公开(公告)号：US11557703B2

公开(公告)日：2023-01-17

申请号：US16226487

申请日：2018-12-19

申请人： Lumileds LLC

发明人： Kentaro Shimizu ,  Marcel Rene Bohmer ,  Daniel Estrada ,  Jacobus Johannes Franciscus Gerardus Heuts

IPC分类号： H01L33/58 ,  F21S41/141 ,  F21S41/40 ,  F21V14/00 ,  G02F1/01 ,  G02F1/015 ,  G02F1/163 ,  H01L25/075 ,  H01L27/15 ,  H01L33/50 ,  H01L51/52 ,  F21Y115/10 ,  F21S41/64 ,  F21V23/00 ,  F21V23/02

摘要： A first pixel with a first pixel sidewall is disclosed. A second pixel with a second pixel sidewall facing the first pixel sidewall is also disclosed. A first dynamic optical isolation material between the first pixel sidewall and the second pixel sidewall and configured to change an optical state based on a state trigger such that a light behavior at the first pixel sidewall for a light emitted by one of the first pixel and the second pixel is determined by the optical state, is also disclosed.

公开(公告)号：US20230007751A1

公开(公告)日：2023-01-05

申请号：US17785360

申请日：2020-12-16

申请人： Lumileds LLC

发明人： Ronald Johannes Bonne ,  Sridhar Vajapey

IPC分类号： H05B45/50 ,  H05B45/12 ,  H05B45/325

摘要： A micro light-emitting diode (μLED) array system can include an image post processor configured to translate received image data to pulse width modulation (PWM) and/or analog current control data, an input frame buffer configured to receive the control data, a plurality of individually controllable μLEDS of a μLED array, a return frame buffer that receives data indicating a μLED electrical output characteristic including an output current, and compare circuitry configured to compare image data from the input and return frame buffers, and transfer comparison data to the image post processor, the image post processor configured to alter individual μLED control data based on the comparison data.

公开(公告)号：US20220418069A1

公开(公告)日：2022-12-29

申请号：US17777916

申请日：2020-11-20

申请人： Lumileds LLC

发明人： Zhi Hua Song

IPC分类号： H05B45/325 ,  H05B45/14

摘要： A light-emitting diode (LED) array includes an array of pixel assemblies and a pulse width modulator. The pulse width modulator generates pulse width modulation (PWM) signals for controlling a duty cycle of each of the pixels. The pixel assemblies each include an LED, a switching circuit, and a close loop circuit. The switching circuit receives a PWM signal and alternately turns on and off the LED based on the PWM signal. The close loop circuit regulates an LED current provided by the switching circuit to the LED based on a feedback signal received from the switching circuit.

公开(公告)号：US11535798B2

公开(公告)日：2022-12-27

申请号：US17035337

申请日：2020-09-28

申请人： LUMILEDS LLC

发明人： Peter Josef Schmidt ,  Detlef Wiechert

IPC分类号： H01L33/30 ,  H01L33/50 ,  H01L33/32 ,  C09K11/77 ,  C01G15/00 ,  C09K11/08 ,  C09K11/64

摘要： 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+.

公开(公告)号：US11532766B2

公开(公告)日：2022-12-20

申请号：US17246398

申请日：2021-04-30

申请人： LUMILEDS LLC

发明人： Toni Lopez ,  Venkata Ananth Tamma

IPC分类号： H01L33/10 ,  G02B6/122 ,  H01L33/30 ,  H01L33/40 ,  H01L33/42 ,  H01L33/46 ,  B82Y20/00 ,  G02B5/00 ,  H01L33/32 ,  G02B1/00 ,  G02B27/28 ,  G02B5/30

摘要： A system, method and device for use as a reflector for a light emitting diode (LED) are disclosed. The system, method and device include a first layer designed to reflect transverse-electric (TE) radiation emitted by the LED, a second layer designed to block transverse-magnetic (TM) radiation emitted from the LED, and a plurality of ITO layers designed to operate as a transparent conducting oxide layer. The first layer may be a one-dimension (1D) distributed Bragg reflective (DBR) layer. The second layer may be a two-dimension (2D) photonic crystal (PhC), a three-dimension (3D) PhC, and/or a hyperbolic metamaterial (HMM). The 2D PhC may include horizontal cylinder bars, vertical cylinder bars, or both. The system, method and device may include a bottom metal reflector that may be Ag free and may act as a bonding layer.

