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公开(公告)号：US11380730B2
公开(公告)日：2022-07-05
申请号：US16294446
申请日：2019-03-06
发明人： Florent Monestier , Casey Israel
IPC分类号： H01L27/15 , G09G3/32 , H01L33/62 , H01L27/146 , B60K35/00 , B60R1/00 , G09G3/00 , B60Q1/26 , B60Q1/50
摘要： 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.
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公开(公告)号：USD954665S1
公开(公告)日：2022-06-14
申请号：US29689976
申请日：2019-05-03
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公开(公告)号：US20210151642A1
公开(公告)日：2021-05-20
申请号：US17159528
申请日：2021-01-27
发明人： Peter Josef Schmidt , Oleg Borisovich Shchekin , Walter Mayr , Hans-Helmut Bechtel , Danielle Chamberlin , Regina Mueller-Mach , Gerd Mueller
IPC分类号： H01L33/50
摘要： In a method according to embodiments of the invention, for a predetermined amount of light produced by a light emitting diode and converted by a phosphor layer comprising a host material and a dopant, and for a predetermined maximum reduction in efficiency of the phosphor at increasing excitation density, a maximum dopant concentration of the phosphor layer is selected.
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公开(公告)号：US20210150743A1
公开(公告)日：2021-05-20
申请号：US16952768
申请日：2020-11-19
摘要： Multi-color flash with image post-processing that uses a camera device with a multi-color flash and implements post-processing to generate images is described. In one aspect, the multi-color flash with image post-processing may be implemented by a controller configured to control a camera and flashes of at least two different colors. The controller may be configured to cause the camera to acquire a first image of a scene while the scene is being illuminated with the first flash but not the second flash, then cause the camera to acquire a second image of the scene while the scene is being illuminated with the second flash but not the first flash, and generate a final image of the scene in post-processing based on a combination of the first image and the second image.
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公开(公告)号：US11003051B2
公开(公告)日：2021-05-11
申请号：US16071784
申请日：2017-01-16
摘要： A device includes a light-emitting device (LED) having at least two vertical light-emitting sides, and a ring-shaped light guide having a bottom side, a top side comprising a light-emitting surface, an inner sidewall, and an outer sidewall defining an indentation having at least two vertical in-coupling surfaces mated to the at least two vertical light-emitting sides of the LED.
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公开(公告)号：US10996450B2
公开(公告)日：2021-05-04
申请号：US16084457
申请日：2017-03-06
IPC分类号： G02B27/02 , G02B27/14 , G02B19/00 , F21S41/24 , F21S41/143 , F21S41/26 , F21S41/16 , F21S41/141 , F21V7/00
摘要： The invention relates to an optical device and to a headlighting assembly including an optical device. An optical device includes a body of a transparent material arranged to receive light at at least one light input portion. At least a portion of the light is reflected at an outer surface of the body due to total internal reflection. A non-transparent housing is provided to at least partially cover the body. The body is held within the housing by protrusions arranged to abut against the outer surface.
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公开(公告)号：US10955110B2
公开(公告)日：2021-03-23
申请号：US16709110
申请日：2019-12-10
IPC分类号： F21V5/04 , G02B27/30 , F21V5/00 , F21S41/25 , F21S41/143 , F21S41/151 , F21Y115/10 , F21V7/00
摘要： The disclosure describes a precollimator for a lighting device, including: a) a number of first collimator units each having an entry face and an exit plane, wherein for each first collimator unit the exit plane is wider than the entry face in a first direction and the entry face and the exit plane have the same width in a second direction that is perpendicular to the first direction and b) a second collimator unit having an entry plane and an exit face, wherein the exit face is wider than the entry plane in the second direction, and wherein the exit plane of each first collimator unit is optically connected to the entry plane of the second collimator unit, wherein the precollimator is joined together from at least two components. The disclosure further describes such lighting device and a method to manufacture such precollimator.
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公开(公告)号：US10952295B2
公开(公告)日：2021-03-16
申请号：US16457130
申请日：2019-06-28
摘要： Various embodiments include apparatuses and methods enabling a control apparatus for color tuning a light-emitting diode (LED) array. In one example, a controllable-lighting apparatus includes an LED array having at least one desaturated red LED, at least one desaturated green LED, and at least one desaturated blue LED. A number of color-tuning and luminous-flux control devices includes an adjustable correlated color temperature (CCT)-control device for setting a desired color temperature of the LED array, an adjustable Duv-control device for setting a desired overall color cast of the LED array along an isothermal CCT line corresponding to the desired color temperature, and an adjustable flux-control device for setting a desired luminous-flux value of the LED array. Other apparatuses and methods are described.
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公开(公告)号：US10930825B2
公开(公告)日：2021-02-23
申请号：US16232884
申请日：2018-12-26
发明人： Marcel Rene Bohmer , Jacques Heuts , Ken Shimizu , Peter Schmidt
IPC分类号： H01L33/50 , H01L25/075 , H01L33/60
摘要： A method of fabricating closely spaced pcLEDs arranged in a matrix array of perpendicular rows and columns comprises an initial phosphor deposition step in which phosphor is deposited at alternating locations (pixels) in the matrix array in a checkerboard pattern, so that the locations in the array at which phosphor is deposited are not adjacent to each other. In a subsequent phosphor deposition step phosphor is deposited at the alternating locations at which phosphor was not deposited in the first deposition step. In between the two phosphor deposition steps, reflective or scattering structures may be fabricated on sidewalls of the phosphor pixels to optically isolate pcLEDs in the resulting array from each other.
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公开(公告)号：US10892387B2
公开(公告)日：2021-01-12
申请号：US16228393
申请日：2018-12-20
IPC分类号： H01L33/58 , H01L27/15 , H01L33/50 , G02F1/01 , G02F1/163 , H01L25/075 , H01L51/52 , G02F1/015 , F21S41/141 , F21S41/40 , F21V14/00 , F21S41/64 , F21V23/00 , F21V23/02 , F21Y115/10
摘要： 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.
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