白光有機發光二極體特用照明之光場分佈實驗研究

The Experimental Investigation of the Optical Field Distribution for Special Lighting Application

陳立杰(Li-Chieh Chen)

指導教授 ： 楊恆隆

國立臺北科技大學/電資學院/光電工程系研究所/碩士(2012年)

摘要

本實驗是探討白光有機發光二極體(WOLED)元件應用於特用照明上的半球面光場分佈及平面照度分佈函數。首先建立半球面光場分佈量測系統與平面照度分佈量測系統，分別藉由雙軸旋轉台與單軸旋轉台搭配光偵測器與光功率計來進行半球面光場分佈與平面照度分佈之量測，並配合自行撰寫之LabVIEW儀控程式進行自動化量測。利用三個WOLED元件來達成特用照明，藉由改變WOLED元件之間的相對位置來改變其在特用照明上的半球面光場分佈與平面照度分佈。另外藉由一個白光發光二極體(WLED)面光源當作比較對象，同樣是利用三個WLED面光源來達成特用照明，藉由將WOLED元件與WLED面光源在特用照明上作比較，如此即可知道WOLED元件與WLED面光源應用於特用照明上之差異。實驗結果顯示WOLED特用照明與WLED特用照明在某個特定傾斜角下，其半球面光場分佈之法線方向的光強度為最弱，愈偏離法線其光強度愈強且兩邊對稱，直到某個角度光強度才又減弱，此特性與蝙蝠翼光強度分佈之配光曲線非常相近，其可擬補在大角度時之光強度的不足，而WOLED特用照明則擁有較優良之配光曲線；而WOLED特用照明與WLED特用照明都擁有可調式受照區大小的特性，但在受照區的均勻度上，WOLED特用照明則擁有較均勻且範圍較大之受照區。

關鍵字

白光有機發光二極體 ； 面光源特用照明 ； 半球面光場分佈 ； 平面照度分佈

並列摘要

This thesis research is to experimentally investigate the hemispherical optical field and the planar illuminant distributions of the special lighting source consisted of three white organic light-emitting diodes (3-WOLED) with 10x10mm2 light-emitting area each. The optical field and the planar illuminant distributions of the 3-WOLED are expected to be adjustable by varying their relative angles among these WOLED to satisfy various lighting applications. The optical field and the planar illuminant distributions of the lighting source composed of three planar sources converted from single white LED (3-WLED) were also measured and analyzed for comparison purpose. Our experimental results show that the hemispherical optical field distributions of the 3-WOLED and 3-WLED with specific relative angles exhibit minimum intensity in normal direction and maximum intensities away from normal directions. These distinctive distribution profiles are similar to the so-called "bat-wing" distributions specified by general lighting applications.

並列關鍵字

White Organic Light-Emitting Diode ； special lighting of surface light ； hemispherical optical field distribution ； plane illuminance distribution

參考文獻

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