THE PREFERENCE OF THE INDOOR ILLUMINANCE AND COLOR TEMPERATURE: SCALE MODEL EXPERIMENT ASSUMING DAILY ACTIVITY

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  • 生活行為を想定した室内照度・色温度の好ましさに関する模型実験
  • セイカツ コウイ オ ソウテイシタ シツナイ ショウド イロ オンド ノ コノマシサ ニ カンスル モケイ ジッケン

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This paper aims to show the preferred combinations of illuminance and color temperature under various daily activities in residential houses. Subjective experiments were carried out using scale models illuminated by RGB fluorescent lamps with the dimmer. "Preference", "Brightness", and "Naturalness of color appearance" were evaluated as the scenes of "Relaxing", "Getting together", "Dining", "Cooking", "Learning", and "Resting (before retiring)". 25 combinations which consist of 5 illuminances (501x, 1001x, 2001x, 4001x, 8001x) and 5 color temperatures (3000K, 3500K, 4200K, 5000K, 6500K) were investigated. Preferred combinations of illuminance and color temperature vary according to the activity. The results show that the traditional Kruithof's curve is not necessarily effective under various scenes in the residential houses.

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