Portable Safety Light Waveguide for 360-Degree Visibility
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Solution Overview
Problem
Existing safety lighting systems often fail to provide comprehensive 360-degree visibility and are not designed to withstand harsh environments, making them less effective in construction sites, factories, and outdoor settings.
Innovation Solution
A portable safety light system featuring a housing with a prismatic waveguide lens that redirects light through total internal reflection, allowing 360-degree visibility, and is constructed with durable materials to withstand impacts, extreme temperatures, and environmental hazards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional safety lighting systems are used, then the lighting can be provided, but 360-degree visibility is not achieved and comprehensive coverage is insufficient
Solution Approach 1:
The lighting system is divided into multiple independent lighting elements arranged around the housing perimeter, with each element contributing to specific angular coverage. This segmentation allows the system to achieve comprehensive 360-degree visibility by coordinating multiple simpler units rather than relying on a single complex light source.
Solution Approach 2:
The patent transitions from traditional single-direction or limited-angle lighting to omnidirectional 360-degree lighting by arranging light sources around the peripheral dimension of the housing. This dimensional arrangement enables light to be emitted in all horizontal directions simultaneously, achieving comprehensive coverage without requiring excessive vertical complexity.
2Reliability
If standard housing materials are used, then manufacturing is easier, but the lighting system cannot withstand harsh environments and extreme temperatures
Solution Approach 1:
The housing is constructed using composite materials that combine the benefits of different material properties - such as high-temperature resistant polymers combined with reinforcement fibers or metal alloys - to create a structure that can withstand harsh environments while remaining manufacturable. This composite approach balances durability requirements with manufacturing feasibility.
Solution Approach 2:
The housing materials are selected and engineered with specific parameter changes in mind - such as adjusting polymer crystallinity, adding thermal stabilizers, or modifying alloy compositions - to achieve desired thermal and mechanical properties. These parameter modifications enable the housing to withstand extreme temperatures and harsh conditions while maintaining manufacturability through standardized processing techniques.
3Illumination intensity
If multiple lighting elements are used to achieve 360-degree coverage, then comprehensive visibility is improved, but the device complexity and potential failure points increase
Solution Approach 1:
Multiple lighting elements are merged into a unified lighting assembly that functions as a single coordinated system. The elements are arranged in a peripheral configuration and controlled collectively, allowing them to operate as one integrated unit that achieves 360-degree coverage without the complexity of managing independent systems. This merging reduces overall system complexity while maintaining comprehensive illumination.
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 ensures 360-degree light emission and durability in challenging conditions, meeting industry safety standards and certifications for use in hazardous environments.
Implementation Method 1
The waveguide can be configured to transversely redirect the light toward the periphery of the housing. The waveguide can be a prismatic waveguide and can be configured to transversely redirect the light via total internal reflection.
Data Source
AI summary
A light system includes a housing and a lighting assembly. The housing includes a first cap, a second cap, and a lens arranged between the first cap and the second cap to form a periphery of the housing. The lighting assembly is arranged proximate to the first cap and includes a plurality of lighting elements configured to emit light toward the second cap. The lens includes a waveguide having a reflecting surface that is non-planar and that is configured to receive the light emitted by the plurality of lighting elements and direct the light toward the periphery of the housing.