Vehicular Active Stop and Tail Lamp Module with Movable Lighting Guide
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Solution Overview
Problem
Existing vehicular stop and tail lamp modules face challenges in providing different luminance levels for tail lamp and stop lamp modes using multiple physical light sources, which complicates space allocation and responsiveness to vehicle conditions.
Innovation Solution
A vehicular active stop and tail lamp module that uses a single light source with a movable lighting guide, adjusting its light-emitting surface area through fan-shaped guide panels to dynamically switch between tail lamp and stop lamp modes, allowing for efficient operation and increased visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple physical light sources are used to provide different luminance levels for tail lamp and stop lamp modes, then the lighting functionality is improved, but the device complexity and space allocation are worsened
Solution Approach 1:
The patent employs a movable lighting guide that can dynamically adjust its position to change the light-emitting surface area. This dynamic adjustment allows a single light source to produce variable luminance levels, replacing the need for multiple fixed light sources and reducing system complexity while maintaining adaptability for different lighting modes
Solution Approach 2:
The patent changes the effective light-emitting surface area parameter by moving the lighting guide relative to the light source. By adjusting this geometric parameter, the system achieves different luminance outputs from a single light source, enabling versatile lighting functionality without increasing device complexity
2Adaptability or versatility
If multiple physical light sources are used to provide different luminance levels, then the lighting functionality is improved, but the space allocation is worsened
Solution Approach 1:
The patent makes the single light source and lighting guide assembly perform multiple functions by adjusting the lighting guide position. The same optical components serve both tail lamp and stop lamp functions by varying the light-emitting surface area, eliminating the need for separate light source spaces and improving space allocation
Solution Approach 2:
The movable lighting guide enables the system to dynamically switch between different lighting modes within the same spatial footprint. By moving the lighting guide to different positions, the system achieves variable luminance outputs without requiring additional space for multiple light sources
3Device complexity
If a single light source is used with movable lighting guide, then the device complexity and space usage are improved, but the responsiveness to vehicle conditions may be worsened
Solution Approach 1:
The movable lighting guide is designed to respond quickly to control signals, enabling rapid adjustment of the light-emitting surface area. This dynamic mechanism allows the system to switch between lighting modes with fast response time, maintaining responsiveness despite using a single light source with mechanical movement
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 efficient operation in both tail lamp and stop lamp modes with a single light source, enhancing visibility and safety by adjusting light output based on vehicle conditions, while optimizing space usage and reducing the need for multiple light sources.
Implementation Method 1
a lighting guide that is movably disposed and that is configured to reflect and diffuse the light radiated from the plurality of light sources
Data Source
Figure 1
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Figure 2B
AI summary
A vehicular light module includes a light source configured to have a position that is adjustable longitudinally along a direction in which light radiates from the light source. The light module also includes a lighting guide that is movably disposed and that is configured to reflect and diffuse the light radiated from the light source. The light module further includes a moving unit configured to move the lighting guide to adjust the reflection and the diffusion of the light radiated from the light source by the lighting guide.