室內照明之照度分佈型式對空間印象的影響

The Effects of Interior Illuminance Distribution on Spatial Impression

自古以來，「光」除了提供空間中明視性的需求之外，也往往被用來營造空間的氣氛。本研究從與照明設計端較密切的照度觀點切入，將各種照明條件的平均照度值控制在相同的基準上，單獨改變光源的配置，探討室內照明的照度分佈型式與空間印象之間的對應關係。本研究所獲致的結論如下所述。第一，照度分佈型式對大多數的評價項目皆有顯著的影響。光源配置與照度分佈確實會影響空間氣氛與知覺情緒。第二，照度分佈較均勻的照明環境，其氣氛與評價較佳，但容易顯得單調。第三，光源配置呈對稱者，其氣氛與評價較佳，但同樣容易顯得變化不足。第四，室內空間的四個角落若同時有配置照明光源，則多半可得到不錯的氣氛與評價。根據上述結果，藉由重新調整光源配置與照度分佈，設計者將可更準確地塑造出欲傳達的空間印象。

“Light” is not only used to satisfy the visibility of human beings, but also used to create the atmosphere in a space. The aim of this research is to investigate the effects of interior illuminance distribution on spatial impression. The results are as follows: Firstly, the effects of illuminance distribution on most of the evaluation items are significant. Secondly, among all 20 types, the types with well-balanced illuminance distribution or with symmetry arrangement of lighting led to better atmosphere and evaluation, but poor variation. Thirdly, the types that the four corners of the space are lighted up led to better atmosphere and evaluation. The obtained results suggest that the effects of controlling interior illuminance distribution can be used to create the spatial impression what a designer try to express without consuming extra energy.