Patents by Inventor Michael Kuhnelt
Michael Kuhnelt 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).
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Patent number: 10615323Abstract: A component includes a semiconductor chip, an envelope and a reflector, wherein the semiconductor chip has a front side, a rear side facing away from the front side and side faces, and the semiconductor chip is electrically contactable at least partially via its rear side, the reflector completely encloses the semiconductor chip in lateral directions, has a first subregion and a second subregion directly adjoining the first subregion, and the first subregion is spatially spaced from the semiconductor chip and the second subregion directly adjoins the semiconductor chip, the envelope covers the front side of the semiconductor chip completely and the side surfaces of the semiconductor chip at least partially so that the envelope has an interface facing the semiconductor chip and reproducing a contour of the semiconductor chip in regions, and in the component is free of a lead frame enclosed by a molded body.Type: GrantFiled: April 6, 2017Date of Patent: April 7, 2020Assignee: OSRAM OLED GmbHInventors: Michael Kühnelt, Alexander Linkov
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Publication number: 20190165225Abstract: A component includes a semiconductor chip, an envelope and a reflector, wherein the semiconductor chip has a front side, a rear side facing away from the front side and side faces, and the semiconductor chip is electrically contactable at least partially via its rear side, the reflector completely encloses the semiconductor chip in lateral directions, has a first subregion and a second subregion directly adjoining the first subregion, and the first subregion is spatially spaced from the semiconductor chip and the second subregion directly adjoins the semiconductor chip, the envelope covers the front side of the semiconductor chip completely and the side surfaces of the semiconductor chip at least partially so that the envelope has an interface facing the semiconductor chip and reproducing a contour of the semiconductor chip in regions, and in the component is free of a lead frame enclosed by a molded body.Type: ApplicationFiled: April 6, 2017Publication date: May 30, 2019Inventors: Michael Kühnelt, Alexander Linkov
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Patent number: 8585257Abstract: A compact housing comprises a one-piece mounting plate made from a metallic material, which is designed to be joined thermally conductively by a main side to an external support not belonging to the compact housing. Furthermore, the compact housing comprises a one-piece housing cover, which is joined permanently to the mounting plate and therewith encloses a volume. In addition, the compact housing contains at least one electrical feedthrough, such that at least one electrically conductive connection may be produced therewith from inside the volume to outside the volume, this connection being insulated electrically from the mounting plate. Within the volume a module is located which is designed to emit electromagnetic radiation. This module is applied directly to the mounting plate, such that the joint face between mounting plate and module is substantially parallel to the main side of the mounting plate joined to the external support.Type: GrantFiled: November 24, 2008Date of Patent: November 19, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Thomas Schwarz, Ulrich Steegmüller, Michael Kühnelt, Roland Schulz
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Patent number: 8396092Abstract: An optically pumped semiconductor apparatus having a surface-emitting semiconductor body (1) which has a radiation passage area (1a) which faces away from a mounting plane of the semiconductor body (1), and an optical element (7) which is suitable for directing pump radiation (17) onto the radiation passage area (1a) of the semiconductor body (1).Type: GrantFiled: December 29, 2006Date of Patent: March 12, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Ulrich Steegmüller, Frank Singer, Thomas Schwarz, Michael Kühnelt
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Publication number: 20110280025Abstract: A compact housing comprises a one-piece mounting plate made from a metallic material, which is designed to be joined thermally conductively by a main side to an external support not belonging to the compact housing. Furthermore, the compact housing comprises a one-piece housing cover, which is joined permanently to the mounting plate and therewith encloses a volume. In addition, the compact housing contains at least one electrical feedthrough, such that at least one electrically conductive connection may be produced therewith from inside the volume to outside the volume, this connection being insulated electrically from the mounting plate. Within the volume a module is located which is designed to emit electromagnetic radiation. This module is applied directly to the mounting plate, such that the joint face between mounting plate and module is substantially parallel to the main side of the mounting plate joined to the external support.Type: ApplicationFiled: November 24, 2008Publication date: November 17, 2011Applicant: Osram Opto Semiconductors GmbHInventors: Thomas Schwarz, Ulrich Steegmuller, Michael Kuhnelt, Roland Schulz
