Patents Assigned to LUMILEDS HOLDING B.V.
  • Publication number: 20200103581
    Abstract: A light source includes a plurality of light emitting diodes, with at least some light emitting diodes sized between 30 microns and 500 microns. A plurality of micro-optics are associated with a light guide plate and sized less than 1 millimeter, with each micro-optic positioned over at least one of the plurality of light emitting diodes. At least some of the combinations of light emitting diode and micro-optics associated with the light guide plate are positioned within a distance to each other sufficient to provide a substantially uniform light beam.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 2, 2020
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Sudhir Subramanya, Willem Sillevis-Smitt, Frederic Diana, Charles Schrama, Alan McReynolds, Yifing Qiu
  • Publication number: 20200105827
    Abstract: A light source useful for architectural lighting, general lighting, street lighting, or other lighting applications includes a plurality of light emitting diodes. A least some light emitting diodes can be sized between 30 microns and 500 microns. A plurality of micro-optics sized less than 1 millimeter are positioned over at least some of the plurality of light emitting diodes and a controller is connected to selectively power groups of the plurality of light emitting diodes to provide different light beam patterns.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 2, 2020
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Sudhir Subramanya, Willem Sillevis-Smitt, Frederic Diana, Charles Schrama, Alan McReynolds, Yifing Qiu
  • Publication number: 20200105972
    Abstract: Techniques, devices, and systems are disclosed and include LEDs with a first flat region, at a first height, including a plurality of epitaxial layers such as a first n-layer, a first p-layer, and a first active layer. A second flat region at a second height and parallel to the first flat region includes at least a second n-layer. Sloped sidewalls connect the first flat region and the second flat region and include at least a third n-layer. The p-layer of the first flat region is thicker that at least a portion of the third region. A p-contact is formed on the first p-layer and an n-contact is formed on the second n-layer.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 2, 2020
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Costas DIMITROPOULOS, Sungsoo YI, John Edward EPLER, Byung-Kwon HAN
  • Publication number: 20200103091
    Abstract: A light source useful for architectural lighting, general lighting, street lighting, or other lighting applications includes a plurality of light emitting diodes, with at least some light emitting diodes sized between 50 microns and 500 microns. A plurality of micro-optics sized less than 1 millimeter are positioned over at least some of the plurality of light emitting diodes. Each combination of light emitting diode and associated micro-optic is positioned within a Rayleigh distance to each other, sufficient to both present a substantially uniform visual appearance and provide a substantially uniform light beam. In some embodiments the height of the light emitting diodes, their supporting substrate and electrical traces, and associated optics is less than 5 millimeters.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 2, 2020
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Sudhir Subramanya, Willem Sillevis-Smitt, Frederic Diana, Charles Schrama, Alan McReynolds, Yifing Qiu
  • Patent number: 10600937
    Abstract: Devices and techniques are disclosed herein which include a first LED device layer, a second LED device layer, and an adhesive bondline disposed between the first LED device layer and the second LED device layer. The adhesive bondline includes a bondline thickness, a plurality of spacers disposed within the adhesive bondline, and a silicone matrix. The plurality of spacers may have a diameter or a shortest axis between 0.5 and 10 micrometers and the coefficient of variation is 10% or less. The plurality of spacers may be include SiO2, alumina, soda lime glass, may be inorganic, or polymeric.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: March 24, 2020
    Assignee: LUMILEDS HOLDING B.V.
    Inventors: Daniel Bernardo Roitman, Sujan-Ehsan Wadud, Michael Laughner, William Collins, Darren Dunphy, Prashant Kumar Singh
  • Patent number: 10591131
    Abstract: A lighting arrangement and a method of forming an illumination beam are described. A plurality of LED lighting elements is operable to emit light. A plurality of collimator elements is arranged to collimate light emitted from the LED lighting elements. A first projection element is arranged to project light emitted from the collimator elements onto a spatially controllable reflector element. The spatially controllable element comprises a plurality of reflector elements adjustable between a first and a second position. In the first position, the light is reflected into the direction of a second projection element to form a projected illumination beam. In the second position, light is reflected into a different direction to not contribute to the projected illumination beam.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: March 17, 2020
    Assignee: LUMILEDS HOLDING B.V.
    Inventors: Benno Spinger, Casey Israel
  • Publication number: 20200084889
    Abstract: A lighting device, a method of manufacturing a lighting device and a support are described. A support includes a layered structure of alternating conductors and insulating layers. The layered structure includes a mounting section and a body section adjacent the mounting section. The mounting section includes at least one mounting face that has an arrangement direction and at least three alternating contact sections along the arrangement direction. Each contact section is electrically coupled to one of the conductors and separated from a neighboring one of the contact sections by one of the insulating layers. The body section has a width that protrudes sidewards from the at least one mounting face and a length that extends substantially parallel to the arrangement direction.
