空間亮度評估模型建立與應用研究

空間照明以往都以作業面或是地面的照度作為設計基準，但是以水平面的照度難以呈現空間明亮感受，因為視覺對於明亮的直觀感受與物理性數值有所區別，故少有對於空間明亮感數值化的評價方式。因此本研究以松下提出的空間亮度評價指標作為基礎，利用照明設計軟體模擬，藉此建立可供軟體應用之亮度評估模型，後續利用此模型進行走廊空間亮度因子分析，歸納出走廊空間明亮且節能的設計方法以利參考。本研究內容可歸納整理以下結論： 1.模擬松下電工照明示範計畫案例，利用統計分析相關性，發現將壁面平均輝度代入Feu理論公式，相關係數有93.6%的解釋力，具有顯著性。建立迴歸方程式為：Feu=1.997 +.160×(地板-平均輝度) +.041×(天花-平均輝度) +.008×(右牆面-平均輝度) +.077×(正牆面-平均輝度) +.103×(左牆面-平均輝度)，最終模型具有82.4%的解釋力，具有顯著性。 2.以空間亮度為考量的照明設計，牆面反射率建議可採高反射率，但須注意眩光的問題。考量照明節能時空間高度不宜挑高，才能充分利用燈具效率。如需達到Feu建議的走廊空間明亮標準，照明型式建議以天花照明。 3.探討建築化的照明型式，已針對照亮天花面開發的燈具，建議照明設計應採用合適的照明系統和設備，才可滿足節能與空間品質兼顧的需求。

關鍵字

空間亮度評價指標； Feu ；輝度；明亮感

並列摘要

The operation surface or the luminance of ground was taken to be the design standards of space lighting before. However, it is difficult for horizontal luminance to present space brightness. There are only a few evaluation methods of brightness numeralization because of the differences between the brightness instinctive feeling of vision and physical values. Therefore, the study takes the brightness evaluation index that was advocated by Matsushita as a foundation and uses lighting design software simulation to establish a brightness evaluation model for software applications. Afterwards, the study analyzes the brightness factors of corridor space to conclude the energy saving design methods for reference. The conclusions of the study are as follows: 1.The study finds significant relevant coefficients with 93.6% of explanation facilities by simulating the Matsushita’s demonstrated plan of electrical lighting and analyzing the relevance with statistics when the researchers put the average brightness of wall surface into the Feu theory equation. 2.The regression equation is Feu=1.987+0.107 x brightness of left wall surface + 0.079 x brightness of front wall surface + 0.166 x ground brightness + 0.041 x ceiling brightness, and the significant final module has 82.7% of explanation facilities. 3.A high reflectivity of wall surface is recommended for the lighting designs that take brightness into consideration; however, the glare problem should be taken into account as well. The lighting efficiency can be increased for an appropriate space height when energy savings are taken into consideration. Ceiling lights are recommended to reach the brightness standards of corridor space those are advocated by Feu. 4.Appropriate lighting systems and devices should be adjusted to meet the need for both energy savings and space quality when structural lighting patterns are being developed for ceiling lights.