公开(公告)号：US4123483A

公开(公告)日：1978-10-31

申请号：US406112

申请日：1973-10-12

Applicant: Tsuneo Nakahara ,  Masao Hoshikawa ,  Satoshi Shiraishi ,  Shiro Kurosaki ,  Kunio Fujiwara

Inventor： Tsuneo Nakahara ,  Masao Hoshikawa ,  Satoshi Shiraishi ,  Shiro Kurosaki ,  Kunio Fujiwara

IPC: B29C43/00 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  C03B37/027 ,  G02B6/02 ,  G02B5/14

CPC classification number: C03B37/02754 ,  C03B37/01211 ,  C03B37/01413 ,  C03B37/01807 ,  G02B6/03633 ,  B29C2791/001 ,  B29C43/00 ,  B29K2067/06 ,  B29K2101/10 ,  B29K2101/12 ,  B29K2105/06 ,  B29K2105/24 ,  C03B2201/02 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2205/14 ,  C03B2205/16 ,  G02B6/03611

Abstract: A method of manufacturing an O-ring type optical waveguide wherein a layer of fused silica is formed on the smooth cylindrical surface of an elongated member of fused silica and thereafter a thin layer of doped fused silica having an index of refraction greater than that of said fused silica is formed over said layer of fused silica. A second layer of fused silica is then formed over the layer of doped fused silica and the composite structure is heated to its drawing temperatures and drawn to reduce the cross sectioned area thereof to form an optical waveguide having a cylindrical layer of higher refractive index interposed between a core and an outer cylindrical layer of lesser refractive index.

Abstract translation: 一种制造O型环型光波导的方法，其中在熔融二氧化硅的细长构件的光滑圆柱形表面上形成熔融二氧化硅层，此后形成折射率大于所述 在所述熔融二氧化硅层上形成熔融石英。 然后在掺杂的熔融二氧化硅层上形成第二层熔融石英，并将复合结构加热到其拉伸温度并拉伸以减小其横截面面积，以形成具有介于 较低折射率的芯和外圆柱形层。

公开(公告)号：US4002512A

公开(公告)日：1977-01-11

申请号：US568215

申请日：1975-04-14

Applicant: Mahn-Jick Lim

Inventor： Mahn-Jick Lim

IPC: C03B19/14 ,  C03B37/014 ,  C03B37/018 ,  C23C16/40 ,  G02B6/132 ,  H01L21/316 ,  H01L21/18

CPC classification number: H01L21/02126 ,  C03B19/1415 ,  C03B37/01413 ,  C03B37/01807 ,  C23C16/402 ,  G02B6/132 ,  H01L21/02129 ,  H01L21/02142 ,  H01L21/02164 ,  H01L21/022 ,  H01L21/02211 ,  H01L21/02271 ,  H01L21/31608 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/42 ,  C03B2207/36

Abstract: A method of depositing a layer comprising SiO.sub.2 on a surface of a substrate at a rate which is temperature independent is disclosed. The method includes combining dichlorosilane (SiH.sub.2 Cl.sub.2) with an oxidizing gas, such as O.sub.2, CO.sub.2, N.sub.2 O, H.sub.2 O, to form SiO.sub.2.

Abstract translation: 公开了一种以温度无关的速率在衬底的表面上沉积包含SiO 2的层的方法。 该方法包括将二氯硅烷（SiH 2 Cl 2）与氧化气体如O 2，CO 2，N 2 O，H 2 O组合以形成SiO 2。

公开(公告)号：US3737293A

公开(公告)日：1973-06-05

申请号：US3737293D

申请日：1972-01-03

Applicant: CORNING GLASS WORKS

Inventor： MAURER R

IPC: C03B37/018 ,  C03B37/027 ,  C03C13/04 ,  G02B6/00 ,  G02B6/02 ,  C03C25/06

CPC classification number: C03B37/027 ,  C03B37/01807 ,  C03B37/01853 ,  C03B37/01869 ,  C03B37/01892 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2203/24 ,  C03B2205/16

Abstract: A METHOD OF FORMING AN OPTICAL WAVEGUIDE BY FIRST FORMING A COATING OF GLASS ON THE INSIDE WALL OF A GLASS TUBE, THE GLASS TUBE AND THE FIRST COATING BEING OF SUBSTANTIALLY SIMILAR MATERIAL. THEREAFTER, A SECOND COATING OF GLASS IS APPLIED TO THE INSIDE WALL OF THE GLASS TUBE OVER THE FIRST COATING, SAID SECOND COATING HAVING A PRESELECTED DIFFERENT INDEX OF REFRACTION FROM THAT OF THE FIRST COATING. THE GLASS TUBE AND COATING COMBINATION IS THEREAFTER DRAWN TO REDUCE THE CROSS-SECTIONAL AREA AND TO COLLAPSE THE SECOND AND INNER COATING OF GLASS TO FORM A FIBER HAVING A SOLID CROSS-SECTIONAL AREA. THE COLLAPSED INNER COATING FORMS THE FIBER CORE AND THE FIRST COATING FORMS THE CLADDING FOR THE FIBER WHILE THE EXTERIOR GLASS TUBE PROVIDES STRUCTURAL STRENGTH FOR THE FIBER.

D R A W I N G

公开(公告)号：US20240262734A1

公开(公告)日：2024-08-08

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: 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：US20230303421A1

公开(公告)日：2023-09-28

申请号：US18040880

申请日：2021-08-05

Applicant: KOHOKU KOGYO Co., Ltd.

