公开(公告)号：US5547482A

公开(公告)日：1996-08-20

申请号：US270423

申请日：1994-07-05

Applicant: Julie B. Chalk ,  Jonathan C. Rowe ,  Paul M. Schermerhorn ,  Robert D. Shoup

Inventor： Julie B. Chalk ,  Jonathan C. Rowe ,  Paul M. Schermerhorn ,  Robert D. Shoup

IPC: C03B8/00 ,  C03B8/02 ,  C03B19/00 ,  C03B19/06 ,  C03B19/12 ,  C03B20/00 ,  C03B32/00 ,  C03C3/06

CPC classification number: C03C3/06 ,  C03B19/06 ,  C03B19/066 ,  C03B19/12 ,  C03B20/00 ,  C03B32/00 ,  C03B2201/08 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/50 ,  C03B2201/54 ,  C03C2201/06 ,  C03C2201/42 ,  C03C2203/26 ,  C03C2203/27 ,  C03C2203/50 ,  Y02P40/57

Abstract: This invention is directed to the production of essentially defect-free high purity fused silica glass articles, the method comprising the following steps: (a) forming a green body from silica particulates or a porous body of amorphous silica; (b) sintering said body in a chamber by raising the temperature of the chamber to above 1720.degree. C., while purging the chamber with helium or applying a vacuum to the chamber; and (c) consolidating the sintered body in a chamber by raising the temperature within the chamber to at least 1750.degree. C., introducing an inert gas into the chamber at a pressure less than about 6.9 MPa (1000 psig), and cooling the chamber while maintaining the pressurized atmosphere to a temperature at least below the annealing point of the glass. In the most preferred practice, a green body of silica particulates will be prepared via a sol-gel process.

Abstract translation: 本发明涉及生产基本上无缺陷的高纯度熔融石英玻璃制品，该方法包括以下步骤：（a）由二氧化硅微粒或无定形二氧化硅的多孔体形成生坯; （b）通过将腔室的温度升高到1720℃以上，同时用氦气吹扫腔室或向室内施加真空来在室内烧结所述主体; 和（c）通过将室内的温度升高至至少1750℃将烧结体固化在室中，在小于约6.9MPa（1000psig）的压力下将惰性气体引入室中，并冷却室 同时将加压气氛保持在至少低于玻璃退火点的温度。 在最优选的实践中，将通过溶胶 - 凝胶法制备生物体的二氧化硅颗粒。

公开(公告)号：US5254148A

公开(公告)日：1993-10-19

申请号：US4631

申请日：1993-01-14

Applicant: Minoru Inami ,  Satoshi Noda ,  Morinao Fukuoka ,  Yuko Kurasawa

Inventor： Minoru Inami ,  Satoshi Noda ,  Morinao Fukuoka ,  Yuko Kurasawa

IPC: C03B19/12 ,  C03B37/016

CPC classification number: C03B19/12 ,  C03B37/016 ,  C03B2201/30 ,  C03B2201/40 ,  C03B2201/42 ,  Y10S65/901

Abstract: A method of manufacturing distributed index optical elements is disclosed. The method comprises a step of preparing silica sol including at least one of metal dopants, a step of dipping, after subjecting the silica sol to a gelling treatment, the silica gel in an elute into which a part of metal constituents other than silicon including in the gel is selectively eluted, and a step of drying and sintering the silica gel.

Abstract translation: 公开了制造分布式索引光学元件的方法。 该方法包括制备包含金属掺杂剂中的至少一种的二氧化硅溶胶的步骤，在对二氧化硅溶胶进行胶凝处理之后进行浸渍的步骤，将洗脱液中的硅的一部分除了硅以外的金属成分 凝胶被选择性地洗脱，并且干燥和烧结硅胶的步骤。

公开(公告)号：US5180411A

公开(公告)日：1993-01-19

申请号：US779521

申请日：1991-10-18

Applicant: Marcella R. Backer ,  Ralston R. Cavender, Jr. ,  Peter C. Jones ,  James A. Murphy

Inventor： Marcella R. Backer ,  Ralston R. Cavender, Jr. ,  Peter C. Jones ,  James A. Murphy

IPC: C03B37/014 ,  C03C13/04 ,  G02B6/036

CPC classification number: G02B6/03622 ,  C03B37/014 ,  C03B37/01446 ,  C03C13/045 ,  C03B2201/42 ,  C03B2207/06 ,  C03B2207/12 ,  C03B2207/20 ,  Y10S65/90