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Publication number: 20110122899Abstract: A semiconductor laser includes a semiconductor laser element that emits electromagnetic radiation with at least one fundamental wavelength when in operation, an end mirror, a deflecting mirror reflective as a function of polarization located between the semiconductor laser element and the end mirror, and at least one optically nonlinear crystal configured for type II frequency conversion of the fundamental wavelength and which satisfies a ?/2 condition for the fundamental wavelength.Type: ApplicationFiled: June 17, 2009Publication date: May 26, 2011Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Michael Kühnelt, Peter Brick, Stephan Lutgen
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Patent number: 7903716Abstract: A surface emitting semiconductor laser includes a semiconductor chip (1), which emits radiation (12) and contains a first resonator mirror (3). A second resonator mirror (6) is arranged outside the semiconductor chip (1). The first resonator mirror (3) and the second resonator mirror (6) form a laser resonator for the radiation (12) emitted by the semiconductor chip (1). The laser resonator contains an interference filter (9, 17), which is formed from an interference layer system comprising a plurality of dielectric layers.Type: GrantFiled: January 31, 2005Date of Patent: March 8, 2011Assignee: OSRAM Opto Semiconductors GmbHInventors: Thomas Schwarz, Ulrich Steegmüller, Michael Kühnelt
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Patent number: 7860144Abstract: A semiconductor laser component comprising a semiconductor laser chip (1) provided for generating radiation and an optical device comprising a carrier (7), a radiation deflecting element (8) arranged on the carrier and a mirror arranged on the carrier is proposed, wherein the mirror is formed as an external mirror (9) of an external optical resonator for the semiconductor laser chip (1), the radiation deflecting element is arranged within the resonator, the radiation deflecting element is formed for deflecting at least a portion of a radiation (13, 160) that is generated by the semiconductor laser chip (1) and reflected by the external mirror, the carrier has a lateral main extension direction, and the semiconductor laser chip (1) is disposed downstream of the carrier in a vertical direction with respect to the lateral main extension direction.Type: GrantFiled: June 24, 2005Date of Patent: December 28, 2010Assignee: Osram Opto Semiconductors GmbHInventors: Michael Kühnelt, Thomas Schwarz, Frank Singer, Ulrich Steegmüller
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Patent number: 7778289Abstract: An optically pumped, surface-emitting semiconductor laser having a mode-selective apparatus (7) which is intended for suppression of predeterminable, higher resonator modes of the semiconductor laser. The mode-selective apparatus is arranged in the beam path of a pump beam source (2) of the surface-emitting semiconductor laser.Type: GrantFiled: September 28, 2006Date of Patent: August 17, 2010Assignee: Osram Opto Semiconductors GmbHInventors: Michael Kühnelt, Ulrich Steegmüller, Wolfgang Reill, Thomas Schwarz, Frank Singer
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Patent number: 7729046Abstract: In a laser device, a crystal array includes a laser gain crystal and an optically non-linear frequency conversion crystal. A pump source couples at least two mutually spatially separated pump beams into the crystal array. Between two pump beams, a saw kerf of the crystal array extends parallel to the pump beams.Type: GrantFiled: July 9, 2008Date of Patent: June 1, 2010Assignee: Osram Opto Semiconductors GmbHInventors: Michael Kühnelt, Thomas Schwarz, Ulrich Steegmüller, Frank Singer
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Publication number: 20090219957Abstract: In a surface emitting semiconductor laser comprising a semiconductor chip (1), a first resonator mirror (4) and at least one further resonator mirror (8) which is arranged outside the semiconductor chip (1) and forms with the first resonator mirror (4) a laser resonator having a resonator length L and a pump laser (10) which, for optically pumping the semiconductor laser (1), radiates pump radiation (14) having a pump power into the semiconductor chip (1), the pump power is modulated with a modulation frequency fp and the resonator length L is adapted to the modulation frequency fp.Type: ApplicationFiled: September 8, 2006Publication date: September 3, 2009Inventors: Ulrich Steegmüller, Thomas Schwarz, Michael Kühnelt, Josip Maric
