Nonoxide Glasses (e.g., Fluoride Glasses, Etc.) Patents (Class 501/40)
  • Patent number: 10414687
    Abstract: The present invention provides an infrared-transmitting glass that is a chalcogenide glass, has a reduced Ge content, can sufficiently cover atmospheric windows, is free from highly toxic elements, such as Se and As, and is suitable for mold forming. Specifically, the present invention provides an infrared-transmitting glass suitable for mold forming, comprising, in terms of molar concentration: 0 to 2% of Ge, 3 to 30% of Ga, 10 to 40% of Sb, 45 to 70% of S, 3 to 30% of at least one member selected from the group consisting of Sn, Ag, Cu, Te, and Cs, and 0 to 30% of at least one member selected from the group consisting of Cl, Br, and I.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: September 17, 2019
    Assignee: NATIONAL UNIVERSITY CORPORATION KYOTO INSTITUTE OF TECHNOLOGY
    Inventors: Kohei Kadono, Arifumi Okada, Takashi Wakasugi, Tomoyo Ashida
  • Patent number: 10131568
    Abstract: The present invention provides a method for synthesizing high optical quality multicomponent chalcogenide glasses without refractive index perturbations due to striae, phase separation or crystal formation using a two-zone furnace and multiple fining steps. The top and bottom zones are initially heated to the same temperature, and then a temperature gradient is created between the top zone and the bottom zone. The fining and cooling phase is divided into multiple steps with multiple temperature holds.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: November 20, 2018
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Vinh Q. Nguyen, Mikhail Kotov, Daniel J. Gibson, Shyam S. Bayya, Jasbinder S. Sanghera, Gryphon A. Drake
  • Patent number: 10065881
    Abstract: Provided is a thermally stable and inexpensive infrared transmitting glass. An infrared transmitting glass containing, in % by mole, 0 to 20% Ge (exclusive of 0% and 20%), 0 to 40% Sb (exclusive of 0%), 0 to 20% Bi (exclusive of 0%), and 50 to 80% S+Se+Te.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: September 4, 2018
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Tomoko Yamada, Fumio Sato
  • Patent number: 9981870
    Abstract: A non-stoichiometric glass composition having greater than or equal to about 50 mol. % to less than or equal to about 95 mol. % GeX2; greater than or equal to about 0.5 mol. % to less than or equal to about 35 mol. % Ga2X3, In2X3, or a combination thereof; and greater than or equal to about 0.5 mol. % to less than or equal to about 40 mol. % RX. R can be an alkaline earth metal. X can be present in a non-stoichiometric amount and can be selected from Se, Te, S, and combinations thereof. A method for making a non-stoichiometric glass including forming a GaGeX precursor material, grinding the precursor material, loading the ground precursor material with an alkaline earth metal component, and forming an alkaline earth metal GaGeX glass.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: May 29, 2018
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Stephen Charles Currie
  • Patent number: 9708210
    Abstract: A method to synthesize striae-free chalcogenide glass using melt processing. A striae-free chalcogenide glass with uniform refractive index.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: July 18, 2017
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Vinh Q. Nguyen, Mikhail Kotov, Daniel J. Gibson, Shyam S. Bayya, Jasbinder S. Sanghera
  • Patent number: 9634360
    Abstract: An all-solid-state secondary cell is provided comprising at least a positive electrode, a negative electrode and a solid electrolyte layer which is positioned between the positive electrode and the negative electrode. The positive electrode contains a positive electrode active material consisting of Na2Sx (x=1 to 8) and the solid electrolyte layer contains an ion conductive glass ceramics represented by a formula (I): Na2S-MxSy, wherein M is P, Si, Ge, B or Al; x and y each is an integer giving a stoichiometric ratio depending upon the type of M; and Na2S is contained in an amount of more than 67 mole % and less than 80 mole %.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: April 25, 2017
    Assignee: Japan Science and Technology Agency
    Inventors: Akitoshi Hayashi, Masahiro Tatsumisago
  • Patent number: 9595736
