Uniform Light Distribution in Vehicle Headlights

Automobile lighting device with multiple light emitters arranged side by side that produces an arcuate light distribution. The device uses reflectors and emitters in each luminous body to generate distinct vertical light and dark boundaries in their partial light distributions. This allows the combined light distributions from multiple bodies to form the overall arcuate pattern with clear vertical edges. The emitters and reflectors are configured when assembled to achieve this. By designing the reflectors to accurately display vertical light and dark boundaries, it enables precise edge definition in the composite arcuate light distribution.

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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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Vehicle lamp design that can easily satisfy the light distribution characteristics of a beam pattern without separately manufacturing multiple micro-incidence lenses, multiple micro-emission lenses, collimators, etc. for each beam pattern. The lamp uses a modular approach with a light source, optical path adjustment, and transmission optics in each module. The modules are arranged to form the desired beam pattern. By adjusting the collimators in the path adjustment module, the lamp can achieve the desired light distribution without needing multiple custom lenses for each beam pattern.

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Outdoor lighting device for automobiles with low glare to provide efficient lighting without causing discomfort to the eyes of surrounding users. The device has a lamp housing with a frosted glass cover over the equipment box. Inside the box, frames slide vertically on rails with LED panels fixed between them. The frames in the middle have control panels. A double-headed screw connects the frames and slides. This allows the LED panels to move vertically and rotate slightly to adjust the light distribution. The frosted glass cover reduces glare. The device can also have photovoltaic panels on the roof to charge internally.

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Vehicle lamps with a specific arrangement of first and second LEDs to achieve a 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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Vehicular light guide member that provides uniform brightness across its exit surface when used in vehicle lamps. The light guide has a main body with an entrance for light to join and an exit for light to exit. The entrance has multiple specular surfaces that reflect the incoming light towards the exit. Some of the specular surfaces are displaced closer to the exit than others. This increases the reflected light towards areas that would be darker otherwise, creating a more uniform brightness on the exit surface.

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A lighting module for vehicle lighting devices with a highly homogeneous surface light output. The module uses an LED housed in a cavity with a transparent optical filter between the LED and the light-emitting surface. The filter reflects most of the LED light back into the cavity while allowing a small portion to pass through. A spatial optical structure scatters the reflected light back toward the cavity surfaces on the filter's lower surface facing the LED. This bouncing of light between the cavity and filter enhances mixing and homogenization before exiting the module's light-emitting surface.

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Vehicle lamp module that enables a single lamp to perform multiple lighting functions like low beam and high beam while having a common light output surface that can create a uniform design when the lamp is switched on. The module includes multiple light sources with different light distributions, a light guide lens, and an optic that directs light from some sources. The light guide has a recess to separate light output. Some light passes straight through for one distribution pattern, while another light reflects to form a different pattern. This allows the lamp to have dual functions with a single lens.

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This vehicle lamp employs a lens array to improve the uniformity of the optical pattern of light projected on the road. The lens array is divided into regions, with each region having a different lens focal length. This allows for optimizing the lens design for each region based on its distance from the vehicle and projecting angle.

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Motor vehicle floodlight with adjustable low beam modules to allow precise alignment of the light distribution without needing to position multiple identical modules with high precision. Each low beam module has an adjustable reflector that can be rotated around a fixed point. The fixed point coincides with or is on the focal line of the reflector. This allows the module's light distribution to be independently adjusted without needing to precisely align multiple identical modules.

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Vehicle lamp with an adjustable rotating reflector to improve light distribution and reduce glare. The rotating reflector twists so that inner LEDs emit lower than outer LEDs to form a desired light pattern. This compensates for the non-flat reflecting surface. The LED vertical positions are adjusted to account for the distortion caused by the twisting reflector. This prevents overlapping light patterns and ensures a uniform shape. The connecting parts between blades are textured to prevent glare reflection.

