Patents by Inventor Peter Josef Schmidt

Peter Josef Schmidt 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: 20210403805
    Abstract: The invention provides a method for providing a luminescent particle with a hybrid coating, the method comprising: (i) providing a luminescent core comprising a primer layer on the luminescent core; (ii) providing a main ALD coating layer onto the primer layer by application of a main atomic layer deposition process, the main ALD coating layer comprising a multilayer with two or more layers having different chemical compositions, and wherein in the main atomic layer deposition process a metal oxide precursor is selected from a group of metal oxide precursors comprising Al, Zn, Hf, Ta, Zr, Ti, Sn, Nb, Y, Ga, and V; (iii) providing a main sol-gel coating layer onto the main ALD-coating layer by application of a main sol-gel coating process, the main sol-gel coating layer having a chemical composition different from one or more of the layers of the multilayer.
    Type: Application
    Filed: June 29, 2020
    Publication date: December 30, 2021
    Inventors: Jens Meyer, Andreas Tücks, Peter Josef Schmidt, Erik Roeling
  • Patent number: 11208593
    Abstract: Embodiments of the invention are directed to a luminescent ceramic including a first phase and a second phase. The first phase is R3?x?y?z+w2A1.5x+y?w2MzSi6?w1?w2Alw1?w2N11?y?w1Oy+w1. R is selected from the group comprising trivalent La, Gd, Tb, Y, Lu; A is selected from the group comprising bivalent Ca, Mg, Sr, Ba, and Eu; and M is selected from the group comprising trivalent Ce, Pr and Sm. The second phase may be or comprise, for example, RE3ASi5N9O2 and RESi3N5, wherein RE is at least one rare-earth element selected from the group consisting of La, Gd, Lu, Y, Ce and Sc and wherein A is at least one metal element selected from the group consisting of Ba, Sr, Ca, Mg, Zn and Eu.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: December 28, 2021
    Inventors: Christoph Martiny, Peter Josef Schmidt, Christian Maak, Wolfgang Schnick
  • Patent number: 11155489
    Abstract: Embodiments of the invention include a transparent material such as glass including a metal such as bismuth, particles of luminescent material such as a nitride phosphor disposed in the transparent material, and a coating disposed over the particles of luminescent material. The coating is formed to prevent reaction between the particles of luminescent material and the metal. The coating may be silica.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: October 26, 2021
    Assignee: Lumileds LLC
    Inventors: Peter Josef Schmidt, Cas Groenendijk
  • Patent number: 11142683
    Abstract: The invention provides a method for providing luminescent particles (100) with a hybrid coating, the method comprising (i) providing a first coating layer (110) onto the luminescent particles (100) by application of a sol-gel coating process, thereby providing coated luminescent particles; and (ii) providing a second coating layer (120) onto the coated luminescent particles by application of an atomic layer deposition process. The invention also provides luminescent particles (100) comprise a luminescent core (102), a first coating layer (110) having a first coating layer thickness (d1) in the range of 50-300 nm, and a second coating layer (120) having a second coating layer thickness (d2) in the range of 5-250 nm.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: October 12, 2021
    Inventors: Peter Josef Schmidt, Andreas Tücks, Baby Seriyati Schreinemacher
  • Publication number: 20210305468
    Abstract: The invention provides luminescent material comprising E1-wSc1-x-y-u-wMyZuA2wSi2-z-uGezAluO6:Crx, wherein: E comprises one or more of Li, Na, and K; M comprises one or more of Al, Ga, In, Tm, Yb, and Lu; Z comprises one or more of Ti, Zr, and Hf; A comprises one or more of Mg, Zn, and Ni; 0<x?0.25; 0?y?0.75; 0?z?2; 0?u?1; 0?w?1; x+y+u+w?1; and z+u?2.
