Patents by Inventor Frank Jermann

Frank Jermann 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: 7851988
    Abstract: Phosphor from the class of the oxynitridosilicates, having a cation M which is doped with divalent europium and having the empirical formula M(1-c)Si2O2N2:Dc, where M=Sr or M=Sr(1-x-y)BaYCax with x+y<0.5 is used, the oxynitridosilicate completely or predominantly comprising the high-temperature-stable modification HT.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: December 14, 2010
    Assignees: Osram Gesellschaft mit beschränkter Haftung, Osram Opto Semiconductors GmbH
    Inventors: Bert Braune, Herbert Brunner, Tim Fiedler, Frank Jermann, Martin Zachau
  • Publication number: 20100276714
    Abstract: A conversion LED is provided. The conversion LED may include a primary light source which emits in the short-wave radiation range below 420 nm, and a luminophore placed in front of it consisting of the BAM system as a host lattice for at least partial conversion of the light source's radiation into longer-wave radiation, wherein the BAM luminophore is applied as a thin layer having a thickness of at most 50 ?m directly on the surface of the light source, the BAM luminophore having the general stoichiometry (M1?r Mgr)O*k(Al2O3), where r=0.4 to 0.6 and M=EAeEu1?e, with EA=Ba, Sr, Ca, and e=0.52 to 0.8, and k=1.5 to 4.5.
    Type: Application
    Filed: November 17, 2008
    Publication date: November 4, 2010
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Dirk Berben, Tim Fiedler, Renate Hirrle, Guenter Huber, Frank Jermann, Martin Zachau
  • Patent number: 7825574
    Abstract: The illumination system makes simultaneous use of the color-mixing principle from blue, green and red (RGB mixing) and the principle of converting of a primary radiation emitted by an LED into light with a longer wavelength by a phosphor which absorbs this radiation, with at least two LEDs being used, of which a first LED emits primarily in the range from 340 to 470 nm (dominant wavelength) and a second LED emits in the red region at 600 to 700 nm (dominant wavelength), wherein the green component is produced by the primary radiation of the first LED being at least partially converted by a green-emitting phosphor, the green-emitting phosphor used being a phosphor from the class of the oxynitridosilicates, having a cation M and the empirical formula M(1?c)Si2O2N2:Dc, M comprising Sr as a constituent and D being doped with divalent europium, where M=Sr or M=Sr(1?x?y)BayCax with x+y<0.5 is used, the oxynitridosilicate completely or predominantly comprising the high-temperature-stable modification HT.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: November 2, 2010
    Assignees: OSRAM Gesellschaft mit beschränkter Haftung, Osram Opto Semiconductors GmbH
    Inventors: Herbert Brunner, Tim Fiedler, Frank Jermann, Martin Zachau
  • Publication number: 20100270909
    Abstract: A luminophore consisting of the BAM system as a host lattice, having the stoichiometry MxEu1?xMg1?y+dMnyAl10+2fO17+d+3f, is provided, wherein 0.2?x?0.48; 0?y?0.3; 0?d?0.1; ?0.1?f?1.0.
    Type: Application
    Filed: November 17, 2008
    Publication date: October 28, 2010
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
    Inventors: Renate Hirrle, Guenter Huber, Frank Jermann, Martin Zachau
  • Patent number: 7821196
    Abstract: An illumination device with at least one LED as the light source, the LED emitting primary radiation in the range from 370 to 430 nm of the optical spectral region (peak wavelength), this radiation being partially or completely converted into radiation of a longer wavelength by three phosphors which are exposed to the primary radiation from the LED and which emit in the blue, green and red spectral regions, so that white light is formed. The conversion is achieved at least with the aid of a phosphor which emits blue light with a wavelength maximum at 440 to 485 nm, and with the aid of a phosphor which emits green light with a wavelength maximum at 505 to 550 nm, and with the aid of a phosphor which emits red light with a wavelength maximum at 560 to 670 nm.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: October 26, 2010
    Assignees: OSRAM Gesellschaft mit beschränkter Haftung, OSRAM Opto Semiconductors GmbH
    Inventors: Dieter Bokor, Andries Ellens, Günter Huber, Frank Jermann, Manfred Kobusch, Michael Ostertag, Wolfgang Rossner, Franz Zwaschka
  • Patent number: 7804237
    Abstract: A luminescence conversion of LED, which uses a blue emitting chip and two illuminating substances, whereby one emits a red and the other a yellow to green. Both illuminating substances are separated upstream from the chip.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: September 28, 2010
    Assignee: OSRAM Gesellschaft mit beschränkter Haftung
    Inventors: Bert Braune, Frank Jermann, Jörg Strauβ
  • Patent number: 7791265
    Abstract: Disclosed is a luminescent substance which has the structure EA3N2Si2O4:D, wherein EA=(Sr,Ba,Ca) and D=Eu, provides red emission, and is characterized by great stability and a simple production process. Said luminescent substance can be used for many different types of light sources.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: September 7, 2010
    Assignee: Osram Gesellschaft mit beschraenkter Haftung
    Inventors: Tim Fiedler, Wolfram Hempel, Frank Jermann
  • Publication number: 20100141114
    Abstract: The invention relates to an illuminant mixture for a discharge lamp (1) with a first and second illuminant compound, said first illuminant compound having an emission spectrum in the yellow and/or green spectral range and being designed to absorb the UV radiation emitted by an Hg source and to absorb the radiation emitted by the Hg source in the blue spectral range. The invention also relates to a discharge lamp comprising an illuminant layer containing the aforementioned illuminant mixture.