    Abstract: The lithium-ion conductor contains a crystal structure whose composition formula is represented by Li7+2xP1-xBxS6 (0<x?1). The crystal structure contains a LiS4 tetrahedron and a BS4 tetrahedron, a triangle window of the LiS4 tetrahedron through which lithium ions pass becomes large caused by the BS4 tetrahedron, and an ionic conductive path is expanded. Furthermore, lithium ions being a conductive carrier are added corresponding to B quantity x. Consequently, a lithium-ion conductor that exhibits excellent ion conductive property is realized. By using the lithium-ion conductor for a solid electrolyte, an all-solid lithium-ion secondary battery with high characteristics is realized.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: March 14, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Kenji Homma, Satoru Watanabe, Tamotsu Yamamoto, Tsutomu Tanaka
  • Patent number: 9379321
    Abstract: Embodiments of the present disclosure describe chalcogenide glass compositions and chalcogenide switch devices (CSD.) The compositions generally may include 3% to 15%, silicon, 8% to 16% germanium in, greater than 45% selenium, and 20% to 35% arsenic, by weight. The amount of silicon and germanium in a composition generally may include more than 10% by weight. CSDs may include various compositions of chalcogenide glass, and a plurality of them may be used in a memory device, such as die with a memory component, and may be used in various electronic components and systems. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: June 28, 2016
    Assignee: Intel Corporation
    Inventors: Kuo-Wei Chang, Paolo Fantini
  • Patent number: 9064615
    Abstract: The main object of the present invention is to provide a sulfide solid electrolyte material with less hydrogen sulfide generation amount. The present invention solves the above-mentioned problem by providing a sulfide solid electrolyte material obtained by using a raw material composition containing Li2S and sulfide of an element of the fourteenth family or the fifteenth family, characterized by not substantially containing cross-linking sulfur and Li2S.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: June 23, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masahiro Tatsumisago, Akitoshi Hayashi, Shigenori Hama, Koji Kawamoto, Yasushi Tsuchida, Hiroshi Nagase, Yukiyoshi Ueno, Masato Kamiya
  • Publication number: 20150038314
    Abstract: Boron-containing network sulfide glass which may be useful in IR transmitting applications, such as IR optics, laser or fiber amplifiers doped with rare earths with emission in the near IR, and methods of making the same.
    Type: Application
    Filed: June 29, 2012
    Publication date: February 5, 2015
    Inventors: Bruce Gardiner Aitken, Stephen Charles Currie, Randall Eugene Youngman
  • Publication number: 20130329179
    Abstract: Methods for preparing ferroelectric nanoparticles, liquid crystal compositions containing the ferroelectric nanoparticles, and electronic devices utilizing the ferroelectric nanoparticles are described. The methods of preparing the ferroelectric nanoparticles may include size-reducing a starting material comprising particles of a bulk intrinsically nonferroelectric glass to form glass nanoparticles having an average size of less than 20 nm, the glass nanoparticles comprising ferroelectric nanoparticles. Exemplary bulk intrinsically nonferroelectric glasses may include borosilicate glasses, tellurite glasses, bismuthate glasses, gallate glasses, and mixtures thereof, for example. The size reduction may be accomplished using ball milling with a solvent combination such as n-heptane and oleic acid. Liquid crystal compositions may include the ferroelectric nanoparticles in combination with a liquid crystal.
    Type: Application
    Filed: December 12, 2012
    Publication date: December 12, 2013
    Applicant: AZIMUTH CORPORATION
    Inventors: Gary Cook, Dean R. Evans, Sergey A. Basun
  • Patent number: 8603928
    Abstract: The purpose of the present invention is to use chalcogenide glass to produce an infrared transmitting glass that is more suitable for mold-forming than the conventional glasses. Specifically, the invention provides an infrared transmitting glass for mold forming which contains, in molar concentrations, 2-22% of Ge, 6-34% of at least one element selected from the group consisting of Sb and Bi, 1-20% of at least one element selected from the group consisting of Sn and Zn and 58-70% of at least one element chosen from the group comprising S, Se and Te.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: December 10, 2013
    Assignee: Isuzu Glass Co., Ltd.
