The Effects of Color Temperature and Illuminance Level on Subjective Evaluation in Reading

• Main Authors: Ming-Han Yesh, 葉明翰
• Other Authors: Ming-Yeh Hsieh
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/20859510982774047954

碩士 === 中原大學 === 建築研究所 === 98 === Reading is one of the major visual activities in daily life, and quality lighting is essential to a comfortable reading environment. The research is to study the subjective evaluation while reading paper and reading on computer screen under 9 combinations of color temperature and illuminance level, the effect of these various factors in lighting, and as a result, lead to the creation of better reading environment. The results are as follows: (1) The effect of illuminance level is the most significant in both reading paper and reading on computer screen. (2) In comparing all factors and their influence onto the two reading activities in this research, a conclusion is made that all 9 different lit environments have similar effect on emotional perception such as thermal sensation, sense of interest and closeness regarding to said activities, hence changing the color temperature of lighting can improve the atmosphere of both reading paper and reading on computer screen. (3) Analysis of all variances in experiment leads to following conclusion: comparing to reading paper, reading on computer screen requires lower illuminance level, while that of 500lx in combination with color temperature of 4700K and 6700K shall receive good evaluation. (4) Within the two reading activities presented in this research, raising the illuminance level and color temperature contribute to better visibility and work efficiency, and lower the sense of tiredness. (5) In the cause of energy conservation, a lower illuminance level of 500lx is more advisable for the lighting of reading spaces, even though that of 750lx is best received. (6) The color temperature of 2800K proves to be beneficial to various psychological effects, but only in accordance with higher illuminance level for readers to stay well-conditioned while reading.