Sun Ching-Cherng, Lee Tsung-Xian, Ma Shih-Hsin, Lee Ya-Luan, Huang Shih-Ming
Institute of Optical Sciences, National Central University, Chung-Li, Taiwan.
Opt Lett. 2006 Jul 15;31(14):2193-5. doi: 10.1364/ol.31.002193.
A novel LED modeling algorithm for precise three-dimensional light pattern simulation is proposed and demonstrated. We propose to use normalized cross correlation to verify the validity of the simulation in one-dimensional intensity patterns as well as two-dimensional irradiance patterns in various midfield distances and to provide feedback to achieve a successful model. The model is demonstrated to obtain an average of 99% in normalized cross correlation between the simulation light pattern and experimental measurement for a truncated inverse pyramid LED.
提出并演示了一种用于精确三维光图案模拟的新型LED建模算法。我们建议使用归一化互相关来验证在各种中场距离下的一维强度图案以及二维辐照度图案中模拟的有效性，并提供反馈以实现成功的模型。对于截顶倒金字塔形LED，该模型在模拟光图案与实验测量之间的归一化互相关中平均达到99%。
