Patents by Inventor Christoph Gerard August Hoelen

Christoph Gerard August Hoelen 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: 10606158
    Abstract: A light emitting device (1) comprising a luminescent element (3) comprising a first face (31) and a second face (32), the first face comprising a light input surface and one of the first face and the second face comprising a light exit surface, the luminescent element (3) being adapted for receiving first light (4) with a first spectral distribution emitted by at least one laser light source (21, 22, 23) at the light input surface, converting at least a part of the first light with the first spectral distribution to second light (5) with a second spectral distribution, guiding the second light with the second spectral distribution to the light exit surface and coupling at least a part of the second light with the second spectral distribution out of the light exit surface, and a heat sink element (7) arranged to be in thermal contact with at least a part of the luminescent element (3) extending between the first face (31) and the second face (32), wherein the first face (31) comprises a cross-sectional area A
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: March 31, 2020
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Hendrik Johannes Boudewijn Jagt, Dominique Maria Bruls, Daniël Anton Benoy, Dirk Kornelis Gerhardus De Boer, Hugo Johan Cornelissen, Joris Jan Vrehen, Jacobus Gerardus Boerekamp, Christoph Gerard August Hoelen
  • Publication number: 20190179218
    Abstract: A light emitting device (1) comprising a luminescent element (3) comprising a first face (31) and a second face (32), the first face comprising a light input surface and one of the first face and the second face comprising a light exit surface, the luminescent element (3) being adapted for receiving first light (4) with a first spectral distribution emitted by at least one laser light source (21, 22, 23) at the light input surface, converting at least a part of the first light with the first spectral distribution to second light (5) with a second spectral distribution, guiding the second light with the second spectral distribution to the light exit surface and coupling at least a part of the second light with the second spectral distribution out of the light exit surface, and a heat sink element (7) arranged to be in thermal contact with at least a part of the luminescent element (3) extending between the first face (31) and the second face (32), wherein the first face (31) comprises a cross-sectional area A
    Type: Application
    Filed: March 6, 2017
    Publication date: June 13, 2019
    Inventors: Hendrik Johannes Boudewijn JAGT, Dominique Maria BRULS, Daniël Anton BENOY, Dirk Kornelis Gerhardus DE BOER, Hugo Johan CORNELISSEN, Joris Jan VREHEN, Jacobus Gerardus BOEREKAMP, Christoph Gerard August HOELEN
  • Publication number: 20190155101
    Abstract: The present invention relates to a holding device (100) for a light source (200), comprising a first portion (110) and a second portion (120). The first portion and the second portion extend at least partly in a common plane. The second portion is movable relative to the first portion from a first position, before insertion of the light source, in which the first portion and the second portion form a slit (130) for receiving the light source, and to a least a second position, after insertion of the light source, in which the second portion clamps the light source in the slit. Further, a lighting assembly and a display unit comprising such a holding device and a light source is disclosed. The holding device comprises fewer parts and is easier to manufacture as compared to prior art devices.
    Type: Application
    Filed: May 9, 2017
    Publication date: May 23, 2019
    Applicant: PHILIPS LIGHTING HOLDING B.V.
    Inventors: Peter Johannes Martinus BUKKEMS, Christoph Gerard August HOELEN
  • Patent number: 9349924
    Abstract: The invention provides an illumination device comprising a light source and a transmissive arrangement. The light source is arranged to generate light source light and comprises a light emitting device (LED), arranged to generate LED light and a carrier comprising a first luminescent material. The carrier is in contact with the LED and the first luminescent material is arranged to convert at least part of the LED light into first luminescent material light. The transmissive arrangement of a second luminescent material is arranged remote from the light source and is arranged to convert at least part of the LED light or at least part of the first luminescent material light and/or at least part of the LED light. The invention overcomes current limitations of remote luminescent material systems in spot lighting.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: May 24, 2016
    Assignee: KONINKLIJKE PHILILPS N.V.