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A vehicle headlamp design with multiple separated optical modules and a mixing lens to enable flexible lamp shape without compromising uniformity. The headlamp has multiple spaced optical modules emitting light. A mixing lens in front blends the separate beams into a uniform surface light source. This allows arranging the modules freely without restrictions based on lamp shape. The mixing lens compensates for inter-module spacing to provide a uniform overall light output.

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This is an illuminated device for vehicles that generate uniform light distribution over a transition between two light sources with different resolutions. The device has a first light unit with low resolution and a second light unit with higher resolution. The light sources are controlled to reduce intensity and resolution gradients in the transition region between them. The second light source can have multiple pixels per unit area compared to the first source.

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Indirect vision device for vehicles like rear-view mirrors that integrate lighting devices for indicators or decorative lights with improved homogeneous luminance. The lighting is achieved using a light guide with embedded scattering particles. Light emitted from the source is guided along the light guide and scattered out through its side surface. The scattering particles cause the light to exit uniformly along the guide rather than just at the ends. The light guide is positioned above a reflective back housing so the scattered light reflects back and further enhances luminance.

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A lighting module for an automotive headlight that improves the light distribution and efficiency compared to conventional headlights with a single reflector. The module has two separate reflectors, each with its own focus point. One reflector focuses the light from one LED, and the other reflector focuses the light from a second LED. This allows the two LEDs to be separately positioned for better overall light distribution rather than compromising with symmetric placement. An optional optical element can further shape the combined light output.

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Spotlight with improved uniformity and edge sharpness by selectively diffusing the central collimated light from the collimator lens and transmitting the peripheral collimated light without diffusion. This prevents uniformity issues caused by source shape projection and color nonuniformity from source differences. It also prevents edge blurring by selective diffusion of the central light versus transmitting the peripheral light without diffusion. The selective diffusion is done using a diffusion lens with inner and outer sections that diffuse the central light and transmit the peripheral light, respectively.

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Efficient motor vehicle lighting system using scattering reflectors and transparent faceted bodies to generate planar light distributions from fewer light sources. The system has a lighting device with one or more light sources, scattering reflectors, and faceted transparent bodies. Light from the sources is scattered by the reflectors and refracted by the facets to create a planar light distribution. This allows using fewer light sources to produce the same illumination compared to direct emission. The faceted transparent bodies hide the light sources from view, preventing glare. The scattering reflectors can each be associated with a source to further reduce visibility of individual sources. The lighting device can operate in multiple modes with different colors from separate light groups. The scattering reflectors, transparent bodies, and lighting device are housed in a common transparent module for flexible installation.

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Vehicle lamp unit with adjustable cutoff and dual light distribution patterns. The lamp has separate first and second light sources, lenses, and reflectors. The first lens forms the low beam pattern with a cutoff line. The second lens and reflector add to the first lens and extend the incident light. The second reflectors split and redirect the second reflected light to form an upper and lower area. This allows independent control of the second light distribution pattern. The lower area adds below the cutoff line for the combined pattern, while the upper area adds above the cutoff line for a second pattern without it. This enables precise adjustment of both beams with separate cutoffs.

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A reflective lighting device for vehicle lamps that provides uniform illumination without hotspots and is suitable for narrow, long lamps like those found in streamlined car designs. The device uses a unique reflector shape and placement to concentrate the light from the source and project a uniform beam through the lens without creating circular hotspots behind the lens. The reflector has a two-part shape with a first section near the light source that focuses the light and a second section further away that spreads it. This avoids the hotspot issue where the light source is behind the lens and the concentrated light creates a bright circle. The reflector is positioned with the first section near the lens and the second section further away to spread the concentrated light and avoid hotspots. The device can be used in vehicle lamps with narrow, long light shapes.

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A v-shaped lighting device for vehicles that provides homogenous lateral lighting without hotspots. The device has a v-shaped lens angled towards the main reflection direction of the reflectors. This allows light to be scattered laterally by a diffuser separator wall between the reflectors. The diffuser encloses an acute angle with the lens surface for homogenous lateral radiation. The v-shape and diffuser geometry enable uniform light distribution to the main reflection in transverse directions.

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