Vehicle Headlight Primary Optical Element for Adaptive Beam Control
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Solution Overview
Problem
Current motor vehicle headlight systems lack an efficient way to adapt lighting to avoid dazzling oncoming vehicles while maintaining effective road illumination, and they often require multiple modules and components to achieve various lighting functions, which can complicate design and increase size.
Innovation Solution
A primary optical element for a motor vehicle lighting module is proposed, featuring a light introduction part with two series of primary optical means connected to a corrective part. The primary optical means are arranged on different levels and directions, allowing for independent light sources to project separate beams, which can be combined to form a single beam with adjustable cut-offs to avoid dazzling, using a single module with a one-piece structure made from the same material.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple modules and components are used to achieve various lighting functions, then lighting adaptability is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple lighting functions (ADB, DBL, AWL, motorway lighting) into a single headlight module with one-piece optical elements. The primary optical element integrates multiple optical functions that previously required separate modules, reducing overall system complexity while maintaining all required lighting adaptabilities.
Solution Approach 2:
The single headlight module is designed to perform multiple lighting functions simultaneously or selectively. The optical element can produce different beam patterns (adaptive high beam, dynamic bending light, adverse weather light, motorway lighting) using the same physical component, making the system universal and multi-functional.
2Stability of the object's composition
If optical guides are arranged side by side with precise shapes, then beam homogeneity is improved, but manufacturing precision requirements increase
Solution Approach 1:
Instead of arranging multiple separate optical guides side by side, the patent uses a single monolithic optical element that provides the same beam homogenization function. This integration eliminates the need for precise positioning and spacing of multiple guides, significantly reducing manufacturing precision requirements while maintaining beam quality.
Solution Approach 2:
The optical element incorporates internal segmentation or structuring within a single piece that achieves beam homogeneity without requiring external precision arrangement of multiple components. The segmentation is built into the monolithic structure during manufacturing, avoiding post-assembly alignment issues.
3Device complexity
If a single module with one-piece structure is used, then device complexity is reduced, but adaptability for multiple lighting functions decreases
Solution Approach 1:
The single optical element is designed with dynamic capabilities through selective illumination of different zones or sections of the optical element. By controlling which parts of the monolithic element are activated, the system can dynamically switch between different lighting functions (ADB, DBL, AWL, motorway) without physical reconfiguration.
Solution Approach 2:
Different regions of the single optical element are designed with locally optimized properties for different lighting functions. The element has varying optical characteristics in different zones, allowing each region to contribute to a specific function while the whole element remains a single integrated component.
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 solution enables the production of adaptive beams that avoid dazzling oncoming vehicles while maintaining effective road illumination, reducing the number of modules and components, and allowing for multiple lighting functions like Dynamic Bending Light and Adverse Weather Light with improved optical efficiency and reduced complexity.
Implementation Method 1
a first primary light source (1) and a second primary light source (2), arranged facing the light guides (8, 9)
Implementation Method 2
the ball forming in particular a correction portion making it possible to improve the optical efficiency of the system and to correct the aberrations of the light module
Data Source
Figure 1~4
Figure 5~6
AI summary
A primary optical element (3) for a motor vehicle lighting module comprises a light-introducing portion (7) equipped with a plurality of primary optical means (8, 9) connected at their output to a correcting portion (6), said primary optical means being arranged on at least two levels along a first direction in distinct first (8) and second (9) primary optical means. A plurality of first primary optical means (8) are arranged in series along a second direction substantially perpendicular to the first direction. The invention also relates to a lighting module for a motor vehicle headlight comprising a plurality of light sources (1, 2), such a primary optical element (3), and an associated secondary optical element (4).