    Type: Application
    Filed: March 25, 2020
    Publication date: September 30, 2021
    Inventor: Peter Josef Schmidt
  • Patent number: 11101409
    Abstract: The invention provides a lighting device configured to provide white lighting device light, the lighting device comprising (i) a light source, configured to provide blue light source light, and (ii) a luminescent material element, configured to absorb at least part of the blue light source light and to convert into luminescent material light, wherein the luminescent material element comprises a luminescent material which consists for at least 80 wt. % of a M2-2xEu2xSi5-yAlyOyN8-y phosphor, wherein M comprises one or more of Mg, Ca, Sr, Ba, with a molar ratio of (Mg+Ca+Sr)/(Ba)?0.1, wherein x is in the range of 0.001-0.02, wherein y is in the range of ?0.2, and wherein the white lighting device light comprises said blue light source light and said luminescent material light.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 24, 2021
    Inventors: Peter Josef Schmidt, Walter Mayr, Volker Weiler, Hans-Helmut Bechtel
  • Patent number: 11041122
    Abstract: Embodiments of the invention include a wavelength-converting composition as defined by R3-x-y-zAx+yMzSi6-w1Alw1O3x+y+w1N11-7x/3-y-w1?2-2x/3, with ? being vacancies of the structure that are filled by oxygen atoms with 0<x?3, ?3?y<3, 0<z<1,0?w1?6, 0?x+y, x+y+z?3, 11?7/3x?y?w1?0, and 3x+y+w1?13. R is selected from the group comprising trivalent La, Gd, Tb, Y, Lu; A is selected from the group comprising bivalent Ca, Mg, Sr, Ba, and Eu; and M is selected from the group comprising trivalent Ce, Pr and Sm.
    Type: Grant
    Filed: February 21, 2017
    Date of Patent: June 22, 2021
    Assignee: Lumileds LLC
    Inventors: Peter Josef Schmidt, Dajana Durach, Wolfgang Schnick
  • Publication number: 20210171827
    Abstract: This specification discloses a method of enhancing the stability and performance of Eu2+ doped narrow band red emitting phosphors. The resulting phosphor compositions are characterized by crystallizing in ordered structure variants of the UCr4C4 crystal structure type and having a composition of AE1?xLi3?2yAl1+2y?zSizO4?4y?zN4y+z:EUx(AE=Ca, Sr, Ba; 0<x<0.04, 0?y<1, 0<z<0.05, y+z?1). It is believed that the formal substitution (Al,O)+ by (Si,N)+ reduces the concentration of unwanted Eu3+ and thus enhances properties of the phosphor such as stability and conversion efficiency.
    Type: Application
    Filed: December 2, 2020
    Publication date: June 10, 2021
    Applicant: Lumileds LLC
    Inventors: Peter Josef SCHMIDT, Philipp-Jean STROBEL, Volker Weiler, Andreas TUCKS
  • Patent number: 11031529
    Abstract: Embodiments of the invention include a luminescent ceramic including (Ba1-xSrx)2-zSi5-yO4yN8-4y:Euz 258 phase wavelength converting material (0.5?x?0.9; 0?y?1; 0.001?z?0.02) and M3Si3O3N4 3334 phase material (M=Ba, Sr, Eu). The M3Si3O3N4 3334 phase material comprises no more than 5 weight % of the material.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: June 8, 2021
    Assignee: Lumileds LLC
    Inventors: Christoph Martiny, Peter Josef Schmidt, Oliver Steigelmann, Cora Hecht
  • Publication number: 20210151642
    Abstract: In a method according to embodiments of the invention, for a predetermined amount of light produced by a light emitting diode and converted by a phosphor layer comprising a host material and a dopant, and for a predetermined maximum reduction in efficiency of the phosphor at increasing excitation density, a maximum dopant concentration of the phosphor layer is selected.
