Patents Assigned to LUMILEDS HOLDING B.V.
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Publication number: 20190317262Abstract: The invention describes a fiber light module comprising at least two light distribution fibers, wherein each light distribution fiber is enclosed in a corresponding fiber guiding tube, wherein the fiber guiding tubes are at least partly translucent and mechanically coupled by a stabilization structure, wherein the fiber light module further comprises a guiding structure mechanically coupled to the stabilization structure by means of a mechanical coupling interface, wherein the guiding structure is arranged to preserve a spatial arrangement of the stabilization structure along the mechanical coupling interface. The invention further describes a vehicle signaling light assembly comprising such a fiber light module and a vehicle signaling light which comprises such a vehicle signaling light assembly or fiber light module.Type: ApplicationFiled: April 16, 2019Publication date: October 17, 2019Applicant: Lumileds Holding B.V.Inventors: Nils BENTER, Sergej KUNZ
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Publication number: 20190301702Abstract: A vehicle light assembly comprising: a flexible lighting strip with a multitude of light-emitting diodes that are bent around at least two linear independent axes; an optically passive lighting strip terminator that is coupled to an end surface of the flexible lighting strip and is arranged such that light emitted by the light emitting diodes is at least partly recycled; a light guiding structure comprising a light receiving surface that receives light emitted by the flexible lighting strip and the lighting strip terminator and surface defines a bending of the flexible lighting strip and a primary light emission surface that emits at least a part of the light received via the light receiving surface; a coupling structure that mechanically couples the flexible lighting strip and the lighting strip terminator to the light receiving surface. The vehicle light assembly can further be comprised in a front or rear vehicle light.Type: ApplicationFiled: October 2, 2017Publication date: October 3, 2019Applicant: Lumileds Holding B.V.Inventors: Floris Maria Hermansz CROMPVOETS, Christian KLEIJNEN, Benno SPINGER
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Publication number: 20190279558Abstract: 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: ApplicationFiled: March 6, 2019Publication date: September 12, 2019Applicant: LUMILEDS HOLDING B.V.Inventors: Florent MONESTIER, Casey ISRAEL
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Publication number: 20190277461Abstract: A lighting device comprises at least one LED element for emitting light into an emission direction. A bendable light guide is arranged to guide light emitted from the LED element. The bendable light guide comprises at least a first portion formed of an elastic, light transmitting light guide material covering at least the emission direction of the LED element, and a second portion formed of an elastic, light transmitting light guide material. In order to be able to function under varying environmental conditions, the second portion is arranged spaced from the first portion in the emission direction by a separation space.Type: ApplicationFiled: October 12, 2018Publication date: September 12, 2019Applicant: Lumileds Holding B.V.Inventors: Florent MONESTIER, Christian KLEIJNEN
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Publication number: 20190279969Abstract: 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: ApplicationFiled: March 6, 2019Publication date: September 12, 2019Applicant: LUMILEDS HOLDING B.V.Inventors: Barbara MÜLDERS, Danijel LABAS
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Publication number: 20190277462Abstract: 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: ApplicationFiled: March 6, 2019Publication date: September 12, 2019Applicant: LUMILEDS HOLDING B.V.Inventors: Florent MONESTIER, Christian KLEIJNEN
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Patent number: 10400986Abstract: Disclosed lens designs enable uniform light distribution without hot spot, achieving wider transfer functions of light compared with traditional lenses, with a benefit of reducing the number of light sources needed and overall cost for direct-lit backlight device. A disclosed lens includes a beam shaping element on the top thereof and a backlight device incorporating the lens and the beam shaping element to eliminate a light hot spot produced by the backlight device and obtain a uniform light distribution at the illumination field. The disclosed lens is especially useful when extremely wider transfer function or extremely thin backlight is needed.Type: GrantFiled: April 24, 2018Date of Patent: September 3, 2019Assignee: Lumileds Holding B.V.Inventor: Chunxia Feng
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Publication number: 20190257483Abstract: 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: ApplicationFiled: February 15, 2019Publication date: August 22, 2019Applicant: LUMILEDS HOLDING B.V.Inventors: Ulrich HECHTFISCHER, Florian HELLING
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Publication number: 20190234596Abstract: 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: ApplicationFiled: September 18, 2018Publication date: August 1, 2019Applicant: Lumileds Holding B.V.Inventor: Wilbert HEFFELS
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Publication number: 20190225535Abstract: 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: ApplicationFiled: January 22, 2019Publication date: July 25, 2019Applicant: Lumileds Holding B.V.Inventors: Peter SCHMIDT, Cas GROENENDIJK
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Publication number: 20190225881Abstract: 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: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicants: Lumileds Holding B.V., Ludwig-Maximilians-Universitaet MuenchenInventors: Peter Josef SCHMIDT, Philipp-Jean STROBEL, Wolfgang SCHNICK
