公开(公告)号：US11912604B2

公开(公告)日：2024-02-27

申请号：US16993182

申请日：2020-08-13

Applicant: Sterlite Technologies Limited

Inventor： Sandeep Gaikwad ,  Badri Gomatam ,  Anand Pandey

IPC: C03B19/06 ,  C01B33/12 ,  C03C3/06 ,  C01B33/18

CPC classification number: C03B19/066 ,  C01B33/12 ,  C01B33/183 ,  C03B19/063 ,  C03C3/06 ,  C03B2201/03 ,  C03C2201/02

Abstract: The present disclosure provides a method for fabrication of a glass preform. The method includes production of soot particles in a combustion chamber using a precursor material. The heating of the precursor material produces the soot particles along with one or more impurities. In addition, the method includes agglomeration of the soot particles. Further, the method includes separation of the soot particles from the one or more impurities. Also, the separation of the soot particles is performed in a cyclone separator. Furthermore, the method includes collection of the soot particles. Also, the soot particles are compacted with facilitation of a preform compaction chamber. Also, the compacted preform is sintered with facilitation of a sintering furnace. The compaction of the soot particles followed by sintering results in formation of the glass preform.

公开(公告)号：US20190062198A1

公开(公告)日：2019-02-28

申请号：US16061122

申请日：2016-12-16

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Michael HÜNERMANN ,  Achim HOFMANN ,  Heinz FABIAN ,  Matthias OTTER ,  Thomas KAYSER

IPC: C03C3/06 ,  C03B20/00 ,  C03B37/027 ,  C03B19/06 ,  C03C25/1065 ,  C03B37/012 ,  C03C13/04 ,  G02B6/02

CPC classification number: C03C3/06 ,  C03B19/066 ,  C03B19/108 ,  C03B19/1095 ,  C03B20/00 ,  C03B37/01211 ,  C03B37/027 ,  C03B2201/03 ,  C03B2201/04 ,  C03C1/026 ,  C03C13/045 ,  C03C25/1065 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2201/32 ,  C03C2203/10 ,  C03C2213/00 ,  G02B6/02042 ,  G02B6/02395

Abstract: One aspect relates to a light guide comprising a jacket and one or more cores, wherein the jacket surrounds the cores. Each core has a refractive index profile perpendicular to the maximum extension of the core, wherein at least one refractive index nK of each refractive index profile is greater than the refractive index nM1 of the jacket. The jacket is made of silicon dioxide and has an OH content of less than 10 ppm, a chlorine content of less than 60 ppm, and an aluminium content of less than 200 ppb. One aspect also relates to a silicon dioxide granulate I, characterized by a chlorine content of less than 200 ppm and an aluminium content of less than 200 ppb, in each case based on the total weight of the silicon dioxide granulate I.

公开(公告)号：US09790120B2

公开(公告)日：2017-10-17

申请号：US14868858

申请日：2015-09-29

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Ian George Sayce ,  Martin Trommer

IPC: C03B37/018 ,  C03B20/00 ,  C03B19/14 ,  C23C16/44 ,  C03C3/06 ,  C08G77/04

CPC classification number: C03B20/00 ,  C03B19/14 ,  C03B19/1415 ,  C03B2201/03 ,  C03B2207/32 ,  C03C3/06 ,  C08G77/04 ,  C23C16/4402

Abstract: One aspect relates to a method for the production of synthetic quartz glass. Moreover, one aspect relates to a polyalkylsiloxane compound, which includes certain specifications with respect to chlorine content, metallic impurities content, and residual moisture, as well as the use thereof for the production of synthetic quartz glass. One aspect also relates to a synthetic quartz glass that can be obtained according to the method of one embodiment.

公开(公告)号：US09422187B1

公开(公告)日：2016-08-23

申请号：US14862771

申请日：2015-09-23

Applicant: Corning Incorporated

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

IPC: C03C3/06 ,  C03B19/14

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B19/1484 ,  C03B19/1492 ,  C03B2201/03 ,  C03C23/0025 ,  C03C2201/02 ,  C03C2201/3488

Abstract: A system and method for making a thin sintered silica sheet is provided. The method includes providing a soot deposition surface and forming a glass soot sheet by delivering a stream of glass soot particles from a soot generating device to the soot deposition surface. The method includes providing a sintering laser positioned to direct a laser beam onto the soot sheet and forming a sintered glass sheet from the glass soot sheet by delivering a laser beam from the sintering laser onto the glass soot sheet. The sintered glass sheet formed by the laser sintering system or method is thin, has low surfaces roughness and/or low contaminant levels.

