Patents by Inventor Stefanie Hansen

Stefanie Hansen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210340054
    Abstract: A glass has a low ratio of density ? and refractive index nd. The glass has a refractive index nd in a range of 1.80 to 2.00, an internal transmission of at least 80% (450 nm, 10 mm), a dispersion vd of 19.0 to 27.0, and a ratio ?/nd of <1.97.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 4, 2021
    Applicant: Schott AG
    Inventors: Bianca Schreder, Ute Wölfel, Stefanie Hansen
  • Publication number: 20210300814
    Abstract: A sealing glass is provided that includes SiO2, Al2O3 having a content of less than 2% by weight, is free of PbO except for unavoidable impurities, a coefficient of linear thermal expansion (?20-300 of more than 10*10?6/K, a dielectric constant (?r) in the range from at least 7.10 to not more than 7.80 at a measurement frequency of 1 MHz and a temperature of 25° C., and a glass transition temperature (Tg) in a range from 400 to 550° C.
    Type: Application
    Filed: March 31, 2021
    Publication date: September 30, 2021
    Applicant: SCHOTT AG
    Inventors: Bianca Schreder, Ute Wölfel, Stefanie Hansen
  • Publication number: 20210276915
    Abstract: Glasses are provided that are highly transparent and have very good resistance to solarization. The resistance to solarization is favored to a special extent by the production method. The concentrations of reduced polyvalent ion species are reduced by targeted use of bubbling with an oxidizing gas. Methods for producing glasses and to the uses thereof, particularly as core glasses in optical waveguides, are also provided.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 9, 2021
    Inventors: Simone Ritter, Uwe Kolberg, Stefanie Hansen, Thomas Weingaertner, Caroline de Luca, Thomas Kirsch, Peter-Franz Skiba
  • Patent number: 11084754
    Abstract: Glasses are provided that are highly transparent and have very good resistance to solarisation. The resistance to solarisation is favoured to a special extent by the production method. The concentrations of reduced polyvalent ion species are reduced by targeted use of bubbling with an oxidising gas. Methods for producing glasses and to the uses thereof, particularly as core glasses in optical waveguides, are also provided.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: August 10, 2021
    Assignee: SCHOTT AG
    Inventors: Simone Ritter, Uwe Kolberg, Stefanie Hansen, Thomas Weingaertner, Caroline de Luca, Thomas Kirsch, Peter-Franz Skiba
  • Patent number: 11034612
    Abstract: Glasses are provided that are highly transparent and have very good resistance to solarisation. The resistance to solarisation is favoured to a special extent by the production method. The concentrations of reduced polyvalent ion species are reduced by targeted use of bubbling with an oxidising gas. Methods for producing glasses and to the uses thereof, particularly as core glasses in optical waveguides, are also provided.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 15, 2021
    Assignee: SCHOTT AG
    Inventors: Simone Ritter, Uwe Kolberg, Stefanie Hansen, Thomas Weingaertner, Caroline de Luca, Thomas Kirsch, Peter-Franz Skiba
  • Publication number: 20210028605
    Abstract: The present disclosure relates to a glass having a refractive index of at least 1.7 as well as the use of the glass as a cladding glass of a solid-state laser. The disclosure also relates to a laser component comprising a core of doped sapphire and a cladding glass being placed on said core. The cladding glass is arranged on said core such that light exiting from the core due to parasitic laser activity can enter the cladding glass and can be absorbed there. Thus, a laser component with improved efficiency is obtained. The present disclosure also relates to a method for producing the laser component.