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Publication number: 20090213881Abstract: An optically pumped semiconductor apparatus having a surface-emitting semiconductor body (1) which has a radiation passage area (1a) which faces away from a mounting plane of the semiconductor body (1), and an optical element (7) which is suitable for directing pump radiation (17) onto the radiation passage area (1a) of the semiconductor body (1).Type: ApplicationFiled: December 29, 2006Publication date: August 27, 2009Inventors: Ulrich Steegmüller, Frank Singer, Thomas Schwarz, Michael Kühnelt
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Patent number: 7558453Abstract: An arrangement of a microoptical component on a substrate, containing an adjustment connection which is provided between the component and the substrate and containing a first and a second connection element, which, matching one another, have first and second surfaces which are in contact and allow adjustment in different relative positions. This arrangement allows particularly simple adjustment of a microoptical component, for example, in the beam path of an optical component.Type: GrantFiled: May 31, 2005Date of Patent: July 7, 2009Assignee: Osram Opto Semiconductors GmbHInventors: Ulrich Steegmüller, Michael Kühnelt, Thomas Schwarz
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Publication number: 20090003393Abstract: In a laser device, a crystal array includes a laser gain crystal and an optically non-linear frequency conversion crystal. A pump source couples at least two mutually spatially separated pump beams into the crystal array. Between two pump beams, a saw kerf of the crystal array extends parallel to the pump beams.Type: ApplicationFiled: July 9, 2008Publication date: January 1, 2009Applicant: Osram Opto Semiconductors GmbHInventors: Michael Kuhnelt, Thomas Schwarz, Ulrich Steegmuller, Frank Singer
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Publication number: 20070081564Abstract: An optically pumped, surface-emitting semiconductor laser having a mode-selective apparatus (7) which is intended for suppression of predeterminable, higher resonator modes of the semiconductor laser. The mode-selective apparatus is arranged in the beam path of a pump beam source (2) of the surface-emitting semiconductor laser.Type: ApplicationFiled: September 28, 2006Publication date: April 12, 2007Applicant: Osram Opto Semiconductors GmbHInventors: Michael Kuhnelt, Ulrich Steegmuller, Wolfgang Reill, Thomas Schwarz, Frank Singer
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Publication number: 20060221439Abstract: A laser device includes a crystal array comprising a laser gain crystal and an optically nonlinear frequency conversion crystal, plus a pump source suitable for coupling at least two mutually spatially separated pump beams into said crystal array.Type: ApplicationFiled: March 23, 2006Publication date: October 5, 2006Inventors: Michael Kuhnelt, Thomas Schwarz, Ulrich Steegmuller, Frank Singer
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Publication number: 20050276542Abstract: An arrangement of a microoptical component on a substrate, containing an adjustment connection which is provided between the component and the substrate and containing a first and a second connection element, which, matching one another, have first and second surfaces which are in contact and allow adjustment in different relative positions. This arrangement allows particularly simple adjustment of a microoptical component, for example, in the beam path of an optical component.Type: ApplicationFiled: May 31, 2005Publication date: December 15, 2005Applicant: Osram Opto Semiconductors GmbHInventors: Ulrich Steegmuller, Michael Kuhnelt, Thomas Schwarz
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Publication number: 20050226304Abstract: A surface emitting semiconductor laser includes a semiconductor chip (1), which emits radiation (12) and contains a first resonator mirror (3). A second resonator mirror (6) is arranged outside the semiconductor chip (1). The first resonator mirror (3) and the second resonator mirror (6) form a laser resonator for the radiation (12) emitted by the semiconductor chip (1). The laser resonator contains an interference filter (9, 17), which is formed from an interference layer system comprising a plurality of dielectric layers.Type: ApplicationFiled: January 31, 2005Publication date: October 13, 2005Applicant: Osram Opto Semiconductors GmbHInventors: Thomas Schwarz, Ulrich Steegmuller, Michael Kuhnelt