System for controlling UV-c LED

WO2026024693A3PCT designated stage Publication Date: 2026-02-26AEROCLENZ INC
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Patent Information

Application Number
PCT/US2025/038610
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-07-25
Filing Date
2025-07-22
Publication Date
2026-02-26

AI Technical Summary

Technical Problem

Existing UV-C disinfection systems risk exposing unintended living organisms to harmful irradiance levels while maintaining effective disinfection of intended organisms, as they lack real-time adjustment mechanisms to ensure safe exposure limits.

Method used

A system using mmWave sensors to measure distance and adjust UV-C LED power levels dynamically based on proximity, incorporating a controller and fail-safe mechanisms to maintain safe UV-C irradiance levels, ensuring compliance with actinic dosage limits.

Benefits of technology

Ensures safe UV-C exposure by continuously adjusting power levels to keep irradiance below established safety limits, preventing overexposure and maintaining effective disinfection.

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Abstract

A system for controlling a UV-C LED comprising a biological characteristic and / or recognition presence sensor, configured to measure the distance between the sensor and a living organism, and a controller programmed to receive the measured distance and calculate an adjusted power level for the UV-C LED based on the measured distance to maintain a predetermined safe UV-C irradiance level. The controller employs a dynamic adjustment algorithm to determine the adjusted power level of the UV-C LED to ensure that the UV-C irradiance remains below a maximum allowable exposure level as the living organism's distance changes. The dynamic adjustment algorithm comprises a representing a safety distance within which the UV-C LED should be deactivated to ensure safety. The controller may utilize the micro-Doppler effect to allow for a precise and reliable means for detecting and analyzing micro-scale movements that may be associated with breathing and heartbeat.
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Citation Information

Patent Citations

  • Method and device for disinfecting an area

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  • Pumping unit

    KR1020250082611A

  • Systems and methods for reducing risk of pathogen exposure within a space

    US20240046390A1