Hybrid Backup Light Integrating Laser Warning Projection
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Solution Overview
Problem
Reversing vehicles often have difficulty alerting oncoming traffic due to obstructed views, leading to potential collisions, as traditional backup lights do not provide an effective warning to pedestrians or cyclists when reversing out of tight spaces with limited clearance.
Innovation Solution
A hybrid backup light system that integrates a warning light, either using a laser or high-powered LED, projecting onto the road to indicate the vehicle's reverse movement, providing an early warning to oncoming traffic by shining red lines or patterns on the ground when the vehicle is in reverse gear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional backup lights are used, then the vehicle structure remains simple, but the warning effectiveness to oncoming traffic is insufficient
Solution Approach 1:
The patent combines the backup light function and warning light function into a single integrated lamp assembly. The housing contains both backup LEDs and warning LEDs (including laser sources) that operate together, merging two separate lighting systems into one unified device that provides both reverse illumination and safety warning functions simultaneously.
Solution Approach 2:
The integrated lamp assembly serves multiple functions: it provides backup lighting for reverse visibility, generates warning patterns on the ground to alert oncoming traffic, and can operate in different modes (backup mode, warning mode, or both simultaneously). This multi-functional design resolves the contradiction by enhancing reliability through multiple functions while managing device complexity through integration.
2Loss of time
If backup lights are activated, then the vehicle's reverse position is indicated, but early warning to oncoming traffic is not provided
Solution Approach 1:
The warning light activates simultaneously with or before the backup light when the reverse gear is engaged, providing early warning to oncoming traffic before the vehicle actually begins moving backward. This preliminary action ensures that pedestrians and other vehicles have advance notice of the reversing vehicle's intent, addressing the time loss issue while using the same integrated system to manage complexity.
Solution Approach 2:
The ground-projected warning pattern acts as an intermediary between the vehicle and oncoming traffic, conveying the vehicle's reverse intent visually on the ground surface. This intermediary warning mechanism provides early notification without requiring direct line-of-sight between the vehicle and observers, effectively reducing loss of time while maintaining manageable system complexity through the integrated lamp design.
3Ease of operation
If the vehicle reverses out of tight spaces, then maneuverability is improved, but visibility to oncoming traffic is obstructed
Solution Approach 1:
Instead of projecting warning light horizontally where it might be blocked by obstacles in tight spaces, the patent projects the warning pattern vertically onto the ground surface. This dimensional change from horizontal to vertical projection ensures that the warning is visible to oncoming traffic from above and from the sides, maintaining effectiveness even when the vehicle is obscured by obstacles during reversing maneuvers in confined spaces.
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
Enhances safety by providing an early warning to oncoming traffic and pedestrians, reducing the risk of collisions by visually indicating the vehicle's intended path and movement, even when the vehicle is obscured by obstacles.
Implementation Method 1
the warning light source comprises a laser source or an LED source directed toward the road
Implementation Method 2
the warning light source comprises a laser source or an LED source directed toward the road
Data Source
AI summary
Various embodiments of the present invention provide a hybrid backup lamp having a backup light and a laser or LED warning light integrated therewith.