    Inventors: Kunihiko Tani, Tatsuya Suetsugu, Naoko Kaga, Maki Tanigawa, Takeshi Morihara, Yoshinobu Matsumura, Kiyoshi Shinohara, Toshihiko Einishi, Kohei Kadono
  • Publication number: 20130278999
    Abstract: The invention relates to chalcogenide glass compositions for use in a lens system to balance thermal effects and chromatic effects and thereby provide an achromatic and athermal optical element that efficiently maintains achromatic performance across a broad temperature range. The glass composition is based on sulfur compounded with germanium, arsenic and/or gallium, and may further comprise halides of, for example, silver, zinc, or alkali metals. Alternatively, is based on selenium compounded with gallium, and preferably germanium, and contains chlorides and/or bromides of, for example, zinc, lead or alkali metals.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 24, 2013
    Inventor: Nathan Aaron CARLIE
  • Patent number: 8541324
    Abstract: IR-transmitting alkaline earth selenogallo- and/or selenoindo-germanate glasses that are capable of hosting luminescent rare earth dopants. The relatively high Ga and/or In content of most compositions serves to eliminate the typical clustering tendency of rare earth dopants in chalcogenide glasses, resulting in improved luminescence.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: September 24, 2013
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Stephen Charles Currie
  • Patent number: 8357313
    Abstract: The invention relates to a new class of luminescent substances (phosphorous) based on an universally dopable matrix made of an amorphous, at the most partially crystalline network of the elements P, Si, B, Al and N, preferably the composition Si3B3N7. Optical excitation and emission can be varied in this system over the entire practically relevant field by incorporation of any cationic activators, alone or in combination, but also by incorporation of oxygen as anionic component. This opens up the entire spectrum of use of luminescent substances, such as illumination systems or electronic screens.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: January 22, 2013
    Assignee: Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V.
    Inventors: Martin Jansen, Hasan Cakmak
  • Publication number: 20120238432
    Abstract: The present invention is generally directed to a method of making chalcogenide glasses including holding the melt in a vertical furnace to promote homogenization and mixing; slow cooling the melt at less than 10° C. per minute; and sequentially quenching the melt from the top down in a controlled manner. Additionally, the present invention provides for the materials produced by such method. The present invention is also directed to a process for removing oxygen and hydrogen impurities from chalcogenide glass components using dynamic distillation.
    Type: Application
    Filed: May 29, 2012
    Publication date: September 20, 2012
    Inventors: Vinh Q Nguyen, Jasbinder S. Sanghera, Shyam S. Bayya, Geofi Chin, Ishwar D. Aggarwal
  • Publication number: 20120135850
    Abstract: IR-transmitting alkaline earth selenogallo- and/or selenoindo-germanate glasses that are capable of hosting luminescent rare earth dopants. The relatively high Ga and/or In content of most compositions serves to eliminate the typical clustering tendency of rare earth dopants in chalcogenide glasses, resulting in improved luminescence.
    Type: Application
    Filed: November 29, 2011
    Publication date: May 31, 2012
    Inventors: Bruce Gardiner Aitken, Stephen Charles Currie
  • Patent number: 8143181
    Abstract: A process for producing an optical glass fiber from crystal-glass phase material. In one embodiment, the process includes the step of providing a molten crystal-glass phase material in a container, wherein the temperature of the molten crystal-glass phase material is at or above the melting temperature of the molten crystal-glass phase material, Tm, to allow the molten crystal-glass phase material is in liquid phase. The process further includes the step of cooling the molten crystal-glass phase material such that the temperature of the molten crystal-glass phase material, T1, is reduced to below Tm to cause the molten crystal-glass phase material to be changed from the liquid phase to a viscous melt.