    Type: Application
    Filed: September 6, 2019
    Publication date: March 12, 2020
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Matthias EPMEIER, Michael DECKERS, Frank GIESE, Petra WELLMEIER, Carsten WEBER, Georg HENNINGER
  • Publication number: 20200080716
    Abstract: Lighting devices and methods of manufacturing lighting devices are described. A lighting devices includes at least one thermally conductive element, at least one lighting module thermally coupled to the at least one thermally conductive element, and an overmould at least partially encasing the at least one thermally conductive element, the overmould comprising at least one receiving portion. The at least one circuit board is mounted in the at least one receiving portion and is at least partially exposed from the overmould. The at least one circuit board includes at least one connector and at least two bond pads. The at least one connector includes surface accessible conduction lines.
    Type: Application
    Filed: September 6, 2019
    Publication date: March 12, 2020
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Juergen MERTENS, Georg HENNINGER
  • Patent number: 10553766
    Abstract: The invention describes a method of manufacturing an LED module, comprising the steps of providing a translucent encapsulant comprising a number of layers to enclose a number of LEDs of the LED module; modifying the surface structure of an outer surface of a layer to form at least one dense scattering region corresponding to the position of an LED of the LED module; to form at least one sparse scattering region that does not correspond to the position of an LED of the LED module; and to form a transition scattering region between a dense scattering region and a sparse scattering region. The invention further describes an LED module, and a device comprising a device housing and at least one such LED module.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: February 4, 2020
    Assignee: LUMILEDS HOLDING B.V.
    Inventors: Norbertus Antonius Maria Sweegers, Floris Maria Hermansz Crompvoets, Christian Kleijnen, Gerard Kums
  • Publication number: 20200028039
    Abstract: The invention relates to a light emitting device (LED), especially a LED at least partly embedded in transparent or translucent silicone fill, whereby the embedded LED is housed in a white silicone housing. Here and in the following, the wording transparent silicone fill always means a transparent or translucent silicone material. The invention further relates to a method for embedding the LED partly in a white silicone housing on the one hand and partly in transparent silicone fill on the other hand. The invention finally relates to the transparent silicone fill. The inner part of the LED device is at least partly embedded in transparent silicone fill, wherein the at least partly embedded LED device is housed in a white silicone housing comprising a white box silicone. A part of the inner part of the LED device is embedded in the white box silicone.
    Type: Application
    Filed: February 15, 2019
    Publication date: January 23, 2020
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Floris Maria Hermansz CROMPVOETS, Christian KLEIJNEN, Georg HENNINGER, Danijel LABAS, Gerhard HEBBINGHAUS
  • Patent number: 10539289
    Abstract: A laser lighting module for a vehicle headlight includes at least one laser, a scanning arrangement, a light conversion device, a safety mirror, a safety detector and a safety controller. The laser emits light in a first wavelength range and the scanning arrangement moves a beam of the light within a scanning solid angle so a spot of the light moves across the light conversion device. The light conversion device converts a fraction of the light to converted light in a different wavelength range than the first and emits a mixture of transmitted and converted light. The safety mirror is arranged within the scanning solid angle such that at least 90% of the transmitted light hits the safety mirror. The safety controller receives the control signal, generated by the safety detector from the safety detection light, and switches off the laser if the control signal exceeds a first threshold value.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: January 21, 2020
    Assignee: LUMILEDS HOLDING B.V.
    Inventors: Hans Helmut Bechtel, Thomas Diederich
  • Patent number: 10527247
    Abstract: An incandescent lamp for a vehicle headlight comprising a transparent vessel that encloses at least one filament and the vessel is at least partly covered with a coating. The coating comprises at least one pigment, which is arranged such that light emitted by the at least one filament and traversing the coating is transformed to transformed light. The transformed light is characterized by a chromaticity according to the CIE 1931 xy-chromaticity with y being in between the Planckian locus and y=0.5*x+0.205 and 0.36<x<0.42, and wherein the at least one pigment comprises a mixture of Co—Al oxide and Co—Al—Cr oxide, the mixture being characterized by a ratio of a concentration in mass percentage Cm(Co—Al oxide) of Co—Al oxide and a concentration in mass percentage Cm(Co—Al—Cr oxide) of Co—Al—Cr oxide in the coating of 90/10?Cm(Co—Al oxide)/Cm(Co—Al—Cr oxide)?30/70.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: January 7, 2020
    Assignee: LUMILEDS HOLDING B.V.
    Inventors: Jacek Kowalski, Jean-Sebastien Straetmans, Lukas Kuepper, Maciej Dawid Pakulski
  • Patent number: 10520152
    Abstract: The invention describes a laser-based light source (100) which is adapted to use the angular dependence of the reflection of polarized laser light (10) at a surface of a conversion material to control especially the color point of light emitted by means of the laser-based light source (100). The reflected laser light is within a first wavelength range and the converted light is in a second wavelength range different from the first wavelength range such that the color point of the light emitted by means of the laser-based light source (100) in a defined solid angle depends on the ratio between reflected and converted light. The invention further describes a corresponding method of light emission control, a vehicle headlight (200) comprising such a laser-based light source (100) and a lighting system comprising such vehicle headlights (200).
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: December 31, 2019
    Assignee: LUMILEDS HOLDING B.V.
