Improvement of indoor environments has attracted attention from various aspects such as health and economy. In this study, we focus on the lighting environment in which it is difficult to provide a good lighting environment for individual in a single space with multiple people. In this study, we developed a method to realize multiple independent lighting environments simultaneously in a single space as shown in Fig.1. We applied time-division light multiplexing as a method of transmitting multiple lights in a single space, and synchronously controlled the light source and the shutter device that blocks the light to present lighting as a high-speed blinking light that is imperceptible to humans. Experiments were conducted using the developed system. A "multiple lighting environment" was realized by using a time-division system combining a shutter device and a light source. It was confirmed that the developed system could deliver multiple lighting conditions independent of each other. It was found that he application of the system removes the potential inhibition of lighting manipulation behavior caused by sharing the lighting environment with others, and facilitates the setting of the desired lighting environment by each individual in the same space.
SHIN’ICHI WARISAWA is a professor at the Department of Frontier Sciences at the Univ. of Tokyo. From 1994 to 2000, he served as an Assistant Prof. of Tokyo Institute of Technology. Since 2000 he has been working at the University of Tokyo. He was a visiting researcher at Massachusetts Institute of Technology from 2010 to 2011, and a visiting professor at Université Jean Monnet in 2016. His current research focuses on wearable/ambient human health monitoring. Research cores are nano/micro sensing devices fabrication and sensing information technology application for human well-being.
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