公开(公告)号：US5306322A

公开(公告)日：1994-04-26

申请号：US924767

申请日：1992-07-24

Applicant: Shinji Ishikawa ,  Yuichi Ohga ,  Ichiro Tsuchiya ,  Hiroo Kanamori ,  Hiroshi Yokota ,  Michihisa Kyoto

Inventor： Shinji Ishikawa ,  Yuichi Ohga ,  Ichiro Tsuchiya ,  Hiroo Kanamori ,  Hiroshi Yokota ,  Michihisa Kyoto

IPC: G02B6/00 ,  C03B37/014 ,  C03B37/023

CPC classification number: C03B37/01446 ,  C03B37/0146 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  Y10S65/16 ,  Y10S65/90

Abstract: The present invention providesa process for the dehydrating and purifying treatment by heating a porous glass preform for an optical fiber comprising passing the porous glass preform through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere comprising an inert gas and a silicon halogenide gas;a process for the fluorine-doping treatment by heating a porous glass preform for an optical fiber comprising passing a porous glass preform through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere comprising a fluorine compound gas and an inert gas; anda process for the vitrifying treatment by heating a porous glass preform for an optical fiber comprising passing the preform, which has been previously dehydrated and purified, through a muffle tube having a SiC layer at least on its inner surface at a high temperature under an atmosphere gas.

Abstract translation: 本发明提供了一种通过加热用于光纤的多孔玻璃预制件进行脱水和净化处理的方法，包括使多孔玻璃预制件通过具有SiC层的马弗管至少在其内表面上在高温下在包括 惰性气体和卤化硅气体; 通过加热用于光纤的多孔玻璃预制件进行氟掺杂处理的方法，包括使多孔玻璃预制件通过具有SiC层的马弗管至少在其内表面上在高温下在包含氟化合物气体 和惰性气体; 以及通过加热用于光纤的多孔玻璃预制件进行玻璃化处理的方法，包括使预先脱水和净化的预成型体至少在其内表面上通过具有SiC层的马弗管在高温下 气氛气体。

公开(公告)号：US5302556A

公开(公告)日：1994-04-12

申请号：US862799

申请日：1992-04-03

Applicant: Takaaki Shimizu ,  Masatoshi Takita

Inventor： Takaaki Shimizu ,  Masatoshi Takita

IPC: C03B8/02 ,  C03B19/06 ,  C03B19/10 ,  C03B19/12 ,  C03C1/00 ,  C03C3/06

CPC classification number: C03C3/06 ,  C03B19/06 ,  C03B19/066 ,  C03B19/1065 ,  C03B19/12 ,  C03B20/00 ,  C03C1/006 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/23 ,  C03C2201/23 ,  C03C2203/26 ,  Y10S65/90 ,  Y10T428/131 ,  Y10T428/1314

Abstract: A synthetic silica glass article made by hydrolyzing an alkoxysilane and thermally sintering the resulting silica; this synthetic silica glass article has a viscosity of not lower than 10.sup.10 poise at 1400.degree. C., and contains, as metallic impurities, less than 1 ppm of Al, less than 0.2 ppm of Fe, less than 0.2 ppm of Na, less than 0.2 ppm of K, less than 0.01 ppm of Li, less than 0.2 ppm of Ca, less than 0.02 ppm of Ti, less than 0.01 ppm of B, less than 0.01 ppm of P, less than 0.01 ppm of As.

Abstract translation: 一种通过水解烷氧基硅烷并热烧结所得二氧化硅制成的合成二氧化硅玻璃制品; 该合成石英玻璃制品在1400℃下的粘度不低于1010泊，并且作为金属杂质含有少于1ppm的Al，小于0.2ppm的Fe，小于0.2ppm的Na，小于 0.2ppm的K，小于0.01ppm的Li，小于0.2ppm的Ca，小于0.02ppm的Ti，小于0.01ppm的B，小于0.01ppm的P，小于0.01ppm的As。

公开(公告)号：EP3390303A2

公开(公告)日：2018-10-24

申请号：EP16816656.9

申请日：2016-12-16

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： WHIPPEY, Nigel Robert ,  GROMANN, Boris ,  SÖHN, Matthias

IPC: C03B20/00 ,  C03C3/06 ,  C03B37/012 ,  F27D7/02 ,  C03B17/04 ,  C03B5/06 ,  C03B19/10

CPC classification number: C03B20/00 ,  C03B5/06 ,  C03B17/04 ,  C03B19/108 ,  C03B37/01211 ,  C03B2201/07 ,  C03B2201/23 ,  C03C3/06 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2201/26 ,  C03C2201/32 ,  C03C2201/50 ,  C03C2203/40

Abstract: The invention relates to a method for producing a silica glass body, comprising the method steps: i.) providing silicon dioxide particles ii.) forming a glass melt from the silicon dioxide particles in a furnace and iii.) forming a silica glass body from at least one portion of the glass melt, wherein the furnace has a gas outlet, through which gas can be removed from the furnace and the dew point of the gas exiting the furnace through the gas outlet is less than 0°C. The invention also relates to a silica glass body that can be obtained by this method. In addition, the invention relates to a light guide, a lighting means and a shaped body, each of which can be obtained by subsequent processing of the silica glass body.

