Patents by Inventor Christopher KOELPER

Christopher KOELPER 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).

  • Patent number: 11371883
    Abstract: A semiconductor light source configured for a spectrometer may include at least one multipixel chip, at least one color setting component disposed optically downstream of at least one of emission region, and a drive unit. The color setting component may be configured for altering a spectral emission behavior of assigned emission regions. The drive unit may be configured to operate a plurality of mutually independently drivable emission regions successively, such that during operation thereof at least three spectrally narrowband individual spectra are emitted successively by the plurality of mutually independently drivable emission regions together with the associated color setting component from which individual spectra a total spectrum emitted by the semiconductor light source is constituted.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: June 28, 2022
    Assignee: OSRAM OLED GmbH
    Inventors: Christopher Koelper, Carola Diez, Tim Boescke, Thomas Kippes, Melanie Sternecker, Daniel Dietze
  • Publication number: 20200309597
    Abstract: A semiconductor light source configured for a spectrometer may include at least one multipixel chip, at least one color setting component disposed optically downstream of at least one of emission region, and a drive unit. The color setting component may be configured for altering a spectral emission behavior of assigned emission regions. The drive unit may be configured to operate a plurality of mutually independently drivable emission regions successively, such that during operation thereof at least three spectrally narrowband individual spectra are emitted successively by the plurality of mutually independently drivable emission regions together with the associated color setting component from which individual spectra a total spectrum emitted by the semiconductor light source is constituted.
    Type: Application
    Filed: October 9, 2018
    Publication date: October 1, 2020
    Inventors: Christopher Koelper, Carola Diez, Tim Boescke, Thomas Kippes, Melanie Sternecker, Daniel Dietze
  • Patent number: 10564470
    Abstract: In various embodiments, a backlighting device is provided. The backlighting device may include a plurality of semiconductor light sources arranged in a plane and serving for generating light radiation, and a side wall arranged laterally with respect to the semiconductor light sources, where the side wall is inclined with respect to the plane predefined by the semiconductor light sources, and wherein the side wall is retroreflective at a side which can be irradiated with light radiation of the semiconductor light sources.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: February 18, 2020
    Assignee: OSRAM OPTO Semiconductors GmbH
    Inventors: Felix Kimme, Christopher Koelper, Peter Brick
  • Patent number: 9691815
    Abstract: In at least one embodiment of the method, said method includes the following steps: A) producing radiation-active islands (4) having a semiconductor layer sequence (3) on a growth substrate (2), wherein the islands (4) each comprise at least one active zone (33) of the semiconductor layer sequence (3), and an average diameter of the islands (4), as viewed in a top view of the growth substrate, amounts to between 50 nm and 10 ?m inclusive, B) producing a separating layer (5) on a side of the islands (4) facing the growth substrate (2), wherein the separating layer (5) surrounds the islands (4) all around, as viewed in a top view of the growth substrate (2), C) attaching a carrier substrate (6) to a side of the islands (4) facing away from the growth substrate (2), and D) detaching the growth substrate (2) from the islands (4), wherein at least a part of the separating layer (5) is destroyed and/or at least temporarily softened during the detachment.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: June 27, 2017
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Martin Mandl, Martin Strassburg, Christopher Koelper, Alexander F. Pfeuffer, Patrick Rode
  • Patent number: 9683888
    Abstract: The invention relates to a method for measuring a light radiation (300) emitted by a light-emitting diode (210). In the method, an end (121) of an optical fiber (120) which is connected to a measuring device (130) is irradiated with the light radiation (300), which is emitted by the light-emitting diode (210), through an optical device (140), so that a portion of the light radiation (300) is coupled into the optical fiber (120) and is guided to the measuring device (130). The optical device (140) causes the light radiation (300) passing through the optical device (140) to be emitted in diffuse form in the direction of the end (121) of the optical fiber (120). The invention also relates to an apparatus (100) for measuring a light radiation (300) emitted by a light-emitting diode (210).
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: June 20, 2017
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Simeon Katz, Holger Specht, Alexander Linkov, Christopher Koelper
  • Publication number: 20170160590
    Abstract: In various embodiments, a backlighting device is provided. The backlighting device may include a plurality of semiconductor light sources arranged in a plane and serving for generating light radiation, and a side wall arranged laterally with respect to the semiconductor light sources, where the side wall is inclined with respect to the plane predefined by the semiconductor light sources, and wherein the side wall is retroreflective at a side which can be irradiated with light radiation of the semiconductor light sources.
