To accurately detect sleep latent time from the occurrence of the intention to sleep of a sleeping person to the initiation of sleep, to control melatonin secretion suppression reducing lighting and to improve sleep in a lighting system.
A control part 2 detects the measurement start time of the sleep latent time on the basis of the operation timing information of a lighting switch 6 or an alarm clock 7 operated by the intention to sleep of the sleeping person, stores the measurement start time of the sleep latent time in a memory 12, and controls a lighting device 3 so as to reduce the melatonin secretion suppression of the sleeping person from the prescribed time before the measurement start time of the sleep latent time. In such a manner, the measurement start time of the sleep latent time is accurately detected and lighting control for accelerating melatonin secretion is made possible.
TODA NAOHIRO
INOUE MANABU
| JP2004146227A | 2004-05-20 | |||
| JPH0428352A | 1992-01-30 | |||
| JPH11244383A | 1999-09-14 | |||
| JPH09303842A | 1997-11-28 | |||
| JP2003263221A | 2003-09-19 | |||
| JPH0889578A | 1996-04-09 | |||
| JP2005128976A | 2005-05-19 |
Katsumi Taguchi
Shinichi Mizuta