The Effect of the Store-bought LED Lamps on the Action Prediction of Circadian Rhythm(<Feature>Indoor Lighting at Night Taking Effect of Light on Circadian Rhythm into Consideration)

Abstract

The repor しaddresses the action factors of tl ユe generaUamps calculated by mea 皿 s of the quantification meth 〔 》 dS for cir(］ adian rhythm ． The general larnps were 重 he store − bought 46 LED and 12fluorescent lamps． 皿 亘 e ranges ofthe correlated color tempe 【 atUres and the illuminances of lamps were about 2700 − 7300K and 10〔 ト500 b【． The quant血 cation methods were DIN V503 1−100 model ， Rea ' s proposal model ， Takahashi ' s proposa1 mode 旦 and Enezi ' s pK) posal mode1 ． As a result ， it was fo d 血 at 血e correlated color temperatUres and the illuminances from the larnps have influence on the action factors compared wi 血 kinds ef lamps， 皿 ris resUlt suggested the actien factors between 血e general LED lamps and 血e eXisteCl lamps were approximately − same as long as the correlated color temperatures and the illuminances between the旦 amps were similar ．