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Press Release

Addition of Window Blind Control Function to a Light Environment Control System Utilizing a Brightness Perception Index

-Realizing Improved Comfort and Energy Savings through the Integrated Control of Blinds and Lighting-
June  3,2015
New Energy and Industrial Technology Development Organization (NEDO)
Obayashi Corporation

As part of a NEDO project, Obayashi Corporation developed a new light environment control system by adding a newly developed window blind control function into a conventional lighting control system based on the concept of “brightness perception people feel.” This control system, through integrated control of blinds and lighting, makes it possible to maintain a bright impression with low illumination and improve the comfort of the indoor lighting environment. To evaluate this light environment control system, Obayashi Corporation installed the new control system in the Kanda Fugen Building (Chiyoda-ku, Tokyo) where Showa Denki Co., Ltd. Tokyo Branch resides and demonstrated that daytime energy consumption on a sunny day can be reduced by 63%.

In the future, we plan to demonstrate comfort and all-day, year-round reduction in energy consumption of 60% and to develop new control technology such as task lights that will compensate for desk illumination.

  • The Kanda Fugen Building, where the light environment control system was installed.
    The Kanda Fugen Building, where the light environment control system was installed.

For more information, please contact:

NEDO
Sawamura and Hishitani, Energy Conservation Technology Department
TEL:+81-44-520-5281

Obayashi Corporation
Suzuki, Corporate Communications Dept.
TEL:+81-3-5769-1014