Patents by Inventor Bernhard Stojetz

Bernhard Stojetz 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: 20190235261
    Abstract: A method of autostereoscopic imaging including providing an autostereoscopic illumination unit including a lens field composed of a multiplicity of individual lenses or concave mirrors, and modulating an emission characteristic of the light source such that the individual lenses or the concave mirrors are illuminated only partly by the light source, wherein light from the light source impinges on the individual lenses or concave mirrors such that an emission characteristic of a three-dimensional object is imitated, the lens field extends over a spatial angle range of at least 2 sr relative to the light source or an external observer, the individual lenses or concave mirrors are distributed over the lens field and are at least partially sequentially irradiated, and the light source is formed by one or more lasers and the laser or each of the lasers irradiates/irradiate only one of the individual lenses at a specific point in time.
    Type: Application
    Filed: July 24, 2017
    Publication date: August 1, 2019
    Inventors: Bernhard Stojetz, Alfred Lell, Christoph Eichler, Andreas Löffler, Harald König, André Somers, Clemens Vierheilig
  • Patent number: 10361534
    Abstract: A semiconductor light source is disclosed. In an embodiment a semiconductor light source includes at least one semiconductor laser configured to generate a primary radiation and at least one coupling-out element comprising a continuous base region and rigid light guide columns extending away from the base region, the light guide columns acting as waveguides for the primary radiation, wherein the primary radiation is irradiated into the base region during operation, is led through the base region to the light guide columns and is directionally emitted from the light guide columns so that an intensity half-value angle of the emitted primary radiation is at most 90°.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: July 23, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Bernhard Stojetz, Alfred Lell, Christoph Eichler, Andreas Löffler
  • Publication number: 20190199056
    Abstract: A semiconductor light source includes a laser and at least one phosphor, wherein the laser includes a semiconductor body having at least one active zone that generates laser radiation, at least one resonator having resonator mirrors and having a longitudinal axis is formed in the laser so that the laser radiation is guided and amplified along the longitudinal axis during operation and the active zone is located at least partially in the resonator, and the phosphor is optically coupled to the resonator in a gap-free manner so that in the direction transverse to the longitudinal axis at least part of the laser radiation is introduced into the phosphor and converted into a secondary radiation having a greater wavelength.
    Type: Application
    Filed: June 7, 2017
    Publication date: June 27, 2019
    Applicant: OSRAM Opto Semiconductors GmbH
    Inventors: Christoph Eichler, Sven Gerhard, Alfred Lell, Bernhard Stojetz
  • Publication number: 20190173264
    Abstract: In an embodiment a laser include a semiconductor layer sequence having an active zone for generating radiation and an electrical contact web arranged on a top side of the semiconductor layer sequence, wherein the contact web is located on the top side only in an electrical contact region or is in electrical contact with the top side only in the contact region so that the active zone is supplied with current only in places during operation, wherein the contact web comprises a plurality of metal layers at least partially stacked one above the other, wherein at least one of the metal layers comprises a structuring so that the at least one metal layer only partially covers the contact region and has at least one opening or interruption, and wherein the structuring reduces stresses of the semiconductor layer sequence on account of different thermal expansion coefficients of the metal layers.
    Type: Application
    Filed: March 27, 2017
    Publication date: June 6, 2019
    Inventors: Bernhard Stojetz, Georg Brüderl
  • Patent number: 10270225
    Abstract: A semiconductor laser arrangement and a projector are disclosed. In an embodiment the semiconductor laser arrangement includes at least two electrically pumped active zones, each active zone configured to emit laser radiation of a different emission wavelength and a semiconductor-based waveguide structure, wherein the active zones are electrically independently operable of one another, wherein the active zones optically follow directly one another along a beam direction and are arranged in a descending manner with regard to their emission wavelengths, wherein at least in a region of a last active zone along the beam direction, a laser radiation of all active zones jointly runs through the waveguide structure, wherein at least the last active zone comprises a plurality of waveguides which are stacked one above the other and are oriented parallel to one another, wherein one of the waveguides is configured for the radiation emitted by the last active zone.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: April 23, 2019
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Bernhard Stojetz, Alfred Lell, Christoph Eichler, Andreas Löffler, André Somers
  • Publication number: 20190036303
    Abstract: A semiconductor light source is disclosed. In one embodiment, a semiconductor light source includes at least one semiconductor laser for generating a primary radiation and at least one conversion element for generating a longer-wave visible secondary radiation from the primary radiation, wherein the conversion element for generating the secondary radiation comprises a semiconductor layer sequence having one or more quantum well layers, and wherein, in operation, the primary radiation is irradiated into the semiconductor layer sequence perpendicular to a growth direction thereof, with a tolerance of at most 15°.
