LED照明光源色溫對視覺感知意象購買偏好與滿意度之研究

目前LED光源已逐漸取代傳統光源運用在一般住宅照明，商業、工業照明上，LED光源較傳統光源優勢，其除環保節能外，更在於LED光色、色溫、演色性可變化以及壽命長，因此專家預測未來LED發光二極體將全面取代目前市面上的白熾燈泡與日光燈，成為照明光源的主流的可能性。未來光環境將是多彩變化的，人們對照明環境從照度「量」的發展日漸轉換為光分布、演色性及色溫等「質」的需求。本研究本於燈光設計中，光線的色彩是影響視覺意象最為強烈的要素，適當的燈光色彩可以營造舒暢的視覺感受，進而提升整體居住環境的品質。故以燈光光色對使用者的視覺感知心理層面的影響為本研究的重點；探討LED光源色溫度對視覺感知意象及分析大眾對LED光源色溫購買偏好與滿意度為主題。本研究第一部分是文獻研究，第二部分以語意差異法進行意象問卷研究，並借問卷瞭解光色滿意程度，所獲得之資料透過統計進行變異數分析，檢定彼此之間的各種差異情形，第三部分是以三張色溫圖片進行圖片色溫的滿意程度調查，第四部分對專家進行團體焦點法以瞭解購買者對照明光源色溫購買偏好度。本研究所獲得的成果首先為探討照明光源色溫與視覺感知語意的分佈情形；其次為瞭解大眾對照明光源色溫之購買偏好與滿意度情形；綜合以上結果，期盼能發揮LED光源的特性與優點，以符合大眾需求的適當光源，進而取代傳統照明光源，廣泛應用在一般住宅照明，商業及工業照明上。

關鍵字

照明光源、LED、色溫、視覺感知、意象、購買偏好

並列摘要

Currently, LED illumination sources have gradually replaced traditional illumination sources in typical residential, commercial, and industrial lighting. Compared to traditional illumination sources, LED has the advantages of environmental protection and energy efficiency, as well as LED light color, color temperature, variable color rendering, and long durability. Thus, experts predict that in the future LED (Light Emitting Diode) will completely supplant incandescent lamps and fluorescent lamps currently on the market, possibly becoming the mainstream illumination source. In the future, the light environment will be colorful and variable, as people’s demands for the illumination environment have gradually transformed from the “quantity” of illuminance to “quality” of light distribution, color rendering, and color temperature. This study is based on the fact that in lighting design, light color is the most important element that affects the visual image; suitable light color can create a comforting visual feeling and in turn elevate the overall quality of the living environment. Thus, the influence of light color on the user’s visual perception on the psychological level is the key focus of this study; to explore the effect of color temperature of LED illumination sources on visual perception image and to analyze the public’s purchasing preferences and satisfaction toward the color temperatures of LED illumination sources. The first part of this study is the literature review. The second part uses semantic differences to conduct questionnaire research on images, and the questionnaire is used to understand the extent to which users are satisfied with the light color; the obtained data undergoes statistical variance analysis to test for differences among them. The third part uses three color temperature pictures to survey the satisfaction for color temperatures of the pictures. The fourth part conducts focus group for experts to understand the preferences of users for illumination light color temperatures. The study results first include the exploration of the distribution of semantics in color temperature and visual perception of illumination sources, followed by the understanding of the public’s purchasing preferences and satisfaction in regards to the color temperatures of illumination sources. In sum of the above, it is hoped that the characteristics and advantages of LED light sources can be realized to provide suitable lighting needed by the public, in turn replacing traditional illumination sources for broad application to residential, commercial, and industrial lighting.