2012 Fiscal Year Final Research Report

Development of an LED light control system with a circadian clock photo-sensor to improve alertness

Research Project

Project/Area Number	22560583
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Architectural environment/equipment
Research Institution	University of Fukui
Principal Investigator	AKASHI Yukio 福井大学, 大学院・工学研究科, 教授 (10456436)
Co-Investigator(Kenkyū-buntansha)	ABE Hiroshi 福井大学, 医学部形態機能医科学講座, 教授 (80201896) NAKAZIMA Ayumi 福井大学, 大学院・工学研究科, 博士前期2年
Project Period (FY)	2010 – 2012
Keywords	生体リズム / 位相・光受容センサー / 光制御用LEDシステム
Research Abstract	In order to investigate the effect of LED lighting control on circadian rhythm of people who live in practical environments, a series of field experiments, in which ten subjects participated in total, were conducted. The experimental results showed that lighting control, which provided high intensity illumination in the morning and avoid high intensity illumination at night, advanced the human circadian rhythm and amplified the amplitude of the rhythm. It was also confirmed that such lighting control increases people’s alertness in the morning. Based on the experimental results and recent fundamental findings, an LED lighting control system, which eases disorder of circadian rhythm and increases alertness during studies and works, was developed.

(1 results)