著者

石田 正紀 竹村 博行

出版者

一般社団法人照明学会

雑誌

照明学会誌 (ISSN:00192341)

巻号頁・発行日

vol.95, no.9, pp.622-624, 2011-09-01

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Floor illuminance is an index that is generally used in lighting planning. Conventionally, when a space is designed based on this index, it has been difficult to take account of spatial brightness, a factor often considered important in the assessment of actual spaces. In this article, I report a case in which Feu1), an index proposed for estimating spatial brightness, is used in a lighting design so as to take spatial brightness into account. By implementing such a design, the designer has achieved energy saving while maintaining the same level of perceived brightness as the conventionally-designed spaces.