研究生: |
洪郁茹 Yu-Ju Hung |
---|---|
論文名稱: |
高功率暖白光LED最佳化研究 Optimization of High Power Warm White Light Emitting Diode |
指導教授: |
林舜天
Shun-tian Lin |
口試委員: |
周賢鎧
Hsien-kai Chou 林寬泓 Kuan-hung Lin |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 機械工程系 Department of Mechanical Engineering |
論文出版年: | 2011 |
畢業學年度: | 99 |
語文別: | 中文 |
論文頁數: | 70 |
中文關鍵詞: | 螢光粉 、暖白光LED封裝 、發光效率 |
外文關鍵詞: | Phosphor, Warm white LED, Luminous efficiency |
相關次數: | 點閱:229 下載:0 |
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近年來LED ( Light emitting diode ) 照明發展快速,目前照明市場上的需求,高功率的暖白光LED將成為未來的趨勢。
本研究最大的目的在使用紅色及黃色兩種螢光粉體封裝多晶LED,製作高功率暖白光LED。首先,比較不同螢光粉塗布方式對於LED光學性質的影響,並探討螢光粉的微觀結構於封裝結構的影響,而選擇最佳之塗布方式;再來利用三種螢光膠調配變數來製作最佳化暖白光LED,並對所測得之色座標(x,y)、色溫以及發光效率做迴歸分析(Regression Analysis),所求得之相關係數(Correlation)來確認本實驗推測之變數是否為改變LED光學性質之參數,並歸納出多元一次迴歸方程式,利用此方程式可以推測未來若需不同光色的LED 應使用何種配膠方式最佳。
In recent years, the development of LED ( Light emitting diode ) lighting is rapid. Currently, the market demand for lighting, high power warm white LED will become the future trend.
The purpose of this study is to use red and yellow phosphor powder packaged of polycrystalline LED for making high-power warm white LED. First, the comparison of different phosphor coating method for optical properties of LED and phosphor particle size of the package structure, then choose the best coating method. Second, we use different methods to prepare phosphor with plastic for making the optimization of warm white LED , and then analyze the data by the regression analysis (Regression Analysis). The correlation coefficient is obtained to confirm whether this experiment suggested the establishment of variables to calculate the optical properties of LED. In the future, by using this equation, it could speculate about encapsulated method which is the best for different light color LEDs should be.
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