    Type: Application
    Filed: March 13, 2017
    Publication date: January 31, 2019
    Inventors: Bernhard Stojetz, Alfred Lell, Christoph Eichler, Andreas Löffler
  • Publication number: 20190013642
    Abstract: A semiconductor light source is disclosed. In an embodiment a semiconductor light source includes at least one semiconductor laser configured to generate a primary radiation and at least one coupling-out element comprising a continuous base region and rigid light guide columns extending away from the base region, the light guide columns acting as waveguides for the primary radiation, wherein the primary radiation is irradiated into the base region during operation, is led through the base region to the light guide columns and is directionally emitted from the light guide columns so that an intensity half-value angle of the emitted primary radiation is at most 90°.
    Type: Application
    Filed: February 23, 2017
    Publication date: January 10, 2019
    Inventors: Bernhard Stojetz, Alfred Lell, Christoph Eichler, Andreas Löffler
  • Publication number: 20180323581
    Abstract: A semiconductor laser arrangement and a projector are disclosed. In an embodiment the semiconductor laser arrangement includes at least two electrically pumped active zones, each active zone configured to emit laser radiation of a different emission wavelength and a semiconductor-based waveguide structure, wherein the active zones are electrically independently operable of one another, wherein the active zones optically follow directly one another along a beam direction and are arranged in a descending manner with regard to their emission wavelengths, wherein at least in a region of a last active zone along the beam direction, a laser radiation of all active zones jointly runs through the waveguide structure, wherein at least the last active zone comprises a plurality of waveguides which are stacked one above the other and are oriented parallel to one another, wherein one of the waveguides is configured for the radiation emitted by the last active zone.
    Type: Application
    Filed: November 2, 2016
    Publication date: November 8, 2018
    Inventors: Bernhard Stojetz, Alfred Lell, Christoph Eichler, Andreas Löffler, André Somers
  • Publication number: 20180062346
    Abstract: A laser component includes a housing, the housing including a base surface and side walls which are perpendicular to the base surface, wherein a first carrier block and a second carrier block are arranged parallel to each other at the base surface, a first laser chip arranged on a longitudinal side of the first carrier block; and a further laser chip arranged on a longitudinal side of the second carrier block, wherein an emission direction of the first laser chip and the further laser chip is oriented perpendicular to the base surface.
    Type: Application
    Filed: October 26, 2017
    Publication date: March 1, 2018
    Inventors: Markus Horn, Andreas Breidenassel, Karsten Auen, Bernhard Stojetz, Thomas Schwarz
  • Patent number: 9831632
    Abstract: A laser component includes a housing in which a first carrier block is arranged. A first laser chip having an emission direction is arranged on a longitudinal side of the first carrier block. The first laser chip electrically conductively connects to a first contact region arranged on the first carrier block and a second contact region arranged on the first carrier block. There is a respective electrically conductive connection between the first contact region and a first contact pin of the housing and between the second contact region and a second contact pin of the housing.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: November 28, 2017
    Assignees: OSRAM Opto Semiconductor GmbH, OSRAM GmbH
    Inventors: Markus Horn, Andreas Breidenassel, Karsten Auen, Bernhard Stojetz, Thomas Schwarz
  • Publication number: 20170331257
    Abstract: A light-emitting semiconductor chip (100) is provided, having a first semiconductor layer (1), which is at least part of an active layer provided for generating light and which has a lateral variation of a material composition along at least one direction of extent. Additionally provided is a method for producing a semiconductor chip (100).
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Inventors: Christoph EICHLER, Andre SOMERS, Bernhard STOJETZ, Andreas LOEFFLER, Alfred LELL
  • Publication number: 20170330996
    Abstract: A semiconductor chip (100) is provided, having a first semiconductor layer (1), which has a lateral variation of a material composition along at least one direction of extent. Additionally provided is a method for producing a semiconductor chip (100).
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Inventors: Alfred LELL, Andreas LOEFFLER, Christoph EICHLER, Bernhard STOJETZ, Andre SOMERS
  • Publication number: 20170330757
    Abstract: A method for producing a semiconductor chip (100) is provided, in which, during a growth process for growing a first semiconductor layer (1), an inhomogeneous lateral temperature distribution is created along at least one direction of extent of the growing first semiconductor layer (1), such that a lateral variation of a material composition of the first semiconductor layer (1) is produced. A semiconductor chip (100) is additionally provided.
