鑑於LED在照明上的諸多優點，如：體積小、發光效率佳、壽命長、無汞污染等因素，且在節能、環保、安全性上皆優於傳統燈泡與日光燈管，使得LED照明燈具開發及其照明設計應用等，皆為極具潛力的研發議題。由於LED發光面積集中、光源具指向性以及白光LED光源頻譜常有藍光峰值等特點，使LED燈具容易衍生干擾視覺的眩光。本論文利用研究團隊已建立之視覺舒適度測試環境與實驗流程，經由心理物理學實驗，比較傳統日光燈管與白光LED燈具之不適眩光，以問卷方式獲得視覺舒適度之主觀評量，以閃光融合閾值量測作為視覺疲勞度的指標。
　　實驗使用閃光融合儀、視力檢查儀、問卷等方式進行數據蒐集，將數據匯入統計軟體SPSS中分析。結果顯示，改變燈具種類（LED、傳統日光燈）有影響人眼主觀辨識度的趨勢，以LED燈具表現較差，但尚未達統計顯著水準，將持續進行實驗驗證。改變工作面照度（1163 lux、872 lux、490 lux），會影響人眼主觀辨識度、主觀視覺環境干擾以及主觀環境偏好等三項指標，其中以490 lux此亮度表現最差，1163 lux、872 lux則無顯著差異。

　　Light-emitting diodes (LEDs) are a good candidate for next-generation lighting due to their numerous advantages over the traditional lighting installations, such as small volume, longlife time, high efficiency and no mercury pollution. The potential in energy saving, safety, and environmental protection has made the development and applications of LEDs an emerging research area.
　　Due to the distinct characteristics of LEDs from conventional light sources, such as the source size, the radiant direction and the spectral content, LED lamps are more probable to induce glare that disturbs human’s visual sensation. This thesis aims to investigate the discomfort glare effects of white-light LEDs compared to the traditional fluorescent tubes. By utilizing the evaluation platform and the experimental procedure previously established in the research group, psychophysical experiments were performed to obtain subjective ratings of visual comfort through questionnaires and objective scores on visual fatigue from the critical flicker fusion (CFF) measurements.
　　Experimental results showed that changing lamp types (fluorescent lamps and LED lamps) did not affect human visual performance in the aspects considered in this study. There is a trend that subjects felt difficult to concentrate on reading and felt visual fatigue when LED lamps were used, but the data has not reached statistical significance. More subjects will be recruited to verify this issue in follow up studies.
　　Changing the illuminance level (1163 lux, 872 lux, or 490 lux) affected three factors in subjective ratings: recognition, visual disturbances, and lighting environmental preference. Higher illuminance yielded better subjective ratings, while brightness level 1 (1163 lux) and level 2 (872 lux) showed no statistical differences. Hence it is advantageous to increase the illuminance level and 872 lux is sufficiently high for energy saving consideration.

[1] http://www.digitimes.com.tw/tw/rpt/rpt_show.asp?cnlid=3&v=2010
1223-618&n=1&cat=LED
[2] R. C. Aquirre, E. M. Colombo, and J. F. Barraza, “Effect of glare on simple reaction time,” Optical Society of America, Vol. 25, No. 7, pp. 1790-1798, 2008.
[3] http://en.wikipedia.org/wiki/Light-emitting_diode
[4] J. D. Bullough, J. Van Derlofske, P. Dee, J. Chen, and Y. Akashi, An Investigation of Headlamp Glare: Intensity, Spectrum and Size, NHTSA Publication DOT HS 809 672, 2003.
[5] 東亞照明，「CNS國家照度標準」，http://www.chinaelectric.com.tw/cns.htm.
[6] M. S. Rea, Lighting Handbook: Reference and Application, 8th ed., Illuminating Engineering Society of North America (IESNA), New York, 460-461, 1993.
[7] 許勝雄、吳水丕、彭游，人因工程，滄海書局，台中市，601~606頁，2000。
[8] A. Stenzel, “Experience with 1000 lux in feather factory,” Lichttechnik, Vol. 14, p. 16, 1962.
[9] K. H. E. Kroemer and E. Grandjean, Fitting the Task to The Human, 5th ed, Taylor & Francis, London, pp. 275-305, 1997.
[10] H. Blackwall, “The evaluation of interior lighting on basis of visual criteria,” Applied Optics, Vol. 6, No. 9, pp. 287-303, 1997.
[11] I. Overington, “Towards a complete model of photopic visual threshold performance,” Optical Engineering, Vol. 21, No. 1, pp. 2-13, 1982.
[12] P. R. Boyce, Human Factors in Lighting, Taylor & Francis, London, 2003.
[13] CIE 117-1995, Discomfort Glare in Interior Lighting, 1995.
[14] 王蓓：眼睛疲劳的原因及分類（一），http://www.drwangbei.com/post/105.html。
[15] 王蓓：眼睛疲劳的原因及分類（二），http://www.drwangbei.com/post/106.html。
[16] Y. Horie, “A study on the evaluation of sample workload by a thermal video system,” In: M. Kumashiro and E. D. Megaw Eds, Towards human work: solutions to problem in occupational health and safety, Taylor & Francis, London, pp. 251-252, 1991.
[17] T. Iwasaki, S. Kurimoto and K. Noro, “The changes in colour flicker fusion values and accommodation times during experimental repetitive tasks with CRT display screens,” Ergonomics, Vol. 32, No. 3, pp. 293-305, 1989.