    Inventor: Steffen Zozgornik
  • Patent number: 10516082
    Abstract: The present invention relates to a device for emitting light. In one embodiment, an LED has a nano-particle (e.g., quantum dot) coating layer over it for down-converting the light from the LED. The nano-particles are in a dispersion medium for dispersing the nano-particles. The dispersion medium is mixed with a weak acid or a salt thereof. The nano-particles may be coated with silica and the solution is pre-treated with a base or alkali-silanolate to increase the stability of the nano-particles in light conversion.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: December 24, 2019
    Assignee: LUMILEDS HOLDING B.V.
    Inventors: Marcel Rene Bohmer, Roelof Koole
  • Patent number: 10473313
    Abstract: An electrical coupling device for coupling functional elements of a lighting system comprises a first wire, a second wire, at least one spacer and at least one coupling spacer. The spacer is arranged to provide a first defined distance between the first and second wires at the position of the spacer. The coupling spacer is arranged to provide a second defined distance between the first and second wires at the position of the coupling spacer and to electrically couple the functional element to the electrical coupling device. Wherein the spacer and the coupling spacer are physically separated from each other, and the coupling spacer, the spacer, and the first and second wires are embedded in a flexible cover. The flexible cover enables flexibility in all three dimensions at a position between the spacer and the coupling spacer. Further a lighting system may comprise the electrical coupling device and functional element.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: November 12, 2019
    Assignee: LUMILEDS HOLDING B.V.
    Inventor: Wilbert Heffels
  • Publication number: 20190316750
    Abstract: An incandescent lamp for a vehicle headlight comprising a transparent vessel that encloses at least one filament and the vessel is at least partly covered with a coating. The coating comprises at least one pigment, which is arranged such that light emitted by the at least one filament and traversing the coating is transformed to transformed light. The transformed light is characterized by a chromaticity according to the CIE 1931 xy-chromaticity with y being in between the Planckian locus and y=0.5*x+0.205 and 0.36<x<0.42, and wherein the at least one pigment comprises a mixture of Co—Al oxide and Co—Al—Cr oxide, the mixture being characterized by a ratio of a concentration in mass percentage Cm(Co—Al oxide) of Co—Al oxide and a concentration in mass percentage Cm(Co—Al—Cr oxide) of Co—Al—Cr oxide in the coating of 90/10?Cm(Co—Al oxide)/Cm(Co—Al—Cr oxide)?30/70.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 17, 2019
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Jacek KOWALSKI, Jean-Sebastien STRAETMANS, Lukas KUEPPER, Maciej Dawid PAKULSKI
  • Publication number: 20190279969
    Abstract: The invention refers to a lighting device. The object to provide a lighting device in particular with flexible properties, wherein the mechanical robustness with respect to thermomechanical stresses is improved, is solved in that the lighting device comprises: at least one light-emitting element, wherein the at least one light-emitting element is arranged on connection elements for an electronic connection to the at least one light-emitting element, at least one encapsulating material surrounding at least part of the connection elements, wherein at least one connection element comprises at least one spring section. The invention further refers to a method for producing a lighting device and a use of a lighting device.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 12, 2019
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Barbara MÜLDERS, Danijel LABAS
  • Publication number: 20190277462
    Abstract: A flexible lighting strip comprises a multitude of light-emitting diodes (LEDs) and is arranged to bend around at least two, preferably three, linear independent axes. The LEDs are arranged in at least two groups, wherein each group comprises at least two LEDs arranged in an electrical series connection. The groups are arranged in an electrical parallel connection to an anode and cathode track. The groups are arranged in a longitudinal arrangement such that a last LED of a first group is arranged next to the first LED of a second group, and are mechanically coupled via an electrically isolated coupling structure such that a stiffness of the flexible lighting strip between the last LED of the first group and the first LED of the second group is matched to a mechanical stiffness between neighboring LEDs comprised by one of the first or second.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 12, 2019
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Florent MONESTIER, Christian KLEIJNEN
  • Publication number: 20190279558
    Abstract: The invention describes a passive matrix single-color LED display assembly comprising a matrix of row conductor lines and column conductor lines; an array of direct-emitting LED packages, wherein the anode of each LED package is electrically connected to one of the row conductor lines and the cathode of that LED package is connected to one of the column conductor lines; and a driver configured to apply a bias voltage to a row conductor line and to apply a bias voltage to a column conductor line according to an image to be displayed.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 12, 2019
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Florent MONESTIER, Casey ISRAEL
  • Publication number: 20190257483
    Abstract: The invention describes a light converting device comprising: a light converter with a light entrance surface and a light emission surface, wherein the light converter is arranged to convert laser light scanned over the light entrance surface to converted light, wherein a peak emission wavelength of the converted light is in a longer wavelength range than a laser peak emission wavelength of the laser light, a confinement structure enclosing the light converter, wherein the confinement structure is arranged to preserve a geometric shape of the light converter in case of a mechanical failure of the light converter. The invention further describes a laser-based light source comprising such a light converting device. The invention finally describes a vehicle headlight comprising such a laser-based light source.
    Type: Application
    Filed: February 15, 2019
    Publication date: August 22, 2019
    Applicant: LUMILEDS HOLDING B.V.
    Inventors: Ulrich HECHTFISCHER, Florian HELLING