    Type: Application
    Filed: January 27, 2021
    Publication date: May 20, 2021
    Inventors: Peter Josef Schmidt, Oleg Borisovich Shchekin, Walter Mayr, Hans-Helmut Bechtel, Danielle Chamberlin, Regina Mueller-Mach, Gerd Mueller
  • Publication number: 20210126168
    Abstract: Embodiments of the invention include an infrared-emitting phosphor comprising (La,Gd)3Ga5-x-yAlxSiO14:Cry, where 0?x?1 and 0.02?y?0.08. In some embodiments, the infrared-emitting phosphor is a calcium gallogermanate material. In some embodiments, the infrared-emitting phosphor is used with a second infrared-emitting phosphor. The second infrared-emitting phosphor is one or more chromium doped garnets of composition Gd3-x1Sc2-x2-yLux1+x2Ga3O12:Cry, where 0.02?x1?0.25, 0.05?x2?0.3 and 0.04?y?0.12.
    Type: Application
    Filed: September 2, 2020
    Publication date: April 29, 2021
    Applicant: Lumileds Holding B.V.
    Inventors: Peter Josef SCHMIDT, Rob ENGELEN, Thomas DIEDERICH
  • Publication number: 20210119085
    Abstract: An inorganic coating may be applied to bond optically scattering particles or components. Optically scattering particles bonded via the inorganic coating may form a three dimensional film which can receive a light emission, convert, and emit the light emission with one or more changed properties. The inorganic coating may be deposited using a low-pressure deposition technique such as an atomic layer deposition (ALD) technique. Two or more components, such as an LED and a ceramic phosphor layer may be bonded together by depositing an inorganic coating using the ALD technique.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 22, 2021
    Applicant: LUMILEDS LLC
    Inventors: Michael CAMRAS, Jyoti BHARDWAJ, Peter Josef SCHMIDT, Niels Jeroen VAN DER VEEN
  • Patent number: 10982143
    Abstract: Embodiments of the invention include a light source and a nitridoberyllate phosphor disposed in a path of light emitted by the light source. The nitridoberyllate phosphor includes a trigonal planar BeN3 structure and/or a tetrahedral Be(N,O)4 structure.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: April 20, 2021
    Assignee: Lumileds LLC
    Inventors: Peter Josef Schmidt, Philipp-Jean Strobel, Wolfgang Schnick
  • Patent number: 10971658
    Abstract: Embodiments of the invention include a light source and a wavelength converting structure disposed in a path of light emitted by the light source. The wavelength converting structure includes a first phosphor that emits infrared light and a second phosphor that emits visible light. In some embodiments, the light source emits first light, the second phosphor absorbs the first light and emits second light, and the first phosphor absorbs the first light and emits third light and absorbs the second light and emits fourth light.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: April 6, 2021
    Assignee: Lumileds LLC
    Inventors: Peter Josef Schmidt, Detlef Wiechert
  • Publication number: 20210095201
    Abstract: A wavelength converting structure is disclosed, the wavelength converting structure including a spinel type SWIR phosphor material having emission wavelengths in the range of 1000 to 1700 nm, the SWIR phosphor material including AE1-x-zAz+0.5(x-y)D2+0.5(x-y)-z-u EzO4:Niy,Cru where AE=Mg, Zn, Co, or Be, or mixtures thereof, A=Li, Na, Cu, or Ag, or mixtures thereof, D=Ga, Al, B, In, or Sc, or mixtures thereof, and E=Si, Ge, Sn, Ti, Zr, or Hf, or mixtures thereof; where 0?x?1, 0<y?0.1, 0?z?1, 0?u?0.2.
    Type: Application
    Filed: September 28, 2020
    Publication date: April 1, 2021
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Peter Josef SCHMIDT, Detlef WIECHERT, Cristian DAN
  • Publication number: 20210098660
    Abstract: A wavelength converting structure is disclosed, the wavelength converting structure including an SWIR phosphor material having emission wavelengths in the range of 1000 to 1700 nm, the SWIR phosphor material including at least one of a perovskite type phosphor doped with Ni2+, a perovskite type phosphor doped with Ni2+ and Cr3+, and a garnet type phosphor doped with Ni2+ and Cr3+.
