Full Description

In this work, a dynamic multi-channel LED lighting system is used to mimic natural light very precisely. First, we propose a closed-loop feedback control using a colour sensor to compensate for spectral shifts due to temperature changes or wear out of the LEDs. Second, we test the lighting system in a 24/7 working room over 1 year with a CCT-changing sequence designed for critical-task performing. Our results show that a precise control over the emitted spectrum can be achieved providing an unprecedented colour quality and enhancing people's level of satisfaction, comfort and alertness in indoor working environments.

Product Details

Published: 05/01/2018 Number of Pages: 5 File Size: 1 file , 1.1 MB