    Type: Application
    Filed: May 12, 2017
    Publication date: November 16, 2017
    Inventors: Christoph EICHLER, Andre SOMERS, Harald KOENIG, Bernhard STOJETZ, Andreas LOEFFLER, Alfred LELL
  • Patent number: 9559491
    Abstract: A laser component includes a laser chip having a top side, an underside, a first side surface and a second side surface, which are oriented parallel to a resonator of the laser chip, wherein an underside of the laser chip is arranged in a manner bearing on a carrier, a top side of the laser chip is arranged in a manner bearing on a further carrier, the laser chip is hermetically tightly encapsulated between the carrier and the further carrier, a second electrical contact pad of the laser chip, said second electrical contact pad being formed on the top side of the laser chip, electrically conductively connects to a second electrical mating contact pad formed on the further carrier, and the first side surface of the laser chip thermally conductively connects to a heat sink.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: January 31, 2017
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Markus Horn, Bernhard Stojetz
  • Patent number: 9531163
    Abstract: A semiconductor laser diode includes a substrate. A semiconductor layer sequence on the substrate has at least one active layer designed for generating laser light that is emitted along an emission direction during operation. At least one filter layer has a main extension plane that is parallel to a main extension plane of the active layer and that is designed to scatter and/or absorb light that propagates in the semiconductor layer sequence and/or the substrate in addition to the laser light.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: December 27, 2016
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Bernhard Stojetz, Alfred Lell, Christoph Eichler
  • Patent number: 9466769
    Abstract: A method is provided for producing a plurality of optoelectronic components. A number of semiconductor chips are arranged on a connection carrier assembly. A frame assembly with a number of openings is arranged in such a way, relative to the connection carrier assembly, that the semiconductor chips are each arranged in one of the openings. A number of optical elements are positioned in such a way, relative to the frame assembly, that the optical elements cover the openings. The connection carrier assembly with the frame assembly and the optical elements is singulated into the number of optoelectronic components, such that each optoelectronic component includes one connection carrier with at least one optoelectronic semiconductor chip, one frame with at least one opening and at least one optical element.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: October 11, 2016
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Hubert Halbritter, Heinz Haas, Claus Jaeger, Bernhard Stojetz
  • Publication number: 20160204575
    Abstract: A laser component includes a laser chip having a top side, an underside, a first side surface and a second side surface, which are oriented parallel to a resonator of the laser chip, wherein an underside of the laser chip is arranged in a manner bearing on a carrier, a top side of the laser chip is arranged in a manner bearing on a further carrier, the laser chip is hermetically tightly encapsulated between the carrier and the further carrier, a second electrical contact pad of the laser chip, said second electrical contact pad being formed on the top side of the laser chip, electrically conductively connects to a second electrical mating contact pad formed on the further carrier, and the first side surface of the laser chip thermally conductively connects to a heat sink.
    Type: Application
    Filed: August 14, 2014
    Publication date: July 14, 2016
    Inventors: Markus Horn, Bernhard Stojetz
  • Publication number: 20150244147
    Abstract: A method for producing a semiconductor laser diode is specified, comprising the following steps:—epitaxial iv growing a semiconductor layer sequence (2) having at least one active layer (3) on a growth substrate (1)—forming a front facet (5) on the semiconductor layer sequence (2) and the growth. substrate (1), wherein the front facet (5) is designed as a main. emission surface having a light emission region (6) for the laser light (30) generated in the completed semiconductor laser diode,—forming a coupling-out coating (9) on a second part (52) of the front facet (5), wherein the first.
    Type: Application
    Filed: July 29, 2013
    Publication date: August 27, 2015
    Inventors: Bernhard Stojetz, Alfred Lell, Christoph Eichler
  • Publication number: 20150229103
    Abstract: A semiconductor laser diode includes a substrate. A semiconductor layer sequence on the substrate has at least one active layer designed for generating laser light that is emitted along an emission direction during operation. At least one filter layer has a main extension plane that is parallel to a main extension plane of the active layer and that is designed to scatter and/or absorb light that propagates in the semiconductor layer sequence and/or the substrate in addition to the laser light.
    Type: Application
    Filed: April 27, 2015
    Publication date: August 13, 2015
    Inventors: Bernhard Stojetz, Alfred Lell, Christoph Eichler
  • Patent number: 9048630
    Abstract: A semiconductor laser diode includes a substrate. A semiconductor layer sequence on the substrate has at least one active layer designed for generating laser light that is emitted along an emission direction during operation. At least one filter layer has a main extension plane that is parallel to a main extension plane of the active layer and that is designed to scatter and/or absorb light that propagates in the semiconductor layer sequence and/or the substrate in addition to the laser light.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: June 2, 2015
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Bernhard Stojetz, Alfred Lell, Christoph Eichler