Dynamic Color Brake Lights for Low-Light Visibility
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Solution Overview
Problem
Existing vehicle brake light systems lack sufficient visibility, especially in low ambient light conditions, and do not effectively convey different levels of deceleration or heightened awareness.
Innovation Solution
Implementing a system that uses continuously changing colored lights, particularly colors like green, blue, and yellow/amber, which are perceived with greater apparent intensity by the human eye, to enhance visibility and awareness, utilizing light-emitting diodes or similar technology to create a binary ON/OFF system that changes color when brakes or hazard lights are engaged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional red lights are used in brake light systems, then the system maintains traditional design simplicity, but the visibility and perceived intensity are insufficient especially in low ambient light conditions
Solution Approach 1:
The patent applies color changes by transitioning from conventional static red lights to dynamically changing colors including green, blue, and yellow/amber. These colors are specifically chosen because they are perceived by the human eye with much greater apparent intensity, particularly in low ambient light conditions. The color changes create a state of heightened awareness and significantly improve visibility while maintaining reasonable system complexity through the use of LED technology.
Solution Approach 2:
The patent implements periodic action through continuously changing colored lights that cycle through different colors (green, blue, yellow/amber) to denote braking state and enhance visibility. This periodic color transformation creates dynamic visual patterns that are more noticeable and effective at capturing driver attention compared to static lighting, thereby resolving the visibility limitation without requiring overly complex systems.
2Loss of information
If static single-color lights are used, then the system maintains simple operation, but it cannot effectively convey different levels of deceleration or heightened awareness
Solution Approach 1:
The patent uses different colors (green, blue, yellow/amber) to denote different levels of deceleration and braking intensity. This color-coding system effectively communicates varying degrees of braking information to other drivers without complicating the operational control, as the color changes are automatically managed by the control system based on detected braking parameters.
Solution Approach 2:
The patent changes the parameter of light color to encode information about deceleration levels. By varying the color parameter dynamically, the system conveys multiple levels of braking information (mild deceleration, moderate deceleration, rapid deceleration) through a simple visual language that is easily distinguishable and does not require complex operational intervention.
3Illumination intensity
If traditional brake light systems are used, then the system maintains conventional design, but visibility in low ambient light conditions is insufficient
Solution Approach 1:
The patent specifically selects green, blue, and yellow/amber colors because human eyes perceive these colors with much greater apparent intensity in low ambient light conditions compared to conventional red lights. This color selection fundamentally improves visibility reliability during nighttime or low-light driving conditions, making the brake light signal more reliable and detectable when it is most needed.
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 significantly increases the visibility and perceived intensity of brake, hazard, and safety lights, especially in low light conditions, by leveraging the human eye's sensitivity to specific wavelengths, promoting heightened awareness and safety through more noticeable light patterns.
Implementation Method 1
utilizing light-emitting diodes or similar technology to create a binary ON/OFF system that changes color when brakes or hazard lights are engaged
Data Source
AI summary
Vehicle brake lights, hazard lights, bicycle lights, and safety lights for pedestrians, walkers, and runners. The human eye perceives light differently depending on its frequency (or wavelength) relative to the condition or degree of ambient lighting. Moreover, the human visual system perceives changes more readily than a static scene or state. Additionally, light in the green/blue part of the visual spectrum is perceived with much greater apparent intensity compared to red, particularly in low ambient light conditions. Accordingly, a lighting system and method that includes using brake lights that provide continuous changes in color during deceleration and, moreover, that uses blue, green, blue-green, yellow-green, and amber (or yellow) light or combinations thereof.