Patents by Inventor Albrecht Seidl

Albrecht Seidl 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: 20210003838
    Abstract: An optical converter wheel, a method of producing, and a method of using are provided. The wheel includes an inorganic converter material that converts light of a first wavelength into light of a second wavelength and a converter substrate. The converter substrate has a coefficient of thermal expansion CTEKS of 4 to 18×10?6 1/K in a range from 20° C.-300° C. and a thermal conductivity of at least 50 W/mK at 20° C.
    Type: Application
    Filed: July 6, 2020
    Publication date: January 7, 2021
    Applicant: SCHOTT AG
    Inventors: Volker Hagemann, Albrecht Seidl, Sylvia Biedenbender, Günter Weidmann
  • Publication number: 20210003909
    Abstract: A light source is provided that includes a laser operable to emit laser light at a wavelength in a range from 460 nanometers to 470 nanometers and a converter assembly arranged so as to absorb the laser light emitted by the laser and to emit photoluminescent light produced by the laser light and having a longer wavelength than the laser light. The converter assembly has a converter element with a ceramic doped with Eu3+ such that under irradiation of the laser light the converter assembly emits photoluminescent light in the red spectral range.
    Type: Application
    Filed: July 2, 2020
    Publication date: January 7, 2021
    Applicant: SCHOTT AG
    Inventors: Volker Hagemann, Albrecht Seidl
  • Publication number: 20200407263
    Abstract: A method for the production of glass or glass ceramic elements from flat glass or glass ceramic parts is provided where the edges of the glass or glass ceramic elements are treated by a combination of two processes. The flat glass or glass ceramic element with an edge surface connecting the two side surfaces is produced. The edge surface has at least one first elongated, strip-shaped edge region and at least one second elongated strip-shaped edge region, which are formed by a ground edge. The edge regions extend in the longitudinal direction along the edge surface and along the side surfaces. The first edge region has elongated parallel filamentary damages that are parallel and adjacent to one another and, in particular, spaced apart equidistantly, in the longitudinal direction thereof extending transversely to the side surfaces and along the surface of the first edge region.
    Type: Application
    Filed: September 15, 2020
    Publication date: December 31, 2020
    Applicant: SCHOTT AG
    Inventors: Volker PLAPPER, Fabian WAGNER, Andreas ORTNER, Albrecht SEIDL, Frank-Thomas LENTES
  • Patent number: 10807902
    Abstract: A method for the production of glass or glass ceramic elements from flat glass or glass ceramic parts is provided where the edges of the glass or glass ceramic elements are treated by a combination of two processes. The flat glass or glass ceramic element with an edge surface connecting the two side surfaces is produced. The edge surface has at least one first elongated, strip-shaped edge region and at least one second elongated strip-shaped edge region, which are formed by a ground edge. The edge regions extend in the longitudinal direction along the edge surface and along the side surfaces. The first edge region has elongated parallel filamentary damages that are parallel and adjacent to one another and, in particular, spaced apart equidistantly, in the longitudinal direction thereof extending transversely to the side surfaces and along the surface of the first edge region.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: October 20, 2020
    Assignee: SCHOTT AG
    Inventors: Volker Plapper, Fabian Wagner, Andreas Ortner, Albrecht Seidl, Frank-Thomas Lentes
  • Publication number: 20200290152
    Abstract: A method provides for producing modifications in or on a transparent workpiece using a laser processing device. The laser processing device has a short pulse or ultrashort pulse laser that emits laser radiation having a wavelength in the transparency range of the workpiece and which has a beam-shaping optical unit for beam shaping for focusing the laser radiation. The transparent workpiece is composed of a material that has a plurality of phases, of which at least two phases have different dielectric constants, of which in turn the one phase is a phase embedded in the form of particles, which phase is substantially surrounded by the other phase, and wherein the product of the volume of the particles specified in cubic nanometers and the ratio of the absolute value of the difference of the two different dielectric constants to the dielectric constant of the surrounding phase is greater than 500.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 17, 2020
    Applicant: Schott AG
    Inventors: Andreas Ortner, Niklas Bisch, Fabian Wagner, Albrecht Seidl, Frank-Thomas Lentes
  • Patent number: 10702948
