Pixelated Light Module Optical Segmentation for Vehicle Lighting
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Solution Overview
Problem
Current motor vehicle lighting and signalling systems struggle to integrate high-resolution, pixelated light beams effectively with regulatory lighting functions, particularly in low and high beam configurations, while also failing to provide optimal illumination distribution and flexibility for displaying pictograms.
Innovation Solution
A light module with a pixelated and digital imaging system, incorporating an optical device that processes light rays to produce distinct spatial distributions, allowing for a single light source to generate both high and low beams with enhanced illumination zones, including a zone of maximum light concentration, and the ability to project pictograms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single light source is used with a pixelated system, then device complexity is reduced, but illumination distribution uniformity deteriorates
Solution Approach 1:
The patent segments the illumination function by introducing an optical device with multiple portions (first portion and second portion) that process different parts of light rays differently. The first portion produces a first spatial distribution while the second portion produces a second spatial distribution, allowing a single light source to achieve uniform illumination across the impact surface by combining multiple optical processing paths.
Solution Approach 2:
The optical device applies different optical processing to different regions of light rays. The first portion and second portion are configured to optically process different parts of light rays originating from the light source, creating different spatial distributions that collectively achieve uniform illumination across the entire impact surface.
2Adaptability or versatility
If conventional lighting systems are used, then regulatory lighting functions are met, but adaptability for pixelated beam projection deteriorates
Solution Approach 1:
The patent creates a multi-functional lighting system where a single light source combined with the optical device and pixelated system can perform multiple functions: producing regulatory-compliant illumination patterns (low beam, high beam, fog light, town light) and projecting pixelated beams for pictogram display. The optical device enables both conventional lighting functions and advanced pixelated projection from one integrated system.
3Illumination intensity
If light concentration is increased in specific zones, then illumination intensity in those zones improves, but homogeneity across the entire beam deteriorates
Solution Approach 1:
The optical device segments the light processing into multiple portions, where the first portion and second portion create different spatial distributions. This segmentation allows specific zones to receive concentrated light while other areas maintain appropriate illumination levels, achieving both localized intensity enhancement and overall homogeneity through the combination of multiple optical paths.
Solution Approach 2:
The patent applies local quality by configuring different portions of the optical device to process different parts of light rays differently. The first portion and second portion create different spatial distributions tailored to specific regions, allowing optimized illumination intensity in specific zones while maintaining appropriate homogeneity across the entire impact surface.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables the creation of a pixelated beam that supplements existing beams, providing optimal illumination distribution and flexibility, with increased light concentration in specific zones while maintaining homogeneity, effectively addressing the limitations of current systems.
Implementation Method 1
an optical device that is interposed, following the path of the light rays originating from the light source, between the light source and the pixelated and digital imaging system so as to transmit at least part of the light rays originating from the light source to an impact surface of the pixelated and digital imaging surface
Implementation Method 2
the first portion is configured to produce a first output beam having a first spatial distribution of light on the impact surface
Implementation Method 3
the second portion is configured to produce a second output beam having a second spatial distribution of light, different from the first distribution, on the impact surface
Data Source
AI summary
A light module for a motor vehicle configured to produce an output beam, including a light source, a pixelated and digital imaging system, and an optical device that is interposed between the light source and the pixelated and digital imaging system so as to transmit at least part of the light rays originating from the light source to an impact surface of the pixelated and digital imaging surface. The optical device includes a first portion configured to process a first part of the light rays originating from the light source and a second portion configured to process a second part of the light rays originating from the light source. The first portion is configured to produce a first output beam having a first distribution of light on the impact surface and the second portion is configured to produce a second output beam having a second distribution of light on the impact surface.