    Type: Application
    Filed: April 9, 2020
    Publication date: January 28, 2021
    Inventors: Antoine Carré, Alain Danielou, Stefanie Hansen, Dirk Apitz
  • Patent number: 10759692
    Abstract: The glasses of the present disclosure are highly transparent and have very good resistance to solarization. The resistance to solarization arises from the production method. The concentrations of reduced polyvalent ion species are reduced by targeted use of bubbling with an oxidizing gas. Methods for producing glasses and to the uses thereof, particularly as core glasses in optical waveguides, are also provided.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: September 1, 2020
    Assignee: Schott AG
    Inventors: Simone Ritter, Uwe Kolberg, Stefanie Hansen, Thomas Weingaertner, Caroline de Luca, Thomas Kirsch, Peter-Franz Skiba
  • Patent number: 10703669
    Abstract: The invention relates to a filter glass comprising Na2O and K2O and the following (in % by weight on an oxide basis): P2O5 58-68? Al2O3 5-10 CuO 8-15 V2O5 0.05-1??? SiO2 <2 F <1 Total R?O (R? = Mg, Ca, Sr, Ba) 0-11 Total R2O (R = Li, Na, K) ?3-17.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 7, 2020
    Assignee: SCHOTT AG
    Inventors: Bianca Schreder, Ute Woelfel, Stefanie Hansen
  • Patent number: 10389079
    Abstract: The present invention relates to a glass having a refractive index of at least 1.7 as well as the use of the glass as a cladding glass of a solid-state laser. The invention also relates to a laser component comprising a core of doped sapphire and a cladding glass being placed on said core. The cladding glass is arranged on said core such that light exiting from the core due to parasitic laser activity can enter the cladding glass and can be absorbed there. The present invention also relates to a method for producing the laser component.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: August 20, 2019
    Assignee: SCHOTT AG
    Inventors: Antoine Carré, Alain Danielou, Stefanie Hansen, Dirk Apitz
  • Publication number: 20190152841
    Abstract: The glasses of the present disclosure are highly transparent and have very good resistance to solarization. The resistance to solarization arises from the production method. The concentrations of reduced polyvalent ion species are reduced by targeted use of bubbling with an oxidizing gas. Methods for producing glasses and to the uses thereof, particularly as core glasses in optical waveguides, are also provided.
    Type: Application
    Filed: December 27, 2018
    Publication date: May 23, 2019
    Inventors: Simone Ritter, Uwe Kolberg, Stefanie Hansen, Thomas Weingaertner, Caroline de Luca, Thomas Kirsch, Peter-Franz Skiba
  • Publication number: 20180312424
    Abstract: The invention relates to a filter glass comprising Na2O and K2O and the following (in % by weight on an oxide basis): P2O5 58-68? Al2O3 5-10 CuO 8-15 V2O5 0.
    Type: Application
    Filed: April 27, 2018
    Publication date: November 1, 2018
    Applicant: SCHOTT AG
    Inventors: Bianca Schreder, Ute Woelfel, Stefanie Hansen
  • Patent number: 10106454
    Abstract: The present invention relates to optical glasses, in particular special short flint glasses (KZFS) and optical elements and components, which comprise these glasses, and use thereof and a method for producing such optical glasses. The optical glasses of the present invention are characterized by a pronounced short flint character and additionally by an excellent transmission and chemical resistance and workability. At that, the glasses of the invention can stand out due to lower costs of production caused by lower costs of raw materials and lower processing costs, due to their crystallization properties that can be handled also in smaller melting aggregates, and due to good environmental compatibility.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: October 23, 2018
    Assignee: SCHOTT AG
    Inventors: Simone Ritter, Bianca Schreder, Ute Woelfel, Stefanie Hansen
  • Publication number: 20180090904
    Abstract: The present invention relates to a glass having a refractive index of at least 1.7 as well as the use of the glass as a cladding glass of a solid-state laser. The invention also relates to a laser component comprising a core of doped sapphire and a cladding glass being placed on said core. The cladding glass is arranged on said core such that light exiting from the core due to parasitic laser activity can enter the cladding glass and can be absorbed there. The present invention also relates to a method for producing the laser component.
    Type: Application
    Filed: September 28, 2017
    Publication date: March 29, 2018
    Inventors: Antoine Carré, Alain Danielou, Stefanie Hansen, Dirk Apitz
  • Publication number: 20170137317
    Abstract: The present invention relates to optical glasses, in particular special short flint glasses (KZFS) and optical elements and components, which comprise these glasses, and use thereof and a method for producing such optical glasses. The optical glasses of the present invention are characterized by a pronounced short flint character and additionally by an excellent transmission and chemical resistance and workability. At that, the glasses of the invention can stand out due to lower costs of production caused by lower costs of raw materials and lower processing costs, due to their crystallization properties that can be handled also in smaller melting aggregates, and due to good environmental compatibility.
