Headgear Halo Lighting for Task Illumination and Worker Visibility
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Solution Overview
Problem
Existing light-emitting systems and personal protective gear in construction and emergency response fields suffer from inadequate illumination, blocking, and passive reliance on external light sources, complicating worker visibility and tracking in challenging environments.
Innovation Solution
A light-emitting system for headgear providing a continuous halo of light around the user, task lighting, and spot lighting, with independently controllable elements, and integrated tracking and communication capabilities, enhancing visibility and enabling real-time tracking and alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional headlamps provide a focused beam of light, then the light intensity in the immediate field of view is improved, but the illumination in areas beyond the user's immediate field of view becomes inadequate
Solution Approach 1:
The lighting system is divided into multiple independent light sources arranged in a halo configuration around the user's head, with each segment providing illumination to different spatial zones. This segmentation allows simultaneous focused illumination for task performance and ambient illumination for peripheral awareness without compromising either function
Solution Approach 2:
The lighting arrangement transitions from a single-point focused beam to a three-dimensional halo structure surrounding the user's head. This dimensional change enables light to reach multiple directions and planes simultaneously, providing both concentrated task lighting and extended peripheral illumination coverage
2Ease of manufacture
If reflective vests are used to increase visibility, then passive visibility enhancement is achieved, but the system relies on external light sources and provides only limited personal illumination
Solution Approach 1:
The system incorporates self-contained light sources that generate their own illumination without requiring external light sources. The wearable lighting device autonomously provides both visibility enhancement and personal illumination, making the system self-sufficient and independent of environmental lighting conditions
Solution Approach 2:
The invention merges the functions of passive reflective visibility enhancement with active personal illumination into a single integrated system. The wearable device combines light-emitting elements with the visibility enhancement function, eliminating the need for separate reflective gear and external light sources
3Area of stationary object
If floodlight towers are used to illuminate work areas, then overall lighting coverage is improved, but light is blocked by various objects creating regions of darkness
Solution Approach 1:
Instead of attempting to illuminate the entire work area uniformly, the system provides localized illumination tailored to each user's immediate workspace and peripheral zones. Each user carries their own light source that optimally illuminates their specific task area without being blocked by distant objects
Solution Approach 2:
The illumination approach is inverted from centralized overhead lighting to distributed personal lighting. Rather than one or few light sources attempting to cover large areas (and being blocked by objects), multiple portable light sources are positioned close to users, eliminating blocking issues by placing light sources within the users' immediate vicinity
4Ease of manufacture
If workers wear similar or identical uniforms and safety equipment, then standardization and ease of manufacture are improved, but tracking and identification of particular workers becomes difficult
Solution Approach 1:
The lighting elements can emit different colors or color patterns to encode worker identification information. By varying the color output of the wearable lighting devices, the system maintains standardized safety equipment while enabling easy visual differentiation and tracking of individual workers or different worker roles
Solution Approach 2:
The lighting system can employ periodic or pulsing patterns to convey information about worker status, role, or location. Different pulsing frequencies or patterns can identify different workers or indicate their operational state, enabling tracking without requiring non-standardized equipment
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 system provides enhanced illumination over a wide range, improves worker visibility, and facilitates real-time tracking and alerts, addressing the limitations of existing technologies in low-light conditions and complex work environments.
Implementation Method 1
a plurality of halo lighting elements configured to selectively generate at least a partial halo of light
Data Source
AI summary
A light-emitting system (1000) removably attachable to headgear is provided, which comprises: a form factor (1010) configured to surround a portion of the headgear when the light-emitting system (1000) is removably attached to the headgear for use; a plurality of halo lighting elements (1100) configured to selectively generate at least a partial halo of light that radiates outwardly away from the light-emitting system; and at least one task lighting element (1120) aligned in a direction along a task light axis (1130) that is fixed and oriented downwardly at an oblique angle (α) relative to a transverse plane (TP) of the light-emitting system (1000), the at least one task lighting element (1120) being configured to selectively generate flood task lighting in an area in front of a user.