UV Light Bar with Slant Angle Controller for Pathogen Deactivation
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Solution Overview
Problem
Existing solutions for reducing pathogen spread in indoor spaces are inadequate, as pathogens can still spread due to non-compliance with face masks and disinfecting agents, and aerosol or ballistic particles may reach individuals before being treated by upper air or HVAC disinfection systems.
Innovation Solution
A disinfecting device with an elongated light bar that emits UV, IR, or visible light, featuring a slant angle controller to project a disinfecting light curtain, which can be adjusted to maximize pathogen deactivation without relying on air circulation, ensuring effective disinfection while maintaining audibility and visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If upper air or HVAC disinfection systems are used, then pathogen spread is reduced, but pathogens can reach individuals before being treated
Solution Approach 1:
The patent applies preliminary action by positioning UV light sources strategically to disinfect air in the breathing zone before pathogens can be inhaled or contact individuals. The system proactively treats aerosol particles in the immediate vicinity of occupants rather than relying on passive upper air or HVAC treatment that occurs after pathogens have already dispersed.
2Reliability
If face covering masks and disinfecting agents are used, then pathogen spread is mitigated, but compliance is not guaranteed
Solution Approach 1:
The patent implements self-service by creating an automated environmental disinfection system that continuously treats air without requiring active participation or compliance from occupants. The UV disinfection system operates autonomously to neutralize pathogens in the air, eliminating the need for individuals to consistently wear masks or apply disinfecting agents.
3Reliability
If disinfecting light is projected in a controlled optical plane, then pathogen deactivation probability increases, but device complexity increases
Solution Approach 1:
The patent applies local quality by concentrating disinfection effort in specific optical planes where aerosol particles are most likely to be inhaled or contact occupants. Rather than uniformly distributing light in all directions, the system directs intense UV radiation along defined optical paths through the breathing zone, maximizing pathogen deactivation probability in critical areas while maintaining manageable device complexity.
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 device effectively reduces pathogen spread by projecting disinfecting light in a controlled optical plane, increasing the probability of pathogen deactivation and reducing the risk of infection, while minimizing exposure to occupants and optimizing power consumption.
Implementation Method 1
irradiating the upper air of the indoor space or the air circulating in the HVAC system with hazardous germicidal UV radiation which disinfects the aerosols
Implementation Method 2
at least one light source (such as a UV, IR or 405 nm light source) configured to output a disinfecting light
Data Source
Figure 1a~1b
Figure 2~3
Figure 4a~4b
AI summary
The present invention relates to a disinfecting device, a disinfecting system and a method for control the disinfecting device. The disinfecting device (1) comprising a light bar (10) configured to be mounted to a surface (2) of an indoor space (4), said light bar (10) including at least one light source (100), and at least one optical element (102), configured to shape disinfecting light emitted by the light source(s) (100), such that the light bar (10) is configured to emit disinfecting light in an optical plane (140) extending from a longitudinal axis of the light bar (10); and a slant angle controller (120), configured to, when the light bar (10) is mounted to a surface (2), control a slant angle (S, S2) between the optical plane (140) and the surface (4).