    Abstract: A method provides for producing modifications in or on a transparent workpiece using a laser processing device. The laser processing device has a short pulse or ultrashort pulse laser that emits laser radiation having a wavelength in the transparency range of the workpiece and which has a beam-shaping optical unit for beam shaping for focusing the laser radiation. The transparent workpiece is composed of a material that has a plurality of phases, of which at least two phases have different dielectric constants, of which in turn the one phase is a phase embedded in the form of particles, which phase is substantially surrounded by the other phase, and wherein the product of the volume of the particles specified in cubic nanometers and the ratio of the absolute value of the difference of the two different dielectric constants to the dielectric constant of the surrounding phase is greater than 500.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: July 7, 2020
    Assignee: Schott AG
    Inventors: Andreas Ortner, Niklas Bisch, Fabian Wagner, Albrecht Seidl, Frank-Thomas Lentes
  • Publication number: 20200199007
    Abstract: A method is provided that includes producing filamentary damages in a volume of a glass or glass ceramic element adjacently aligned along a separation line and extend obliquely relative to a surface of the glass or glass ceramic element; and separating a portion from the glass or glass ceramic element along the separation line. The step of producing the filamentary damages includes directing laser pulses of an ultrashort pulse laser obliquely on the surface so that the laser pulses have a light propagation direction that extends obliquely relative to the surface and so that the filamentary damages resulting from the laser pulses have the longitudinal extension that extends obliquely relative to the surface; generating a plasma within the volume with the laser pulses; and displacing the laser pulses at points of incidence over the surface along the separation line.
    Type: Application
    Filed: February 28, 2020
    Publication date: June 25, 2020
    Applicant: SCHOTT AG
    Inventors: Andreas ORTNER, Albrecht SEIDL, Frank-Thomas LENTES, Fabian WAGNER
  • Publication number: 20200141551
    Abstract: A lighting device includes: at least one laser light source configured to emit a light beam; and a light conversion element associated with the at least one laser light source and arranged in the beam path of at least one light beam generated by at least one laser light source such that at least a portion of the light beam emitted by the at least one laser light source is directed onto the light conversion element, and in such a way that a laser light spot is illuminated on a face of the light conversion element facing the incident light beam, the light conversion element comprising a material which, through scattering, absorption and conversion of the incident laser light, emits and scatters light of a larger wavelength.
    Type: Application
    Filed: November 7, 2019
    Publication date: May 7, 2020
    Applicant: Schott AG
    Inventors: Albrecht Seidl, Volker Hagemann, Edgar Pawlowski, Frank Gindele
  • Publication number: 20200101561
    Abstract: Devices and methods for processing a workpiece along a predetermined processing line are provided. The device includes: a pulsed, polychromatic laser beam generator; an optical arrangement; and a moving device. The laser beam generator generates a laser beam along a beam direction. The optical arrangement generates a focal line along the beam direction. The optical arrangement has a chromatic aberration for wavelength-dependent focusing of the laser beam and a filter for wavelength-dependent filtering of the laser beam. The moving device generates relative movement between the laser beam and the workpiece along the predetermined processing line.
    Type: Application
    Filed: November 18, 2019
    Publication date: April 2, 2020
    Applicant: SCHOTT AG
    Inventors: Andreas ORTNER, Fabian WAGNER, Albrecht SEIDL, Simon SCHMITT, Frank-Thomas LENTES, Jens Ulrich THOMAS
  • Publication number: 20190322564
    Abstract: A method for separating a substrate of a brittle-hard material is provided. The method includes the steps of introducing defects into the substrate at a spacing from one another along a separation line using at least one pulsed laser beam; selecting an average spacing between neighboring defects and a number of laser pulses for generating a respective defect such that a breaking stress (?B) for separating the substrate along the separation line is smaller than a first reference stress (?R1) of the substrate and such that an edge strength ?K of the separation edge obtained after separation is greater than a second reference stress (?R2) of the substrate; and separating the substrate after introducing the defects by applying a stress along the separation line.