Abstract translation: 提供一种用于制造薄的烧结二氧化硅片的系统和方法。 该方法包括提供烟灰沉积表面并通过将烟灰发生装置的玻璃烟灰颗粒流输送到烟灰沉积表面来形成玻璃烟灰片。 该方法包括提供烧结激光器，其定位成将激光束引导到烟灰片上，并通过将来自烧结激光器的激光束输送到玻璃烟炱片上，从玻璃烟炱片形成烧结玻璃片。 通过激光烧结体系或方法形成的烧结玻璃板薄，表面粗糙度低和/或污染物含量低。

公开(公告)号：US20120213685A1

公开(公告)日：2012-08-23

申请号：US13459624

申请日：2012-04-30

Applicant: Ryusuke MORITA ,  Takuya NAKAGAWA ,  Kei IWATA ,  Masaaki TAKATA

Inventor： Ryusuke MORITA ,  Takuya NAKAGAWA ,  Kei IWATA ,  Masaaki TAKATA

IPC: C01B33/12 ,  C03B20/00

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/03 ,  C03B2201/04 ,  C03C4/0085 ,  C03C2201/21 ,  C03C2201/23 ,  G03F1/50 ,  G03F7/70958 ,  Y02P40/57

Abstract: The present invention relates to an optical member for deep ultraviolet having a wavelength of 250 nm or shorter, containing a synthetic silica glass which does not substantially contain a halogen element, has a maximum OH group content of less than 10 ppm by weight, has contents of ODC (oxygen deficient centers) and E-prime center of each less than 1×1014 cm−3, does not substantially contain SiH and peroxy linkage, and has a fictive temperature of 1,050° C. or lower.

Abstract translation: 本发明涉及一种波长为250nm以下的深紫外线用光学构件，其含有基本上不含卤素元素的合成石英玻璃，其OH基含量的最大值小于10重量ppm，含有 的ODC（缺氧中心）和E-prime中心各自小于1×1014cm-3，基本上不含有SiH和过氧键，并且具有1050℃或更低的假想温度。

公开(公告)号：US08211817B2

公开(公告)日：2012-07-03

申请号：US12440683

申请日：2007-09-11

Applicant: Kazuyoshi Arai ,  Tsutomu Takahata ,  Shinkichi Hasimoto ,  Masahito Uchida ,  Nobusuke Yamada ,  Yoshinori Harada ,  Hideharu Horikoshi

Inventor： Kazuyoshi Arai ,  Tsutomu Takahata ,  Shinkichi Hasimoto ,  Masahito Uchida ,  Nobusuke Yamada ,  Yoshinori Harada ,  Hideharu Horikoshi

IPC: C03C3/06 ,  C03C10/16 ,  C03B27/012 ,  C03B19/01 ,  C03B19/00

CPC classification number: C03C4/0085 ,  C03B19/066 ,  C03B20/00 ,  C03B2201/03 ,  C03B2201/04 ,  C03C3/06 ,  C03C4/10 ,  C03C2201/23 ,  C03C2201/50 ,  C03C2201/54 ,  Y02P40/57

Abstract: Fused silica glass having an internal transmittance of UV with 245 nm wavelength, being at least 95% at 10 mm thickness, a OH content of not larger than 5 ppm, and a content of Li, Na, K, Mg, Ca and Cu each being smaller than 0.1 ppm. Preferably the glass has a viscosity coefficient at 1215° C. of at least 1011.5 Pa·s; and a Cu ion diffusion coefficient of not larger than 1×10−10 cm2/sec in a depth range of greater than 20 μm up to 100 μm, from the surface, when leaving to stand at 1050° C. in air for 24 hours. The glass is made by cristobalitizing powdery silica raw material; then, fusing the cristobalitized silica material in a non-reducing atmosphere. The glass exhibits a high transmittance of ultraviolet, visible and infrared rays, has high purity and heat resistance, and exhibits a reduced diffusion rate of metal impurities, therefore, it is suitable for various optical goods, semiconductor-production apparatus members, and liquid crystal display production apparatus members.

