公开(公告)号：US12060294B1

公开(公告)日：2024-08-13

申请号：US18575887

申请日：2022-03-31

Applicant: JINZHOU YOUXIN QUARTZ TECHNOLOGY CO., LTD

Inventor： Zonghui Li ,  Man Chen ,  Ye Wang ,  Zhen Wang ,  ZhiQiang Zhang ,  XingWang Sun ,  Li Ma

IPC: C03B35/00 ,  C03B20/00 ,  C30B35/00

CPC classification number: C03B20/00 ,  C30B35/002 ,  C03B2201/02

Abstract: A manufacturing method of a large-outer-diameter quartz crucible for a Czochralski (CZ) single crystal is provided. The manufacturing method is a vacuum arc method, and specifically includes: releasing a high-temperature arc with an electrode bundle composed of 2N+1 electrodes to fuse a crucible blank, and performing rapid cooling to form an initial quartz crucible product, where N is an integer greater than or equal to 2; the 2N+1 electrodes include one central main electrode and 2N auxiliary electrodes; the 2N auxiliary electrodes are equidistantly distributed on a circumference with the central main electrode as a center; the central main electrode is aligned at an axis of the crucible mold; the 2N auxiliary electrodes are connected to two phases of an industrial three-phase power, and the two phases are alternately arranged on the auxiliary electrodes; the central main electrode is connected to a remaining phase of the industrial three-phase power.

公开(公告)号：US11719881B2

公开(公告)日：2023-08-08

申请号：US17856415

申请日：2022-07-01

Applicant: NKT Photonics

Inventor： Thomas Tanggaard Alkeskjold ,  Casper Laur Byg ,  Christian Jakobsen ,  Jens Kristian Lyngsøe ,  Kim G. Jespersen ,  Jeppe Johansen ,  Martin Dybendal Maack ,  Martin Erland Vestergaard Pedersen ,  Carsten L. Thomsen

IPC: G02B6/036 ,  C03B37/027 ,  C03B37/10 ,  C03C13/04 ,  C03C25/106 ,  C03C25/1065 ,  C03C25/607 ,  G02B6/02 ,  G02B6/14 ,  G02F1/365 ,  G02F1/35

CPC classification number: G02B6/03694 ,  C03B37/0279 ,  C03B37/02781 ,  C03B37/10 ,  C03C13/045 ,  C03C13/046 ,  C03C25/1061 ,  C03C25/1062 ,  C03C25/1068 ,  C03C25/607 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/02395 ,  G02B6/14 ,  G02F1/365 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/21 ,  C03B2201/22 ,  C03B2203/14 ,  C03B2203/23 ,  C03B2203/42 ,  C03C2201/02 ,  C03C2201/21 ,  C03C2201/22 ,  G02B6/02366 ,  G02F1/3528

Abstract: A Photonic Crystal Fiber (PCF) a method of its production and a supercontinuum light source comprising such PCF. The PCF has a longitudinal axis and includes a core extending along the length of said longitudinal axis and a cladding region surrounding the core. At least the cladding region includes a plurality of microstructures in the form of inclusions extending along the longitudinal axis of the PCF in at least a microstructured length section. In at least a degradation resistant length section of the microstructured length section the PCF includes hydrogen and/or deuterium. In at least the degradation resistant length section the PCF further includes a main coating surrounding the cladding region, which main coating is hermetic for the hydrogen and/or deuterium at a temperature below Th, wherein Th is at least about 50° C., preferably 50° C.

公开(公告)号：US20180215645A1

公开(公告)日：2018-08-02

申请号：US15678665

申请日：2017-08-16

Applicant: Corning Incorporated

Inventor： Venkata Adiseshaiah Bhagavatula ,  Daniel Warren Hawtof ,  Xinghua Li ,  Gary Edward Merz ,  John Stone, III

IPC: C03B19/14

CPC classification number: C03B19/1453 ,  C03B19/1407 ,  C03B19/1492 ,  C03B2201/02 ,  C03B2201/06

Abstract: A system and method for making an edge section of a thin, high purity fused silica glass sheet. The method includes a step of directing a laser to melt through the glass sheet with localized heating of a narrow portion of the glass sheet to form an edge section of the glass sheet, and continuing the edge section to form a closed loop defining a perimeter of the glass sheet. The method further includes rapidly cooling the glass sheet through the glass transition temperature as the melted glass of the edge section contracts and/or solidifies to form an unrefined-bullnose shape extending between first and second major surfaces of the glass sheet.

