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1. 发明公开

EP3207352A1 APPARATUS AND METHOD FOR PREFORM OR TUBE DRAWING BASED ON ITS VISCOSITY 有权转让
标题翻译：基于其粘度的预制或管材拉拔设备和方法
公开(公告)号：EP3207352A1
公开(公告)日：2017-08-23
申请号：EP14790448.6
申请日：2014-10-14
申请人： Heraeus Tenevo LLC
发明人： FATTAL, Georges, Levon , BEAVERS, James E. Jr. , CHANG, Kai Huel , GREEN, Evan, P. , MA, Qiulin
IPC分类号： G01N11/00 , G01N11/02
CPC分类号： G01N11/06 , C03B23/047 , C03B23/0473 , C03B37/0124 , C03B37/01242 , C03B2205/40 , G01N11/00 , G01N11/02 , G01N11/04 , G01N11/08 , G01N2011/006
摘要： Methods for preform and tube draw based on controlling forming zone viscosity determined by calculating a holding force exerted by the glass component in the forming zone on the strand being drawn below. The holding force may be calculated by determining a gravitational force applied to the strand and a pulling force applied to the strand by a pulling device, where the holding force is equal to the opposite of the algebraic sum of the gravitational and pulling forces. The holding force may also be calculated by measuring a stress-induced birefringence in the strand at a point between the forming zone and the pulling device, determining an amount of force applied to the strand at the point corresponding to the birefringence, and calculating the holding force by correcting the amount of force for a gravitational effect of the weight of the strand between the forming zone and the point.
摘要翻译：基于控制成形区粘度的预成形和管拉拔的方法，该成形区粘度通过计算玻璃成分在成形区中施加的保持力而被拉伸到下方。保持力可以通过确定施加到股的重力和通过牵引装置施加到股的拉力来计算，其中保持力等于重力和拉力的代数和的相反。保持力也可以通过测量在成形区与牵引装置之间的点处的线中的应力诱导双折射率，确定在对应于双折射的点处施加到线的力的量，并且计算保持力通过校正成形区和点之间的线的重量的重力效应的力的量。

2. 发明公开

EP1988061A1 Method for elongating a glass body 审中-公开
标题翻译： Verfahren zurVerlängerungeinesGlaskörpers
公开(公告)号：EP1988061A1
公开(公告)日：2008-11-05
申请号：EP08008178.9
申请日：2008-04-29
申请人： Sumitomo Electric Industries, Ltd.
发明人： Nakanishi, Tetsuya
IPC分类号： C03B37/012 , G01B11/12
CPC分类号： G01B11/12 , C03B37/0124 , C03B37/01242 , G01N21/412
摘要： A method of elongating a glass body is provided, in which method the axial variation in the inner refractive index structure of a glass body can be restrained. The method comprises: (1) heating and softening a glass body with a heating source that moves in the longitudinal direction while both ends of the glass body are held directly or indirectly by a first holder and a second holder, the first and second holders being distanced from each other; (2) obtaining a first outer-diameter measured value by measuring, with a first diameter monitor, the outer diameter of the core portion lying in the range where the outer diameter of the core portion is decreasing as a result of softening of the glass body; (3) determining the distancing speed of the first and second holders and/or the moving speed of the heating source according to the first outer diameter measured value so that the post-elongation outer diameter of the core portion may become a desired value; (4) and moving the first holder or the second holder and/or moving the heating source so as to elongate the glass body according to the speed thus determined.
摘要翻译：提供一种延长玻璃体的方法，其中可以抑制玻璃体的内部折射率结构的轴向变化。该方法包括：（1）利用沿着纵向方向移动的加热源对玻璃体进行加热和软化，同时玻璃体的两端由第一保持件和第二保持件直接或间接地保持，第一和第二保持器彼此远离; （2）通过用第一直径监视器测量由于玻璃体的软化而使芯部的外径减小的范围内的芯部的外径来获得第一外径测量值 ; （3）根据第一外径测量值确定第一和第二保持器的间隔速度和/或加热源的移动速度，使得芯部的延伸后外径可以变为期望值; （4）并且移动第一保持器或第二保持器和/或移动加热源，以便根据如此确定的速度来拉长玻璃体。

