37/0253 , C03B37/035 , C03B2205/40 , Y02P40/57
摘要： An optical fiber drawing apparatus which includes a heating furnace which fuses a forward end of an optical fiber preform for drawing an optical fiber, and a screening portion which applies tension to the optical fiber through in-line, for guarantee of its strength. The screening portion further includes a suction device disposed along a passage of the optical fiber running through it for sucking in the optical fiber.
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8.发明授权Cleaning a glass preform with a high temperature inert gas during the drawing of an optical fiber 失效在拉制光纤时，用高温惰性气体清洗玻璃预制件
公开(公告)号：US5922098A
公开(公告)日：1999-07-13
申请号：US619208
申请日：1996-03-21
IPC分类号： G02B6/00 , C03B37/027 , C03B37/012
CPC分类号： C03B37/02736 , C03B37/027
摘要： In a drawing method and drawing apparatus according to the present invention, a forward end portion of an optical fiber glass preform is heated and melted while the glass preform is fed into a drawing furnace 3 so that an optical fiber is drawn, and the optical fiber glass preform is heated in a position just above the drawing furnace to make the surface of the glass preform clean.
摘要翻译： 在根据本发明的拉伸方法和拉伸装置中，将玻璃预制件送入拉丝炉3中拉出玻璃纤维预成型件的前端部分，使其拉出光纤， 将玻璃预成型件在刚好在拉丝炉上方的位置加热，以使玻璃预制件的表面清洁。
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公开(公告)号：US5449393A
公开(公告)日：1995-09-12
申请号：US194379
申请日：1994-02-08
IPC分类号： C03B37/027 , C03B37/025 , C03B37/07 , G01M11/08 , G02B6/00
CPC分类号： C03B37/0253 , G01M11/088 , C03B2205/40
摘要： A method and apparatus are provided for detecting irregular portions of an optical fiber which arise due to microscopic bubbles, bruises, and the like during an optical fiber drawing process. The present invention operates by varying the pulling rate of a pulling capstan based on feeding back measurements of the external diameter of the optical fiber to the pulling capstan. The ratio of a given pulling rate variation to a predetermined time period is then computed. The computed ratio is then compared to a previously specified value.
摘要翻译： 提供了一种方法和装置，用于在光纤拉制过程中检测由于微小的气泡，瘀伤等引起的光纤的不规则部分。 本发明通过基于将光纤的外径的测量值反馈到牵引绞盘来改变牵引绞盘的牵引速率来操作。 然后计算给定的牵引速率变化与预定时间段的比率。 然后将计算的比率与先前指定的值进行比较。
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公开(公告)号：US4512281A
公开(公告)日：1985-04-23
申请号：US529779
申请日：1983-09-06
CPC分类号： C03C25/106 , C03C25/143
摘要： A method and apparatus for coating optical transmission glass fibers with a resinous composition. A vessel is provided through which a glass fiber is drawn. While it is being drawn through the vessel, the fiber is spun, and a resin coating is applied. In order to maintain the air pressure within the vessel fairly constant, an exhaust vent is provided through which excess particles of the resinous composition may escape. Turbulence is thus substantially reduced preventing the fiber from swinging and allowing the particles to be sprayed smoothly. Further, the particles may be electrically charged so that they are both attracted to the optical fiber and repel one another during flight. The invention employs both of these features to produce a uniform coat on an optical transmission glass fiber.
摘要翻译： 一种用树脂组合物涂覆光学透射玻璃纤维的方法和装置。 提供容器，通过该容器拉出玻璃纤维。 当它被吸收通过容器时，纤维被纺丝，并施加树脂涂层。 为了保持容器内的空气压力相当恒定，提供排气口，通过该排气口，树脂组合物的多余颗粒可以逸出。 因此，湍流显着减少，防止纤维摆动并允许颗粒平滑喷射。 此外，颗粒可以带电，使得它们都被吸引到光纤并在飞行中彼此排斥。 本发明使用这两个特征来在光学透射玻璃纤维上产生均匀的涂层。
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