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Publication number: 20190199900Abstract: A system is provided for testing a flash emitter is disclosed. The system may include a mounting panel comprising a plurality of mount points at a center point and at positions that correspond to vertices of at least two different field-of-view configurations. The system may include a device holder separated from the mounting panel by a predetermined distance of a platform. The system may include an adjustment rack coupled to the device holder and the platform, the adjustment rack configured to change a position of the device holder relative to the center point of the mounting panel such that the flash emitter of a device in the device holder is aligned the center point of the mounting panel.Type: ApplicationFiled: December 19, 2018Publication date: June 27, 2019Applicant: Lumileds Holding B.V.Inventors: Chunxia FENG, Nicola Bettina PFEFFER, Yu LI
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Publication number: 20190193055Abstract: The present invention relates to a catalyst comprising manganese oxides wherein the manganese oxides comprise: MnO in an amount of 40-60 mole %, based on mole of Mn; Mn2O3 in an amount of 40-60 mole %, based on mole of Mn; and Mn3O4 in an amount of 1-10 mole %, based on mole of Mn. The present invention also relates to a method for preparing the catalysts and the use of the catalyst in an air purifier. The catalyst according to the present invention can effectively catalyze formaldehyde oxidation at ambient temperature so as to effectively remove indoor formaldehyde being present in relative low amounts.Type: ApplicationFiled: December 21, 2018Publication date: June 27, 2019Applicant: Lumileds Holding B.V.Inventors: Jiangliang WANG, Chen CAI, Xiaoqiang LI
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Publication number: 20190195456Abstract: A lighting device comprises a light-emitting module with light-emitting elements, wherein the light-emitting elements are arranged adjacent to each other and are configured to emit light towards a light-emitting side. The light-emitting module is configured such that the light-emitting elements can be addressed partially independently of each other, such that some may be brought into a switched-on state while others are brought into a switched-off state. A top layer is disposed on the light-emitting module at the light-emitting side. Further comprising a switching material capable of a reversible change in transmittance for the light emitted by changing to a higher transmittance in regions where the top layer situated on light-emitting elements in the switched-on state or to a lower transmittance in regions of the top layer situated in the switched-off state. The invention further refers to methods for producing and operating a lighting device and using a lighting device.Type: ApplicationFiled: December 20, 2018Publication date: June 27, 2019Applicant: Lumileds Holding B.V.Inventors: Nicola Bettina PFEFFER, ARJEN VAN DER SIJDE, Marcel BOHMER
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Publication number: 20190184891Abstract: The invention describes an illuminant for a vehicle headlight comprising a carrier and an electrical driver. Mounted on the carrier are a high-beam LED, a low-beam LED and a vehicle light detector. Additionally, a mechanical interface is included for mounting the illuminant in a corresponding socket of the vehicle headlight in a detachable way, and an electrical connector for supplying electrical power to the electrical driver. The electrical driver is arranged to receive vehicle light detection signals from the vehicle light detector to determine vehicle light by means of the vehicle light detection signals, and to provide a drive current to the high-beam LED or the low-beam LED depending on the determined vehicle light. Illuminant is further arranged to detect ambient light other than the vehicle light, such detection of ambient light influencing electrical driver in controlling the LEDs.Type: ApplicationFiled: December 14, 2018Publication date: June 20, 2019Applicant: Lumileds Holding B.V.Inventor: Manuel GRAVE
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Patent number: 10295141Abstract: Embodiments of the present disclosure relate to a lighting strip, comprising a flexible printed circuit strip which comprises a plurality of wiring portions and a plurality of respective carrying portions, the wiring portions are used to supply electrical power to electric elements disposed on the carrying portions, and the carrying portions protrude from the wiring portions and are adapted to be bent around the wiring portions; a plurality of solid-state lighting elements respectively mounted on the carrying portions; wherein the wiring portion is provided with at least one pitch adjusting portion for adjusting a pitch between two adjacent carrying portions. Embodiments of the present disclosure also relate to a lighting device.Type: GrantFiled: June 2, 2016Date of Patent: May 21, 2019Assignee: Lumileds Holding B.V.Inventors: Coon Chow Tan, Su Ping Tan, Tomonari Ishikawa, Selvakumar Palaniandy
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Publication number: 20190146142Abstract: A thin plastic light guide is formed to have cavities on one surface and TIR (total internal reflection) structures directly above the cavities. LEDs mounted on a printed circuit board are positioned in the cavities. The cavity walls are shaped to refract the LED light and direct the LED light toward the TIR structures to most efficiently make use of the TIR structures. The TIR structures may have a cusp or cone shape. The top ceiling of the cavities may be shaped to direct light at the TIR structure so as to leak through the TIR structure and blend the light with light leaking through surrounding portions of the light guide. The LEDs may be distributed only near the edges of the light guide or over the entire back surface of the light guide. A diffuser sheet may be laminated over the light guide to further mix the light.Type: ApplicationFiled: November 8, 2016Publication date: May 16, 2019Applicant: Lumileds Holding B.V.Inventors: Varun Dev KAKKAR, Erno FANCSALI, Huub KONIJN
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Publication number: 20190145600Abstract: 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: ApplicationFiled: November 14, 2018Publication date: May 16, 2019Applicant: Lumileds Holding B.V.Inventors: Benno SPINGER, Casey ISRAEL
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Patent number: D854715Type: GrantFiled: February 28, 2018Date of Patent: July 23, 2019Assignee: Lumileds Holding B.V.Inventors: Chunheng Kang, Lan Li, Hui Ling Pan, Shanhai Guo, Xin Sheng, Yuanyuan Wang, Shengjin Chen, Fangzhong Shen
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Patent number: D862743Type: GrantFiled: March 7, 2018Date of Patent: October 8, 2019Assignee: Lumileds Holding B.V.Inventors: Chunheng Kang, Colin Huang, Mark Ma, Xin Sheng, Song Yang