公开(公告)号：US20030041623A1

公开(公告)日：2003-03-06

申请号：US09913632

申请日：2001-08-16

Inventor： Waltraud Werdecker ,  Johann Leist

IPC: C03B019/09 ,  C03B020/00

CPC classification number: C03C3/06 ,  C03B19/09 ,  C03B19/095 ,  C03B2201/04 ,  C03C2201/02 ,  C03C2201/23 ,  C03C2201/80 ,  C30B15/10 ,  C30B35/002 ,  Y10S65/04 ,  Y10T428/131

Abstract: In order to provide a quartz glass crucible distinguished by high purity, high opacity and/or low transmissibility in the IR spectrum, it is proposed on the basis of a known quartz glass crucible of opaque quartz glass with a crucible body symmetrical in relation to a rotational axis, an outer zone (3) of opaque quartz glass transitioning radially toward the inside into an inner zone (2) of transparent quartz glass and with a density of at least 2.15 g/cm3, that according to the invention, the crucible body (1) be made of a synthetic SiO2 granulate with a specific BET surface ranging from 0.5 m2/g to 40 m2/g, a tamped volume of at least 0.8 g/cm3 and produced from at least partially porous agglomerates of SiO2 primary particles. A process for producing a quartz glass crucible of this kind is distinguished according to the invention in that for the production of the crucible a SiO2 granulate is used which was formed from at least partially porous agglomerates of synthetically manufactured SiO2 primary particles and that it has a specific BET surface ranging from 0.5 m2/g to 40 m2/g and a tamped volume of at least 0.8 g/cm3, the heating effected in such a way that a vitrification front advances from the inside outward while an inner zone (4) of transparent quartz glass is being formed.

Abstract translation: 为了提供在IR光谱中具有高纯度，高不透明性和/或低透射率的石英玻璃坩埚，提出了在已知的不透明石英玻璃的石英玻璃坩埚的基础上，坩埚体相对于 旋转轴线，不透明石英玻璃的外部区域（3），径向朝向内部转变成透明石英玻璃的内部区域（2），密度为至少2.15g / cm 3，根据本发明，坩埚体 （1）由具有0.5m 2 / g至40m 2 / g的比BET表面的合成SiO 2颗粒制成，捣实体积至少为0.8g / cm 3并由SiO 2一次颗粒的至少部分多孔的附聚物制成。 根据本发明，制造这种石英玻璃坩埚的方法的不同之处在于，对于坩埚的制造，使用由至少部分多孔的合成SiO 2原生颗粒的聚集体形成的SiO 2颗粒，并且其具有 比表面积为0.5m2 / g〜40m2 / g，捣实体积为0.8g / cm 3以上，使玻璃化前沿从内侧向前方前进，同时将内部区域（4） 正在形成透明的石英玻璃。

公开(公告)号：US20020181076A1

公开(公告)日：2002-12-05

申请号：US10094530

申请日：2002-03-08

Inventor： Scott R. Bickham ,  David G. Dalgoutte ,  James M. Grochocinski ,  Michael Vasilyev

IPC: H01S003/00

CPC classification number: G02B6/0285 ,  C03B37/01446 ,  C03B2201/04 ,  G02B6/02019 ,  G02B6/02261 ,  G02B6/0228 ,  G02B6/03677 ,  G02B6/29377 ,  H04B10/25253 ,  Y02P40/57

Abstract: An apparatus for transporting an optical signal is provided. The apparatus includes sections of optical fiber span with at least one section negative dispersion, negative slope fiber positioned at a distance from the output. A pump light emitting device optically coupled to the optical fiber span near the output is provided for generating an amplification signal.