    Type: Application
    Filed: November 18, 2016
    Publication date: May 18, 2017
    Applicant: SCHOTT AG
    Inventors: Simone Ritter, Bianca Schreder, Ute Woelfel, Stefanie Hansen
  • Patent number: 9388069
    Abstract: Coloured glasses are provided that include a following composition in percent by weight, based on oxide of: P2O5 25-75? Al2O3 0.5-15?? MgO 0-10 CaO 0-10 BaO 0-35 SrO 0-16 Li2O 0-12 Na2O 0-12 K2O 0-12 CuO 1-20 F/F2 0-20 Sum RO (R = Mg, Ca, Sr, Ba) 0-40 Sum R2O (R = Li, Na, K) 0.5-20.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: July 12, 2016
    Assignee: SCHOTT AG
    Inventors: Bianca Schreder, Ute Woelfel, Ralf Biertuempfel, Stefanie Hansen
  • Publication number: 20160090324
    Abstract: A pore-free ceramic is provided that has a high modulus of elasticity and a low coefficient of thermal expansion. A process for producing a corresponding ceramic is also provided. The pore free ceramic is a dimensionally stable substrate material in applications subjected to temperature gradients including semiconductor manufacture.
    Type: Application
    Filed: September 25, 2015
    Publication date: March 31, 2016
    Applicant: SCHOTT AG
    Inventors: Bianca Schreder, Ute Wölfel, Stefanie Hansen
  • Publication number: 20140376868
    Abstract: Glasses are provided that are highly transparent and have very good resistance to solarisation. The resistance to solarisation is favoured to a special extent by the production method. The concentrations of reduced polyvalent ion species are reduced by targeted use of bubbling with an oxidising gas. Methods for producing glasses and to the uses thereof, particularly as core glasses in optical waveguides, are also provided.
    Type: Application
    Filed: July 11, 2014
    Publication date: December 25, 2014
    Inventors: Simone Ritter, Uwe Kolberg, Stefanie Hansen, Thomas Weingaertner, Caroline De Luca, Thomas Kirsch, Peter-Franz Skiba
  • Patent number: 8785335
    Abstract: Glass having an optimized degree of cross-linking of the phosphate component in the glass matrix is provided so that excellent weatherability is achieved. These glasses are fluorophosphate glasses that contain copper oxide as coloring component. The glasses can further contain coloring components and are obtainable in a method that includes a bubbling step.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: July 22, 2014
    Assignee: Schott AG
    Inventors: Simone Ritter, Bianca Schreder, Ute Woelfel, Stefanie Hansen
  • Publication number: 20140106168
    Abstract: The X-ray-opaque glass, which is free of BaO and PbO except for at most impurities, has a refractive index nd of from 1.50 to 1.58 and a high X-ray opacity with an aluminium equivalent thickness of at least 300%. The glass is based on a SiO2—Al2O3—SrO—R2O system with additions of La2O3 and ZrO2. The glass has very good chemical resistance and can be used, in particular, as a dental glass or as an optical glass.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 17, 2014
    Inventors: Simone Monika Ritter, Sabine Pichler-Wilhelm, Carina Dobler, Stefanie Hansen
  • Publication number: 20130344343
    Abstract: Coloured glasses are provided that include a following composition in percent by weight, based on oxide of: P2O5 25-75? Al2O3 0.5-15?? MgO 0-10 CaO 0-10 BaO 0-35 SrO 0-16 Li2O 0-12 Na2O 0-12 K2O 0-12 CuO 1-20 F/F2 0-20 Sum RO (R = Mg, Ca, Sr, Ba) 0-40 Sum R2O (R = Li, Na, K) 0.5-20.
    Type: Application
    Filed: June 21, 2013
    Publication date: December 26, 2013
    Inventors: Bianca SCHREDER, Ute WOELFEL, Ralf BIERTUEMPFEL, Stefanie HANSEN