Pivotable Roller Headlight for Hazard Light Detection
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Solution Overview
Problem
Existing vehicle headlight systems lack an efficient and cost-effective method to detect and respond to unlit objects in the vehicle's vicinity, particularly in situations where a risk of collision is present, and fail to provide a seamless transition between different light distributions and patterns.
Innovation Solution
A method utilizing a device with two headlights, each equipped with a pivotable roller optical element and distinct light passage structures, allowing for the generation of different light patterns and distributions, including a limited light area that can be directed towards unlit objects, and enabling an intelligent, automatic light assistant function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate optical components are used to generate different light patterns, then the ability to detect and respond to unlit objects is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple light passage structures (first light passage structure for general illumination, second light passage structure for detecting unlit objects) onto a single roller optical element. This merging approach allows the system to generate different light patterns (low beam, high beam, and hazard light patterns) using one integrated component rather than multiple separate optical components, thereby reducing device complexity while maintaining the ability to detect and respond to unlit objects
Solution Approach 2:
The roller optical element is designed with multiple light passage structures that enable it to perform multiple functions: generating standard low beam distribution, generating high beam distribution, and generating hazard light patterns with limited light areas for illuminating unlit objects. This multi-functionality eliminates the need for separate optical components for each lighting mode, reducing overall system complexity
2Adaptability or versatility
If multiple separate optical components are used to generate different light patterns, then the ability to generate different light distributions is improved, but the material expenditure and manufacturing cost increase
Solution Approach 1:
The patent merges multiple light passage structures onto a single roller optical element, consolidating what would traditionally require multiple separate optical components into one piece. This reduces material expenditure by eliminating redundant materials and simplifying manufacturing processes
Solution Approach 2:
The roller optical element serves as a universal component that generates all required light distributions (low beam, high beam, and hazard light patterns) through its multiple integrated light passage structures, replacing the need for multiple specialized optical components and reducing overall material usage
3Reliability
If a limited light area is directed towards unlit objects, then driver awareness and safety are improved, but the system complexity increases
Solution Approach 1:
The hazard light function with limited light area is integrated into the roller optical element alongside other light passage structures. This merging approach allows the system to provide enhanced driver awareness for unlit objects without requiring a separate complex subsystem, thereby improving safety while minimizing the increase in system complexity
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
Enables an easily controllable hazard light function with reduced material and cost expenditure, effectively illuminating unlit objects and providing a smooth transition between light images, thereby enhancing driver awareness and safety.
Implementation Method 1
several light passage structures for generating different light patterns and/or driving light distributions are applied or incorporated on the roller
Implementation Method 2
at least one pivotable optical element for generating a light image and/or a headlight distribution, wherein the respective optical element is a roller
Data Source
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AI summary
The invention relates to a device for controlling a low beam (L) of a vehicle (1), comprising at least one headlight (1.1, 1.2) having at least one light source, means for pivoting a generated light distribution (L1, L2), and at least one optical element (1.1.1, 1.2.1), by means of which a beam path of the light distribution (L1, L2) can be adjusted, wherein the optical element (1.1.1, 1.2.1) has a light passage opening (LO) and can be pivoted into an optical axis (oA) of the light source if a hazardous situation is detected, wherein a beam of the light distribution (L1, L2) is bounded and/or deflected in such a way that a bounded light area (A) having an outer shape of the light passage opening (LO) can be produced in a predeterminable area in front of the vehicle (1). According to the invention, the optical element (1.1.1, 1.2.1) has further light passage structures, which are arranged such that, starting from the light passage opening (LO), a "high beam" (LF) light pattern or a "partial high beam" (LT) light pattern and thereafter the "high beam" (LF) light pattern can be produced by means of at least one of the further light passage structures by rotating, pivoting, and/or sliding the optical element (1.1.1, 1.2.1) in a direction and a "highway" (LA) light pattern and thereafter a "secondary road" (LL) light pattern can be produced by means of at least one of the further light passage structures by rotating, pivoting, and/or sliding the optical element (1.1.1, 1.2.1) in an opposite direction.