Miniature Lighting for Automotive Applications

Adaptive high and low beam matrix car lighting system using miniLED arrays that provides improved visibility and safety for night driving. The system has a miniLED array instead of traditional headlight sources. It dynamically adjusts the beam pattern based on surroundings using sensors. A heat dissipation system prevents overheating. The miniLED array is integrated on a circuit board with a heat sink, fan, and temperature control. The system optimizes heat dissipation, stabilizes the miniLEDs, and reduces brightness if they overheat.

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Vehicle lighting control system that allows individual control of each LED light in a vehicle's lighting array. The system uses a two-stage power supply circuit with a boost chip followed by a matrix chip to provide adjustable voltage and current to each LED. This allows precise dimming and brightness control of individual lights. The system also integrates communication interfaces like CAN, SPI, and NTC to provide diagnostics, temperature monitoring, and fault detection.

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Lamp module and vehicle lamp design that allows slim lamp profiles while maintaining optimal beam patterns . The lamp module has a light guide unit with a stepped portion that obstructs some light from reaching the emitting area. This creates a cutoff edge at the correct position to form the beam pattern. The stepped portion aligns with the rear focal plane of the emitting area. Multiple modules can be arranged to create different beam regions like spot and spread.

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A slim vehicle lamp design that improves the aesthetics of vehicle lamps while maintaining optimal beam patterns. The lamp has multiple light source modules arranged in the width of the vehicle. Each module has a reflector to direct light forward. A shield obstructs some light from each reflector as it travels towards the lens. The lens is integrated and aligned with the modules. This allows slimmer lamp dimensions by hiding some of the light reshaping inside the module instead of the lens. The shielded light is reshaped by the lens grid to form the desired beam patterns.

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A simplified headlight optical element design that integrates multiple functions into a compact unit to enable smaller, lower cost matrix LED headlights without compromising performance. The optical element has a curved surface design with light incident and emergent portions that connect to a light transmitting portion. The element can be mounted in a headlight module with light sources. The small size and integrated optics simplify manufacturing and allow individual LED control for glare-free adaptive driving beam capabilities.

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Managing color output from automotive lighting devices using digital LED arrays to provide consistent color performance over temperature ranges. The technique involves controlling the current supplied to the LEDs to adjust brightness while maintaining color accuracy. The LEDs are arranged in a matrix configuration to allow selective activation of individual pixels. By varying the current to each pixel, the overall light pattern can be adjusted in brightness without affecting color. This allows temperature compensation without derating the LEDs and maintaining color accuracy.

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Displays and lighting devices for augmented reality and automotive applications with improved resolution, contrast, and directionality for applications like head-up displays, virtual retinal displays, and AR glasses. The displays use micro-LED arrays with sub-pixel sizes as small as 1 micron, which allows high-resolution and density displays. The micro-LEDs have optimized light extraction, collimation, and color conversion to reduce crosstalk between pixels. The displays also use techniques like fly-eye lenses, flip-chip assembly, and pulse width modulation to improve performance.

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A lamp for vehicles that uses micro LED chips to improve light output efficiency while maintaining visibility and signal notifications. The lamp has a parabolic array module with micro LED chips arranged in a curved shape to prevent field curvature aberration. This avoids non-uniform light distribution and dark corners. The curved array module is placed inside a lens system to shape and focus the light. By locating the array module center within or near the lens system, it allows the lens to induce waveform changes without aberrations. This improves overall light output and uniformity from the curved array compared to a flat array.

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Vehicle lamp assembly with adjustable illumination using micro-mirror arrays to replace conventional mechanical dimming mechanisms. The lamp has a light source, a light reflecting unit with adjustable micro-mirrors, and a control unit. The micro-mirrors can be individually turned on/off to selectively reflect light from the source, allowing adjustment of the illumination pattern and range without moving parts.

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A vehicle lighting system that provides precise control of light direction and light-emitting area for improved accuracy, lower cost, and ease of control compared to mechanical systems. The system uses individual LED pixels in the lamps that can be selectively turned on based on vehicle state. A controller communicates with the lamps to determine which pixels to activate based on factors like road width, slope, and turning. This allows tailored lighting patterns optimized for the vehicle's specific circumstances instead of fixed mechanical aiming.

