Abstract: An illumination arrangement in a mobile device is provided that uses an artificial neural network (ANN) to correct an image of a scene. The mobile device has an illumination apparatus with an LED array that emits light to illuminate a scene. The LED array has LEDs, separated by borders, that are independently driven. A camera has a sensor to capture an image of the scene. The ANN has a training mode in which the ANN is trained using a set of images captured by the camera to generate parameters. The ANN is trained offline in a cloud network. A processor uses the trained ANN in an inference mode to correct the image.

Abstract: A lighting system for a vehicle is described, which includes a first hybridized device, a second hybridized device and a controller. The first hybridized device includes a first array of light emitting devices that illuminate a roadway on which the vehicle is located when operating. The second hybridized device includes a second array of light emitting devices that illuminate the roadway on which the vehicle is located when operating. The controller is electrically coupled to the first and second hybridized devices. When operating, the controller causes the first hybridized device to selectively project a first patterned light on to an object on the roadway, causes the first hybridized device to selectively project a second patterned light on to the object on the roadway, and causes a first camera to capture an image of the first patterned light projected on the object and the second patterned light projected on the object.

Abstract: An LED lighting strip, method of manufacturing an LED lighting strip and an automotive lighting system are described. The LED lighting strip (100) includes at least two outer wires (12, 14), at least one central wire (15) between the two outer wires, LEDs (22) arranged along the LED lighting strip and electrically coupled at least to the at least two outer wires (12, 14), and an enclosing member (52) enclosing the at least two outer wires, the at one central wire and the LEDs. The at least two outer wires (12, 14) and the least one central wire (15) have a bend (51) in sections between at least some adjacent LEDs (22).

Abstract: An optical system is provided. The optical system includes a light emitting diode that generates light emissions. The optical system includes a collimator that receives the light emissions and that generates a collimated beam. The optical system includes an etendue re-shaper that splits the collimated beam into beam parts and that arranges the beam parts adjacent to each other to generate an adjacent beam part arrangement. The optical system includes micro-lens arrays that receive the adjacent beam part arrangement and that generate beams. Each of the beams includes an optimum optical efficiency or a far field intensity distribution.

Abstract: A projection system can include a housing. A controller can receive a video signal and, in response to the video signal, produce a light-emitting diode (LED) array-controlling signal and a modulation panel-controlling signal. An LED array disposed in the housing can include LEDs that are configured to produce LED light having corresponding time-varying intensities in response to the LED array-controlling signal. A modulation panel disposed in the housing can have a plurality of pixels that are configured to modulate corresponding portions of the LED light in response to the modulation panel-controlling signal to form intensity-modulated light. A lens disposed in or on the housing can project the intensity-modulated light out of the housing to form a video image that corresponds to the video signal. The video image can be located away from the housing.

Abstract: This specification discloses pcLEDs in which the wavelength converting structure comprises one or more layers of phosphor particles disposed on a transparent substrate at high packing density. The particles are coated with an inorganic non-absorbing layer which mechanically stabilizes the phosphor particle layers and provides a thermally conductive connection between the phosphor particles. The wavelength converting structure is attached to a semiconductor LED die with the transparent substrate of the wavelength converting structure facing away from the die by a thin glue layer that bonds a light emitting surface of the die to the phosphor particle layers. Methods for fabricating such pcLEDs are also disclosed.

Abstract: 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.

Abstract: An illumination system and method can provide illumination at a specified color point. A first lens can project first light, from a first light-emitting diode (LED) array of first LEDs, corresponding to a specified illumination pattern and having a first color point, onto a scene to form first illumination regions at the scene that correspond to the first LEDs. A second lens can project second light, from a second LED array of second LEDs, having a second color point, onto the scene to form second illumination regions at the scene that at least partially overlap with corresponding first illumination regions at the scene. The first illumination can combine with the second illumination at the scene to form combined illumination that corresponds to the specified illumination pattern. The combined illumination can have a specified color point, such as between the first color point and the second color point.

Abstract: A vehicular display that contains a sparse array of light-emitting diodes (LEDs), system, and method of fabrication are disclosed. The vehicular display includes at least one tile disposed in a vehicle to provide a display of internal and external information. Each tile has a transparent flexible substrate, a sparse array of LEDs disposed on the transparent flexible substrate, a rigid substrate adhered to the transparent flexible substrate via an adhesive layer in which the sparse array of LEDs is encapsulated, and a driver disposed on an edge of the tile and configured to drive the LEDs. The LEDs are sparse enough to enable information to be displayed through a vehicle window while still enabling a viewer to see through the window.

Abstract: An LED module for a vehicle headlight and a vehicle headlight are described. The LED module includes an array of LEDs (22) and an optic (23) opposite the array of LEDs (22). The optic (23) is configured to receive light from the array of LEDs (22) and direct at least part of the received light. The optic (23) has a light passing area (24) configured to pass light directly from the array of LEDs.

