本研究的目的主要以LED頻譜可調的特性，探討燈光特性(照度及色溫)對人們心理感受的影響，並分析不同個人屬性(年齡及性別)的使用者對於燈光照明感知的差異。
本研究透過語意分析法設計問卷，並招募40位不同年齡及性別之實驗參與者，進行19種燈光的照明感知評價。每位受試者在實驗開始後將依序感受以亂數呈現之LED燈光，接著填寫照明知問卷。
實驗結果顯示年齡以及性別確實會產生不同的照明感知，在相同的燈光情況下，男性參與者傾向認為燈光比較強烈，女性參與者覺得該燈光比較放鬆、愉悅且不刺眼。在相同的燈光情況下，50至65歲參與者較其他年齡層參與者認為燈光感覺比較強烈、明亮、清醒、鮮明且溫暖。另外，燈光的照度及色溫亦會讓人產生不同程度的心理感受。在照度越高的情況下，燈光感覺越強烈、鮮明、明亮、清醒、愉悅以及舒適，在照度越低的情況下，燈光感覺越不刺眼，而燈光照度為700 lx之燈光使人覺得最放鬆以及溫暖。在色溫越增加的情況下，燈光感覺越鮮明、明亮以及清醒，在色溫越降低的情況下，燈光感覺越溫暖、放鬆及不刺眼。
本研究透過反應曲面模擬燈光組合最佳化，並經由實驗驗證，針對工作場域及休息場域的照明環境提出設計之建議。照度介於700 lx與900 lx並搭配色溫4000 k與6500 k的燈光組合可以帶給人們明亮、清醒、愉悅以及舒適的感覺，適合應用在工作場域的照明環境設計。另外，照度介於650 lx與900 lx間搭配色溫3000 k與4000 k的燈光組合可以帶給人們溫暖、放鬆、愉悅以及舒適的感覺，適合應用在休息場域的照明環境設計。

The objective of this study is to use different LED white lightings to know the influence of illuminance and color temperature of the LED lighting to people’ visual perceptions. Furthermore, the difference in lighting visual perceptions from different age and gender is also considered.
Researcher developed the questionnaire of lighting perception by using Semantic Differential Method and recruited 40 participants with different age and gender to join the research. In the experiment, participants will be exposed to different LED lighting conditions for further evaluation.
Results reveal that, age and gender would influence the lighting perceptions significantly. In the same lighting condition, male participants tend to feel the lighting is more intense then female, and female participants tend to feel the lighting is less glare, more relax and pleasant then male. On the other hand, participants who age between 50 to 65 years old thought the lighting is brighter, more vivid, warm, intense and energetic then participants who age between 20 to 49 years old.
Furthermore, the illuminance and color temperature of lighting also influence the lighting perceptions significantly. In the increasing illuminance level, participants feel the lighting is more and more intense, vivid, bright, energetic, pleasant, and comfortable. In the decreasing illuminance level, participants feel the lighting is fewer glares. And, participants feel the most relax and warm when the illuminance is in 700 lx. In the increasing color temperature level, participants feel the lighting is more and more vivid, bright, and energetic. In the decreasing illuminance level, participants feel the lighting is fewer glares, warmer, and more relax.
This research also provided the suggestions of indoor lighting design for working and resting area through optimize response surface method and experimental verification. The lighting combinations of illuminance which ranges between 700 lx and 900 lx and color temperature which ranges between 4000 k and 6500 k could be applied in the working area, since those lightings could make people feel brighter, more energetic, pleasing, and comfortable. Besides, the lighting combinations of illuminance which ranges between 650 lx and 900 lx and color temperature which ranges between 3000 k and 4000 k could be applied in the resting area, since those lightings could make people feel warmer, more relax, pleasing, and comfortable.

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