Multicolor Vehicle Light LED Layout for Beam-Stable Color Switching
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Solution Overview
Problem
Conventional vehicle lights are limited to emitting white light and struggle to switch between colors without causing beam shift, leading to poor performance and non-compliance with vehicle regulations in foggy or obstructed environments.
Innovation Solution
A vehicle light system with symmetrically arranged LEDs of different colors, allowing seamless switching between white and selective yellow light to improve visibility and comply with regulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional vehicle lights emit white light to maximize output and visibility, then visibility in clear environments is improved, but glare is caused in foggy or obstructed environments due to diffraction of short wavelengths
Solution Approach 1:
The patent changes the wavelength parameter of the light emitted by the vehicle light. White light (containing short wavelengths) is replaced with yellow light (longer wavelengths) in foggy conditions. This parameter change reduces diffraction and glare while maintaining visibility, directly resolving the contradiction between visibility and glare reduction.
2Adaptability or versatility
If conventional vehicle lights switch between different colors to adapt to different environments, then adaptability is improved, but substantial beam shift occurs when cycling between colors
Solution Approach 1:
The patent employs asymmetric optical design where different optical paths are used for different colors. The first optical unit (for white light) and second optical unit (for yellow light) have different optical characteristics, but the LED arrangements are positioned asymmetrically to compensate for beam shift. This allows color switching while maintaining beam position stability.
Solution Approach 2:
The patent addresses beam shift by introducing spatial positioning as an additional dimension of control. LEDs are positioned at specific locations and orientations on the substrate, with mirror symmetry across the vertical centerline. This spatial arrangement compensates for optical path differences between colors, maintaining stable beam positions during color transitions.
3Adaptability or versatility
If conventional vehicle lights use multiple colors to improve performance in different conditions, then environmental adaptability is improved, but uneven lighting results due to beam shift
Solution Approach 1:
The patent uses asymmetric optical unit designs where the first optical unit (white light) and second optical unit (yellow light) have different optical paths and characteristics. The LED positions and orientations are specifically designed to compensate for these differences, ensuring uniform lighting distribution across the beam pattern regardless of color being emitted.
4Adaptability or versatility
If conventional vehicle lights cycle between colors to handle different weather conditions, then adaptability is improved, but compliance with vehicle regulations is compromised due to beam shift
Solution Approach 1:
The patent implements a dynamic lighting system that can switch between white and yellow colors based on environmental conditions. The controller dynamically selects which color to emit, and the optical design ensures that beam patterns remain stable and compliant with regulations during and after color transitions, maintaining regulatory compliance while providing adaptability.
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 provides improved visibility in challenging conditions with minimal beam shift, meeting regulatory standards and enhancing safety and aesthetics.
Implementation Method 1
The plurality of LEDs may include at least two LEDs of a first color and at least two LEDs of a second color
Data Source
AI summary
Methods, systems, and devices for a vehicle light. The vehicle light may include a housing and a substrate coupled to the housing. The vehicle light may further include a plurality of LEDs coupled to the substrate. The plurality of LEDs may include at least two LEDs of a first color and at least two LEDs of a second color. The plurality of LEDs may be positioned on the substrate such that a left half or portion of the substrate mirrors a right half or portion of the substrate and/or a top half or portion of the substrate mirrors a bottom half or portion of the substrate with respect to a position and a color of each LED of the plurality of LEDs.