Patents Assigned to Lumileds LLC
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Patent number: 11920753Abstract: A light-emitting device (LED) module is described. The LED module includes a heatsink, at least one LED on a top surface of the heatsink, and mounting features protruding from the top surface of the heat sink for alignment with an optical component. A thermally insulating material is adjacent at least portions of the mounting features that would otherwise be in contact with the optical component when mounted.Type: GrantFiled: September 27, 2022Date of Patent: March 5, 2024Assignee: LUMILEDS LLCInventors: Marc Droegeler, Wim Boogaard
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Patent number: 11912914Abstract: 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: GrantFiled: June 29, 2020Date of Patent: February 27, 2024Assignee: Lumileds LLCInventors: Jens Meyer, Andreas Tücks, Peter Josef Schmidt, Erik Roeling
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Patent number: 11912918Abstract: The invention provides a method for providing a luminescent particle (100) with a hybrid coating, the method comprising: (i) providing a luminescent core (102) comprising a primer layer (105) on the luminescent core (102); (ii) providing a main ALD coating layer (120) onto the primer layer (105) by application of a main atomic layer deposition process, the main ALD coating layer (120) comprising a multilayer (1120) with two or more layers (1121) 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 (130) onto the main ALD-coating layer (120) by application of a main sol-gel coating process, the main sol-gel coating layer (130) having a chemical composition different from one or more of the layers (1121) of the multilayer (1120).Type: GrantFiled: June 29, 2021Date of Patent: February 27, 2024Assignee: LUMILEDS LLCInventors: Jens Meyer, Andreas Tücks, Peter Josef Schmidt, Erik Roeling
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Patent number: 11906120Abstract: A hybrid function LED auxiliary lamp is provided. The auxiliary lamp comprises a housing and a lighting assembly disposed within the housing. The lighting assembly includes a plurality of LED light sources mounted on a printed circuit board. An optical manifold comprising a plurality of reflective cavities is mounted on the printed circuit board. Each reflective cavity defines a respective corresponding focal point. The LED light sources are aligned with respect to the optical manifold such that a center of each respective LED light source corresponds to a respective focal point of a reflective cavity.Type: GrantFiled: August 3, 2022Date of Patent: February 20, 2024Assignee: LUMILEDS LLCInventors: Junxin Wang, Jiangliang Wang, Dongdong Wei, Chen Cai
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Patent number: 11904759Abstract: A vehicle headlamp system includes a vehicle supported power and control system including a data bus. A sensor module can be connected to the data bus to provide information related to environmental conditions or information relating to presence and position of other vehicles and pedestrians. A separate headlamp controller can be connected to the vehicle supported power and control system and the sensor module through the bus. The headlamp controller can include an image frame buffer that can refresh held images at greater than 30 Hz speed. An active LED pixel array can be connected to the headlamp controller to project light according to a pattern and intensity defined by the image held in the image frame buffer and a standby image buffer can be connected to the image frame buffer to hold a default image.Type: GrantFiled: February 6, 2023Date of Patent: February 20, 2024Assignee: Lumileds LLCInventors: Ronald Johannes Bonne, Jyoti Kiron Bhardwaj
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Patent number: 11901702Abstract: A distributed Bragg reflector (DBR) structure on a substrate includes a high refractive index layer comprising titanium oxide (TiO2) and a low refractive index layer having a high carbon region and at least one low carbon region that contacts the high refractive index layer. Multiple layers of the high refractive index layer and the low refractive index layer are stacked. Typically, the multiple layers of the high refractive index layer and the low refractive index layer are stacked to a thickness of less than 10 microns. Each of the respective layers of the high refractive index layer and the low refractive index layer have a thickness of less than 0.2 microns.Type: GrantFiled: July 31, 2020Date of Patent: February 13, 2024Assignee: Lumileds LLCInventors: Ken Shimizu, Hisashi Masui, Ted Wangensteen
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Patent number: 11901491Abstract: Described are light emitting diode (LED) devices comprising a mesa with semiconductor layers, the semiconductor layers including an N-type layer, an active layer, and a P-type layer. The mesa has a top surface and at least one side wall, the at least one side wall defining a trench having a bottom surface. A passivation layer is on the at least one side wall and on the top surface of the mesa, the passivation layer comprises one or more a low-refractive index material and distributed Bragg reflector (DBR). A p-type contact is on the top surface of the mesa, and an n-type contact on the bottom surface of the trench.Type: GrantFiled: March 2, 2021Date of Patent: February 13, 2024Assignee: Lumileds LLCInventor: Jeffrey DiMaria
