Headgear Lighted Strap Assembly for 360-Degree Visibility
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Solution Overview
Problem
Existing headlamps for construction workers, bicyclists, and runners do not provide adequate visibility in low-light conditions while keeping hands free and increasing user visibility to others, and they lack versatility in light emission options.
Innovation Solution
A headlamp assembly comprising a strap coupled to headgear, a light source supported by the strap for illumination, and a power source for powering the light source, which can emit light along the strap's length and offer multiple colors and brightness levels, with optional flexible printed circuit boards and light pipes for enhanced visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a traditional headlamp is used, then hands are kept free, but visibility to others is insufficient
Solution Approach 1:
The patent combines multiple light sources (front-facing LED and rear-facing LED) into a single headlamp assembly that integrates both illumination functions. This merging allows the device to provide both forward illumination for the user and rear visibility to others, while maintaining hands-free operation through the integrated design.
Solution Approach 2:
The headlamp assembly performs multiple functions simultaneously: it provides forward illumination for the user, rear illumination for visibility to others, and can be adjusted to different orientations. This multi-functionality resolves the contradiction by making a single device serve multiple visibility purposes without requiring additional hand operations.
2Adaptability or versatility
If a single light source is used, then device complexity is reduced, but light emission versatility is limited
Solution Approach 1:
The patent divides the lighting function into separate light sources positioned at different locations (front and rear) and oriented in different directions. This segmentation allows each light source to be optimized for its specific function while collectively providing versatile illumination options, and the modular design keeps complexity manageable.
Solution Approach 2:
The headlamp assembly incorporates adjustable components that allow the light sources to be positioned and oriented dynamically. The ability to adjust the orientation and position of light sources provides versatility in light emission patterns while maintaining a relatively simple overall structure through the use of adjustable rather than fixed multi-source configuration.
3Area of stationary object
If light emits only in one direction, then manufacturing is simplified, but visibility coverage is limited
Solution Approach 1:
The patent employs light sources with asymmetric illumination patterns - a front-facing LED for primary illumination and a rear-facing LED for visibility to others. This asymmetric configuration expands the overall illumination coverage area by addressing different directional requirements, while each individual light source maintains a simple, easy-to-manufacture design.
Solution Approach 2:
The patent adds a spatial dimension to the illumination coverage by positioning light sources at different locations and orientations. Instead of a single light source emitting in one dimension, the arrangement of front and rear light sources creates multi-directional coverage, expanding the illuminated area without significantly increasing manufacturing complexity through standardized light source components.
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 headlamp assembly provides 360-degree visibility, enhances user safety by increasing visibility to others, and offers customizable light patterns and colors, ensuring hands-free operation and improved low-light conditions.
Implementation Method 1
a light source supported by the strap for illuminating an area surrounding the headgear, the light source configured to emit light along a length of the strap between the front surface to the rear surface
Data Source
AI summary
A headlamp assembly for use with a piece of headgear, the headlamp assembly including: a strap configured to be removably coupled to the piece of headgear, the strap configured to extend over an apex of the piece of headgear when coupled to the piece of headgear; a light source supported by the strap for illuminating an area surrounding the piece of headgear, the light source configured to emit light along a length of the strap between a front end to a rear end of the strap; and a power source supported by the strap for providing power to the light source.