Vehicle Headlight Pixel Layout for Vertical Light Pattern Overlap
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Solution Overview
Problem
Existing headlight systems for vehicles suffer from overlap issues and distortion when projecting light patterns onto surfaces, leading to visible separation edges and dark regions, which affect the clarity and effectiveness of illumination.
Innovation Solution
The headlight device employs two pixel light sources arranged vertically, with one light pattern positioned above the other, allowing for independent control and configuration to optimize illumination, including overlapping regions, to achieve a more effective and aesthetically pleasing light distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If light patterns are projected horizontally from both headlights, then the illumination area is maximized, but overlap issues and distortion occur leading to visible separation edges and dark regions
Solution Approach 1:
The patent transitions from horizontal light pattern projection to vertical projection. The first light pattern is projected upward at an angle between 30-60 degrees from the horizontal plane, while the second light pattern is projected downward at a corresponding angle, thereby eliminating horizontal overlap and distortion issues while maintaining comprehensive illumination coverage.
2Device complexity
If traditional horizontal light projection is used, then the system structure is simple, but the illumination effectiveness is reduced due to glare and dark regions
Solution Approach 1:
The patent introduces vertical projection angles to the headlight system, with the first headlight projecting upward and the second headlight projecting downward. This spatial reconfiguration eliminates glare and dark regions caused by horizontal projection, significantly improving illumination effectiveness while maintaining structural simplicity through symmetric design.
Solution Approach 2:
The illumination function is segmented into two independent light patterns with distinct projection directions. The first light pattern projects upward to illuminate higher areas without causing glare, while the second light pattern projects downward to illuminate lower areas, thereby eliminating the dark regions and glare problems of traditional single-direction projection.
3Ease of manufacture
If both headlights project identical light patterns horizontally, then the system is symmetric and easy to manufacture, but visible separation edges appear between the light patterns
Solution Approach 1:
The patent employs asymmetric vertical projection where the first headlight projects upward and the second headlight projects downward. This creates continuous vertical light coverage without horizontal separation edges, as each light pattern occupies a distinct vertical zone while maintaining symmetric manufacturing simplicity through identical component design.
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
This configuration enhances the clarity and intensity of illumination, reduces distortion, and allows for distinct functions such as high beam and symbol projection, improving visibility and safety by minimizing glare and enhancing environmental illumination.
Implementation Method 1
respective pixel light sources (16, 26) arranged in a vertical direction, wherein the first pixel light source is formed to provide a first light pattern, and the second pixel light source is formed to provide a second light pattern
Data Source
AI summary
Two headlights are spaced apart from each other in the transverse direction of a vehicle in which they are installed. When the headlights are in position to simultaneously provide light patterns, a first light pattern is located at least partially above a second light pattern in the vertical direction with respect to the installation position of the headlights.