    Type: Grant
    Filed: May 6, 2009
    Date of Patent: March 27, 2012
    Assignee: Northwestern University
    Inventors: Mercouri G. Kanatzidis, In Chung
  • Patent number: 7891215
    Abstract: A thermally stable chalcogenide glass, a process for making the same, and an optical fiber drawn therefrom are provided. A chalcogenide glass having the composition Ge(5?y)As(32?x)Se(59+x)Te(4+y) (0?y?1 and 0?x?2) is substantially free from crystallization when it is heated past the glass transition temperature Tg or drawn into optical fibers. A process for making the thermally stable chalcogenide glass includes purifying the components to remove oxides and scattering centers, batching the components in a preprocessed distillation ampoule, gettering oxygen impurities from the mixture, and heating the components to form a glass melt. An optical fiber formed from the chalcogenide glass is substantially free from crystallization and exhibits low signal loss in the near-infrared region, particularly at wavelengths of about 1.55 ?m.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: February 22, 2011
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Vinh Q Nguyen, Jasbinder S. Sanghera, Ishwar D. Aggarwal
  • Publication number: 20100310856
    Abstract: Embodiments relate to a transparent body comprising a matrix material and a plurality of non-metal particles positioned in the matrix material. The matrix material may be selected from the group consisting of glass materials, ceramic materials, and semiconductor materials. The non-metal particles may have a mean particle size of no greater than 150 nm. The non-metal particles may be present in the body at a volume fraction of no greater than 3 percent. The non-metal particles may have a composition different than that of the matrix. Other embodiments are described and claimed.
    Type: Application
    Filed: June 4, 2010
    Publication date: December 9, 2010
    Inventor: Stephen W. Freiman
  • Publication number: 20100307255
    Abstract: A physical quantity sensor device (10) having a structure in which a stress-sensitive body (1) of which the electric characteristics vary depending upon the application of stress and an insulator (2) having electric insulation are formed being closely adhered together, wherein the stress-sensitive body (1) comprises a thin glass film containing an electrically conductive element that is solidly dissolved therein as atoms, a method of manufacturing the physical quantity sensor device, a piezo-resistive film comprising a thin glass film containing ruthenium that is solidly dissolved therein as atoms, and a method of manufacturing the piezo-resistive film.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 9, 2010
    Applicant: DENSO CORPORATION
    Inventors: Masashi Totokawa, Masao Naito, Akihiro Takeichi
  • Publication number: 20100292066
    Abstract: A glass material for mold pressing, comprised of a core portion comprised of a multicomponent optical glass containing at least one readily reducible component selected from among W, Ti, Bi, and Nb, and a covering portion covering the surface of said core portion, comprised of a multicomponent glass containing none or a lower quantity of said readily reducible component than is contained in said core portion. A glass material for mold pressing comprising a core portion comprised of a fluorine-containing multicomponent optical glass and a covering portion covering the surface of said core portion, comprised of a multicomponent glass containing none or a lower quantity of fluorine than is contained in said core portion. A method for manufacturing an optical glass element comprising heat softening a glass material that has been preformed into a prescribed shape, and conducting press molding with a pressing mold, employing the above glass material of the invention.
    Type: Application
    Filed: March 28, 2007
    Publication date: November 18, 2010
    Inventors: Xuelu Zou, Yasuhiro Fujiwara, Hiroshi Kohno, Kohichiro Shiraishi
  • Publication number: 20100285946
    Abstract: The purpose of the present invention is to use chalcogenide glass to produce an infrared transmitting glass that is more suitable for mold-forming than the conventional glasses. Specifically, the invention provides an infrared transmitting glass for mold forming which contains, in molar concentrations, 2-22% of Ge, 6-34% of at least one element selected from the group consisting of Sb and Bi, 1-20% of at least one element selected from the group consisting of Sn and Zn and 58-70% of at least one element chosen from the group comprising S, Se and Te.
    Type: Application
    Filed: December 26, 2008
    Publication date: November 11, 2010
    Applicant: ISUZU GLASS CO. LTD.