    Inventors: Christoph Gerard August Hoelen, Adriaan Valster
  • Publication number: 20150362150
    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: Application
    Filed: February 25, 2014
    Publication date: December 17, 2015
    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: 9175817
    Abstract: The invention relates to a light source (10, 12) comprising a light emitter (20) arranged inside a translucent outer envelope (30, 32). The light emitter comprising a light emitting device (40) and comprising a translucent inner envelope (50) at least partially surrounding the light emitting device, the translucent inner envelope comprising a diffuser. A diameter (di) of the translucent inner envelope is smaller than a diameter (do) of the translucent outer envelope. The translucent outer envelope is connected to a base (60) not being translucent. The translucent outer envelope further comprises a symmetry axis (S). An imaginary base-plane (P) is defined substantially perpendicular to the symmetry axis (S) and intersects with a connection point (C) being part of the translucent outer envelope.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: November 3, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Christoph Gerard August Hoelen, Roger Cornelis Petrus Hoskens, Rene Theodorus Wegh, Nibu Ampalathumkal George, Xiaoqing Duan, Timothy Howard Rider, Lei Shi, Johannes Petrus Maria Ansems
  • Patent number: 8567974
    Abstract: The invention provides an illumination device (100) comprising a translucent exit window (200), one or more transmissive windows (300), arranged upstream from LED(s) and downstream from the translucent exit window (200), and one or more luminescent material layers (400), which may particularly be coated to the downstream and upstream faces of the transmissive windows (300).
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: October 29, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Christoph Gerard August Hoelen, Josephus Paulus Augustinus Deeben, George Hubert Borel, Vicky Lammens, Matthijs Hendrik Keuper, Rene Theodorus Wegh, Lars Rene Christian Waumans
  • Patent number: 8541797
    Abstract: An illuminator includes a substrate, a structured conductive layer applied to one surface of the substrate, and at least one light source connected to the structured conductive layer. The illuminator further includes an unstructured reflective layer applied on top of the structured conductive layer. The unstructured reflective layer has an essentially continuous extension at least in a surrounding of the at least one light source.
    Type: Grant
    Filed: November 14, 2005
    Date of Patent: September 24, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Christoph Gerard August Hoelen, Antonius Constant Johanna Cornelis Van Den Ackerveken, Cornelius Franciscus Jozef Rutjes, Koen Van Os, Marc Andre De Samber, Theodoor Cornelis Treurniet
  • Patent number: 8491154
    Abstract: The invention provides an illumination system comprising a light-emitting device which excites a first luminescent element, which forms part of the light-emitting device. The light emitted from the first luminescent element and/or the light emitted by the light-emitting device excite a second luminescent element, physically separated from the light-emitting device. By employing two luminescent elements, the first element in the light-emitting device, and the second element physically separated from the light-emitting device, such as on a cover plate, the conversion of light produced by the light-emitting device is performed at both a “local” and a “remote” location, respectively, and the amount of luminescent material required at the remote location may be reduced compared to the situation of the prior art where the light conversion was only performed at a remote location.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: July 23, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Roel van Woudenberg, Christoph Gerard August Hoelen
  • Patent number: 8410723
    Abstract: A light emitting diode (LED) lighting system for producing white light is disclosed. The system comprises sets of LEDs arranged to emit light with different wavelength ranges and associated with different sets of characteristics, and a driving circuit arranged to drive the LEDs. The driving circuit comprises an input for desired light intensity, color rendering index, and color temperature, an input for signals for LED temperature, a model for determining driving currents for said sets of LEDs from said parameters, signals, and characteristics for each of said sets of LEDs; and a current driver for the LEDs. At least one of the sets of LEDs comprises a first subset of LEDs with a first wavelength sub-range and a first set of characteristics, and a second subset of LEDs with a second wavelength sub-range and a second set of characteristics.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: April 2, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Peter Hubertus Franciscus Deurenberg, Johannes Petrus Maria Ansems, Christoph Gerard August Hoelen
  • Patent number: 8393752
    Abstract: A lighting device (100, 200, 300, 400) is disclosed. The device comprises a plurality of light sources (111, 119, 120, 211, 219, 220) providing light in different wavelengths, a collimating means (104, 204) having a receiving end (103, 203, 407) and an output end (114, 214, 409), wherein said light sources are arranged at said receiving end. The collimating means comprises a set of wavelength selective filters (109, 110, 115, 116, 117, 118, 215, 217) arranged as sub-collimators (106, 107, 108, 206, 207, 208) to each of said plurality of light sources such that, for each light source, said sub-collimator collimates the light from its light source, and said wavelength selective filter of said each light source is translucent for light from adjacent light sources of different wavelength, wherein said wavelength selective filters are high pass or low pass filters.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: March 12, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ramon Pascal Van Gorkom, Christoph Gerard August Hoelen, Marco Van As, Cornelis Adrianus Henricus Antonius Mutsaers, Huib Cooijmans
  • Patent number: 8388175
    Abstract: A lighting device (100, 200, 300, 400) is disclosed. The device comprises a plurality of light sources (111, 119, 120, 211, 219, 220) providing light in different wavelengths, a collimating means (104, 204) having a receiving end (103, 203, 407) and an output end (114, 214, 409), wherein said light sources are arranged at said receiving end.