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Patent number: 11901481Abstract: An inventive light-emitting apparatus comprises an array of multiple light-emitting pixels, and one or more transmissive optical elements positioned at a light-emitting surface of the light-emitting pixel array. One or more of the light-emitting pixels is defective. Each optical element is positioned at a location of a corresponding defective light-emitting pixel, and extends over that defective pixel and laterally at least partly over one or more adjacent pixels. Each optical element transmits laterally at least a portion of light emitted by the adjacent pixels to propagate away from the array from the location of the defective pixel, reducing the appearance of the defective pixel.Type: GrantFiled: December 1, 2021Date of Patent: February 13, 2024Assignee: Lumileds LLCInventors: Toni Lopez, Hossein Lotfi, Isaac Wildeson, Oleg Shchekin
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Patent number: 11900859Abstract: A driver system controls a plurality of light emitting diodes (LEDs). The driver system includes a first driver to provide an LED current to each of the plurality of LEDs. The first driver includes a current mirror for the LED current provided to the plurality of LEDs. The driver system also includes a second driver to modulate the LED current provided to the plurality of LEDs.Type: GrantFiled: May 21, 2021Date of Patent: February 13, 2024Assignee: Lumileds LLCInventors: Wilhelmus Johannes Robertus Van Lier, Marcus Hendrikus Adrianus van Steen, Nicola Bettina Pfeffer, Rob Jacques Paul Engelen, Erkan Diken, Arjen Gerben Van Der Sijde
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Patent number: 11895400Abstract: The invention describes an imaging device (1) comprising an image sensor (2), an imaging lens (3), an infrared light source (5) to illuminate a scene (SC), and an infrared autofocus system (6) for providing an autofocus function, wherein the image sensor (2) comprises an array (21) of sensor pixels each arranged as dual pixel (22) comprising two separate pixel sensors (22a, 22b) per dual pixel (22) to record the image data (D1) as a sum signal from both pixel sensors (22a, 22b) and providing infrared data (D2) as individual signals from each of the two pixel sensors (22a, 22b) for phase contrast (PC) autofocusing, wherein an infrared filter (7) arranged between an aperture (4) of the imaging device (1) and an imaging sensor (2) and is adapted to locally transmit only a portion of the infrared light (IR) to the imaging sensor (2) by comprising at least one first area (71) arranged as infrared blocking area and at least one second area (72) arranged as infrared bandpass area.Type: GrantFiled: October 20, 2021Date of Patent: February 6, 2024Assignee: Lumileds LLCInventor: Arjen Van Der Sijde
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Patent number: 11892135Abstract: A lighting device is described. The lighting device includes a support structure, which includes a central mounting face and at least one first lateral mounting face adjacent the central mounting face and forming an included angle with the central mounting face of 60° to 90°. The device also includes at least one central light emitting element on the central mounting face and in contact with the support structure and at least one first lateral light emitting element on the first lateral mounting face and in contact with the support structure.Type: GrantFiled: February 16, 2022Date of Patent: February 6, 2024Assignee: Lumileds LLCInventor: Matthias Epmeier
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Patent number: 11892750Abstract: First and second LED arrays can include respective first and second pluralities of light-emitting areas that are separated by respective first and second boundaries. The first and second boundaries can be arranged in slightly different patterns. At least one lens can collimate light from the first LED array to form first illumination, collimate light from the second LED array to form second illumination, and illuminate the scene with the first and second illuminations. The first boundaries can form first dark bands in the first illumination. The second boundaries can form second dark bands in the second illumination, which can be slightly offset from the first dark bands at the scene.Type: GrantFiled: November 14, 2022Date of Patent: February 6, 2024Assignee: Lumileds LLCInventors: Nicola Bettina Pfeffer, Arjen Gerben Van der Sijde, Charles André Schrama
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Patent number: 11895748Abstract: 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.Type: GrantFiled: November 20, 2020Date of Patent: February 6, 2024Assignee: Lumileds LLCInventor: Zhi Hua Song
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Patent number: 11888100Abstract: A first LED with a first LED sidewall is disclosed. A second LED with a second LED sidewall facing the first LED sidewall is also disclosed. A first dynamic optical isolation material between the first LED sidewall and the second LED sidewall and configured to change an optical state based on a state trigger such that a light behavior at the first LED sidewall for a light emitted by one of the first LED and the second LED is determined by the optical state, is also disclosed.Type: GrantFiled: October 17, 2022Date of Patent: January 30, 2024Assignee: Lumileds LLCInventors: Kentaro Shimizu, Marcel Rene Bohmer, Daniel Estrada, Jacobus Johannes Franciscus Gerardus Heuts