公开(公告)号：US11523482B2

公开(公告)日：2022-12-06

申请号：US17118332

申请日：2020-12-10

申请人： Lumileds LLC

发明人： Yifeng Qiu

IPC分类号： H05B45/20

摘要： Various embodiments include apparatuses and methods control apparatus to color tune a light-emitting diode (LED) array. In one specific example, a control apparatus to color tune a light-emitting diode (LED) array for perceptually uniform color-tuning is disclosed. The apparatus includes a correlated color temperature (CCT)-control device that is adjustable by an end-user to a desired color temperature of the LED array and producing an output signal corresponding to the desired color temperature. A storage device is electrically coupled to the CCT-control device to correlate a mechanical movement range of the CCT-control device to provide substantially uniform increases in perceptual CCT values from the LED array based on a set of N predetermined values. Other apparatuses and methods are described.

公开(公告)号：US11521298B2

公开(公告)日：2022-12-06

申请号：US16456852

申请日：2019-06-28

申请人： Lumileds LLC

发明人： Ronald Bonne ,  Jyoti Kiron Bhardwaj

IPC分类号： G06T3/40 ,  G09G3/20 ,  H05B45/50 ,  F21S41/141 ,  H05B45/00 ,  H05B47/105 ,  F21V23/04

摘要： An LED controller system includes an LED controller including an image frame buffer able to receive image data. A sensor processing module is used to receive and process sensor data and a decision module is used to determine actions taken in response to processed sensor data. An image creation module is used to create images to be sent to the image frame buffer of the LED controller.

公开(公告)号：US11519581B2

公开(公告)日：2022-12-06

申请号：US16340979

申请日：2017-10-10

申请人： Lumileds LLC

发明人： Floris Maria Hermansz Crompvoets ,  Andreas Timinger ,  Christian Kleijnen ,  Ralph Hubert Peters ,  Adam Lind ,  Rob Bastiaan Maria Einig ,  Tobias Fink

IPC分类号： F21S43/249 ,  F21S43/14 ,  F21S43/19 ,  F21S43/243 ,  F21S43/245 ,  F21S43/15 ,  F21S43/241 ,  F21S43/247 ,  F21S43/30 ,  F21S43/239 ,  B60Q1/28 ,  B60Q1/30 ,  F21V8/00 ,  G02B6/00 ,  F21Y103/30 ,  F21Y115/10 ,  F21Y107/70 ,  F21Y103/10

摘要： A vehicle light assembly comprising: a flexible lighting strip comprising a multitude of light-emitting diodes, wherein the flexible lighting strip is arranged to be bent around at least two, more preferred three linear independent axes; a light guiding structure comprising a light receiving surface and a primary light emission surface, wherein the light receiving surface receives light emitted by the flexible lighting strip, wherein the primary light emission surface emits at least a part of the light received via the light receiving surface, and wherein the light receiving surface is arranged to define a bending of the flexible lighting strip; a coupling structure that is arranged to mechanically couple the flexible lighting strip to the light receiving surface in accordance with the bending defined by the light receiving surface. The invention further describes a vehicle rear light or vehicle front light comprising the vehicle light assembly.

公开(公告)号：US20220377222A1

公开(公告)日：2022-11-24

申请号：US17326494

申请日：2021-05-21

申请人： Lumileds LLC

发明人： Erkan Diken ,  Arjen Gerben Van Der Sijde ,  Nicola Bettina Pfeffer ,  Wilhelmus Johannes Robertus Van Lier ,  Marcus Hendrikus Adrianus van Steen ,  Rob Jacques Paul Engelen

IPC分类号： H04N5/235 ,  H04N5/225

摘要： An apparatus includes a neuromorphic vision unit, an array, and a controller. The neuromorphic vision unit includes a plurality of pixels to photoelectrically produce data based on light received from an object in a scene. The array includes a plurality of light sources. The controller controls the plurality of light sources at one of a plurality of granularities, at least in part based on the data.

公开(公告)号：US20220373156A1

公开(公告)日：2022-11-24

申请号：US17748694

申请日：2022-05-19

申请人： LUMILEDS LLC

发明人： Marc Droegeler ,  Thorsten Lenzen ,  Matthias Holtrup ,  Joseph Hendrik Anna Maria Jacobs

IPC分类号： F21S45/47 ,  F21S41/141 ,  F21K9/90 ,  F21K9/68

摘要： A heatsink, a light-emitting diode (LED) module and a corresponding method of manufacture are described. A heatsink includes an electrically conductive heatsink core and an electrically insulating layer covering at least the first surface of the electrically conductive heatsink core. The electrically conductive heatsink core has a first pin that is integral with the electrically conductive heatsink core and protrudes from a first surface of the heatsink core. At least the first surface of the heatsink core is covered by an electrically insulating layer, which leaves at least portions of a lateral surface of the first pin exposed from the electrically insulating layer.