Retrofit UVC Light Assembly for Medical Sterilization
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Solution Overview
Problem
Existing light fixtures in medical facilities are costly and environmentally unfriendly to replace with UVC light fixtures for germ and virus eradication, as they require disposal of functional visible light fixtures.
Innovation Solution
A retrofit light fixture system that attaches to existing fixtures, featuring a frame with clips for mounting on T-bar supports, LED emitters emitting UVC light (200-280 nm) or controllable visible light, allowing for integration with existing lighting systems without disrupting their functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing light fixtures are replaced with UVC light fixtures to eradicate germs and viruses, then sterilization effectiveness is improved, but installation cost and environmental impact worsen due to disposal of functional fixtures
Solution Approach 1:
The retrofit UVC light assembly is nested within the existing light fixture structure, with the frame fitting over the fixture housing and the aperture positioned to allow UVC light transmission while maintaining the original fixture's visible light output. This nesting approach eliminates disposal costs and enables dual-functionality.
Solution Approach 2:
The retrofit assembly is designed to be universally compatible with standard light fixture housings, allowing the same UVC sterilization solution to be installed across multiple existing fixtures without custom fabrication. The frame and aperture design accommodates various fixture types while maintaining sterilization effectiveness.
2Reliability
If existing light fixtures are replaced with UVC light fixtures, then sterilization effectiveness is improved, but installation time and complexity worsen due to removal and disposal processes
Solution Approach 1:
The retrofit UVC light assembly is pre-assembled as a complete unit including frame, aperture, and UVC light source before installation. This preliminary assembly eliminates on-site fabrication time and allows for quick installation by simply mounting the pre-built assembly onto the existing fixture housing.
Solution Approach 2:
The retrofit assembly nests within the existing fixture structure, utilizing the existing mounting points and housing. This nesting approach eliminates the time-consuming process of removing old fixtures and allows installation to be completed by simply attaching the retrofit assembly to the existing structure.
3Adaptability or versatility
If a retrofit light fixture is installed over the existing fixture, then sterilization functionality is added, but light interference may worsen due to potential blocking of visible light
Solution Approach 1:
The aperture in the frame is specifically designed with local optical properties that are transparent to UVC wavelengths while maintaining visibility and light transmission in the visible spectrum. This local quality differentiation allows UVC sterilization light to pass through effectively while preserving the visible light output of the existing fixture for normal illumination purposes.
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 cost-effective installation of UVC light for sterilization without removing existing fixtures, offering flexible lighting options for different settings and environments while minimizing light interference.
Implementation Method 1
at least one light emitting element disposed on the front side of the frame between the outer and inner perimeter
Implementation Method 2
light having a wavelength between 200-280 nm, also known as UVC light, can kill airborne and surface biological threats
Data Source
AI summary
In one aspect, a retrofit and complimentary light assembly for emitting light can be installed in a ceiling with an existing light fixture as a secondary source to provide UVC emitting light for sterilization purposes or alternative visible light for aesthetic purposes. In yet another embodiment, it can be installed as a standalone light system without an existing light fixture into a ceiling with T-bar supports.