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Patent number: 11886097Abstract: A camera can capture an image of a scene during an exposure duration of the camera. An illumination system for the camera can include a light-emitting diode (LED) array. The LED array can include a plurality of LEDs that can produce light during the exposure duration of the camera. The LED array can include one or more non-emitting areas located between adjacent LEDs in the LED array. A lens can direct the light toward the scene as illumination. The illumination can include one or more dark bands corresponding to the one or more non-emitting areas of the LED array, optionally surrounding the LEDs in the LED array. An actuator can translate at least one of the LED array or the lens during the exposure duration of the camera so as to blur the one or more dark bands in the illumination in the image of the scene.Type: GrantFiled: November 2, 2022Date of Patent: January 30, 2024Assignee: Lumileds LLCInventors: Arjen Gerben Van der Sijde, Nicola Bettina Pfeffer
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Patent number: 11889606Abstract: A LED controller for an LED pixel array includes a serial interface to an external data bus, along with an address generator connected to the serial interface and the LED pixel array. An image frame buffer is connected to the interface to receive image data and further connected to the address generator to receive an image frame buffer address. A command and control module is connected to the serial interface and configured to modify image frame buffer output signals. A calibration data storage module is connected to the command and control module to store calibration data related to pixel voltage response in the LED pixel array and enable modification of voltage provided by the dynamic power supply at least in part based on the image presented by the LED pixel array.Type: GrantFiled: August 3, 2022Date of Patent: January 30, 2024Assignee: Lumileds LLCInventors: Ronald Johannes Bonne, Zhi Hua Song
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Patent number: 11885474Abstract: An LED module is described herein. The LED module includes a heatsink with an LED mounting area and a referencing part that is separate from the heatsink. The referencing part is fixed to the heatsink and includes an LED alignment feature and an optical component alignment feature. At least one LED is provided on the LED mounting area of the heatsink and aligned with the LED alignment feature of the referencing part.Type: GrantFiled: September 28, 2022Date of Patent: January 30, 2024Assignee: Lumileds LLCInventors: Marc Droegeler, Wim Boogaard
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Publication number: 20240029443Abstract: A camera is described that includes a first imager and a processor communicatively coupled to the first imager. The first imager captures images of a roadway on which a vehicle is located when operating. The processor, when operating, generates a signal to cause a first hybridized device in the vehicle to project a first patterned light on to an object on the roadway, generates a signal to cause the first imager to capture an image of the first patterned light projected on the object, receives the image from the first imager, and detects the object on the roadway based on the first patterned light captured in the image.Type: ApplicationFiled: July 25, 2023Publication date: January 25, 2024Applicant: LUMILEDS LLCInventors: Benno Spinger, Dirk Vanderhaeghen, Ronald Johannes Bonne, Wouter Schrama, Norbert Lesch, Patrick van den Akker
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Publication number: 20240029282Abstract: An illumination system for a vehicle is described, which includes a first headlight, a second headlight, a first camera and a processor. The processor is communicatively coupled to the first headlight, the second headlight, and the first camera. When operating, the processor controls the first headlight to project a first patterned light on to an object on a roadway, controls the second headlight to project a second patterned light on to the object on the roadway, controls the first camera to capture an image of the first patterned light projected on the object and the second patterned light projected on the object, and send the captured image of the first patterned light and the image of the second patterned light to another system in the vehicle for object detection.Type: ApplicationFiled: July 25, 2023Publication date: January 25, 2024Applicant: LUMILEDS LLCInventors: Benno Spinger, Dirk Vanderhaeghen, Ronald Johannes Bonne, Wouter Schrama, Norbert Lesch, Patrick van den Akker
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Publication number: 20240027048Abstract: A headlight for a vehicle is described herein. The headlight includes a hybridized device and a controller. The hybridized device includes an array of light emitting devices that illuminate a roadway on which the vehicle is located when operating. The controller is electrically coupled to the hybridized device and, when operating, causes the array of light emitting devices to selectively project a patterned light on to an object on the roadway using the hybridized device and causes a camera to capture an image of the patterned light projected on the object.Type: ApplicationFiled: July 25, 2023Publication date: January 25, 2024Applicant: LUMILEDS LLCInventors: Benno Spinger, Dirk Vanderhaeghen, Ronald Johannes Bonne, Wouter Schrama, Norbert Lesch, Patrick van den Akker