Light Module System for Dimmable Floor Projection
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Solution Overview
Problem
Motor vehicle headlights face challenges in maintaining sufficient contrast and minimum brightness for optically represented information in dimmed light distributions, particularly in edge areas, which can impair the visibility of symbols projected onto the roadway.
Innovation Solution
A light module system comprising a high-resolution second light module that generates a floor projection light distribution, causing the first non-high-resolution light module to dim the entire light distribution while ensuring the minimum brightness is maintained in specific areas by illuminating them when necessary, thereby supporting the dimmable low beam distribution and optimizing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the first light module dims the entire light distribution to optimize energy consumption, then energy efficiency is improved, but the visibility of symbols and information projection may be impaired
Solution Approach 1:
The patent applies partial action by having the first light module dim only to the extent necessary to improve contrast, while the second light module provides supplemental high-resolution illumination in specific areas. This partial action approach optimizes energy consumption by reducing overall illumination while maintaining sufficient visibility through targeted high-resolution lighting where it is most needed for symbol projection.
Solution Approach 2:
The system changes the brightness parameter dynamically by controlling the dimming level of the first light module based on operational conditions. When high-visibility requirements exist, the first module maintains higher brightness; when contrast optimization is prioritized, it dims while the second module compensates in critical areas, thus optimizing energy consumption while maintaining visibility.
2Illumination intensity
If high-resolution illumination is provided in all areas to maintain visibility during dimming, then visibility is maintained, but energy consumption increases
Solution Approach 1:
The patent applies local quality by having the second high-resolution light module illuminate only specific predetermined areas rather than the entire light distribution. This localized high-resolution illumination maintains visibility in critical areas during dimming while avoiding the energy consumption that would result from illuminating all areas with high resolution.
Solution Approach 2:
The system applies partial action by activating the second light module only in specific areas and only when the first module is dimmed, rather than continuously illuminating all areas. This partial action maintains visibility where needed while significantly reducing overall energy consumption compared to full-area high-resolution illumination.
Data Source
Figure 1~2
AI summary
A light module system comprises a first light module and a second light module, wherein the first light module is controllable on the basis of the second light module, wherein the first light module is embodied as a non-high-resolution light module and configured to generate a first type (1, 10) of light distribution in a region in front of the light module system, wherein the first type (1, 10) of light distribution is dimmable, the second light module is embodied as a high-resolution light module, wherein part (4) of the first type of light distribution has assigned a minimum brightness and the second light module is configured to generate at least one floor projection light distribution (3) in one mode of operation, the at least one floor projection light distribution (3) being an optical representation of information, and, in the process, to prompt the first light module to at least partly dim the first type of light distribution, and to illuminate the part (4) of the first type of light distribution.