Abstract: A method of making an optical waveguide fiber with a fatigue resistant TiO.sub.2 -SiO.sub.2 outer cladding, and a substantially glass blank for drawing into such fiber, wherein a glass soot TiO.sub.2 -SiO.sub.2 outermost layer, with an initial TiO.sub.2 concentration greater than 10.5 wt. %, is deposited on a preform, and the preform is exposed to an atmosphere of chlorine and oxygen at a high temperature, and the resulting TiO.sub.2 concentration in the outermost layer of the TiO.sub.2 -SiO.sub.2 outer cladding of the substantially glass blank is less than the initial TiO.sub.2 concentration. In the glass blank form, the outermost layer includes a substantial volume percentage of crystalline phases and in the fiber form, the outermost layer includes inhomogeneities.

Abstract translation: 一种制造具有耐疲劳性TiO 2 -SiO 2外包层的光波导纤维的方法，以及用于拉伸成这种纤维的基本玻璃坯料，其中初始TiO 2浓度大于10.5重量％的玻璃烟灰TiO 2 -SiO 2最外层。 ％，沉积在预成型体上，预成型体在高温下暴露于氯和氧气氛下，并且基本上玻璃坯料的TiO 2 -SiO 2外包层的最外层中得到的TiO 2浓度小于 初始TiO2浓度。 在玻璃空白形式中，最外层包括大体积百分比的结晶相，并且在纤维形式中，最外层包括不均匀性。

公开(公告)号：US5154744A

公开(公告)日：1992-10-13

申请号：US750616

申请日：1991-08-26

Applicant: Jeffery L. Blackwell ,  Carlton M. Truesdale

Inventor： Jeffery L. Blackwell ,  Carlton M. Truesdale

IPC: C03C13/04 ,  C03B37/014 ,  C03B37/018 ,  C03C1/00 ,  C03C3/06 ,  G02B6/00

CPC classification number: C03B37/01413 ,  C03C1/00 ,  C03C3/06 ,  C03B2201/42 ,  C03B2207/32 ,  C03B2207/81 ,  C03B2207/85 ,  C03B2207/87 ,  C03C2201/42 ,  C03C2203/40 ,  Y02P40/57 ,  Y10S65/901

Abstract: This invention relates to production of high purity fused silica glass doped with titania through oxidation or flame hydrolysis of a gaseous mixture and containing rutile crystals comprising a vaporizable, silicon-containing compound. Titanium-2-ethylhexyloxide, titanium cyclopentyloxide, and a titanium amide, or a combination thereof, constitute the operable titanium-containing compounds.

公开(公告)号：US5043002A

公开(公告)日：1991-08-27

申请号：US568230

申请日：1990-08-16

Applicant: Michael S. Dobbins ,  Robert E. McLay

Inventor： Michael S. Dobbins ,  Robert E. McLay

IPC: C03B8/04 ,  C03B19/14 ,  C03B20/00 ,  C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  G02B6/00

CPC classification number: C03B37/01413 ,  C03B19/1415 ,  C03B37/01446 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2207/06 ,  C03B2207/32 ,  C03B2207/50 ,  C03B2207/52 ,  C03B2207/85

Abstract: This invention relates to the production of high purity fused silica glass through oxidation or flame hydrolysis of a vaporizable silicon-containing compound. More particularly, this invention is directed to the use of vaporizable, halide-free compounds in said production. In the preferred practice, a polymethylsiloxane comprises said vaporizable, halide-free compound.

公开(公告)号：US4810276A

公开(公告)日：1989-03-07

申请号：US81755

申请日：1987-08-05

Applicant: John W. Gilliland

Inventor： John W. Gilliland

IPC: G02B6/00 ,  C03B37/014 ,  C03B37/018 ,  C03C25/00

CPC classification number: C03B37/01466 ,  C03B37/01446 ,  C03B37/01473 ,  C03B2201/08 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/42 ,  C03B2203/22

Abstract: A method is disclosed for making a step-index optical fiber having a steep refractive index gradient between core and cladding. Core glass particles comprising a base glass and a refractive index-increasing dopant are deposited on a mandrel. The mandrel is removed and the resultant soot preform is consolidated to form a core preform having a dopant-poor surface region. The core glass preform is stretched and the hole therein is closed to form a core bait rod. Cladding glass soot is deposited on the core bait rod at a density which is at least 0.5 g/cc. This is accomplished by directing the flame from an auxiliary burner onto the core bait rod immediately prior to the deposition of cladding soot thereon. The resultant preform is consolidated and drawn into an optical fiber. In another embodiment, the etched core preform is overclad with a layer of cladding glass, and the composite preform is stretched prior to applying a second overclad layer.

