LED UV Sterilization Device with Visible Light Indicator
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Solution Overview
Problem
Traditional UV sterilization lamps pose safety risks due to invisible ultraviolet light and may cause harm if a person enters the sterilization area during use, and they may not ensure complete disinfection.
Innovation Solution
An LED UV sterilization device with a lens assembly for visible and ultraviolet light, including a visible light source and an ultraviolet light source assembly, where visible light indicates the irradiation area of ultraviolet light, and a human body sensing component to control UV emission, ensuring safety and effective disinfection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional UV sterilization lamps are used, then sterilization function is provided, but safety risks increase due to invisible ultraviolet light causing harm to human body
Solution Approach 1:
The patent introduces a visible light indicator that changes the visual characteristic of the sterilization area from invisible UV light to visible light. This allows users to see the sterilization zone, eliminating the safety risk of invisible UV radiation while maintaining sterilization effectiveness through the UV light source.
Solution Approach 2:
The patent uses visible light as an intermediary to bridge the gap between UV light source and human safety. The visible light indicator acts as a mediator that communicates the location and status of the UV sterilization area, allowing users to understand where UV light is being emitted without direct exposure risk.
2Reliability
If traditional UV sterilization lamps are used, then sterilization is performed, but complete disinfection cannot be ensured due to invisible light
Solution Approach 1:
The patent transforms the invisible UV light into visible light through an optical converter or indicator lens. This color/visibility change provides visual feedback about the sterilization area, allowing users to confirm complete coverage and ensure thorough disinfection by seeing the entire treated zone.
3Device complexity
If UV light source is used without visible indicator, then device complexity is reduced, but safety and effectiveness monitoring becomes difficult
Solution Approach 1:
The patent adds a simple optical element (indicator lens or converter) that changes UV light to visible light. This minimal addition provides clear visual detection of the sterilization area without significantly increasing device complexity, solving the monitoring difficulty with a straightforward optical solution.
Solution Approach 2:
The visible light indicator serves multiple functions: it indicates the sterilization area location, shows operational status, and provides safety warning. This multi-functionality is achieved through a simple optical element, avoiding the need for complex electronic sensors or multiple separate 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 device provides safer and more effective disinfection by visualizing the UV sterilization area with visible light, preventing human exposure to UV light and enhancing disinfection thoroughness.
Implementation Method 1
The visible light source assembly includes a visible light chip
Implementation Method 2
The ultraviolet light source assembly includes one or more of a UVA chip, a UVB chip, and a UVC chip
Implementation Method 3
the first lens is used for visible light transmission
Implementation Method 4
the second lens is used for ultraviolet light transmission
Data Source
AI summary
An LED UV sterilization device, including a lens assembly and a light source assembly; the lens assembly includes a plurality of lenses of different materials suitable for light of different wavelengths; the light source assembly includes a visible light source assembly and an ultraviolet light source assembly. Visible light irradiated by the visible light source assembly and invisible ultraviolet light irradiated by the ultraviolet light source assembly pass through lenses of corresponding materials and form an overlapped light spot, so that an irradiation location of the invisible ultraviolet light is indicated by the visible light. The LED UV sterilization device not only realizes safe disinfection and sterilization, but also visualizes the sterilization process. The sterilization process is safer and more reliable, and the sterilization area is more accurate.