THE RELATION BETWEEN PREFERRED LIGHTING AND BEHAVIOR IN OFFICES : Problems and possibility of task-ambient lighting

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  • オフィスにおける行動と好まれる照明 : タスク・アンビエント照明の問題点と可能性
  • オフィス ニ オケル コウドウ ト コノマレル ショウメイ タスク アンビエン

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An experimental study to evaluate task-ambient lighting systems was carried out in a laboratory which varied in 4 types of lighting. After experiences for a total of 40 days ; ten days at a time, in a room for each type of lighting, fourteen subjects were asked to fill out a questionnaire relating to the visual satisfaction and six activities observed in the room. The evaluation of the task-ambient lighting depended on the work being performed. With increasing ambient illuminance, subjects were satisfied for reading and writing, or meetings. At an ambient illuminance of 200 lux, over 60% of the subjects were satisfied for accomplishing creative work. The low illuminance ambient lighting thus enabled them to concentrate on their creative work.

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