Excimer UV-C Bulb Filtering Harmful Wavelengths in Occupied Spaces
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Solution Overview
Problem
Current UV-C sterilization technologies are not safe for use in the presence of people and living tissues, as they can emit harmful radiation, and existing solutions are inefficient and lack effective monitoring and maintenance features.
Innovation Solution
A human-safe UV-C sterilizing bulb using 207 nm or 222 nm excimer technology combined with an integral band pass filter that blocks harmful wavelengths, integrated with a Dielectric Barrier Discharge (DBD) mechanism and a smart chip for monitoring and IoT connectivity, ensuring safe operation and efficient pathogen killing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional UV-C sterilization technologies are used, then pathogen killing effectiveness is improved, but safety for human tissue is worsened due to harmful radiation emission
Solution Approach 1:
The patent segments the UV-C spectrum into safe and harmful wavelength ranges by using a bandpass filter that transmits only the 207 nm wavelength while blocking other UV-C wavelengths. This segmentation allows the system to maintain pathogen-killing effectiveness while eliminating harmful radiation exposure to human tissue.
Solution Approach 2:
The patent introduces a bandpass filter as an intermediary component between the UV-C light source and the environment. This filter acts as a mediator that selectively transmits the safe 207 nm wavelength while blocking harmful wavelengths, thereby protecting human tissue while maintaining sterilization effectiveness.
2Object-affected harmful factors
If 207 nm or 222 nm excimer technology with bandpass filter is used, then safety for human tissue is improved, but pathogen killing effectiveness may be worsened due to restricted wavelength range
Solution Approach 1:
The patent changes the wavelength parameter of the UV-C light to specifically 207 nm, which has been shown to be effective against pathogens while being safe for human tissue. The bandpass filter ensures that only this specific wavelength is transmitted, optimizing both safety and effectiveness by selecting the most appropriate parameter value.
3Reliability
If monitoring and maintenance features are added to UV-C sterilization system, then system reliability and usability are improved, but device complexity is worsened
Solution Approach 1:
The patent incorporates a smart chip with monitoring capabilities that provide real-time feedback on the UV-C sterilization system's operation, including wavelength verification and intensity monitoring. This feedback mechanism ensures the system maintains safe and effective operation while providing users with information about system status without requiring complex manual monitoring.
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 solution provides a safe, efficient, and affordable UV-C sterilization system that effectively kills pathogens without harming humans, with enhanced usability and maintenance features, including real-time monitoring and automatic adjustments to maintain consistent output.
Implementation Method 1
A human-safe UV-C sterilizing bulb using 207 nm or 222 nm excimer technology combined with an integral band pass filter that blocks harmful wavelengths, integrated with a Dielectric Barrier Discharge (DBD) mechanism
Implementation Method 2
an integral band pass filter that blocks harmful wavelengths
Data Source
AI summary
An excimer bulb assembly, with an excimer bulb, at least one integral captured reflector, and an integral filter such that the excimer bulb only emits substantial UV radiation between 200 nm and 230 nm, using a filter that passes light from about 200 nm to 234 nm (+/â2 nm).