Vehicle Light Guide Channels for Static and Dynamic Beam Control
Solution Overview
Problem
Existing lighting systems for vehicle lamps, such as motor vehicle headlights, are unable to generate high-resolution, dynamic, and static lighting functions simultaneously using a single light guide, leading to complex solutions requiring separate light modules.
Innovation Solution
A lighting system that incorporates a light guide channel element with multiple light guide channels, each assigned to an individually controllable light source, allowing light to be coupled in and out of the light guide to achieve both static and dynamic lighting functions with high homogeneity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single light guide is used to generate both static and dynamic lighting functions, then the device complexity is reduced, but the manufacturing precision and light distribution homogeneity deteriorate
Solution Approach 1:
The light guide is divided into multiple light guide channels, with each channel assigned to a specific light source. This segmentation allows precise control of light distribution in each channel while maintaining a unified single-module structure, thereby resolving the contradiction between device simplicity and manufacturing precision.
Solution Approach 2:
Different regions of the light guide are assigned different functions: some regions are designed for static lighting while others are designed for dynamic lighting. This local differentiation enables each region to be optimized for its specific function, achieving high light distribution homogeneity while maintaining overall system simplicity.
2Manufacturing precision
If separate light modules are used for static and dynamic lighting functions, then the light distribution homogeneity is improved, but the device complexity increases
Solution Approach 1:
Multiple light guide channels that were previously separate modules are merged into a single integrated light guide structure. Each channel maintains its independent light distribution characteristics while being physically integrated, thus achieving both high manufacturing precision and reduced device complexity.
Solution Approach 2:
The single light guide module is designed to perform multiple functions simultaneously - it can generate both static lighting effects and dynamic lighting effects through its different channels. This multi-functionality eliminates the need for separate modules while maintaining the precision required for each function.
3Adaptability or versatility
If multiple individually controllable light sources are integrated into a single light guide, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The light guide is segmented into multiple independent channels, each capable of receiving light from individually controllable light sources. This segmentation provides the adaptability to create various lighting patterns and effects while keeping each channel's structure simple and manageable.
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 system enables the generation of high-resolution, dynamic lighting functions alongside static functions, achieving efficient and homogeneous light distribution without the need for separate light modules.
Implementation Method 1
light emitted by the first illuminant is coupled into the light guide via the first light coupling section, wherein light coupled in by the first illuminant spreads axially within the lateral surface, in particular at least in sections, along the longitudinal extent of the light guide
Implementation Method 2
the light decoupling section, in particular the entire front side of the lateral surface and/or the entire rear side of the lateral surface, is designed to be diffusely scattering
Implementation Method 3
each light source of the second illuminant is assigned a light guide channel in such a way that light from a light source enters the light guide channel via a light entry region of the light guide channel assigned to the light source and exits the light guide channel via a light exit region of the light guide channel
Implementation Method 4
the wall has side surfaces which are designed such that a light beam entering the light guide channel from a light source of the second illuminant is, by reflection or scattering on side surfaces, wider at the light exit region than at the light entry region in a first plane which is oriented parallel to the axial longitudinal extent of the light guide
Data Source
Figure 1~2
Figure 3
AI summary
A lighting system (1) for a vehicle light, comprising a first illuminant (L1), a second illuminant (L2), and a light guide (4) arranged relative to the first illuminant (L1) and the second illuminant (L2) in such a way that light emitted by the two illuminants (L1, L2) is coupled into the light guide (4) and coupled out via a light coupling-out section (4c) of the light guide (4), wherein the lighting system (1) has a light guide channel element (6) arranged between the second illuminant (L2) and the light guide (4), wherein the light guide channel element (6) has a plurality of light guide channels (7) arranged next to one another, wherein each light guide channel (7) has a wall (8) designed in such a way that a light beam from the second illuminant (L2) is widened in a first plane (E1) and in a second plane (E2) which is orthogonal to the first plane (E2), is narrowed.