Light’em: A Multiplexed Lighting System

The main contribution of this study is to realize the multiplexed lighting environment using time-division active shutter glasses. These days, the improvement of an indoor environment is actively studied to realize desirable condition. Visual stimulation, especially from peripheral vision, affects lots of factors such as feelings, work efficiency, mental stress, and relaxation. However, the influence of peripheral visual stimulation varies among individuals, and it is difficult to control peripheral visual stimuli individually in the same space. In most cases, the visual environment suitable for each person collide with each other and desirable visual environments for all occupants cannot be realized at the same time. Therefore, in this study, we propose a lighting environment multiplexing system. The proposed system makes independently controllable multiple lighting environments for multiple occupants in one space. We utilize active shutter technology for visual multiplexing in the system. With this system, completely different lighting environments can be simultaneously realized in the same space, such as “environment where the whole space is bright with a white light” vs. “environment where the incandescent lamp shines softly only partially.” This study presents the implementation and evaluation of the proposed system, which can control intensity, color, and distribution in the multiplexed lighting environment.