Abstract: Optical filters are used to compensate for changes in LED and pcLED performance resulting from technological advances in device design or manufacturing, with for example the filtered optical output from later generation devices matching or substantially matching the optical performance of earlier generation legacy devices. This can allow the advanced generation devices to be substituted in applications previously supported by the legacy devices, even if the optical performance of the unfiltered advanced generation devices does not satisfy the optical performance specifications required by the application. Somewhat paradoxically, the advantages of using the filters in combination with the advanced generation devices may arise from the filters making the optical performance of the devices worse according to one or more figures of merit.

Abstract: A method for producing a photoemitting or photoreceiving diode includes producing, on a first substrate, first and second semiconductor layers with opposite dopings, and a third intrinsic semiconductor layer; etching trenches surrounding remaining portions of the second and third layers and of a first part of the first layer; and producing, in the trenches, a dielectric spacer covering side walls of said remaining portions. The method also includes etching to extend the trenches as far as the first substrate; laterally etching a part of the dielectric spacer, exposing contact surfaces of the second part of the first layer; and producing, in the trenches, a first electrode in contact with the contact surfaces of the second part of the first layer and with lateral flanks of the second part of the first layer.

Abstract: An LED structure includes an epi layer grown on a substrate and a plurality of dielectric nanoantennas positioned within the epi layer. The dielectric antennas can be periodically arranged to reduce reabsorption of light and redirect oblique incident light to improve overall light coupling efficiency. Each of the dielectric nanoantennas can have a top, a bottom, a height less than 1000 nm and greater than 200 nm and a diameter less than 2000 nm and greater than 300 nm.

Abstract: An optical coupler is described herein. The optical coupler includes at least one optical coupler unit. The at least one optical coupler includes an optical coupler entrance face and an optical coupler exit face. The optical coupler entrance face is configured to face, and receive light emitted by, at least one LED during operation. The optical coupler exit face is shaped as a Fresnel lens with a focal point at or behind a light emitting area of the at least one LED and is configured to face a lightguide entrance face of a slab lightguide. The optical coupler exit face has dimensions that match at least a part of the lightguide entrance face. The optical coupler entrance and exit faces are configured to refract light emitted by the at least one LED during operation.

Abstract: Various embodiments include apparatuses and methods enabling a wireless control apparatus for an LED array. In one example, a control apparatus includes a wireless module to receive a signal from a wireless control-device. The wireless signal may include signals related to a desired CCT value and a Duv value. A control unit is coupled to the wireless module to translate signals received from the wireless module. The control unit is also coupled to the LED array and to an LED driver. The control unit receive powers for the LED array from the LED driver and provides the power to the LED array in a manner based on the translated signals. A dimmer emulator is coupled to the control unit to provide one or more control signals to the LED driver. Other apparatuses and methods are described.

Abstract: Light-emitting devices are described herein. A device includes a hybridized device having a top surface and a bottom surface and a packaging substrate comprising a metal inlay in an opening on a top surface of the packaging substrate. The metal inlay is thermally coupled to the bottom surface of the hybridized device. The device also includes conductive contacts on the top surface of the packaging substrate and conductive connectors electrically coupled between the top surface of the hybridized device and the top surface of the packaging substrate.

Abstract: A sensor can sense time-varying ambient light that is present in a scene to produce an ambient light signal. A processor can determine an ambient light frequency and an ambient light phase of the ambient light signal. Light-emitting diodes (LEDs) of an LED array can be electrically powered with pulse-width modulation (PWM) electrical signals having a same amplitude to produce illumination. Each LED can illuminate a respective region of the scene. Each PWM electrical signal can have a respective duty cycle that corresponds to a specified illumination intensity in a respective region of the scene. The PWM electrical signals can have a same PWM frequency that is an integral multiple of the ambient light frequency. Each PWM electrical signal can have a respective PWM phase that is synchronized to the ambient light phase. A lens can direct the illumination toward the scene to illuminate the scene.

Abstract: A self-centering ring for an LED retrofit lamp, an LED retrofit lamp, and a vehicle headlight are described. The lamp includes a ring-shaped body that includes an outer ring and an opening in a central region of the ring-shaped body that receives the LED retrofit lamp.

Abstract: A family of optionally substituted oxonitridoberyllosilicate photoluminescent compositions (i.e., phosphors) is characterized by the formula AE1?x?y?uAy+uBe1?y?z?vBy+z+vSi1?z AlzO1?vN2+v: Eux,Ceu, where AE=Ba, Sr, Ca, Mg; A=Li, Na, K, Rb; 0?x?0.1; 0? u?0.1; 0<(x+u); 0?y?1; 0?z?1; (y+z+v)?1; and (x+y+u)?1. These phosphors may be used in phosphor converted LEDs which may be advantageously employed in illumination and display applications, for example.

Abstract: A light emitting device comprises at least two semiconductor LEDs arranged in an array with each semiconductor LED comprising a light emitting surface with boundaries defined by a perimeter, a continuous layer comprising a first surface through which light is emitted from the light emitting device during operation and an oppositely positioned second surface disposed on or adjacent to the array and extending over the light emitting surfaces of the semiconductor LEDs, and a plurality of optical isolation structures arranged in the continuous layer in a discontinuous manner along the perimeters of the light emitting surfaces between adjacent LEDs in the array.