Title: Research on lighting systems that realize multiple light environments in a single space

Abstract

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.