    Inventors: Kunihiko Tani, Tatsuya Suetsugu, Naoko Kaga, Maki Tanigawa, Takeshi Morihara, Yoshinobu Matsumura, Kiyoshi Shinohara, Toshihiko Einishi, Kohei Kadono
  • Patent number: 7807595
    Abstract: This invention pertains to a chalcogenide glass of low optical loss that can be on the order of 30 dB/km or lower, and to a process for preparing the chalcogenide glass.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: October 5, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Vinh Q Nguyen, Jasbinder S Sanghera, Ishwar D Aggarwal
  • Patent number: 7767604
    Abstract: Ga—P—S glass compositions that may have application in infrared (IR) windows, waveguiding fibers, or as host glasses for luminescent dopants are described.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: August 3, 2010
    Assignee: Corning Incorporated
    Inventor: Bruce Gardiner Aitken
  • Patent number: 7670972
    Abstract: A chalcogenide glass composition composed of arsenic (As), selenium (Se), sulfur (S), and antimony (Sb) is presented. The composition includes arsenic in the range from 25% to 45% by weight relative to the total weight of the composition, selenium in the range from 40% to 65% by weight relative to the total weight of the composition, sulfur in the range from 2% to 15% by weight relative to the total weight of the composition, and antimony in the range from 0% to 15% by weight relative to the total weight of the composition. The variability of constituents on a weight basis is greater than the related arts, thus facilitating a broader range of design options. The glass composition is preferred to have a thermal expansion coefficient of about 23.6×10?6/° C., a temperature coefficient of refractive index less than about 1×10?6/° C., a glass transition temperature less than 200 degrees Celsius, and/or a glass softening temperature less than 250 degrees Celsius.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: March 2, 2010
    Assignee: Agiltron, Inc.
    Inventors: Jing Zhao, Maohe Li
  • Publication number: 20100022378
    Abstract: The present invention is generally directed to a method of making chalcogenide glasses including holding the melt in a vertical furnace to promote homogenization and mixing; slow cooling the melt at less than 10° C. per minute; and sequentially quenching the melt from the top down in a controlled manner. Additionally, the present invention provides for the materials produced by such method. The present invention is also directed to a process for removing oxygen and hydrogen impurities from chalcogenide glass components using dynamic distillation.
    Type: Application
    Filed: July 25, 2008
    Publication date: January 28, 2010
    Inventors: Vinh Q. Nguyen, Jasbinder S. Sanghera, Shyam S. Bayya, Geoff Chin, Ishwar D. Aggarwal
  • Publication number: 20090325775
    Abstract: A method for manufacturing a bioactive glass ceramic material is firstly to prepare a calcium phosphate series ceramic material and a nano-scaled titanium dioxide powder with a specific proportion of anatase type titanium dioxide structure. Then, the calcium phosphate series ceramic material and the nano-scaled titanium dioxide powder are mixed according to a specific proportion for obtaining a mixture. The mixture is then melted and quenched to form a biomedical glass. Finally, the biomedical glass can be further ground into a biomedical glass powder, and a heat treatment can be applied to recrystalize the powder so as to obtain the bioactive glass ceramic material. Also, the bioactive glass ceramic material can be further polarized into a electrified bioactive glass ceramic material which can promote the growth of a broken bone.
    Type: Application
    Filed: February 18, 2009
    Publication date: December 31, 2009
    Inventor: Nan-Hui Yeh
  • Publication number: 20090270241
    Abstract: Ga—P—S glass compositions that may have application in infrared (IR) windows, waveguiding fibers, or as host glasses for luminescent dopants are described.
    Type: Application
    Filed: April 29, 2008
    Publication date: October 29, 2009
    Inventor: Bruce Gardiner Aitken
  • Publication number: 20090162629
    Abstract: The invention is directed to Pd-based metallic glass alloys useful in biomedical applications having no Ni or Cu. Exemplary metallic glass alloys are represented by AaBb{(Si)100-c(D)c}d, where A may be selected from Pd, and combinations of Pd and Pt, B may be selected from Ag, Au, Co, Fe, and combinations thereof, and D may be selected from P, Ge, B, S. Also, a, b, c and d are atomic percentages, and a ranges from about 60 to about 90, b ranges from about 2 to about 18, d ranges from about 5 to about 25, and c is greater than 0 and less than 100.
    Type: Application
    Filed: July 14, 2008
    Publication date: June 25, 2009
    Inventors: Marios D. Demetriou, Aaron Wiest, William L. Johnson
  • Patent number: 7547652
    Abstract: The invention relates to vitreous compositions, in particular of the vitroceramic type, transparent to infrared, production and uses thereof. Said compositions comprise in mol. %: Ge 5-40, Ga<1, S+Se 40-85, Sb+As 4-40, MX 2-25, Ln 0-6, adjuncts 0-30, where M=at least one alkaline metal, selected from Rb, Cs, Na, K and Zn, X=at least one atom of chlorine, bromine or iodine, Ln=at least one rare earth and adjunct=at least one additive comprising at least one metal and/or at least one metal salt with the sum of all molar percentages of the components present in said composition being 100.