    Type: Application
    Filed: July 2, 2019
    Publication date: October 24, 2019
    Applicant: SCHOTT AG
    Inventors: Fabian WAGNER, Volker PLAPPER, Andreas ORTNER, Simon SCHMITT, Frank-Thomas LENTES, Albrecht SEIDL, Antal MAKACS, Patrick BARTHOLOME
  • Publication number: 20190195467
    Abstract: An optical converter is provided that has both a stable colour even at highest luminous powers and a high luminous efficiency. The optical converter includes a ceramic element that is fluorescent so that light of a first wavelength is absorbed in the ceramic element and fluorescent having longer wavelength light is emitted. The ceramic element includes pores spatially irregularly distributed within the ceramic element. The distribution of the pores within the ceramic element is inhomogeneous so that the radial distribution function of the pore locations deviates from unity and has a maximum at a characteristic distance, the maximum having a value of at least 1.2.
    Type: Application
    Filed: December 27, 2018
    Publication date: June 27, 2019
    Inventors: Keith ROZENBURG, Martin LETZ, Ulrike STOEHR, Albrecht SEIDL
  • Publication number: 20180370840
    Abstract: A method for the production of glass or glass ceramic elements from flat glass or glass ceramic parts is provided where the edges of the glass or glass ceramic elements are treated by a combination of two processes. The flat glass or glass ceramic element with an edge surface connecting the two side surfaces is produced. The edge surface has at least one first elongated, strip-shaped edge region and at least one second elongated strip-shaped edge region, which are formed by a ground edge. The edge regions extend in the longitudinal direction along the edge surface and along the side surfaces. The first edge region has elongated parallel filamentary damages that are parallel and adjacent to one another and, in particular, spaced apart equidistantly, in the longitudinal direction thereof extending transversely to the side surfaces and along the surface of the first edge region.
    Type: Application
    Filed: August 17, 2018
    Publication date: December 27, 2018
    Applicant: SCHOTT AG
    Inventors: Volker PLAPPER, Fabian WAGNER, Andreas ORTNER, Albrecht SEIDL, Frank-Thomas LENTES
  • Publication number: 20180221991
    Abstract: A method for filamentation of a dielectric workpiece has a workpiece with a thickness between 0.5 and 20 mm is provided. The workpiece has boundary surfaces delimiting the workpiece. The thickness of the workpiece varies spatially and/or at least one of the boundary surfaces delimiting the workpiece has at least one curvature with a radius of curvature between 0.1 ?m and 10 m. The dielectric workpiece can have a specially formed edge.
    Type: Application
    Filed: April 5, 2018
    Publication date: August 9, 2018
    Applicant: SCHOTT AG
    Inventors: Andreas ORTNER, Albrecht SEIDL, Frank-Thomas LENTES, Fabian WAGNER
  • Publication number: 20180134604
    Abstract: A method is provided that includes producing filamentary damages in a volume of a glass or glass ceramic element adjacently aligned along a separation line and extend obliquely relative to a surface of the glass or glass ceramic element; and separating a portion from the glass or glass ceramic element along the separation line. The step of producing the filamentary damages includes directing laser pulses of an ultrashort pulse laser obliquely on the surface so that the laser pulses have a light propagation direction that extends obliquely relative to the surface and so that the filamentary damages resulting from the laser pulses have the longitudinal extension that extends obliquely relative to the surface; generating a plasma within the volume with the laser pulses; and displacing the laser pulses at points of incidence over the surface along the separation line.
    Type: Application
    Filed: January 15, 2018
    Publication date: May 17, 2018
    Applicant: SCHOTT AG
    Inventors: Andreas ORTNER, Albrecht SEIDL, Frank-Thomas LENTES, Fabian WAGNER
  • Publication number: 20180134606
    Abstract: A method for separating a portion from a sheet glass element having a thickness of at least 2 millimeters along an intended separation line that divides the sheet glass element into the portion and a remaining main part is provided. The method includes producing filamentary damages comprising sub-micrometer hollow channels in a volume of the glass sheet element adjacently aligned along the separation line; and heating and/or cooling the glass sheet element to cause expansion and/or contraction so that the portion detaches from the main part along the separation line. The portion and the remaining main part each remain intact as a whole. The step of producing the filamentary damages includes generating a plasma within the volume with laser pulses of an ultrashort pulse laser; and displacing points of incidence of the laser pulses over a surface of the glass sheet element along the separation line.
