Sequential Turn Signal Lamp for Intuitive Direction Indication
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Solution Overview
Problem
Existing turn signal lamps for vehicles do not intuitively notify neighboring drivers or pedestrians of the vehicle's changing direction, lacking effective illumination to enhance visibility.
Innovation Solution
A vehicle turn signal lamp with a light source unit and control unit that sequentially activates and reduces the light quantity of multiple light sources arranged horizontally, spreading light to indicate the turning direction, allowing for intuitive recognition of the vehicle's direction change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional turn signal lamps are used that only flicker to indicate direction change, then the device complexity is low, but the visibility and intuitiveness of direction indication is insufficient
Solution Approach 1:
The light source unit is divided into multiple individual light sources (first light source, second light source, third light source, etc.) arranged horizontally. Each light source can be independently controlled to illuminate in sequence from one end to the other, creating a directional indication effect that enhances visibility without requiring complex mechanical structures.
Solution Approach 2:
The control unit implements periodic illumination cycles where light sources are turned on sequentially and then turned off in reverse sequence. This periodic on-off pattern with sequential activation creates an intuitive directional signal that is more visible than continuous or simple flickering illumination.
2Illumination intensity
If multiple light sources are activated simultaneously to improve visibility, then the illumination intensity increases, but the intuitiveness of direction indication decreases
Solution Approach 1:
Instead of activating all light sources simultaneously, the patent segments the illumination into sequential activation of individual light sources. The control unit turns on light sources one by one from one end to the other, and turns them off in reverse sequence, creating a clear directional flow of light that preserves direction information while maintaining adequate illumination.
Solution Approach 2:
The illumination pattern is made dynamic through sequential activation and deactivation of light sources. The light sources are controlled to illuminate in a specific sequence (e.g., first, second, third light source in order) and turn off in reverse order, creating a moving light effect that clearly indicates direction without the confusion of simultaneous illumination.
Data Source
AI summary
A turn signal lamp for a vehicle includes a light source unit including light sources arranged in a horizontal or substantially horizontal direction and a control unit configured to turn on the light sources sequentially starting from the left-most or the right-most light source of the light sources by a first time interval or intervals and reduce respective light quantities of the respective light sources by a second time interval or intervals.