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公开(公告)号：US20210062990A1
公开(公告)日：2021-03-04
申请号：US17002147
申请日：2020-08-25
IPC分类号： F21S41/153 , F21K9/90
摘要： A lighting device according to the invention comprises at least one semiconductor layer; at least one light emission surface comprising an array of high luminance areas configured to emit light at a first local luminance level and low luminance areas configured to emit no light or to emit light at a second local luminance level lower than the first local luminance level; a plurality of semiconductor light emitting devices formed in the semiconductor layer to define the plurality of high luminance areas; wherein the high luminance areas and the low luminance areas are arranged in accordance with a predefined light emission profile of the light emission surface.
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公开(公告)号：US10935205B2
公开(公告)日：2021-03-02
申请号：US16720461
申请日：2019-12-19
发明人： Ying Huang , Jimmy Xiao , Shengjin Chen
IPC分类号： F21V9/16 , F21S41/43 , F21S41/147 , F21S41/36
摘要： A light source (210, 310) for a reflection luminaire, a reflection luminaire (200, 300) for an automobile and an automotive headlamp comprising the reflection luminaire (200, 300) are disclosed. The light source (210, 310) comprises a substrate (212), and a light emitting component (214), being a Chip Scale Package light emitting diode, and a light absorbing component (216) on the substrate (212). The light absorbing component (216) is configured to absorb light which is emitted from a side surface of the light emitting component (214) and incident on a surface of the substrate (212). The light source facilitates reducing or eliminating glare of a CSP LED reflection luminaire for an automobile.
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公开(公告)号：US10910433B2
公开(公告)日：2021-02-02
申请号：US16358085
申请日：2019-03-19
发明人： Hisashi Masui , Ken Shimizu , Emma Dohner
摘要： The pcLED pixels in a phosphor-converted LED array each comprise an optical element on the light-emitting surface above the phosphor layer. In methods for making such pixelated LED arrays, a thin layer of a sacrificial phosphor carrier substrate is retained as the optical element on the output surface of the phosphor pixels upon completion of the fabrication process.
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公开(公告)号：US20210003264A1
公开(公告)日：2021-01-07
申请号：US16909277
申请日：2020-06-23
IPC分类号： F21S45/60 , F21S41/30 , F21S45/43 , F21S41/13 , F21S41/148 , F21S41/162 , H05B45/395 , H05B45/14 , H05B47/105
摘要： A light emitting device is provided comprising: a body; a base portion configured for mounting the light emitting device to a reflector of a headlight or taillight, the base portion being arranged at a first end portion of the body; at least one light-emitting diode arranged at or inside of the body; at least one infrared light source provided at the body and configured to emit infrared light; and a thermal barrier arranged in between the at least one infrared light source and the at least one LED and configured to block at least part of radiation emitted from the at least one infrared light source towards the at least one LED.
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公开(公告)号：US10883707B2
公开(公告)日：2021-01-05
申请号：US16662935
申请日：2019-10-24
IPC分类号： F21V23/00 , B60Q3/80 , F21S43/14 , F21S41/141 , B60Q1/00
摘要： Lighting devices and methods of manufacture are described. A lighting device includes first wires and second wires. Each of the first wires has a first longitudinal axis and a bent section. Each of the second wires has a second longitudinal axis and a bent section. The first wires and the second wires intersect one another within intersection regions. The first longitudinal axis and the second longitudinal axis are in the same plane. The bent section of each of the first wires is arranged in one of the intersection regions. The bent section of each of the second wires is arranged between two intersection regions. A predefined minimum distance is provided between the first wires and the second wires in the intersection regions. The lighting device further includes light-emitting elements electrically coupled to the first wires and the second wires at the intersection regions.
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公开(公告)号：US10811460B2
公开(公告)日：2020-10-20
申请号：US16144751
申请日：2018-09-27
摘要： A uLED and method for regrowth with thinner deposition on sidewall are disclosed. The uLED and method include a growth substrate including flat first and second regions, where the growth substrate is thicker in the first region as compared to the second region, and a third region of sloped sidewalls connecting the first and second regions, the topography forming a regular geometric pattern, a plurality of semiconductor epitaxial layers covering the first, second, and third regions including at least a p-n junction layer including a light emitting active region of direct bandgap semiconductor, sandwiched between n-type and p-type layers, each of the plurality of semiconductor epitaxial layers being thicker on the first and second regions as compared to the corresponding semiconductor epitaxial layers on the third region, and a plurality of electrical contacts forming an anode and cathode on part of the first and second regions, respectively.
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公开(公告)号：US20200218117A1
公开(公告)日：2020-07-09
申请号：US16738682
申请日：2020-01-09
IPC分类号： G02F1/13357 , F21V8/00 , G06F1/16
摘要： A backlight for a display screen, an electronic device and a method of operating a backlight are described. A backlight includes a light guide, a lead frame, and at least one visible light-emitting diode (LED) and at least one infrared (IR) LED on the lead frame. The backlight includes at least one light entry face and a light exit face. The lead frame includes a first lead and a second lead isolated from each other. The at least one visible LED is optically coupled to one of the at least one light entry face and includes a counter electrode contacted by the first lead and an electrode contacted by the second lead. The at least one IR LED is optically coupled to one of the at least one entry face and includes a counter electrode contacted by the second lead and an electrode contacted by the first lead.
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公开(公告)号：US20200207261A1
公开(公告)日：2020-07-02
申请号：US16727709
申请日：2019-12-26
IPC分类号： B60Q1/50 , B60K35/00 , B60Q1/26 , H05B47/125
摘要： Systems, devices, and methods are disclosed in which one or more light sources, a detector, a processor and a controller are configured such that light from the one or more light sources can provide illumination or projections that can reduce accidents while the vehicle is in motion and when parked and may also provide information and illumination to the driver and vehicle occupants when entering or exiting the vehicle. These systems may, for example, provide spot illumination to moving objects or pedestrians on the road surface, with the spot illumination following the moving object. Alternatively or in addition these systems may project images on the ground, for example to communicate information to occupants of the vehicle, to occupants of another vehicle, or to pedestrians.
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公开(公告)号：US10677419B1
公开(公告)日：2020-06-09
申请号：US16533466
申请日：2019-08-06
申请人： Lumileds LLC
发明人： Mehdi Aas , Charles André Schrama
IPC分类号： F21V5/08 , F21V23/00 , F21Y115/10
摘要： An apparatus can include a lens that can shape light emerging from a light emitting diode (LED). The emergent light from the LED can be substantially centered around an LED axis. An incident surface of the lens can be positioned to face the LED. The incident surface can include a concave portion. The concave portion can be substantially smooth, so as not to substantially scatter light that strikes the concave portion. The concave portion can be substantially centered around a concave portion axis that is non-coaxial with the LED axis. The incident surface can include a scattering portion, positioned away from the concave portion, which can be textured so as to scatter light that strikes the scattering portion. An exiting surface of the lens can optionally include a generally planar portion that at least partially surrounds a substantially smooth convex portion.
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公开(公告)号：US10659668B2
公开(公告)日：2020-05-19
申请号：US16154044
申请日：2018-10-08
发明人： Xueqin Lin
摘要： An apparatus is disclosed including: a light source; a Fresnel lens, and a lens array. The Fresnel lens is disposed upstream from the light source to collimate light output by the light source. The lens array is disposed upstream from the Fresnel lens to mix collimated light that is output from the Fresnel lens. The lens array includes a plurality of optical elements arranged on a substrate. Each optical element includes a respective first planar surface arranged to face towards a different respective portion of the Fresnel lens and a second convex surface arranged to face away from the Fresnel lens.
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