Vehicle Headlamp Optical Layout for Multi-Pattern Lighting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current vehicle lighting systems require multiple single-function lamps to meet various regulatory standards, leading to increased weight and complexity, and there is a need for cost-effective dual-functional or multi-functional lighting devices that can produce variable lighting patterns.
Innovation Solution
A vehicle lighting device with a light source assembly and optical assembly that can project two or more different illuminating patterns using fixed light sources and optical structures, allowing for customizable and efficient generation of lighting patterns without the need for complex mechanical adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple single-function lighting devices are used to meet regulatory standards, then lighting function reliability is improved, but vehicle weight and system complexity increase
Solution Approach 1:
The patent implements a single lighting device that can perform multiple lighting functions (headlamp, fog lamp, daytime running light) by using a plurality of light sources with different spectral characteristics and multiple optical structures with different light distribution patterns. The control system selectively activates specific light sources and optical structures based on driving conditions and regulatory requirements, enabling one device to replace multiple single-function lamps while maintaining lighting reliability and meeting all regulatory standards.
2Adaptability or versatility
If complex optical and mechanical structures are used to generate different lighting patterns, then lighting pattern versatility is improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The patent divides the lighting system into multiple independent light sources (each with different spectral characteristics) and multiple independent optical structures (each with different light distribution patterns). The control system selectively combines specific light sources and optical structures to generate different lighting patterns required for various functions (headlamp, fog lamp, DRL). This segmentation allows versatile lighting pattern generation without requiring complex mechanical adjustment mechanisms, as each component is simple and modular.
Solution Approach 2:
The patent achieves dynamic lighting pattern switching through electronic control of light source and optical structure selection, replacing complex mechanical adjustment mechanisms. The control system can rapidly switch between different lighting patterns by activating specific combinations of light sources and optical structures based on driving conditions, providing lighting pattern versatility without mechanical complexity.
3Reliability
If multiple single-function lighting devices are installed, then lighting function completeness is improved, but vehicle weight increases
Solution Approach 1:
The patent merges multiple single-function lighting devices into a single integrated lighting unit that houses multiple light sources with different spectral characteristics and multiple optical structures with different light distribution patterns. By combining the functions of headlamp, fog lamp, daytime running light, and other lighting devices into one physical unit, the overall system weight is reduced while maintaining complete lighting functionality and meeting all regulatory standards.
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 solution enables the production of multiple lighting patterns, such as low beam, high beam, and fog beam patterns, using stationary light sources and optical structures, reducing weight, complexity, and cost while meeting regulatory standards.
Implementation Method 1
an optical structure having a focal point, wherein the optical structure is configured to project a first beam pattern and a second beam pattern, and the first beam pattern is a forward driving beam pattern
Data Source
AI summary
Embodiments of the present disclosure relate to a vehicle head lamp with customized and/or variable lighting patterns. The vehicle lamp assembly may include an optical assembly, a first LED light source positioned to project light beams to the optical assembly a second LED light source positioned to project light beams to the optical assembly, and a control circuit configured to selectively operating the first LED light source and the second light source.