    Type: Application
    Filed: September 28, 2020
    Publication date: April 1, 2021
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Peter Josef SCHMIDT, Detlef WIECHERT
  • Patent number: 10910529
    Abstract: In a method according to embodiments of the invention, for a predetermined amount of light produced by a light emitting diode and converted by a phosphor layer comprising a host material and a dopant, and for a predetermined maximum reduction in efficiency of the phosphor at increasing excitation density, a maximum dopant concentration of the phosphor layer is selected.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: February 2, 2021
    Inventors: Peter Josef Schmidt, Oleg Borisovich Shchekin, Walter Mayr, Hans-Helmut Bechtel, Danielle Chamberlin, Regina Mueller-Mach, Gerd Mueller
  • Patent number: 10875005
    Abstract: A coated luminescent particle 100, a luminescent converter element, a light source, a luminaire and a method of manufacturing coating luminescent particles are provided. The coated luminescent particle 100 comprises a luminescent particle 102, a first coating layer 104 and a second coating layer 106. The luminescent particle 102 comprises luminescent material for absorbing light in a first spectral range and for converting the absorbed light towards light of a second spectral range. The luminescent material is sensitive for water. The first coating layer 104 forms a first barrier for water and comprises a metal oxide or a nitride, phosphide, sulfide based coating. The second coating layer 106 forms a second barrier for water and comprises a silicon based polymer or comprises a continuous layer of one of the materials AlPO4, SiO2, Al2O3, and LaPO4. The first coating layer 104 and the second coating layer 106 are light transmitting.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: December 29, 2020
    Assignee: Lumileds LLC
    Inventors: Ties Van Bommel, Peter Josef Schmidt, Martinus Petrus Joseph Peeters, Rene Theodorus Wegh, Gerardus Wilhelmus Gerbe Van Dreumel, Rene Jan Hendriks, Christoph Gerard August Hoelen
  • Patent number: 10854794
    Abstract: A wavelength converting layer is partially diced to generate a first and second wavelength converting layer segment and to allow partial isolation between the first segment and the second segment such that the wavelength converting layer segments are connected by a connecting wavelength converting layer. The first and second wavelength converting layer segments are attached to a first and second light emitting device, respectively to create a first and second pixel. The connecting wavelength converting layer segment is removed to allow complete isolation between the first pixel and the second pixel. An optical isolation material is applied to exposed surfaces of the first and second pixel and a sacrificial portion of the wavelength converting layer segments and optical isolation material attached to the sacrificial portion is removed from a surface facing away from the first light emitting device, to expose a emitting surface of the first wavelength converting layer segment.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: December 1, 2020
    Assignee: Lumileds LLC
    Inventors: Kentaro Shimizu, Hisashi Masui, Yu-Chen Shen, Danielle Russell Chamberlin, Peter Josef Schmidt
  • Publication number: 20200335672
    Abstract: A wavelength converting layer is partially diced to generate a first and second wavelength converting layer segment and to allow partial isolation between the first segment and the second segment such that the wavelength converting layer segments are connected by a connecting wavelength converting layer. The first and second wavelength converting layer segments are attached to a first and second light emitting device, respectively to create a first and second pixel. The connecting wavelength converting layer segment is removed to allow complete isolation between the first pixel and the second pixel. An optical isolation material is applied to exposed surfaces of the first and second pixel and a sacrificial portion of the wavelength converting layer segments and optical isolation material attached to the sacrificial portion is removed from a surface facing away from the first light emitting device, to expose a emitting surface of the first wavelength converting layer segment.
    Type: Application
    Filed: June 30, 2020
    Publication date: October 22, 2020
    Applicant: LUMILEDS LLC
    Inventors: Kentaro SHIMIZU, Hisashi MASUI, Yu-Chen SHEN, Danielle Russell CHAMBERLIN, Peter Josef SCHMIDT