3. 发明公开

EP0604786A3 Method and apparatus for making glass objects by drawing glass preforms 失效
标题翻译：通过绘制玻璃预制件制造玻璃物体的方法和装置。
公开(公告)号：EP0604786A3
公开(公告)日：1994-09-14
申请号：EP93119586.1
申请日：1993-12-06
申请人： Corning Incorporated
发明人： Koenig, David Mark, Corning Incorporated , Maschmeyer, Richard Orr, Corning Incorporated , Majestic, Peter John, Corning Incorporated
IPC分类号： C03B37/027 , C03B37/03 , C03B37/07 , C03B23/047 , G05D5/02
CPC分类号： C03B37/01242 , C03B37/0253 , C03B2205/40 , G05B11/42 , Y10S65/13
摘要： A dimension of the glass object is measured on-line and controlled by a control structure which compensates for the deadtime between a change to the drawing speed and the measurement of the effect of that change to the measured dimension. The model which compensates for the deadtime is preferably non-linear, and the control gains and model parameters are preferably continuously calculated during the drawing process. The application is particularly applicable to drawing optical waveguide rods or fibers from optical waveguide preforms.
摘要翻译：一种用于从玻璃原料拉制玻璃物体的方法和装置，其中玻璃物体的尺寸在线测量并由控制结构控制，所述控制结构补偿在绘制速度的变化与测量的影响之间的停留时间改为测量尺寸。补偿死区时间的模型优选为非线性，并且优选地在绘制过程期间连续地计算控制增益和模型参数。本发明特别适用于从光波导预成型件绘制光波导棒。

4. 发明授权

EP2428496B1 Apparatus for fabricating a glass rod and method of same 有权
标题翻译：用于制造玻璃棒的设备及其方法
公开(公告)号：EP2428496B1
公开(公告)日：2018-05-02
申请号：EP11180378.9
申请日：2011-09-07
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Otosaka, Tetsuya
IPC分类号： C03B37/012
CPC分类号： C03B37/01242
摘要： The present invention provides an apparatus and a method for fabricating a glass rod capable of suppressing a diameter fluctuation of a drawn glass rod even in a case of a relatively large diameter reduction ratio between a glass preform and a glass rod, such as 60 to 95%. the diameter (D) of the glass preform for determining the ratio from a measured diameter data is acquired, the measured diameter data is obtained by measuring a diameter of the glass preform before being drawn along a longitudinal direction of the preform, and the feed speed (V1) is determined so that the feed speed (V1) varies depending on a fluctuation of the measured diameter data in the longitudinal direction.

5. 发明授权

EP1242323B1 A method for producing a core rod to be used in a process for producing a final preform 有权
标题翻译：一种制造芯棒用于光纤预制件的方法，
公开(公告)号：EP1242323B1
公开(公告)日：2017-02-22
申请号：EP00991246.0
申请日：2000-12-21
申请人： Prysmian S.p.A.
发明人： CAIATA, Marco, Antonio , COCCHINI, Franco , FERRI, Giuseppe , MAZZOTTI, Andrea , ROSSI, Alessandro , SCHIAFFO, Antonio
IPC分类号： C03B37/012 , C03B23/047
CPC分类号： C03B37/01242 , C03B23/047 , C03B37/0124 , C03B37/01251

6. 发明公开

EP2316798A2 Formation of microstructured fiber preforms using porous glass deposition 有权
标题翻译： Bildung von mikrostrukturierten Faservorformen mittels Abscheidung vonporösemGlas
公开(公告)号：EP2316798A2
公开(公告)日：2011-05-04
申请号：EP10189443.4
申请日：2010-10-29
申请人： OFS Fitel, LLC
发明人： Fleming, James , Zydzik, George
IPC分类号： C03B37/012
CPC分类号： C03B37/01291 , C03B37/01242 , C03B2203/14 , C03B2203/42
摘要： A method of making a microstructured optical fiber preform uses the plasma fusion of a powder layer deposited onto a substrate under conditions that prevent the deposited layer from completely densifying, thereby yielding the formation of bubbles within the layer. By systematic control of powder melt and delivery, while maintaining the process temperature below a temperature associated with densifying the deposited layer, the powder particles densify only partially on the substrate and create bubbles of a fairly narrow (and thus controllable) diameter range within a defined region of the preform. Upon drawing a fiber from the preform, the bubbles will extend into gas lines, forming a desired microstructure arrangement.
摘要翻译：在防止沉积层完全致密化的条件下，制造微结构化光纤预制件的方法使用沉积在基板上的粉末层的等离子体熔融，从而在层内形成气泡。通过系统地控制粉末熔体和输送，同时将工艺温度保持在与致密化沉积层相关的温度以下，粉末颗粒仅部分地在基材上致密化，并产生在限定的范围内相当窄（且因此可控制）的范围内的气泡预成型件的区域。在从预成型件拉制纤维时，气泡将延伸到气体管线中，形成所需的微结构布置。