    Type: Application
    Filed: May 29, 2015
    Publication date: June 8, 2017
    Applicant: OSRAM OPTO Semiconductors GmbH
    Inventors: Felix Kimme, Christopher Koelper, Peter Brick
  • Patent number: 9341881
    Abstract: Device for generating polarized electromagnetic radiation has a diffuser and a polarizer. The diffuser is arranged in a beam path of the electromagnetic radiation. The polarizer is arranged in the beam path of the electromagnetic radiation, to be precise downstream of the diffuser in the direction of propagation of the electromagnetic radiation. The polarizer has a reflective side facing the diffuser, said reflective side being at least partly reflective to the electromagnetic radiation. The polarizer transmits electromagnetic radiation having a predefined polarization and reflects electromagnetic radiation not having the predefined polarization back to the diffuser. The diffuser scatters, in a non-polarization-maintaining manner, at least one portion of the reflected-back electromagnetic radiation not having the predefined polarization.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: May 17, 2016
    Assignee: OSRAM GmbH
    Inventors: Christopher Koelper, Reiner Windisch, Christopher Wiesmann, Julius Muschaweck
  • Patent number: 9324920
    Abstract: An optoelectronic semiconductor component includes an optoelectronic semiconductor chip and an optical element. A connecting layer includes a transparent oxide arranged between the semiconductor chip and the optical element. The connecting layer directly adjoins the semiconductor chip and the optical element and fixes the optical element on the semiconductor chip. A method for fabricating an optoelectronic semiconductor component is furthermore specified.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: April 26, 2016
    Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Matthias Sabathil, Andreas Ploessl, Norwin von Malm, Alexander Linkov, Lutz Hoeppel, Christopher Koelper
  • Publication number: 20150279903
    Abstract: In at least one embodiment of the method, said method includes the following steps: A) producing radiation-active islands (4) having a semiconductor layer sequence (3) on a growth substrate (2), wherein the islands (4) each comprise at least one active zone (33) of the semiconductor layer sequence (3), and an average diameter of the islands (4), as viewed in a top view of the growth substrate, amounts to between 50 nm and 10 ?m inclusive, B) producing a separating layer (5) on a side of the islands (4) facing the growth substrate (2), wherein the separating layer (5) surrounds the islands (4) all around, as viewed in a top view of the growth substrate (2), C) attaching a carrier substrate (6) to a side of the islands (4) facing away from the growth substrate (2), and D) detaching the growth substrate (2) from the islands (4), wherein at least a part of the separating layer (5) is destroyed and/or at least temporarily softened during the detachment.
    Type: Application
    Filed: October 1, 2013
    Publication date: October 1, 2015
    Inventors: Martin Mandl, Martin Strassburg, Christopher Koelper, Alexander F. Pfeuffer, Patrick Rode
  • Publication number: 20150204718
    Abstract: The invention relates to a method for measuring a light radiation (300) emitted by a light-emitting diode (210). In the method, an end (121) of an optical fibre (120) which is connected to a measuring device (130) is irradiated with the light radiation (300), which is emitted by the light-emitting diode (210), through an optical device (140), so that a portion of the light radiation (300) is coupled into the optical fibre (120) and is guided to the measuring device (130). The optical device (140) causes the light radiation (300) passing through the optical device (140) to be emitted in diffuse form in the direction of the end (121) of the optical fibre (120). The invention also relates to an apparatus (100) for measuring a light radiation (300) emitted by a light-emitting diode (210).
    Type: Application
    Filed: August 22, 2013
    Publication date: July 23, 2015
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Simeon Katz, Holger Specht, Alexander Linkov, Christopher Koelper
  • Publication number: 20140225149
    Abstract: An optoelectronic semiconductor component includes an optoelectronic semiconductor chip and an optical element. A connecting layer includes a transparent oxide arranged between the semiconductor chip and the optical element. The connecting layer directly adjoins the semiconductor chip and the optical element and fixes the optical element on the semiconductor chip. A method for fabricating an optoelectronic semiconductor component is furthermore specified.
    Type: Application
    Filed: September 24, 2012
    Publication date: August 14, 2014
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Matthias Sabathil, Andreas Ploessl, Norwin von Malm, Alexander Linkov, Lutz Hoeppel, Christopher Koelper
  • Publication number: 20130342769
    Abstract: Device for generating polarized electromagnetic radiation has a diffuser and a polarizer. The diffuser is arranged in a beam path of the electromagnetic radiation. The polarizer is arranged in the beam path of the electromagnetic radiation, to be precise downstream of the diffuser in the direction of propagation of the electromagnetic radiation. The polarizer has a reflective side facing the diffuser, said reflective side being at least partly reflective to the electromagnetic radiation. The polarizer transmits electromagnetic radiation having a predefined polarization and reflects electromagnetic radiation not having the predefined polarization back to the diffuser. The diffuser scatters, in a non-polarization-maintaining manner, at least one portion of the reflected-back electromagnetic radiation not having the predefined polarization.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 26, 2013
    Inventors: Christopher KOELPER, Reiner WINDISCH, Christopher WIESMANN, Julius MUSCHAWECK