    Type: Grant
    Filed: August 4, 2008
    Date of Patent: March 5, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Ramon Pascal Van Gorkom, Christoph Gerard August Hoelen, Marco Van As, Cornelis Adrianus Henricus Antonius Mutsaers, Huib Cooijmans
  • Patent number: 8337031
    Abstract: The invention relates to a color-tunable illumination system (10), to a lamp and to a luminaire. The color-tunable illumination system comprises a light source (20) emitting light of a first predefined color (B), and comprises a luminescent material (30) for converting light of the first predefined color into light of a second predefined color (A). The color-tunable illumination system further comprises shielding means (40, 42) arranged for preventing at least part of the light emitted by the light source to impinge on the luminescent material. The light source, the luminescent material and/or the shielding means are changeable from a first situation to a second situation. In the first situation the color-tunable illumination system is arranged for shielding at least part of the luminescent material against impinging light of the first predefined color.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: December 25, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Rene Theodorus Wegh, Christoph Gerard August Hoelen, Chantal Sweegers, René Jan Hendriks, Martijn Henri Richard Lankhorst, Nicolas Gerardus Antonius Peeters, Martinus Petrus Joseph Peeters, Ramon Pascal Van Gorkom, Matthijs Hendrik Keuper, Coen Theodorus Hubertus Fransiscus Liedenbaum
  • Patent number: 8310144
    Abstract: A luminair and a display device including a light emitting diode, a light exit window and a luminescent layer arranged between the light emitting diode and the light exit window. The light emitting diode emits light of a first primary color. The luminescent layer is arranged between the light emitting diode and the light exit window for converting part of the light emitted by the light emitting diode into light of a second primary color. The luminescent layer includes a garnet luminescent material of one of at least Lutetium, Cerium, Silicon and Nitrogen, or a combination of a garnet luminescent material of at least Lutetium and Cerium and a garnet luminescent material of at least Cerium and at least one of Yttrium and Gadolinium.
    Type: Grant
    Filed: October 15, 2007
    Date of Patent: November 13, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Christoph Gerard August Hoelen, Rene Theodorus Wegh, Jan Broere, Ludo Haenen
  • Publication number: 20120262904
    Abstract: The invention provides an illumination system comprising a light-emitting device which excites a first luminescent element, which forms part of the light-emitting device. The light emitted from the first luminescent element and/or the light emitted by the light-emitting device excite a second luminescent element, physically separated from the light-emitting device. By employing two luminescent elements, the first element in the light-emitting device, and the second element physically separated from the light-emitting device, such as on a cover plate, the conversion of light produced by the light-emitting device is performed at both a “local” and a “remote” location, respectively, and the amount of luminescent material required at the remote location may be reduced compared to the situation of the prior art where the light conversion was only performed at a remote location.