    Type: Grant
    Filed: July 5, 2004
    Date of Patent: June 16, 2009
    Assignees: Centre National De La Recherche Scientifique, Universite Rennes 1
    Inventors: Xianghua Zhang, Jacques Lucas, Hongli Ma, Jean-Luc Adam
  • Patent number: 7498284
    Abstract: A nitride glass with the general formula ?x?y?z is provided wherein ? is a glass modifier comprising at least one electropositive element. ? comprises Si, B, Ge, a and/or Al. ? is N or N together with O, whereby the atomic ratio of O:N is in the interval from 65:35 to 0:100.
    Type: Grant
    Filed: January 14, 2004
    Date of Patent: March 3, 2009
    Assignee: Diamorph AB
    Inventor: Saeid Esmaeilzadeh
  • Publication number: 20080287278
    Abstract: This invention pertains to a chalcogenide glass of low optical loss that can be on the order of 30 dB/km or lower, and to a process for preparing the chalcogenide glass.
    Type: Application
    Filed: July 31, 2008
    Publication date: November 20, 2008
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Vinh Q. Nguyen, Jasbinder S. Sanghera, Ishwar D. Aggarwal
  • Patent number: 7418835
    Abstract: This invention pertains to a chalcogenide glass of low optical loss that can be on the order of 30 dB/km or lower, and to a process for preparing the chalcogenide glass.
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: September 2, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Vinh Q. Nguyen, Jasbinder S. Sanghera, Ishwar D. Aggarwal
  • Patent number: 7330634
    Abstract: The invention is directed to chalcogenide glasses suitable for use in plastics forming processes. The glasses have the general formula YZ, where Y is Ge, As, Sb or a mixture of two or more of the sane; Z is Se, Te, or a mixture of Se+Te; and Y and Z are present in amounts (in atomic/element percent) in the range of Y=15-70% and Z=30-85%. The chalcogenide glasses of the invention have a 10,000 poise temperature of 400° C. and are resistant to crystallization when processed at high shear rates at their 10,000 poise temperature. The glasses can be used to make, among other items, molded telecommunication elements, lenses and infrared sensing devices.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: February 12, 2008
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Stephen Charles Currie, Beth Costello Monahan, Lung-Ming Wu, Everett William Coonan
  • Patent number: 7312168
    Abstract: In one aspect, the invention provides glass beads and optical devices comprising the glass beads. In other aspects, the invention provides methods of making said glass beads and rapid glass screening methods that use glass beads. Glass beads of the invention comprise greater than 80 weight percent silica, active rare earth dopant, and modifying dopant. In another embodiment the glass beads comprise greater than 80 weight percent silica and at least 5 weight percent germania. In another embodiment, glass beads comprise and from about 20 to about 90 anion mole percent of non-oxide anion.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: December 25, 2007
    Assignee: 3M Innovative Properties Company
    Inventor: Mark T. Anderson
  • Patent number: 7190875
    Abstract: In general, in one aspect, the disclosure features a fiber waveguide having a waveguide axis, including a core extending along the waveguide axis and a confinement region extending along the waveguide axis surrounding the core. The confinement region includes a periodic structure along a radial direction extending from the waveguide axis and each period in the periodic structure includes a layer of a chalcogenide glass and a layer of a polymer.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: March 13, 2007
    Assignee: OmniGuide, Inc.
    Inventors: Emilia Anderson, Wesley A. King, Yoel Fink, Lori Pressman
  • Patent number: 7157390
    Abstract: An infrared-transmitting glass material consists essentially of 35.3% wt. arsenic and 64.3% wt. selenium and has an expansion coefficient of 27×10?6/° C.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: January 2, 2007
    Assignee: Amorphous Materials, Inc.