Abstract translation: 提供一种用于传输光信号的装置。 该装置包括具有至少一个部分负色散的光纤跨段，负斜率光纤位于离输出一段距离处。 提供光学耦合到输出附近的光纤跨距的泵浦发光装置，用于产生放大信号。

公开(公告)号：US20020135305A1

公开(公告)日：2002-09-26

申请号：US10077954

申请日：2002-02-20

Inventor： Makoto Horiuchi ,  Makoto Kai ,  Mamoru Takeda

IPC: H01J017/18

CPC classification number: H01J61/302 ,  C03B23/0493 ,  C03B23/07 ,  C03B2201/04 ,  H01J9/247

Abstract: The present invention provides a long-life discharge lamp by removing the causes of lowering the service life of the discharge lamp owing to quartz glass constituting the discharge lamp and a gas sealed therein, and also provides a discharge lamp production method wherein the mixing of impurities affecting the service life of the discharge lamp is prevented. In the discharge lamp the content of hydrogen, oxygen and their compounds existing in the light-emitting portion is such that the maximum intensity of the light-emitting spectral intensities of the above impurities is {fraction (1/1000)} or less of the intensity of the main light-emitting spectrum of the noble gas when glow discharge occurs by supplying a current of 3 mA, and also the content of OH groups included in the quartz glass of the sealing portions is 5 ppm or less by weight.

公开(公告)号：US5702497A

公开(公告)日：1997-12-30

申请号：US541555

申请日：1995-10-10

Applicant: Seung-Hun Oh ,  Gyun-Hae Doh ,  Sun-Woong Kang

Inventor： Seung-Hun Oh ,  Gyun-Hae Doh ,  Sun-Woong Kang

IPC: G02B6/00 ,  C03B37/012 ,  C03B37/018 ,  C03C13/04 ,  G02B6/036 ,  C03B37/027

CPC classification number: C03B37/018 ,  C03B37/01211 ,  C03B2201/04 ,  C03B2203/22 ,  C03B2203/24 ,  Y02P40/57 ,  Y10T428/131 ,  Y10T428/1314 ,  Y10T428/1317 ,  Y10T428/24942

Abstract: Disclosed is an optical fiber capable of preventing an increase in an optical loss from occurring during fabrication and extraction of a single mode fiber preform and enhancement of an optical transmission efficiency, a method of producing the same comprising the steps of forming a first quartz robe having a first thermal conductivity, said first quartz tube being used as a clad; depositing a core layer and a clad layer inside the first quartz robe to form a preliminary perform by heating of the fist quartz robe; forming a second quartz tube having a second thermal conductivity lower than the first thermal conductivity; and depositing the second quartz tube to said preliminary preform by heating to produce the optical fiber preform. On embodiment, uses N overclad layers having thermal conductivites K.sub.x such that K.sub.0 >K.sub.1 >K.sub.2 . . . >K.sub.N and coefficients of viscosity .mu..sub.0

Abstract translation: 公开了一种光纤，其能够防止在单模光纤预制件的制造和提取期间发生光损耗的增加，并提高光传输效率，其制造方法包括以下步骤：形成第一石英袍，其具有 第一导热系数，所述第一石英管用作包层; 在第一石英袍内部沉积核心层和覆层以通过加热第一石英袍形成预备性能; 形成具有低于第一导热率的第二热导率的第二石英管; 以及通过加热将所述第二石英管沉积到所述初步预制件以产生所述光纤预制件。 在实施例中，使用具有导热系数Kx的N个外包层使得K0> K1> K2。 。 。 > KN，粘度系数μ0 <1。 。 。 小于N.