公开(公告)号：EP3040749B1

公开(公告)日：2017-07-19

申请号：EP15194929.4

申请日：2015-11-17

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： TAMURA, Yoshiaki ,  HARUNA, Tetsuya ,  SAITO, Yoshihiro ,  KAWAGUCHI, Yuki ,  HIRANO, Masaaki

IPC: G02B6/02 ,  C03C3/06 ,  C03B37/018 ,  C03B37/012 ,  C03B37/014

CPC classification number: G02B6/02 ,  C03B37/01211 ,  C03B37/014 ,  C03B37/01807 ,  C03B37/01861 ,  C03B37/01892 ,  C03B2201/06 ,  C03B2201/07 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2203/26 ,  C03B2205/40 ,  C03C3/06 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/50 ,  C03C2203/40

公开(公告)号：EP2145863B1

公开(公告)日：2016-02-17

申请号：EP08740907.4

申请日：2008-04-28

Applicant: Shin-Etsu Quartz Products Co., Ltd. ,  Opto-electronics Laboratory, Inc.

Inventor： UEDA, Tetsuji ,  OHUCHI, Michinari ,  NISHIMURA, Hiroyuki ,  FUJINOKI, Akira ,  NAKATSUKA, Masahiro ,  YOSHIDA, Hidetsugu

IPC: C03C3/06 ,  C03C4/12 ,  C03B19/14

CPC classification number: C03B19/1438 ,  C03B19/1453 ,  C03B2201/07 ,  C03B2201/23 ,  C03B2201/40 ,  C03C3/06 ,  C03C4/0071 ,  C03C4/085 ,  C03C4/12 ,  C03C23/0095 ,  C03C2201/23 ,  C03C2201/40 ,  C03C2203/44

公开(公告)号：EP2684851A3

公开(公告)日：2015-08-05

申请号：EP13175453.3

申请日：2013-07-08

Applicant: Shin-Etsu Chemical Co., Ltd.

Inventor： Maida, Shigeru ,  Otsuka, Hisatoshi

IPC: C03B19/14 ,  C03C3/06 ,  C03B32/00 ,  C03C4/00

CPC classification number: C03C3/04 ,  B29C33/38 ,  C03B19/1453 ,  C03B20/00 ,  C03B32/00 ,  C03B2201/07 ,  C03B2201/21 ,  C03B2201/23 ,  C03C3/06 ,  C03C2201/21 ,  C03C2201/23 ,  C03C2203/40 ,  C03C2203/52 ,  Y02P40/57

Abstract: Synthetic quartz glass is prepared by subjecting a silicon-providing feedstock to flame hydrolysis in oxyhydrogen flame, depositing silica fine particles on a rotating quartz glass target while concurrently melting and vitrifying them, thereby forming a synthetic quartz glass ingot, shaping, annealing, and effecting dehydrogenation treatment at a temperature of at least 600°C and a pressure of up to 5 Pa for a holding time of at least 12 hours. The synthetic quartz glass has an OH group concentration of at least 300 ppm and a Raman peak attributable to hydrogen molecule equal to or less than the detection limit of 8.5 x 10 15 molecules/cm 3 and thus has a high helium gas permeability and consequently is suited for forming nanoimprint molds.

Abstract translation: 合成石英玻璃是通过将提供硅的原料进行火焰水解在氢氧焰，在旋转的石英玻璃靶沉积二氧化硅微粒而同时熔化和玻璃化它们，从而形成一个合成的石英玻璃锭，成形，退火，及影响制备 在至少600℃的温度下脱氢处理和至多5帕的为至少12小时的保持时间的压力。 合成石英玻璃具有至少300ppm的OH基团浓度和拉曼峰值属性能够氢分子等于或小于8.5×10个15分子/ cm 3的检测限，因此具有较高的氦的气体渗透性并因此是 适合用于形成纳米压印模具。

公开(公告)号：EP2722317A1

公开(公告)日：2014-04-23

申请号：EP14150752.5

申请日：2012-01-26

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Haruna, Tetsuya ,  Hirano, Masaaki ,  Tamura, Yoshiaki

IPC: C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  C03C13/04

CPC classification number: C03B37/01211 ,  C03B37/01413 ,  C03B37/01807 ,  C03B37/01861 ,  C03B37/01869 ,  C03B2201/07 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  G02B6/02019 ,  G02B6/02242 ,  G02B6/02266 ,  G02B6/03611 ,  G02B6/03627

Abstract: There is provided a method for producing a glass optical fiber preform used in producing an optical fiber having low attenuation. The production method includes (1) a rod formation step of forming a glass rod of a silica glass containing an alkali metal element, the average concentration of the alkali metal element being 5 at.ppm or more, (2) a heat treatment step of heat-treating the glass rod, (3) a core part formation step of forming an alkali metal element-free silica glass layer having a chlorine concentration of 3000 atomic ppm or more around the perimeter of the glass rod heat-treated in the heat treatment step to form a core part including the glass rod and the silica glass layer, and (4) a cladding part formation step of forming a cladding part of a silica-based glass having a lower refractive index than the core part around the perimeter of the core part.