    Type: Application
    Filed: July 9, 2008
    Publication date: June 10, 2010
    Inventors: Frank Jermann, Armin Konrad, Martin Zachau
  • Publication number: 20100102704
    Abstract: The invention relates to an illuminant mixture for a discharge lamp (1) with a first and at least one second illuminant composition, said first illuminant composition having an emission spectrum in the green to yellow spectral range and having a first illuminant compound, devoid of Tb and designed to absorb the UV radiation emitted by an Hg source. The invention also relates to a discharge lamp (1) with a discharge vessel (2) and an illuminant layer (12) applied thereto, said layer containing the illuminant mixture according to the invention.
    Type: Application
    Filed: July 9, 2008
    Publication date: April 29, 2010
    Applicant: OSRAM Gesellschaft
    Inventors: Frank Jermann, Armin Konrad, Martin Zachau
  • Publication number: 20100102703
    Abstract: The invention relates to an illuminant compound for a discharge lamp (1), said compound having an emission spectrum in the green spectral range and being designed to absorb the radiation emitted in the visible spectral range by an Hg source and to convert said visible radiation of the Hg source into the emission spectrum of the illuminant compound. The invention also relates to a discharge lamp comprising an illuminant compound of this type.
    Type: Application
    Filed: July 9, 2008
    Publication date: April 29, 2010
    Inventors: Frank Jermann, Armin Konrad, Martin Zachau
  • Publication number: 20100096592
    Abstract: A red-emitting phosphor composed of an M—Al—Si—N system, comprising a cation M, wherein M is represented by at least one of the elements Ca or Ba or Sr and, if appropriate, can additionally be combined with at least one further element from the group Mg, Zn, Cd, wherein the phosphor is activated with Eu, which partly replaces M, and wherein the phosphor additionally contains LiF
    Type: Application
    Filed: April 11, 2008
    Publication date: April 22, 2010
    Inventors: Daniel Becker, Tim Fielder, Frank Jermann, Bianca Pohl, Martin Zachau
  • Patent number: 7695164
    Abstract: An illumination system for imaging illumination having at least one compact light source. The illumination system comprises a reflector having a reflector contour, the light source being accommodated in the vicinity of the reflector contour. A compact diffusing medium is accommodated at the focal point of the reflector, the light from the light sources being directed substantially onto the diffusing medium and, from there, being diffused onto the reflector contour, with the result that the light leaving the reflector is emitted homogeneously.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: April 13, 2010
    Assignee: Osram Gesellschaft mit Beschraenkter Haftung
    Inventors: Dirk Berben, Frank Jermann
  • Patent number: 7649309
    Abstract: Phosphor from the class of the oxynitridosilicates, having a cation M which is doped with divalent europium, and having the empirical formula MSi2O2N2, where M=Sr1-x-yCayEux where 0.3?x+y?0.725, with a Ca/Eu ratio of >1, the oxynitridosilicate having an emission with a dominant wavelength in the range from 555 to 568 nm.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: January 19, 2010
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventors: Tim Fiedler, Frank Jermann
  • Publication number: 20090322209
    Abstract: A phosphor from the class of nitridosilicates from the M-Al—Si—N system, comprising a cation M, wherein M is represented by Ca alone or is represented by a mixture of Ca with at least one further element from the group Ba, Sr, Mg, Zn, Cd, Li, Na, Cu, wherein the phosphor is activated with at least one element from the group Eu, Ce which partly replaces M, characterized in that the phosphor forms a phase that is to be assigned to the system M3N2-AlN-Si3N4, wherein the atomic ratio of the constituents M:Al ?0.375 and the atomic ratio Si/Al ?1.4.