Inventor： Katsuhiro IWASAKI ,  Qiuyue PIAO ,  Yusuke KINOSHITA

IPC: C03B19/06 ,  G02B6/02

CPC classification number: C03B19/066 ,  G02B6/02042 ,  C03B2201/02 ,  C03B2203/14

Abstract: A preform for optical fiber made of a quartz glass sintered body which is made from quartz glass powder as a main raw material, in which at least a portion of the quartz glass sintered body is an opaque body, the opaque body has a visible light transmittance of 90% or less at a length of 5 mm or less in one direction, and the opaque body has a bulk density of 2.1 g/cm3 or more, or the opaque body has a visible light transmittance of 90% or less at a length of 5 mm or less in one direction, and the opaque body has an open porosity of 3.5% or less.

公开(公告)号：US09932260B2

公开(公告)日：2018-04-03

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: C03B37/027 ,  C03B37/025 ,  G02B6/036 ,  C03C25/10 ,  G02B6/02

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：US09840432B2

公开(公告)日：2017-12-12

申请号：US15029322

申请日：2014-10-14

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： David C. Jarmon

IPC: C03B19/02 ,  B28B1/24 ,  B28B3/02

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.

公开(公告)号：US20170341968A1

公开(公告)日：2017-11-30

申请号：US15602919

申请日：2017-05-23

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Christian SCHENK ,  Gerrit SCHEICH ,  Nadine TSCHOLITSCH

IPC: C03B20/00 ,  C03B19/06

CPC classification number: C03B20/00 ,  C03B19/066 ,  C03B2201/02

Abstract: A method for producing a pore-containing opaque quartz glass includes: (a) producing porous SiO2 granulate particles from synthetically produced SiO2, (b) thermally densifying the SiO2 granulate particles to form partly densified SiO2 granulate particles, (c) forming a dispersion from the partly densified SiO2 granulate particles, (d) comminuting the partly densified SiO2 granulate particles to form a slip containing comminuted SiO2 granulate particles, (e) shaping the slip into a shaped body and forming a porous SiO2 green body with a green density rG, and (f) sintering the SiO2 green body into opaque quartz glass. To produce opaque quartz glass that is also suited for the use of spray granulate, during step (b), partly densified SiO2 granulate particles are produced with a specific surface BET-(A) between 0.025 and 2.5 m2/g, and during step (d), comminuted SiO2 granulate particles are produced with a specific surface BET-(B) between 4 and 10 m2/g.

公开(公告)号：US09366807B2

公开(公告)日：2016-06-14

申请号：US14603488

申请日：2015-01-23

Applicant: FUJIKURA LTD.

Inventor： Shoji Tanigawa ,  Katsuhiro Takenaga

IPC: G02B6/00 ,  G02B6/02 ,  G02B6/036 ,  C03B37/012 ,  C03B37/027

CPC classification number: G02B6/02042 ,  C03B37/01222 ,  C03B37/02754 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/26 ,  C03B2203/34 ,  C03B2205/14

Abstract: Provided is a method of producing a preform 10P for a coupled multi-core fiber including: an arranging process P1 for arranging a plurality of core glass bodies 11R and a clad glass body 12R in such a way that the plurality of core glass bodies 11R are surrounded by the clad glass body 12R; and a collapsing process P2 for collapsing a gap between the core glass bodies 11R and the clad glass body 12R, wherein the respective core glass bodies 11R have outer regions 16 having a predetermined thickness from the periphery surfaces and made of silica glass undoped with germanium, and the clad glass body 12R is made of silica glass having a refractive index lower than a refractive index of the outer regions of the core glass bodies 11R.

公开(公告)号：US20160090319A1

公开(公告)日：2016-03-31

申请号：US14864103

申请日：2015-09-24

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Achim HOFMANN ,  Thomas KAYSER ,  Matthias OTTER ,  Bodo KÜHN

IPC: C03B19/06 ,  C03C3/06

CPC classification number: C03B19/066 ,  C03B19/108 ,  C03B19/1095 ,  C03B2201/02 ,  C03C3/06 ,  C03C11/00 ,  C03C12/00 ,  C03C2201/02

Abstract: A method for producing synthetic quartz glass by fusion of SiO2 granulate involves synthesizing amorphous SiO2 primary particles, granulating the amorphous SiO2 primary particles to form an open-pore SiO2 granulate, sintering the open-pore SiO2 granulate by heating in a sintering atmosphere at a sintering temperature and for a sintering period to form a densified SiO2 granulate, and melting the densified SiO2 granulate at a melting temperature to form the synthetic quartz glass. To provide an inexpensive production of low-bubble transparent components of quartz glass despite the use of still open-pore SiO2 granulate, the sintering atmosphere, sintering temperature and sintering duration are adjusted such that the densified SiO2 granulate still comprises open pores but manifests a material-specific infrared transmission T1700 at a wavelength of 1700 nm. This transmission is in the range of 50-95% of the infrared transmission T1700 of quartz glass granules of the same material.

Abstract translation: 通过SiO 2颗粒熔融制造合成石英玻璃的方法包括合成无定形SiO 2一次颗粒，造粒无定形SiO 2一次颗粒以形成开孔SiO 2颗粒，通过在烧结气氛中加热烧结开孔SiO 2颗粒 温度和烧结时间以形成致密化的SiO 2颗粒，并且在熔融温度下熔化致密的SiO 2颗粒以形成合成石英玻璃。 尽管使用仍然是开孔的SiO 2颗粒，为了提供石英玻璃的低气泡透明组分的廉价生产，调节烧结气氛，烧结温度和烧结持续时间，使得致密的SiO 2颗粒仍然包括开孔，但表现出一种材料 特定的红外透射T1700，波长为1700nm。 该透射率在相同材料的石英玻璃颗粒的红外透射率T1700的50-95％的范围内。