7. 发明公开

EP1559691A4 METHOD FOR DRAWING GLASS PARENT MATERIAL AND DRAWING MACHINE FOR USE THEREIN 审中-公开
标题翻译： ZERHMASCHINE ZUR VERWENDUNG DABEI VERFAHREN ZUM ZIEHEN VON GLASGRUQUIAL
公开(公告)号：EP1559691A4
公开(公告)日：2006-03-01
申请号：EP03760876
申请日：2003-06-17
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： KAWKAWASAKI K , HOSHINO SUMIO
IPC分类号： C03B23/047 , C03B37/012
CPC分类号： C03B37/0124 , C03B23/047 , C03B37/01242
摘要： In order to realize high-accuracy outside diameter control in a short time thus providing a highly reliable optical fiber parent material, the outside diameter is measured at the drawing part of a glass parent material. At the time of feedback controlling the drawing conditions based on the measurement and the target value of outside diameter, at least one control system of a control item being measured is switched based on at least one of the difference between the measurement and the target value and the variation of the difference per unit time.
摘要翻译：为了提供一种通过在短时间内实现外径的高精度控制来提高可靠性的光纤母材的伸长方法。这种伸长方法包括：根据测量值和目标值之间的差异和每个差异的变化率之间的至少一个来切换用于测量对象的控制项中的至少一个的控制方法的处理单位时间，用于测量玻璃母材伸长部分的外径，并根据与目标外径的差异对伸长条件进行反馈控制。

8. 发明公开

EP1559691A1 METHOD FOR DRAWING GLASS PARENT MATERIAL AND DRAWING MACHINE FOR USE THEREIN 审中-公开
标题翻译：程序拖带玻璃基材和绘图机使用中出现
公开(公告)号：EP1559691A1
公开(公告)日：2005-08-03
申请号：EP03760876.7
申请日：2003-06-17
申请人： Sumitomo Electric Industries, Ltd.
发明人： KAWASAKI, K., Sumitomo Electric Industries, Ltd. , HOSHINO, Sumio, Sumitomo Electric Industries, Ltd.
IPC分类号： C03B23/047 , C03B37/012
CPC分类号： C03B37/0124 , C03B23/047 , C03B37/01242
摘要： To provide a elongating method for elongating an optical fiber parent material with high reliability by implementing a high precision control for the outer diameter in short time.
This elongating method includes a process for switching a control method for at least one of the control items of measurement obj ect, based on at least one of a difference between measured value and target value and a change rate of the difference per unit time, in measuring the outer diameter of a glass parent material elongating portion and making a feedback control for the elongating conditions based on the difference from the target outer diameter.

9. 发明授权

EP3957612B1 METHOD FOR DRAWING OPTICAL FIBER GLASS PREFORM 有权
公开(公告)号：EP3957612B1
公开(公告)日：2024-10-23
申请号：EP21192143.2
申请日：2021-08-19
IPC分类号： C03B37/012
CPC分类号： C03B37/01242

10. 发明公开

EP2316798A3 Formation of microstructured fiber preforms using porous glass deposition 有权
标题翻译：通过多孔玻璃的沉积的装置的微结构纤维预型件的形成
公开(公告)号：EP2316798A3
公开(公告)日：2012-06-13
申请号：EP10189443.4
申请日：2010-10-29
申请人： OFS Fitel, LLC
发明人： Fleming, James , Zydzik, George
IPC分类号： C03B37/012
CPC分类号： C03B37/01291 , C03B37/01242 , C03B2203/14 , C03B2203/42
摘要： A method of making a microstructured optical fiber preform uses the plasma fusion of a powder layer deposited onto a substrate under conditions that prevent the deposited layer from completely densifying, thereby yielding the formation of bubbles within the layer. By systematic control of powder melt and delivery, while maintaining the process temperature below a temperature associated with densifying the deposited layer, the powder particles densify only partially on the substrate and create bubbles of a fairly narrow (and thus controllable) diameter range within a defined region of the preform. Upon drawing a fiber from the preform, the bubbles will extend into gas lines, forming a desired microstructure arrangement.

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