Light Distribution in Automotive Headlights

Improving visibility during adaptive driving beam (ADB) headlight operation by optimizing luminance transition between high and low beams when dimming around oncoming vehicles. The method involves setting a dimming range within the high beam coverage based on object positions, with lower luminance in a partial range near a virtual reference line. This prevents excessive high beam glare when dimming. If just low beams are on, lower luminance is set in the partial range.

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Vehicle headlight system that adaptively controls the light distribution patterns of multiple headlights based on surrounding objects in the camera view. The system has two headlights capable of forming variable intensity patterns. It adjusts the patterns for three scenarios: 1) outside objects, where it sets both lights to high intensity, 2) forward vehicles, where it sets both lights to low intensity shading, 3) specific targets, where it sets one light to fixed low intensity and the other to adjustable low intensity to match the target luminance. This balances glare reduction and visibility improvement.

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Optimizing headlight distribution for vehicles to balance dimming targets like oncoming vehicles and curves while avoiding glare. The system uses a behavior prediction and target acquisition to adapt the headlight pattern. If the own vehicle's behavior has low lateral movement, it emits full light on the dimming target. If the own vehicle's behavior has high lateral movement, it dims the target area differently. This prevents glare for preceding vehicles or oncoming vehicles when the own vehicle enters curves before them. The adaptation balances preventing glare and dimming targets.

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A light distribution control method and device for vehicle headlamps that mitigates discomfort and improves visibility for the driver when detecting oncoming vehicles with cameras. The method involves using camera images to generate light distribution patterns for the adaptive headlamps. When a camera detects a light spot from an oncoming vehicle, it generates a light shielding pattern for the headlamps to block that spot. If the camera doesn't see the light spot, no shielding is used. This prevents flickering and switching between light and dark areas when the camera detection is uncertain. By consistently shielding the detected light spot, it reduces discomfort and glare for the driver.

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A vehicle headlamp that smoothly transitions the light distribution pattern as the boundary between light and dark areas changes, reducing discomfort compared to sudden changes. The headlamp uses a matrix of individually controllable light emitting parts. The illuminance at each point is determined based on the adjacent brightness levels. As the boundary moves, the light levels smoothly fade between bright and dark areas. The total light output decreases as more points overlap the dark area. This gradual transition avoids abrupt changes in the light distribution pattern as the boundary shifts.

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Vehicle lighting system that improves visibility of pedestrians at night and in rainy conditions. It uses adaptive lighting with changing patterns in the low beam and side pattern lights based on environmental data. A device senses moisture around the vehicle and the lighting control adjusts the low beam intensity lower and side pattern light intensity higher in wet conditions. This balances illumination for driver visibility without over-illuminating pedestrians on the side.

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Vehicle headlight system that improves light utilization and reduces safety issues compared to traditional high/low beam systems. The system has a single adjustable light source for both high and low beams. When switching to low beam, the source angle is adjusted to project a low beam pattern. For high beam, the angle is adjusted to raise the light pattern vertically. This avoids wasting light when switching beams and keeps the low beam brightness high. The system also expands light coverage and brightness through adjustable light sources and projections.

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Vehicle lighting system that improves uniformity and flexibility of light distribution compared to single modules. The system uses arrays of identical and different type lighting modules arranged on the vehicle front face. The modules have different light distributions. By splicing and combining modules of different types, customized illumination patterns can be formed. This allows flexible control over the range and shape of the light distribution. The modules of the same type have identical distributions, which improves uniformity compared to single modules directly reaching the brightness.

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Intelligent adjustment of vehicle high beam lights to improve safety and convenience by automatically switching between high and low beams based on environment and vehicle conditions. The system uses sensors like cameras, radar, and light sensors to detect objects and conditions ahead. A control mechanism adjusts the position of the high and low beam lamps inside the headlamp housing. This allows the high beams to be aimed correctly without dazzling oncoming traffic or obscuring near objects. The intelligent adjustment system analyzes real-time vehicle and road data to switch between high and low beams optimally.

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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 headlamp with improved illumination when one lamp fails. The headlamp has two lamps on the left and right sides of the vehicle. If light intensity decreases in a region of one lamp due to a failure, the control system adjusts the other lamp to compensate. It brings the brightest region of the other lamp closer to the failed region. This prevents darkness in that area and maintains forward visibility. The compensation can be achieved by swiveling, leveling, or intensity adjustment of the other lamp, or derating the failed lamp's source.

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Vehicle headlamp design that improves visibility when turning by preventing dark spots on the turn side. The headlamp has separate right and left side lamps that contribute to the high beam pattern. The intensities of the overlapping areas between the right and left patterns are balanced to prevent valleys in the combined pattern. This prevents dark spots on the turn side when steering angles are large. The center of the combined pattern becomes brighter than the turn sides, making it easier to see where the vehicle is turning.

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Vehicle lamp system with multi-color light sources that can improve visibility in bad weather conditions. The lamp has at least two light sources that project different colored lights. The light sources are aimed such that the different colored lights partially or fully overlap at the projection target. This can create a composite light of mixed colors that can enhance visibility in conditions like fog, rain, or snow compared to single-color LED lamps.

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This vehicle lamp uses a specific arrangement of first and second LEDs to achieve the desired luminance distribution pattern. The lamp has one central LED surrounded by four outer LEDs on a substrate. The luminance from these LEDs is arranged to have a central high-intensity region surrounded by progressively lower-intensity regions. This provides a balanced and uniform overall luminance distribution. The lamp achieves this using specific LED positions, sizes, and intensities.

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Vehicle lamps are capable of dynamically changing their light distribution pattern to create different lamp images. The lamp has multiple light source modules that form different light patterns. A movement mechanism moves one light source module while another rotates to vary the light distribution. This dynamically converts the overall light pattern to create various designs.

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Smoothly transitioning between different light functions for adaptive vehicle headlights that use segmented LED matrices. The headlights are controlled by selecting and superimposing pre-stored data sets specifying segment intensities for different light distributions. A smoothing function limits changes to avoid sudden transitions exceeding a maximum rate. This allows seamless switching between light distributions like dipped and full beams without requiring complex real-time calculations.

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Front lighting system for vehicles that provides improved high and low beams without dark areas between them. The system uses two separate light sources for high and low beams. A transparent shutter with carved slits redirects and concentrates light from the high-beam source. This allows for the use of large high-beam sources while avoiding shadows. The transparent shutter also has surfaces to control output distribution. The shutter is placed in focal planes of primary and secondary optics for efficient beam shaping.

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This is a vehicle headlight system with improved resolution and lower electronic complexity. The system uses two headlamps with light modules containing matrix arrangements of light pixels. Each module generates a light distribution by radiating light from individual pixels. This provides higher resolution without increasing the LED count. It also allows precise shaping of beam patterns. By splitting the beam generation between two lamps, the complexity and heat are reduced compared to one lamp.

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A light-guiding component that can enable multi-function vehicle lights using a single light source. The component has two light incidence areas facing different directions that receive light from separate sources. The light is guided by internal reflections to a shared exit surface area. This reduces the light guide's thickness compared to collinear light entry and exit areas.

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An optical system for multidirectional light propagation and control uses two colored layers placed between cavities to control the transmission, reflection, absorption, and direction of light within and through the cavities.

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