Abstract translation: 提供了用于制造具有低衰减的光纤的玻璃光纤预制件的制造方法。 制造方法包括：（1）形成含有碱金属元素的石英玻璃的玻璃棒的棒形成工序，碱金属元素的平均浓度为5atppm以上，（2）热处理工序 对玻璃棒进行热处理，（3）在热处理中热处理的玻璃棒的周围形成氯浓度为3000原子ppm以上的不含碱金属的无金属的二氧化硅玻璃层的芯部形成工序 步骤是形成包括玻璃棒和石英玻璃层的核心部分，以及（4）包层部分形成步骤，形成具有低于围绕着周边的芯部的折射率低的二氧化硅基玻璃的包层部分 核心部分。

公开(公告)号：EP1695375B1

公开(公告)日：2014-02-19

申请号：EP04807799.4

申请日：2004-12-17

Applicant: Asahi Glass Company, Limited

Inventor： IKUTA, Yoshiaki ,  AGATA, Noriyuki

IPC: H01L21/00 ,  C03C3/06 ,  C03B19/14

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/21 ,  C03B2201/23 ,  C03B2207/36 ,  Y02P40/57

公开(公告)号：EP2684851A2

公开(公告)日：2014-01-15

申请号：EP13175453.3

申请日：2013-07-08

Applicant: Shin-Etsu Chemical Co., Ltd.

Inventor： Maida, Shigeru ,  Otsuka, Hisatoshi

IPC: C03B19/14 ,  C03C3/06

CPC classification number: C03C3/04 ,  B29C33/38 ,  C03B19/1453 ,  C03B20/00 ,  C03B32/00 ,  C03B2201/07 ,  C03B2201/21 ,  C03B2201/23 ,  C03C3/06 ,  C03C2201/21 ,  C03C2201/23 ,  C03C2203/40 ,  C03C2203/52 ,  Y02P40/57

Abstract: Synthetic quartz glass is prepared by subjecting a silicon-providing feedstock to flame hydrolysis in oxyhydrogen flame, depositing silica fine particles on a rotating quartz glass target while concurrently melting and vitrifying them, thereby forming a synthetic quartz glass ingot, shaping, annealing, and effecting dehydrogenation treatment at a temperature of at least 600°C and a pressure of up to 5 Pa for a holding time of at least 12 hours. The synthetic quartz glass has an OH group concentration of at least 300 ppm and a Raman peak attributable to hydrogen molecule equal to or less than the detection limit of 8.5 x 10 15 molecules/cm 3 and thus has a high helium gas permeability and consequently is suited for forming nanoimprint molds.

公开(公告)号：EP2484643A1

公开(公告)日：2012-08-08

申请号：EP12153444.0

申请日：2012-02-01

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Tamura, Yoshiaki ,  Hirano, Masaaki ,  Haruna, Tetsuya

IPC: C03B37/018 ,  C03B37/012

CPC classification number: C03B37/01861 ,  C03B37/01228 ,  C03B37/01869 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50

Abstract: A method for producing an optical fiber preform according to the present invention includes an etching step of heating a silica-based glass tube using a heat source continuously traversed in the longitudinal direction of the glass tube to etch the inner surface portion of the glass tube containing impurities while an etching gas is allowed to flow into the glass tube. The glass tube has a maximum alkali metal concentration of 500 to 20,000 atomic ppm, a maximum chlorine concentration of 0 to 1000 atomic ppm, and a maximum fluorine concentration of 0 to 10,000 atomic ppm. In the etching step, the maximum temperature of the outer surface of the glass tube is in the range of 1900°C to 2250°C, and the heating time is set to a time equal to or less than a time (min) given by

Alternatively, in the etching step instead of setting the heating time, the traverse speed of the heat source is set to be in the range of 50 mm/min to 100 mm/min.

Abstract translation: 根据本发明的光纤预制件的制造方法包括：使用在玻璃管的长度方向上连续地穿过的热源来加热二氧化硅系玻璃管的蚀刻工序，以蚀刻含有玻璃管的玻璃管的内表面部分 允许蚀刻气体流入玻璃管中的杂质。 玻璃管的碱金属浓度最高为500〜20,000原子ppm，最大氯浓度为0〜1000原子ppm，最大氟浓度为0〜10,000原子ppm。 在蚀刻步骤中，玻璃管的外表面的最高温度在1900℃至2250℃的范围内，加热时间设定为等于或小于由 或者，在蚀刻步骤中，代替设定加热时间，将热源的横动速度设定为50mm / min〜100mm / min的范围。