    Inventor: Albert Ray Hilton, II
  • Patent number: 7116888
    Abstract: The invention is directed to chalcogenide glasses suitable for use in plastics forming processes. The glasses have the general formula YZ, where Y is Ge, As, Sb or a mixture of two or more of the same; Z is S, Se, Te, or a mixture of two or more of the same; and Y and Z are present in amounts (in atomic/element percent) in the range of Y=15–70% and Z=30–85%. The chalcogenide glasses of the invention have a 10,000 poise temperature of 400° C. and are resistant to crystallization when processed at high shear rates at their 10,000 poise temperature. The glasses can be used to make, among other items, molded telecommunication elements, lenses and infrared sensing devices.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: October 3, 2006
    Assignee: Corning, Incorporated
    Inventors: Bruce Gardiner Aitken, Stephen Charles Currie, Beth Costello Monahan, Lung-Ming Wu, Everett William Coonan
  • Patent number: 6984598
    Abstract: An infrared-transmitting glass material consists essentially of 35.3% wt. arsenic and 64.3% wt. selenium and has an expansion coefficient of 27×10?6/° C.
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: January 10, 2006
    Assignee: Amorphous Materials, Inc.
    Inventor: Albert Ray Hilton, II
  • Patent number: 6967249
    Abstract: Specific photochromic 3H-naphtho[2,1-b]-pyran compounds useful with various types of synthetic resin materials to form photochromic articles, especially ophthalmic lenses, and photochromic articles formed with such compounds. The compounds of the invention have especially long-wave absorption maxima in the open form thereof and enable violet to blue tints to be obtained when used in photochromic articles.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: November 22, 2005
    Assignee: Rodenstock GmbH
    Inventors: Claudia Mann, Manfred Melzig, Udo Weigand
  • Patent number: 6873593
    Abstract: A three-dimensional vertical memory with florescent photosensitive vitreous material is read and written to by a laser or respective lasers. The memory can be cerium and europium-doped fluorescent photosensitive glass, yttrium, europium and praseodymium-containing glass or TV-doped glass, etc. A confocal microscope may be used in the writing process and the memory may be scanned by rotating it.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: March 29, 2005
    Inventor: Eugen Pavel
  • Patent number: 6756333
    Abstract: The invention resides in a molecular, inorganic glass and a method of making the glass, the glass being vitreous and resistant to devitrification, that is composed, in substantial part at least, of thermally-stable, zero-dimensional clusters or molecules, composed of four atoms of arsenic and three atoms of sulfur, the glass further containing up to 12 atomic percent of germanium, adjoining clusters being bonded to each other primarily by van der Waals forces, and at least 95% of the glass composition consisting of 42-60% arsenic, 37-48% sulfur plus selenium, the selenium being 0-14%.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: June 29, 2004
    Assignee: Corning Incorporated
    Inventor: Bruce G. Aitken
  • Publication number: 20040096720
    Abstract: The present invention provides new compounds for use in proton exchange membranes which are able to operate in a wide variety of temperature ranges, including in the intermediate temperature range of about 100° C. to 700° C., and new and improved methods of making these compounds. The present invention also provides new and improved methods for making chalcogenide compounds, including, but not limited to, non-protonated sulfide, selenide and telluride compounds. In one embodiment, the proton conductivity of the compounds is between about 10−8 S/cm and 10−1 S/cm within a temperature range of between about −50 and 500° C.
    Type: Application
    Filed: July 25, 2003
    Publication date: May 20, 2004
    Inventors: Steven A. Poling, Steve W. Martin, Jacob T. Sutherland
  • Publication number: 20040079114
    Abstract: In one aspect, a method is provided for molding from glass complex optical components such as lenses, microlens, arrays of microlenses, and gratings or surface-relief diffusers having fine or hyperfine microstructures suitable for optical or electro-optical applications. In another aspect, mold masters or patterns, which define the profile of the optical components, made on metal alloys, particularly titanium or nickel alloys, or refractory compositions, with or without a non-reactive coating are provided. Given that molding optical components from oxide glasses has numerous drawbacks, it has been discovered in accordance with the invention that non-oxide glasses substantially eliminates these drawbacks. The non-oxide glasses, such as chalcogenide, chalcohalide, and halide glasses, may be used in the mold either in bulk, planar, or power forms. In the mold, the glass is heated to about 10-110° C., preferably about 50° C.
