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
  • Patent number: 11101251
    Abstract: An optoelectronic component includes a carrier, wherein the carrier includes a surface, reflective barriers are formed over the surface of the carrier, the reflective barriers divide the surface of the carrier into pixels, each pixel respectively includes at least one optoelectronic semiconductor chip arranged on the surface of the carrier, the optoelectronic semiconductor chip is configured to emit electromagnetic radiation, the optoelectronic semiconductor chip includes an upper side, the upper side faces away from the surface of the carrier, and a reflective covering is arranged on the upper side of the optoelectronic semiconductor chip.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: August 24, 2021
    Assignee: OSRAM OLED GmbH
    Inventors: Peter Brick, Christopher Wiesmann, Ulrich Streppel, David Racz, Christopher Kölper, Georg Roßbach
  • 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
  • Publication number: 20200144228
    Abstract: An optoelectronic component includes a carrier, wherein the carrier includes a surface, reflective barriers are formed over the surface of the carrier, the reflective barriers divide the surface of the carrier into pixels, each pixel respectively includes at least one optoelectronic semiconductor chip arranged on the surface of the carrier, the optoelectronic semiconductor chip is configured to emit electromagnetic radiation, the optoelectronic semiconductor chip includes an upper side, the upper side faces away from the surface of the carrier, and a reflective covering is arranged on the upper side of the optoelectronic semiconductor chip.
    Type: Application
    Filed: June 22, 2018
    Publication date: May 7, 2020
    Inventors: Peter Brick, Christopher Wiesmann, Ulrich Streppel, David Racz, Christopher Kölper, Georg Roßbach
  • 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: 10243115
    Abstract: A semiconductor component has a semiconductor chip that generates an electromagnetic primary radiation having a first peak wavelength, having a first conversion element, which has a quantum structure, wherein the quantum structure is formed to partially shift the primary radiation to a secondary radiation having a second peak wavelength, wherein a second conversion element is provided which has a luminescent material, wherein the luminescent material is formed to shift an electromagnetic radiation to a tertiary radiation having a dominant wavelength, wherein the first conversion element is formed to generate secondary radiation, which has a lower peak wavelength than the dominant wavelength of the tertiary radiation.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: March 26, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Philipp Pust, David Racz, Christopher Kölper
  • Publication number: 20180358516
    Abstract: A semiconductor component has a semiconductor chip that generates an electromagnetic primary radiation having a first peak wavelength, having a first conversion element, which has a quantum structure, wherein the quantum structure is formed to partially shift the primary radiation to a secondary radiation having a second peak wavelength, wherein a second conversion element is provided which has a luminescent material, wherein the luminescent material is formed to shift an electromagnetic radiation to a tertiary radiation having a dominant wavelength, wherein the first conversion element is formed to generate secondary radiation, which has a lower peak wavelength than the dominant wavelength of the tertiary radiation.
    Type: Application
    Filed: November 17, 2016
    Publication date: December 13, 2018
    Inventors: Philipp Pust, David Racz, Christopher Kölper
  • Patent number: 9735319
    Abstract: An optoelectronic semiconductor chip includes a multiplicity of active regions arranged at a distance from one another, and a continuous current spreading layer, wherein at least one of the active regions has a main extension direction, one of the active regions has a core region formed with a first semiconductor material, the active region has an active layer covering the core region at least in directions transversely with respect to the main extension direction of the active region, the active region has a cover layer formed with a second semiconductor material and covers the active layer at least in directions transversely with respect to the main extension direction of the active region, and the current spreading layer covers all cover layers of the active region.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: August 15, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Martin Mandl, Martin Strassburg, Christopher Kölper, Alexander F. Pfeuffer, Patrick Rode
  • 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
  • Publication number: 20160133794
    Abstract: An optoelectronic semiconductor chip includes a multiplicity of active regions arranged at a distance from one another, and a continuous current spreading layer, wherein at least one of the active regions has a main extension direction, one of the active regions has a core region formed with a first semiconductor material, the active region has an active layer covering the core region at least in directions transversely with respect to the main extension direction of the active region, the active region has a cover layer formed with a second semiconductor material and covers the active layer at least in directions transversely with respect to the main extension direction of the active region, and the current spreading layer covers all cover layers of the active region.
    Type: Application
    Filed: January 5, 2016
    Publication date: May 12, 2016
    Inventors: Martin Mandl, Martin Strassburg, Christopher Kölper, Alexander F. Pfeuffer, Patrick Rode
  • 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
  • Patent number: 9257611
    Abstract: An optoelectronic semiconductor chip includes a multiplicity of active regions, arranged at a distance from one another, and a reflective layer arranged at an underside of the multiplicity of active regions, wherein at least one of the active regions has a main extension direction, one of the active regions has a core region formed with a first semiconductor material, the active region has an active layer, covering the core region at least in directions transversely with respect to the main extension direction of the active region, the active region has a cover layer formed with a second semiconductor material and covers the active layer at least in directions transversely with respect to the main extension direction of the active region, and the reflective layer reflects electromagnetic radiation generated during operation in the active layer.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: February 9, 2016
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Martin Mandl, Martin Strassburg, Christopher Kölper, Alexander F. Pfeuffer, Patrick Rode
  • Patent number: 9257596
    Abstract: A light-emitting diode chip comprising:—a semiconductor body (1) having a plurality of active regions (2), wherein—at least one of the active regions (2) has at least two subregions (21 . . . 28),—the active region (2) has at least one barrier region (3) arranged between two adjacent subregions (21 . . . 28) of said at least two subregions (21 . . . 28),—the at least two subregions (21 . . . 28) emit light of mutually different colour during operation of the light-emitting diode chip,—in at least one of the subregions (21 . . . 28) the emission of light is generated electrically, and—the barrier region (3) is configured to hinder a thermally activated redistribution of charge carriers between the two adjacent subregions (21 . . . 28), is specified.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: February 9, 2016
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Martin Straβburg, Enrique Calleja-Pardo, Steven Albert, Ana Maria Bengoechea Encabo, Miguel Angel Sanchez-Garcia, Martin Mandl, Christopher Kölper
  • Patent number: 9214600
    Abstract: An optoelectronic semiconductor chip includes a number active regions that are arranged at a distance from each other and a substrate that is arranged on an underside of the active regions. One of the active regions has a main extension direction. The active region has a core region that is formed using a first semiconductor material. The active region has an active layer that covers the core region at least in directions perpendicular to the main extension direction of the active region. The active region has a cover layer that is formed using a second semiconductor material and covers the active layer at least in directions perpendicular to the main extension direction of the active region.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: December 15, 2015
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Martin Mandl, Martin Straβburg, Christopher Kölper, Alexander Pfeuffer, Patrick Rode, Johannes Ledig, Richard Neumann, Andreas Waag
  • 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
  • Patent number: 8969900
    Abstract: An optoelectronic semiconductor chip includes a semiconductor layer stack having an active layer that generates radiation, and a radiation emission side, and a conversion layer disposed on the radiation emission side of the semiconductor layer stack, wherein the conversion layer converts at least a portion of the radiation, which is emitted by the active layer, into radiation of a different wavelength, the radiation emission side of the semiconductor layer stack has a first nanostructuring, and the conversion layer is disposed in this first nanostructuring.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: March 3, 2015
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Matthias Sabathil, Alexander Linkov, Christopher Kölper, Martin Straβburg, Norwin von Malm