Abstract translation: 具有245nm波长的UV的内部透射率，10mm厚度至少95％，OH含量不大于5ppm，Li，Na，K，Mg，Ca和Cu的含量的熔融石英玻璃 小于0.1ppm。 优选地，玻璃的1215℃下的粘度系数至少为1011.5Pa·s; 在大于20μm至100μm的深度范围内的Cu离子扩散系数不大于1×10 -10 cm 2 / sec，在1050℃在空气中放置24小时时， 。 玻璃由粉状二氧化硅原料碎片化制成; 然后将非平衡二氧化硅材料在非还原气氛中熔融。 该玻璃的紫外线，可见光和红外线的透射率高，纯度高，耐热性高，金属杂质的扩散速度降低，因此适用于各种光学制品，半导体制造装置部件和液晶 展示生产设备成员。

公开(公告)号：US20090123358A1

公开(公告)日：2009-05-14

申请号：US11885743

申请日：2006-02-08

Applicant: Fulvio Costa ,  Giulio Boara ,  Andreas Ruckemann

Inventor： Fulvio Costa ,  Giulio Boara ,  Andreas Ruckemann

IPC: C01B33/12

CPC classification number: C03B19/12 ,  C03B2201/03 ,  C03C1/006 ,  C03C3/06 ,  C03C2201/02 ,  C03C2203/22 ,  C03C2203/26 ,  C03C2203/52

Abstract: Process for the production of monoliths by means of the sol-gel process, comprising the following steps: a. hydrolysis of an alkoxide in aqueous solution to form a hydrolysate and optionally evaporation to optimum concentration of the same, b. addition of an oxide prepared by the pyrogenic route, c. mixing of the hydrolysate of the alkoxide with the oxide prepared by the pyrogenic route to form a colloidal sol, d. optional removal of coarse contents from the colloidal sol, e. gelling of the colloidal sol in a mould, f. optional replacement of the water contained in the resulting aerogel by an organic solvent, g. drying of the aerogel, h. heat treatment of the dried aerogel, the coarse content being removed from the colloidal sol.

Abstract translation: 通过溶胶 - 凝胶法生产整料的方法，包括以下步骤：a。 在水溶液中水解醇盐以形成水解产物，并任选蒸发至最佳浓度，b。 添加通过热解法制备的氧化物，c。 将醇盐的水解产物与通过热解法制备的氧化物混合以形成胶体溶胶，d。 从胶体溶胶中任选去除粗含量， 胶体溶胶在模具中凝胶化，f。 用有机溶剂任选地替代所得气凝胶中所含的水，g。 干燥气凝胶，h。 干燥的气凝胶的热处理，从胶体溶胶中除去粗含量。

公开(公告)号：US07524780B2

公开(公告)日：2009-04-28

申请号：US11046435

申请日：2005-01-28

Applicant: Laura J. Ball ,  Bruno P. M. Baney ,  Dana C. Bookbinder ,  Keith L. House ,  Rostislav R. Khrapko ,  Lisa A. Moore ,  Susan L. Schiefelbein

Inventor： Laura J. Ball ,  Bruno P. M. Baney ,  Dana C. Bookbinder ,  Keith L. House ,  Rostislav R. Khrapko ,  Lisa A. Moore ,  Susan L. Schiefelbein

IPC: C03C13/04 ,  C03C3/076 ,  C03C3/06

CPC classification number: C03C3/06 ,  C03B37/01211 ,  C03B37/01228 ,  C03B37/01426 ,  C03B37/01807 ,  C03B37/01861 ,  C03B37/01892 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2203/26 ,  C03B2207/30 ,  C03B2207/90 ,  C03C25/602 ,  C03C25/607 ,  C03C25/68 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2201/50 ,  C03C2203/50 ,  G02B6/02

Abstract: A method of forming an alkali metal oxide-doped optical fiber by diffusing an alkali metal into a surface of a glass article is disclosed. The silica glass article may be in the form of a tube or a rod, or a collection of tubes or rods. The silica glass article containing the alkali metal, and impurities that may have been unintentionally diffused into the glass article, is etched to a depth sufficient to remove the impurities. The silica glass article may be further processed to form a complete optical fiber preform. The preform, when drawn into an optical fiber, exhibits a low attenuation.