    Type: Application
    Filed: January 15, 2018
    Publication date: May 17, 2018
    Applicant: SCHOTT AG
    Inventors: Fabian WAGNER, Andreas ORTNER, Albrecht SEIDL, Frank-Thomas LENTES, Jörn GERBAN, Simon SCHMITT
  • Publication number: 20180117708
    Abstract: A method provides for producing modifications in or on a transparent workpiece using a laser processing device. The laser processing device has a short pulse or ultrashort pulse laser that emits laser radiation having a wavelength in the transparency range of the workpiece and which has a beam-shaping optical unit for beam shaping for focusing the laser radiation. The transparent workpiece is composed of a material that has a plurality of phases, of which at least two phases have different dielectric constants, of which in turn the one phase is a phase embedded in the form of particles, which phase is substantially surrounded by the other phase, and wherein the product of the volume of the particles specified in cubic nanometers and the ratio of the absolute value of the difference of the two different dielectric constants to the dielectric constant of the surrounding phase is greater than 500.
    Type: Application
    Filed: December 29, 2017
    Publication date: May 3, 2018
    Applicant: Schott AG
    Inventors: Andreas Ortner, Niklas Bisch, Fabian Wagner, Albrecht Seidl, Frank-Thomas Lentes
  • Patent number: 8118248
    Abstract: A cutting mill for crushing broken polycrystalline needle-shaped silicon material, which contains particles that have an aspect ratio of AI with 5<AI ?30, and/or broken Si wafer consisting of laminar particles, wherein the cutting mill has an interior space that is lined with silicon and/or plastic, wherein the cutting mill has a rotational body configured as a multi-sided column, wherein said rotational body, in the regions facing the interior space of the cutting mill, is lined with silicon or features silicon, and wherein blades which run parallel with the longitudinal edges of the rotational body and are disposed in the rotational area of the rotational body, are arranged in the interior space of the cutting mill, and are adjustable with respect to the rotational body.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: February 21, 2012
    Assignee: Schott Solar AG
    Inventors: Hilmar Von Campe, Werner Buss, Ingo Schwirtlich, Albrecht Seidl
  • Patent number: 7955582
    Abstract: A method for producing crystallized silicon according to the EFG process by using a shaping part, between which part and a silicon melt, crystallized silicon grows in a growth zone. Inert gas and at least water vapor are fed into the silicon melt and/or growth zone, by means of which the oxygen content of the crystallized silicon is increased. From 50 to 250 ppm of vapor water is added to the inert gas, and the inert gas has an oxygen, CO and/or CO2 content of less than 20 ppm total.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: June 7, 2011
    Assignee: Schott Solar GmbH
    Inventors: Albrecht Seidl, Ingo Schwirtlich
  • Publication number: 20100258533
    Abstract: Methods and apparatus for separating of parts from workpieces is provided, in which at least one part is separated from a workpiece by means of radiation, in particular by means of laser radiation, and in which the radiation acts on the workpiece in a zone of interaction in such a way that regions of the workpiece are abraded, changed in their shape and/or are separated; in which the light intensity is received from the interaction zone and/or its vicinity and is transformed into electrical signals by a photoelectric sensor, and in which, with use of the electrical signals, it is determined when the processing procedure is to be terminated.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 14, 2010
    Inventors: Dirk Foertsch, Albrecht Seidl, Klaus Gerstner, Thorsten Grahl
  • Publication number: 20100213299
    Abstract: A method for recovering and/or recycling starting silicon material by crushing the starting material. The recovered or recycled material is melted, and crystals, e.g. as a silicon block, tube, or strip, are grown from the obtained melt. To use starting materials that have a high aspect ratio to be able to convey the same without any problem, broken polycrystalline needle-shaped Si material (material I) containing particles having an aspect ratio AI, 5<AI?30, is used as a starting material. Material I is crushed so that the crushed particles (material II) have an aspect ratio AII<3. Alternatively, a broken Si wafer is used that is composed of laminar particles which are crushed so that the crushed particles (material III) have an aspect ratio AIII<3.
    Type: Application
    Filed: March 8, 2010
    Publication date: August 26, 2010
    Inventors: Hilmar Von Campe, Werner Buss, Ingo Schwirtlich, Albrecht Seidl