公开(公告)号：US20180036945A1

公开(公告)日：2018-02-08

申请号：US15553618

申请日：2016-02-23

Applicant: Corning Incorporated

Inventor： Jean-Pierre Henri René Lereboullet ,  Michel Prassas

IPC: B29C64/165 ,  C03B32/00 ,  B28B1/00 ,  B33Y10/00 ,  B33Y70/00 ,  C03B19/06 ,  C04B35/622

CPC classification number: B29C64/165 ,  B28B1/001 ,  B29C64/205 ,  B33Y10/00 ,  B33Y70/00 ,  C03B19/06 ,  C03B19/063 ,  C03B32/00 ,  C03B32/005 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/50 ,  C04B35/622

Abstract: Additive manufacturing processes for making transparent three-dimensional parts from inorganic material powders involve selective use of vacuum to remove or avoid trapped bubbles in the parts.

公开(公告)号：US20170297947A1

公开(公告)日：2017-10-19

申请号：US15337591

申请日：2016-10-28

Applicant: Corning Incorporated

Inventor： Kenneth Duane Billings ,  Dana Craig Bookbinder ,  Paul Andrew Chludzinski ,  Robert Clark Moore ,  Pushkar Tandon

IPC: C03B37/025 ,  G02B6/02 ,  C03C25/10 ,  G02B6/036

CPC classification number: C03B37/02718 ,  C03B37/0253 ,  C03B37/02727 ,  C03B37/029 ,  C03B37/032 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/31 ,  C03B2201/50 ,  C03B2203/224 ,  C03B2203/24 ,  C03B2203/26 ,  C03B2205/42 ,  C03B2205/44 ,  C03B2205/55 ,  C03B2205/56 ,  C03B2205/60 ,  C03C25/106 ,  G02B6/02004 ,  G02B6/02009 ,  G02B6/0281 ,  G02B6/03622 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/03694

Abstract: According to some embodiments a method of processing an optical fiber comprises the steps of: (i) drawing the fiber at a drawing rate of at least 30 m/sec; and (ii) cooling the drawn fiber in a gas at an average cooling rate less than 5000° C./s, such that said cooling reduces the temperature of the fiber from an entering temperature in the range between 1500° C. and 1700° C. to another temperature in the range between 1200° C. and 1400° C., the gas being at a temperature between 800° C. and 1500° C.; and the thermal conductivity κ of the gas being not greater than 1.5×10−4 cal/cm-s-K for at least one temperature within a range of 800° C. to 1500° C. at one atm (atmosphere) pressure absolute.

公开(公告)号：US20170192169A1

公开(公告)日：2017-07-06

申请号：US15467264

申请日：2017-03-23

Applicant: Fujikura Ltd.

Inventor： Takayuki Kitamura ,  Sho Endo ,  Tatsuya Kishi ,  Ryo Maruyama

IPC: G02B6/036 ,  G02B6/02

CPC classification number: G02B6/03627 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/23 ,  G02B6/02004 ,  G02B6/0365

Abstract: An optical fiber including a core and a cladding including an inner cladding layer and an outer cladding layer is provided. The refractive index of the core Δ1, the refractive index of the inner cladding layer Δ2, and the refractive index of the outer cladding layer Δ3 have a relationship denoted by the following expressions: Δ1max>Δ2min and Δ1max>Δ3, and 0.01%

公开(公告)号：US20170101335A1

公开(公告)日：2017-04-13

申请号：US15271610

申请日：2016-09-21

Applicant: Corning Incorporated

Inventor： Paul Andrew Chludzinski ,  Dominick Fiordimalva

IPC: C03B37/012

CPC classification number: C03B37/01222 ,  C03B37/01211 ,  C03B37/01248 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/06 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/224 ,  C03B2203/225 ,  C03B2203/23 ,  C03B2203/34 ,  Y02P40/57

Abstract: The present disclosure provides optical fiber preforms formed from core canes having large core-clad ratio, intermediate core-cladding assemblies, and methods for making the preforms and core cladding assemblies. The preforms are made with capped core canes. The capping material has a coefficient of thermal expansion less than the coefficient of thermal expansion of the core cane and more closely matched to or lower than the coefficient of thermal expansion of the surrounding cladding monolith in a cane-in-soot process. Presence of the cap reduces stresses that arise from differential thermal expansion of the core cane and cladding materials and leads to preforms having low defect concentration and low probability of failure during subsequent thermal processing steps.

公开(公告)号：US09527764B2

公开(公告)日：2016-12-27

申请号：US14280691

申请日：2014-05-19

Applicant: Shin-Etsu Chemical Co., Ltd.