    Type: Application
    Filed: July 31, 2007
    Publication date: December 31, 2009
    Applicant: OSRAM Gesellschaft mit beschrankter Haftung
    Inventors: Daniel Becker, Tim Fiedler, Frank Jermann, Christian Koch, Bianca Pohl
  • Publication number: 20090278441
    Abstract: A luminescence conversion of LED, which uses a blue emitting chip and two illuminating substances, whereby one emits a red and the other a yellow to green. Both illuminating substances are separated upstream from the chip.
    Type: Application
    Filed: April 11, 2006
    Publication date: November 12, 2009
    Applicants: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH, Osram Opto Semiconductors GmbH
    Inventors: Bert Braune, Frank Jermann, Jörg Strauss
  • Publication number: 20090272998
    Abstract: A semiconductor chip comprises: a semiconductor body which comprises a semiconductor layer sequence suitable for emitting electromagnetic radiation of a first wavelength range from its front side; and a first wavelength-converting layer on at least one first partial region of the front side of the semiconductor body with a first wavelength conversion substance, which converts radiation of the first wavelength range into radiation of a second wavelength range, which is different from the first wavelength range, wherein at least one second partial region of the front side is free of the first wavelength-converting layer. An optoelectronic component comprising such a semiconductor chip and a method for producing the semiconductor chip are furthermore described.
    Type: Application
    Filed: May 18, 2007
    Publication date: November 5, 2009
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Dirk Berben, Frank Jermann
  • Publication number: 20090261366
    Abstract: An optoelectronic component with a semiconductor body that comprises an active semiconductor layer sequence is disclosed, which is suitable for generating electromagnetic radiation of a first wavelength that is emitted from a front face of the semiconductor body. The component also comprises a first wavelength conversion substance following the semiconductor body in its direction of emission, which converts radiation of the first wavelength into radiation of a second wavelength different from the first wavelength, and a first selectively reflecting layer between the active semiconductor layer sequence and the first wavelength conversion substance that selectively reflects radiation of the second wavelength and is transparent to radiation of the first wavelength.
    Type: Application
    Filed: September 27, 2006
    Publication date: October 22, 2009
    Applicant: OSRAM OPTO SEMICONDUCTORS GMBH
    Inventors: Dominik Eisert, Norbert Linder, Raimund Oberschmid, Dirk Berben, Frank Jermann, Martin Zachau
  • Publication number: 20090212683
    Abstract: Disclosed is a luminescent substance which has the structure EA3N2Si2O4:D, wherein EA=(Sr,Ba,Ca) and D=Eu, provides red emission, and is characterized by great stability and a simple production process. Said luminescent substance can be used for many different types of light sources.
    Type: Application
    Filed: November 29, 2006
    Publication date: August 27, 2009
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNG
    Inventors: Tim Fiedler, Wolfram Hempel, Frank Jermann
  • Patent number: 7550095
    Abstract: Phosphor from the class of the oxynitridosilicates, having a cation M which is doped with divalent europium, and having the empirical formula M(1-c)Si2O2N2:Dc, where M=Sr or M=Sr(1-x-y)BayCax with x+y<0.5, the oxynitridosilicate completely or predominantly comprising the high-temperature-stable modification HT.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: June 23, 2009
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glü hlampen mbH
    Inventors: Tim Fiedler, Frank Jermann
  • Patent number: 7530710
    Abstract: A color-tunable illumination system for imaging illumination having a tuning means and at least two light sources of different colors. The illumination system comprises a reflector having a reflector contour, the light sources being accommodated in the vicinity of the reflector contour, and a compact diffusing medium accommodated at the focal point of the reflector. The light from the light sources is directed substantially onto the diffusing medium and then, from there, is diffused onto the reflector contour, electronic driving of the light sources making it possible to regulate the intensity of the light sources separately from one another, with the result that the light leaving the reflector can be color-tuned.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: May 12, 2009
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventors: Dirk Berben, Tim Fiedler, Frank Jermann