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Compact LED module for vehicles that integrates the LEDs, driver, and control circuitry into a single housing. The LEDs and control electronics are arranged in one piece inside the housing. This compact design allows mounting LEDs with reliable performance in tight spaces, like vehicle interiors, where external components aren't needed. The integrated LED module simplifies wiring and reduces heat issues compared to separate components.

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Small high-brightness LED sources for applications like displays where size and efficiency are critical. The LEDs have a base area less than 300 μm² but still emit sufficient light for applications like displays. This is achieved by using vertical LED structure, higher electrical resistance materials, and optimizing the electrode layout to maximize active area utilization. The LEDs have high surface brightness, high wallplug efficiency, and compact size.

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Adaptive lighting system for vehicles that adjusts the brightness of the headlights based on distance to improve visibility and prevent glare. The system has multiple dimmable LED elements in the headlights that can each emit a distinct cone of light. The brightness of each LED is adjusted based on the distance to the object it illuminates. This allows objects at different distances to have consistent perceived brightness. The system determines distances using sensors or maps, then interpolates between measurement points. This adaptive lighting improves visibility compared to fixed beam patterns.

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A simplified vehicle headlight design with integrated adaptive lighting functionality that reduces size and weight compared to conventional headlights. The headlight has a single unit with combined actuators and control circuits for light distribution, pivoting, and height adjustment. This allows simplifying the headlight structure by avoiding separate components for each function. The adaptive lighting controller coordinates the integrated actuators to provide adaptive lighting capabilities without requiring separate motors and circuits for each control mode.

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Multi-faceted LED headlight with multiple color temperatures for vehicles that provides brightness, concentration, and color temperature versatility. The headlight has a multi-sided lamp body with multiple LED groups on each side. At least two groups have different color temperatures. A microprocessor controls the LEDs via a CAN bus. A fan cools the LEDs. This allows custom color selection and better cooling compared to single-color LEDs.

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Lamp control device for vehicles that improves light uniformity and enables smooth control of light distribution using overlapping LED regions. The lamp has multiple individual LEDs that emit light to different areas. Instead of precisely matching boundary lines between LEDs, the device overlaps some LED regions laterally. This smoothens the overall light distribution pattern. The LEDs are controlled on/off to shape the pattern. A detection unit can provide road, vehicle, or pedestrian data to further refine the light distribution.

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Automatic adjustment of automobile headlights using an LED-based system that provides optimal lighting for different conditions. The system uses a combination of reflected and direct LED light. It has multiple LED sheets on outer and inner spherical brackets. A PLC controls the LED positions and intensity based on switch and sensor inputs. This allows automated adjustment of headlight beam pattern and brightness for optimal lighting.

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Pixel-based vehicle lighting with improved resolution and reduced flicker. The method involves combining multiple pixel-level LEDs into larger controllable units, called light source units. These units are activated together but each LED within the unit can have an independently set brightness level. This allows finer resolution and smoother transitions compared to activating and adjusting each individual pixel. The light source units can be formed by grouping adjacent pixels.

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Adaptive LED headlight with intelligent far and near light following, compensation, and color temperature control. The headlight uses an array of independent LED modules that can be selectively activated to provide different beam patterns for straight and turning scenarios. It also has a compensation system for acceleration/deceleration, load, and terrain, and a color temperature adjustment for fog lights. This modular, adaptive design improves road illumination by optimizing beam shapes and colors based on driving conditions.

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Method for operating a motor vehicle lighting device using LEDs to improve illumination from LED lighting modules in vehicles. The method involves directing some of the LED light beams that are not emitted directly onto the reflector towards areas of the reflector that would not be adequately illuminated without the additional optical element. This involves positioning the circuit board with the LEDs shorter than the reflector length in the longitudinal direction. Areas of the reflector outside the board are illuminated by the additional optical element directing light from the LEDs that would otherwise miss.

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