Dual-Mode LED Headlamp for Tactical Vehicles
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Solution Overview
Problem
Existing headlamps in tactical vehicles require manual switching between visible and infrared illumination, which is inefficient and disrupts the original OEM appearance, making them unsuitable for covert operations, especially in vehicles not equipped with infrared capabilities.
Innovation Solution
A dual-illumination unit combining visible light LEDs and infrared LEDs, controlled by electronic components that receive signals from the vehicle's headlight switch, allowing seamless switching between low-beam and high-beam modes while maintaining an unmodified OEM appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If incandescent lamps with blackout filters/lenses are used to produce IR illumination, then infrared illumination capability is achieved, but visible light cannot be completely blocked and mechanical movement is required to switch between visible and IR modes
Solution Approach 1:
The patent combines separate IR LED and visible light LED assemblies into a single integrated headlamp unit, eliminating the need for mechanical filter movement. The control system electronically switches between IR and visible light modes by activating the appropriate LED assembly, thereby simplifying the device structure while maintaining the ability to provide both IR illumination and visible light.
Solution Approach 2:
The patent replaces the mechanical filter movement system with an electronic control system that selectively activates either the IR LED assembly or the visible light LED assembly. This substitution eliminates mechanical components and enables faster, more reliable switching between illumination modes through electronic signals from the vehicle's headlight switch.
2Adaptability or versatility
If accessory covert headlamps with filters are installed on seized vehicles, then infrared capability is added, but the vehicle's original OEM appearance is altered
Solution Approach 1:
The patent designs a universal headlamp assembly that can be installed on various vehicle makes and models while maintaining the original OEM appearance. The integrated unit combines IR LED and visible light LED assemblies in a compact form factor that fits within existing headlamp housings, providing multi-functionality (IR illumination, low-beam visible light, high-beam visible light) without altering the vehicle's external appearance.
3Adaptability or versatility
If manual switching between visible and infrared bulbs is required, then both illumination types are available, but operational efficiency is reduced during nighttime vehicle operations
Solution Approach 1:
The patent implements a self-service system where the headlamp assembly automatically switches between IR and visible light modes based on signals from the vehicle's existing headlight switch. The control system receives the headlight switch signal and automatically activates the appropriate LED assembly (IR or visible light), eliminating the need for manual intervention and improving operational efficiency during nighttime vehicle operations.
Solution Approach 2:
The patent incorporates a control system that receives feedback from the vehicle's headlight switch and automatically adjusts the illumination mode accordingly. The control system monitors the headlight switch signal and responds by activating the appropriate LED assembly, creating a closed-loop system that enhances operational efficiency without requiring manual switching.
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 and covert infrared illumination without altering the vehicle's appearance, improving night vision capabilities and maintaining operational stealth during high-speed nighttime operations.
Implementation Method 1
at least one visible light LED
Implementation Method 2
at least one infrared (IR) LED
Data Source
AI summary
A dual-illumination unit that combines one or more visible LEDs and one or more IR LEDs in the same unit. The LEDs are mounted to circuit boards resembling a standard lightbulb shape, supported by a housing, the housing encapsulating electronic components controlling the LEDs and configured to be connected to standard OEM fusebox power. The unit also includes an adapter ring, removably coupled to the housing and configured to secure the unit to an original equipment manufacturer (OEM) headlight assembly of an associated vehicle.