公开(公告)号：US4786618A

公开(公告)日：1988-11-22

申请号：US55632

申请日：1987-05-29

Applicant: Robert D. Shoup

Inventor： Robert D. Shoup

IPC: C03B8/02 ,  C03B19/12 ,  C03C3/06 ,  C03C3/076

CPC classification number: C03B19/12 ,  C03C3/06 ,  C03C3/076 ,  C03B2201/42 ,  C03C2201/42 ,  C03C2203/24

Abstract: Ultra-low thermal expansion TiO.sub.2 --SiO.sub.2 glasses are prepared using a sol-gel process wherein a stable alkali silicate solution comprising colloidal TiO.sub.2 and having a pH above 9 is gelled to form a semisolid silicate gel, the gel comprising homogeneously dispersed colloidal TiO.sub.2 but being essentially free of agglomerated TiO.sub.2 particles, washing the gel with aqueous media to remove alkali therefrom, and finally drying and consolidating the gel to a clear, void-free TiO.sub.2 --SiO.sub.2 glass which is substantially free of compositional inhomogeneities and has a thermal expansion coefficient below that of pure fused silica.

公开(公告)号：US4642129A

公开(公告)日：1987-02-10

申请号：US759233

申请日：1985-07-26

Applicant: Nikolaos Douklias ,  Josef Grabmaier

Inventor： Nikolaos Douklias ,  Josef Grabmaier

IPC: C03B37/014 ,  C03B37/012 ,  G02B6/00 ,  C03B37/025

CPC classification number: C03B37/01294 ,  C03B37/0128 ,  C03B37/01291 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/42

Abstract: An improved method of forming porous glass preforms by generating glass particles from a vapor phase and applying the particles onto a substrate characterized by generating the glass particles from a vapor phase in a separate operation, collecting the particles and then subsequently applying the previously collected particles onto a deposition surface of the substrate by creating a hot zone adjacent the deposition surface and projecting the particles as a stream through the hot zone and onto the deposition surface.

Abstract translation: 通过从气相产生玻璃颗粒并将颗粒施加到基材上，其特征在于在单独的操作中从气相产生玻璃颗粒，收集颗粒，然后将先前收集的颗粒应用到 通过产生邻近沉积表面的热区并将颗粒作为流穿过热区投射到沉积表面上，从而沉积基底的沉积表面。

公开(公告)号：US4341441B1

公开(公告)日：1986-05-06

申请号：US76174677

申请日：1977-01-24

IPC: C03B37/018 ,  G02B6/00 ,  G02B6/44

CPC classification number: C03B37/01861 ,  C03B37/01807 ,  C03B37/01853 ,  C03B37/01869 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2205/16 ,  G02B6/4492

公开(公告)号：US4574063A

公开(公告)日：1986-03-04

申请号：US508185

申请日：1983-06-27

Applicant: George W. Scherer

Inventor： George W. Scherer

IPC: C03B19/12 ,  C03B37/016 ,  C03C1/00 ,  C03C13/04 ,  C04B35/14

CPC classification number: C03B37/016 ,  C03B19/12 ,  C03C1/006 ,  C03C13/04 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/54 ,  Y10S65/901

Abstract: Suspensions of particulate oxides, e.g., fumed silica, are prepared in non-aqueous media and the suspensions are used to cast shapes for glass or ceramic products. The suspensions are formed and then caused to gel by means of an added gelling agent, and thereafter dried and, optionally, sintered to transparent glass or void-free ceramic products.

Abstract translation: 在非水介质中制备颗粒氧化物，例如热解法二氧化硅的悬浮液，并且悬浮液用于浇铸玻璃或陶瓷产品的形状。 形成悬浮液，然后通过加入的胶凝剂凝胶化，然后干燥并任选地烧结成透明玻璃或无空隙的陶瓷产品。