    Type: Application
    Filed: October 29, 2002
    Publication date: April 29, 2004
    Inventors: Bruce G. Aitken, Dilip K. Chatterjee, Daniel H. Raguin
  • Patent number: 6660672
    Abstract: There is provided alkaloid halogen-doped sulfide glasses for an optical amplifier and a fabricating method thereof. An alkaloid halogen-doped sulfide glass is formed of silica doped with a Ge—Ga—S three-component system, Pr3+, and an alkaloid halogen. To fabricate the alkaloid halogen-doped sulfide glass for an optical amplifier, silica doped with Ge, Ga, S, Pr3+, and an alkaloid halogen as a starting material is filled into a container. The container is sealed in a vacuum and the starting material in the container is fused by heating the container. The container is cooled and the starting material is sintered by heating the container at a glass transition temperature.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: December 9, 2003
    Assignee: Samsung Electronics Co LTD
    Inventors: Jong Heo, Dong-Chin Lee, Hye-Sun Lee, Sun-Tae Jung
  • Patent number: 6649326
    Abstract: The invention provides a UV below 200 nm lithography method. The invention includes providing a below 200 nm radiation source for producing <200-nm light, providing a plurality of mixed cubic fluoride crystal optical elements, with the fluoride crystals comprised of a combination of alkaline earth cations having different optical polarizabilities such as to produce an overall isotropic polarizability which minimizes the fluoride crystal spatial dispersion below 200 nm, transmitting <200-nm light through the cubic fluoride crystal optical elements, forming a lithography pattern with the light, reducing the lithography pattern and projecting the lithography pattern with the cubic fluoride crystal optical elements onto a UV radiation sensitive lithography printing medium to form a printed lithographic pattern. The invention includes making the mixed fluoride crystals and forming optical element therefrom.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: November 18, 2003
    Assignee: Corning Incorporated
    Inventors: Douglas C. Allan, Nicholas F. Borrelli, Charlene M. Smith, Robert W. Sparrow
  • Patent number: 6645893
    Abstract: A glass includes (a) a matrix containing a compound of at least one nonmetallic element; and (b) a particle selectively formed in the matrix. This particle is made of the at least one nonmetallic element. A process for producing such glass includes (a) providing a blank glass containing a compound of at least one nonmetallic element; (b) condensing a pulsed laser beam to a focal point in the blank glass such that a particle is selectively formed in the blank glass at a position corresponding to the focal point, the particle being made of the at least one nonmetallic element dissociated from the compound; and (c) moving the focal point in the blank glass to produce a pattern of the particle. The glass is suitable for optical functional elements.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: November 11, 2003
    Assignee: Central Glass Company, Limited
    Inventors: Kiyotaka Miura, Seiji Fujiwara, Takuya Teshima, Natsuya Nishimura, Yoshinori Kubota
  • Patent number: 6634189
    Abstract: A method of making chalcogenide glass which utilizes liquid encapsulation to prevent the evaporation loss of low boiling point or high vapor pressure glass components while the glass melt is being processed.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: October 21, 2003
    Assignee: Raytheon Company
    Inventors: James Jay Hudgens, John Michael Trombetta, William David Autery, Gregory Stewart Tyber
  • Publication number: 20030158028
    Abstract: No-bridging fluorine sites in calcium fluoride (CaF2) caused by lanthanide, transition metal or actinide impurities are eliminated by doping the CaF2 with sodium or another monovalent anionic dopant during or after growth of the crystal. This doping technique may be applied in the growth of other UV-transmissive fluoride materials in a family designated by a general formula Z:XFN where X is one or some combination of magnesium, calcium, zinc, strontium, cadmium, and barium, Z is one or some combination of lithium, sodium, potassium, rubidium, cesium, thallium, copper, silver and gold, and N is an integer in the range 1 through 6, and dependant on X. Elimination of the non-bridging fluorine sites can provide solarization resistant materials with low UV absorption even when the material contains sufficient lanthanide transition metal, or actinide impurities to cause the fluoride materials to be highly absorbing for UV radiation in the absence of the monovalent anion doping.
    Type: Application
    Filed: February 15, 2002
    Publication date: August 21, 2003
    Inventors: Dominic Loiacono, Dan Perlov