[18] K. Nishiyama, “Ergonomic aspects of the health and safety of VDT work in Japan: A review,” Ergonomics, Vol. 33, pp. 659-685, 1990.
[19] 鄭育菁，“數位投影機使用者在不同環境下的視覺疲勞與辨識績效評估”，朝陽技大學工業工程與管理研究所碩士論文，中華民國九十五年六月。
[20] H. Yoshitake, “Relation between the symptoms and the feeling of fatigue,” In: K. Hashimoto, K. Kogi, and E. Grandjean Eds, Methodlogy in Human Fatigue Assessment, Taylor & Francis, London, pp. 175-186, 1975.
[21] H. Heuer, G. Hollendiek, H. Kröger and T. Römer, “Dieruhelage der augen and ihreinflu β auf beobachtungsabatand and visuelle ermudung bei bildschirmarbeit (Rest position of the eyes and its effect on viewing distance and visual fatigue in computer display work),” Zeitschrift Fur Experimentelle und Angewandte Psyologie (Journal of Experimental and Applied Psychology), No.36, pp. 538-566, 1989. [Article in German]
[22] 鄭博文、陳澤明、洪士涵，“不同環境因子對於長期電腦使用者閱讀績效與視覺疲勞之影響”，中國工業工程學會95年度年會暨學術研討會，1-11頁，2006。
[23] F. M. Zeried, “Effect of the optical blur on visual performance and comfort of computer users,” Ph.D. dissertation, University of Alabama at Birmingham, 2007.
[24] 唐大崙，「知覺心理學」，http://staff.pccu.edu.tw/~tdl/percept1.htm ，1997。
[25] 李佳霖，“頭配式顯示器之人體生理參數測量分析”，中原大學醫學工程研究所碩士論文，民國九十年六月。
[26] 李明燕，“閱卷者之眼球運動與評分穩定度之研究：以地理科電腦螢幕閱卷為例”，教育研究與發展期刊，第一卷第三期，25-28頁，2005。
[27] 許勝雄、吳水丕、彭游，人因工程學，揚智文化，台北，191~196頁，1991。
[28] G. E. Legge, Psychophysics of Reading in Normal and Low Vision, Lawrence Erlbaum Associates, New Jersey, pp. 9-16, 2006.
[29] J. E. Sheedy, “Reading performance and visual comfort on a high-resolution large monitor compared to a VGA monitor,” Electronic Imaging, Vol. 1, No. 4, pp. 405-410, 1992.
[30] 林清山，心理與教育統計學，東華書局，台北，312-313頁，1992。
[31] 洪蘭、曾志朗，心理學實驗研究法，遠流出版公司，台北，86-113頁，1989。
[32] J. J. Shaughnessy, E. B. Zechmeister, and J. S. Zechmeister, Research Methods in Psychology, 8th ed., McGraw-Hill, New York, pp. 245-259, 2008.
[33] 吳德揚，“OA化辦公室照明研究”，國立成功大學建築研究所碩士論文，民國七十四年七月。
[34] H. Kobayashi and M. Sato, “Physiological responses to illuminance and color temperature of lighting,” The Annals of Physiological Anthropology, Vol.11, No. 2, pp. 45-49, 1992.
[35] T. Morita and H. Tokura, “The influence of different wavelengths of light on human biological rhythms,” Appl. Human Sci., Vol.17, No. 3, pp. 91-96, 1998.
[36] M. S. Rea, “Light-much more than vision,” Ph.D. dissertation, Lighting Research Center, Rensselaer Polytechnic Institute, 2002.
[37] P. R. Boyce, “Is full-spectrum lighting special?” IRC Internal Report, No. 659, pp. 30-35, 2005.
[38] M. S. Rea, Lighting Handbook: Reference and Application, 8th ed., Illuminating Engineering Society of North America (IESNA), New York, 460-461, 1993.
[39] Y. Nojiri, H. Yamanoue, A.Hanazato, M. Emoto and F. Okano, “Visual comfort/discomfort and visual fatigue caused by stereoscopic HDTV viewing,” Electronic Imaging, Vol. 5291, pp. 303-313, 2004.
[40] F. Speranza, L. B. Stelmach, W. J. Tam, and R. Glabb, “Visual comfort and apparent depth in 3D systems：Effects of camera convergence distance,” Proceedings of SPIE, Vol. 4864, pp. 146-156, 2002.
[41] 王保進，SPSS與行為科學研究，心理出版社，台北，150-152頁，2006。
[42] 朱經明，教育及心理統計學，五南圖書出版公司，台北，386-394頁，2007。
[43] 邱顯閔，“LED檯燈視覺舒適度研究”，國立中央大學光電科學與工程學研究所碩士論文，中華民國九十九年一月。
[44] L. G. Portoney, M. P. Watlins, Fundations of Clinical Research: Applications to Practice, Upper Saddle River, Prentice-Hall, p. 3, 2000.
[45] IEEE Standard PAR1789 public documents, “A review of the literature on light flicker: ergonomics, biological attributes, potential health effects, and methods in which some LED lighting may introduce flicker,” http://grouper.ieee.org/groups/1789/public.html
[46] 李熊業，“日眩光要因分析研究”，國立中央大學光電科學與工程學研究所碩士論文，中華民國九十九年六月。