Abstract translation: 公开了一种通过将碱金属扩散到玻璃制品的表面中形成掺杂碱金属氧化物的光纤的方法。 石英玻璃制品可以是管或棒的形式，或者是管或棒的集合。 含有碱金属的二氧化硅玻璃制品和可能已经无意地扩散到玻璃制品中的杂质被蚀刻到足以除去杂质的深度。 石英玻璃制品可以进一步加工以形成完整的光纤预型件。 当预成型件被拉入光纤时，表现出低的衰减。

公开(公告)号：US20070272685A1

公开(公告)日：2007-11-29

申请号：US11578393

申请日：2005-04-05

Applicant: Andreas Schreiber ,  Bodo Kuehn ,  Franz-Josef Schilling ,  Erich Arnold ,  Hans-Dieter Witzke

Inventor： Andreas Schreiber ,  Bodo Kuehn ,  Franz-Josef Schilling ,  Erich Arnold ,  Hans-Dieter Witzke

IPC: H01J61/38

CPC classification number: C03B19/01 ,  C03B19/1453 ,  C03B32/00 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/23 ,  C03C3/06

Abstract: In a known method, a quartz glass component is produced for a UV radiation source by melting SiO2-containing grain. Starting therefrom, to indicate an inexpensive method by means of which a quartz glass component is obtained that is characterized by high radiation resistance, it is suggested according to the invention that synthetically produced quartz crystals are molten to obtain a pre-product which consists of quartz glass containing hydroxyl groups in a number greater than the number of SiH groups, and that for the elimination of SiH groups the pre-product is subjected to an annealing treatment at a temperature of at least 850° C., whereby the quartz glass component is obtained. In the quartz glass component of the invention, the quartz glass is molten from synthetically produced quartz crystals, and it has a content of SiH groups of less than 5×1017 molecules/cm3.

Abstract translation: 在已知的方法中，通过熔化含SiO 2的晶粒来生产用于UV辐射源的石英玻璃组分。 从其开始，为了表明一种廉价的方法，通过该方法获得了以高耐辐射性为特征的石英玻璃组分，根据本发明提出，将合成的石英晶体熔融以获得由石英组成的预制品 含有数量大于SiH基数的羟基的玻璃，并且为了除去SiH基，将前产物在至少850℃的温度下进行退火处理，由此石英玻璃成分为 获得。 在本发明的石英玻璃组分中，石英玻璃从合成产生的石英晶体熔化，并且其SiH基含量小于5×10 17分子/ cm 3 / >。

公开(公告)号：US20060216527A1

公开(公告)日：2006-09-28

申请号：US11088076

申请日：2005-03-23

Applicant: Joseph Fletcher

Inventor： Joseph Fletcher

IPC: C03B37/028 ,  B32B17/06

CPC classification number: C03B37/01211 ,  C03B2201/03 ,  C03B2201/04 ,  Y10T428/2913

Abstract: An optical fiber preform is assembled by inserting core rod segments axially end to end inside of a first glass overclad tube having a first, relatively low concentration of a given impurity that contributes to signal attenuation in an optical fiber to be drawn from the preform. The first overclad tube with the contained core rod segments are inserted in a second glass tube having a second concentration of the given impurity which is higher than the first concentration. The wall thickness of the first overclad tube is preferably less than that of the second overclad tube, thus reducing the amount of high purity glass needed to form the first overclad tube and attendant manufacturing costs. The core rod segments may include salvageable remnants from a single long core rod produced, for example, by vapor axial deposition (VAD).

Abstract translation: 通过将芯棒片段轴向端对端插入第一玻璃外包层管内装配光纤预制件，第一玻璃外包管具有第一相对低浓度的给定杂质，这有助于从预成型件中拉出的光纤中的信号衰减。 将具有所述芯棒段的第一外包管插入具有高于第一浓度的给定杂质的第二浓度的第二玻璃管中。 第一外包层管的壁厚优选小于第二外包层管的壁厚，从而减少形成第一外包层管所需的高纯度玻璃的量和伴随的制造成本。 芯棒段可以包括来自例如通过气相轴向沉积（VAD）产生的单个长芯棒的可补救残余物。