Inventor： Dai Inoue ,  Takaaki Nagao ,  Hiroyuki Koide

IPC: C03B37/014

CPC classification number: C03B37/01413 ,  C03B37/0142 ,  C03B2201/02 ,  C03B2201/31 ,  C03B2207/36 ,  C03B2207/70 ,  C03B2207/85 ,  C03B2207/87 ,  Y02P40/57

Abstract: Provided is a quartz glass manufacturing method that involves using one or more burners, supplying hydrogen and oxygen to the one or more burners to generate an oxyhydrogen flame, introducing a silicide into the oxyhydrogen flame, forming a porous base material by depositing silicon dioxide generated from a flame hydrolysis reaction with the silicide, and heating and sintering the porous base material to form transparent glass, the method comprising supplying hydrogen that is stored or made at a normal temperature to the one or more burners; controlling a hydrogen flow rate using a measurement apparatus or control apparatus that performs measurement based on heat capacity of a gas; vaporizing liquid hydrogen stored in a low-temperature storage chamber, and supplying the vaporized liquid hydrogen to the one or more burners as backup hydrogen; switching from the hydrogen to the backup hydrogen; and when switching, adjusting the hydrogen flow rate to a value obtained by multiplying the hydrogen flow rate immediately after switching by a predetermined correction coefficient.

Abstract translation: 提供了一种石英玻璃制造方法，其包括使用一个或多个燃烧器，向一个或多个燃烧器供应氢气和氧气以产生氢氧焰，将硅化物引入氢氧焰中，通过沉积二氧化硅形成多孔基材， 与所述硅化物进行火焰水解反应，以及加热和烧结所述多孔基材以形成透明玻璃，所述方法包括将在常温下储存或制造的氢气供应给所述一个或多个燃烧器; 使用基于气体的热容量进行测量的测量装置或控制装置控制氢气流量; 蒸发存储在低温储存室中的液态氢，并将蒸发的液体氢气作为备用氢气供给到一个或多个燃烧器; 从氢气切换到备用氢气; 并且当切换时，将氢气流量调节到通过将切换之后的氢气流量乘以预定校正系数而获得的值。

公开(公告)号：US20160229730A1

公开(公告)日：2016-08-11

申请号：US15029322

申请日：2014-10-14

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： David C. Jarmon

IPC: C03B19/02

CPC classification number: C03B19/025 ,  B28B1/24 ,  B28B3/025 ,  C03B19/02 ,  C03B2201/02 ,  C03B2201/10

Abstract: One exemplary embodiment of this disclosure relates to a transfer molding assembly. The assembly includes a die having a molding cavity interconnected with a reservoir. The assembly further includes a heater operable to heat the die, and a load plate configured to move under its own weight to transfer material from the reservoir into the molding cavity.

Abstract translation: 本公开的一个示例性实施例涉及传递模制组件。 组件包括具有与储存器互连的模腔的模具。 组件还包括可操作以加热模具的加热器和构造成在其自重下移动以将材料从储存器转移到模制腔中的负载板。

公开(公告)号：US09279935B2

公开(公告)日：2016-03-08

申请号：US13995310

申请日：2010-12-23

Applicant: Silvio Frigerio ,  Ricardo Antunes De Camargo ,  Lidia Terruzzi

Inventor： Silvio Frigerio ,  Ricardo Antunes De Camargo ,  Lidia Terruzzi

IPC: C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  G02B6/036

CPC classification number: G02B6/036 ,  C03B37/01211 ,  C03B37/01248 ,  C03B37/01257 ,  C03B37/01446 ,  C03B37/01807 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/24 ,  G02B6/03666

Abstract: A single-mode transmission optical fiber includes a central core region radially outwardly from a centerline to a radius r1 and having a positive relative refractive index Δ1; a first inner cladding region extending radially outwardly from the central core to a radius r2 and having a negative relative refractive index Δ2; a second inner cladding region extending radially outwardly from the first inner cladding region to a radius r3 and having a non-negative relative refractive index Δ3; an intermediate cladding region extending radially outwardly from the second inner cladding region to a radius r4 having a negative relative refractive index Δ4 larger in absolute value than the relative refractive index Δ2; and an outer cladding region extending radially outwardly from the intermediate cladding region and having a non-negative relative refractive index Δ5; wherein the relative refractive index Δ2 of the first inner cladding region is −0.1·10−3 to −1.0·10−3 and the relative refractive index Δ4 of the intermediate cladding is −3.0·10−3 to −5.0·10−3.

Abstract translation: 单模传输光纤包括从中心线径向向外到半径r 1并具有正相对折射率＆amp; Dgr; 1的中心芯区域; 从中心芯径向向外延伸到半径r2并且具有负相对折射率＆lt; Dgr; 2的第一内包层区域; 3，从第一内包层区径向向外延伸至半径r3并具有非负相对折射率Dgr; 3的第二内包层区; 从第二内包层区域径向向外延伸到具有相对于相对折射率＆Dgr; 2的绝对值大的负相对折射率＆lt; Dgr; 4的半径r4的中间包层区域; 以及从中间包层区域径向向外延伸且具有非负相对折射率＆lt; Dgr; 5的外包层区域; 其中所述第一内包层区域的相对折射率＆Dgr; 2为-0.1×10 -3至-1.0×10 -3，并且所述中间包层的相对折射率＆Dgr; 4为-3.0×10-3至-5.0 ·10-3。