    Type: Application
    Filed: June 25, 2012
    Publication date: October 18, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Roel van WOUDENBERG, Christoph Gerard August HOELEN
  • Patent number: 8226263
    Abstract: The invention provides an illumination system comprising a light-emitting device which excites a first luminescent element, which forms part of the light-emitting device. The light emitted from the first luminescent element and/or the light emitted by the light-emitting device excite a second luminescent element, physically separated from the light-emitting device. By employing two luminescent elements, the first element in the light-emitting device, and the second element physically separated from the light-emitting device, such as on a cover plate, the conversion of light produced by the light-emitting device is performed at both a “local” and a “remote” location, respectively, and the amount of luminescent material required at the remote location may be reduced compared to the situation of the prior art where the light conversion was only performed at a remote location.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: July 24, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Roel Van Woudenberg, Christoph Gerard August Hoelen
  • Publication number: 20120155059
    Abstract: The invention relates to a light source (10, 12) comprising a light emitter (20) arranged inside a translucent outer envelope (30, 32). The light emitter comprising a light emitting device (40) and comprising a translucent inner envelope (50) at least partially surrounding the light emitting device, the translucent inner envelope comprising a diffuser. A diameter (di) of the translucent inner envelope is smaller than a diameter (do) of the translucent outer envelope. The translucent outer envelope is connected to a base (60) not being translucent. The translucent outer envelope further comprises a symmetry axis (S). An imaginary base-plane (P) is defined substantially perpendicular to the symmetry axis (S) and intersects with a connection point (C) being part of the translucent outer envelope.
    Type: Application
    Filed: April 23, 2010
    Publication date: June 21, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Christoph Gerard August Hoelen, Roger Cornelis Petrus Hoskens, Rene Theodorus Wegh, Nibu Ampalathumkal George, Xiaoqing Duan, Timothy Howard Rider, Lei Shi, Johannes Petrus Maria Ansems
  • Patent number: 8172415
    Abstract: The invention relates to a color-tunable illumination system (10; 12; 14) and a luminaire. The color-tunable illumination system comprises a first light source comprising a first set of light emitting diodes (21, 24), and a second light source comprising a second set of light emitting diodes (31, 37, 34). Both the first and second light source emit light of substantially a first predefined color into a light mixing chamber (60). The light mixing chamber further comprises a first luminescent material (50) converting light of the first predefined color into light of a second predefined color. The first light source is positioned with respect to the first luminescent material for illuminating the first luminescent material with a first flux of light being part of the light emitted by the first light source into the light mixing chamber.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: May 8, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Rene Theodorus Wegh, Christoph Gerard August Hoelen, Chantal Sweegers, Rene Jan Hendriks, Martijn Henri Richard Lankhorst
  • Publication number: 20120007130
    Abstract: The invention provides an illumination device comprising a light source and a transmissive arrangement. The light source is arranged to generate light source light and comprises a light emitting device (LED), arranged to generate LED light and a carrier comprising a first luminescent material. The carrier is in contact with the LED and the first luminescent material is arranged to convert at least part of the LED light into first luminescent material light. The transmissive arrangement of a second luminescent material is arranged remote from the light source and is arranged to convert at least part of the LED light or at least part of the first luminescent material light and/or at least part of the LED light. The invention overcomes current limitations of remote luminescent material systems in spot lighting.
    Type: Application
    Filed: March 17, 2010
    Publication date: January 12, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Christoph Gerard August Hoelen, Adriaan Valster
  • Patent number: 8026532
    Abstract: A color variable light-emitting device includes an array of LEDs formed on one highly resistive substrate. The array includes first, second and third set of at least one LED arranged to provide light of first, second and third color, respectively. At least one of the sets is independently addressable. Further, each light-emitting diode in the array has a separate connection to a circuitry, and at least one of the sets includes at least two LEDs, interconnected in series via the circuitry. Thus, all connections between separate LEDs, for example in the same set, can be done via the circuitry allowing for a very dense packing of the LEDs in the array, as no interconnects between different LEDs of the array need to be arranged in the array.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: September 27, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Johannes Petrus Maria Ansems, Christoph Gerard August Hoelen