公开(公告)号：US5665133A

公开(公告)日：1997-09-09

申请号：US541467

申请日：1995-10-10

Applicant: Koichi Orii ,  Yukinobu Hara ,  Tomoyuki Akiyama ,  Koji Tsukuma ,  Yoshikazu Kikuchi

Inventor： Koichi Orii ,  Yukinobu Hara ,  Tomoyuki Akiyama ,  Koji Tsukuma ,  Yoshikazu Kikuchi

IPC: C03B8/00 ,  C03B19/06 ,  C03B20/00 ,  C03B32/02 ,  C03C3/06 ,  C03B19/00 ,  C03C15/00

CPC classification number: C03C3/06 ,  C03B19/06 ,  C03B19/066 ,  C03B20/00 ,  C03B32/02 ,  C03B2201/03 ,  C03B2201/04 ,  C03C2201/23 ,  C03C2203/10

Abstract: Pure transparent quartz glass is provided by molding powdery amorphous silica into an article, converting the molded powdery amorphous silica into crystalline silica of high-temperature type cristobalite structure, and then fusing the crystalline silica, the quartz glass containing impurities respectively at a content of not higher than 1 ppm, and an OH group at a content of not higher than 20 ppm, and having a viscosity of 10.sup.12.0 poise or more at 1200.degree. C. The quartz glass is transparent and has high purity, and is excellent in high temperature viscosity characteristics. The quartz glass can be produced at a low cost.

Abstract translation: 通过将粉状无定形二氧化硅模制成制品，将成型的粉末状无定形二氧化硅转化为高温型方英石结构的结晶二氧化硅，然后将结晶二氧化硅，含有杂质的石英玻璃分别以不含量的含量 高于1ppm，OH基为20ppm以下，1200℃时粘度为1012.0泊以上。石英玻璃透明，纯度高，耐高温粘度优异 特点 石英玻璃可以低成本生产。

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：US4038370A

公开(公告)日：1977-07-26

申请号：US616077

申请日：1975-09-23

Applicant: Tadashi Tokimoto ,  Yoshinobu Hiraishi

Inventor： Tadashi Tokimoto ,  Yoshinobu Hiraishi

IPC: C03B37/018 ,  C01B33/18 ,  C03B8/04 ,  C03B19/14 ,  C03B20/00 ,  C03C3/06 ,  G02B6/00 ,  C01B33/12

CPC classification number: C01B33/183 ,  C03B19/1415 ,  C03B19/1453 ,  C03C3/06 ,  C01P2006/60 ,  C01P2006/80 ,  C03B2201/02 ,  C03B2201/04 ,  C03B2207/32 ,  C03B2207/36 ,  C03C2201/02 ,  C03C2201/20 ,  C03C2203/10 ,  C03C2203/20 ,  C03C2203/40

Abstract: A method of producing high-purity transparent vitreous silica by supplying to a burner a high-purity silane type gas, and an inert gas, hydrogen gas and oxygen gas to effect the flame hydrolysis, comprising growing highly pure transparent vitreous silica at a controlled atmosphere of said flame that may increase the oxygen defect concentration of the vitreous silica, and thereafter heat-treating said formed body.

公开(公告)号：US11981594B2

公开(公告)日：2024-05-14

申请号：US17422897

申请日：2020-12-09

Applicant: ZHONGTIAN TECHNOLOGY ADVANCED MATERIALS CO., LTD. ,  JIANGSU ZHONGTIAN TECHNOLOGY CO., LTD.

Inventor： Ming-Ming Tang ,  Meng-Fei Wang ,  Yi-Gang Qian ,  Jun-Yi Ma ,  Xian-Gen Zhang ,  Yi-Chun Shen ,  Ya-Li Chen

IPC: C03B19/06 ,  C03B19/14 ,  C03C1/02 ,  C03C3/06 ,  C03B25/00

CPC classification number: C03B19/066 ,  C03B19/1453 ,  C03C1/022 ,  C03C3/06 ,  C03B25/00 ,  C03B2201/04 ,  C03C2201/02 ,  C03C2203/10 ,  C03C2203/40 ,  C03C2204/00

Abstract: A method for preparing quartz glass with low content of hydroxyl and high purity, includes providing silica powders including hydroxyl groups. The silica powders are dehydroxylated, which includes drying the silica powders at a first temperature, heating the silica powders up to a second temperature and introducing a first oxidizing gas including halogen gas, thereby obtaining first dehydroxylated powders, and heating the first dehydroxylated powders up to a third temperature and introducing a second oxidizing gas including oxygen or ozone, thereby obtaining second dehydroxylated powders. The second dehydroxylated powders are heated up to a fourth temperature to obtain a vitrified body. The vitrified body is cooled to obtain the quartz glass with low content of hydroxyl and high purity. The quartz glass prepared by the above method has low content of hydroxyl and high purity. A quartz glass with low content of hydroxyl and high purity is also provided.

公开(公告)号：US11757075B2

公开(公告)日：2023-09-12

申请号：US17559031

申请日：2021-12-22

Applicant: SHIN-ETSU QUARTZ PRODUCTS CO., LTD.

Inventor： Akira Fujinoki ,  Hiroyuki Nishimura ,  Akira Sato ,  Yuya Yokosawa ,  Tatsuya Mori

IPC: H01L33/58 ,  C03B19/06 ,  H01L25/075 ,  H01L33/48 ,  C03C3/06 ,  C03C4/00 ,  H01L33/32

CPC classification number: H01L33/58 ,  C03B19/066 ,  C03C3/06 ,  C03C4/0085 ,  H01L25/0753 ,  H01L33/486 ,  C03B2201/04 ,  C03C2201/23 ,  H01L33/32 ,  H01L2933/0058

Abstract: Provided is a silica glass member for hermetic sealing of an ultraviolet SMD LED element to be suitably used for hermetic sealing of, and as a transmission window material for, a surface mount-type package (SMD) having an ultraviolet LED mounted thereon and configured to emit ultraviolet light in a wavelength range of from 200 nm to 350 nm. The silica glass member for hermetic sealing includes a silica glass substrate, which is homogeneously and integrally formed without an internal boundary, wherein the silica glass substrate has: a first surface on an inside opposed to an SMD LED element; and a second surface on an outside corresponding to the first surface, wherein an outer peripheral portion of the first surface has formed therein a substrate joining plain surface for joining to the container outer periphery joining plain surface, and wherein the second surface on the outside corresponding to the first surface has formed therein a lens-like convex portion configured to process emitted light from the ultraviolet SMD LED element.

公开(公告)号：US11708290B2

公开(公告)日：2023-07-25

申请号：US16984379

申请日：2020-08-04

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Matthias Otter ,  Walter Lehmann ,  Michael Hünermann ,  Nils Christian Nielsen ,  Nigel Robert Whippey ,  Boris Gromann ,  Abdoul-Gafar Kpebane ,  Matthias Söhn

IPC: C03B20/00 ,  C03B37/012 ,  C03C3/06 ,  C03B17/04 ,  C03B19/10 ,  C03C12/00 ,  C03C1/02 ,  C03B37/027

CPC classification number: C03B20/00 ,  C03B17/04 ,  C03B19/106 ,  C03B19/1095 ,  C03B37/01211 ,  C03B37/027 ,  C03C1/022 ,  C03C1/026 ,  C03C3/06 ,  C03C12/00 ,  C03B2201/04 ,  C03C2201/02 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2201/26 ,  C03C2201/32 ,  C03C2201/40 ,  C03C2201/54 ,  C03C2203/10 ,  C03C2203/40 ,  C03C2203/44 ,  C03C2203/50

Abstract: One aspect relates to a process for the preparation of a quartz glass body, including providing a silicon dioxide granulate, wherein the silicon dioxide granulate was made from pyrogenic silicon dioxide powder and the silicon dioxide granulate has a BET surface area in a range from 20 to 40 m2/g, making a glass melt out of silicon dioxide granulate in an oven and making a quartz glass body out of at least part of the glass melt. The oven has at least a first and a further chamber connected to one another via a passage. The temperature in the first chamber is lower than the temperature in the further chambers. On aspect relates to a quartz glass body which is obtainable by this process. One aspect relates to a light guide, an illuminant and a formed body, which are each obtainable by further processing of the quartz glass body.