【摘要】 由于LED发射光强的逐渐提高,许多照明系统使用单颗LED作为光源就可以满足不同场合的需求。通过对LED的发光特性的分析,提出了一种以单颗LED作为光源的均匀照明透镜的设计。首先由Snell定律和能量守恒定律构建出满足设计条件的透镜的数学方程,运用MATLAB进行编程解出该方程,再使用Pro/E对求解出的坐标点进行拟合来得到透镜模型,最后用Trace Pro将得到的透镜模型进行光线追击,通过得到的照度图可知最终达到在规定区域内均匀照明的需求。更多还原

【Abstract】 With the increasing of emission intensity of LED,illumination system with a single LED light source can meet requirements in many fields. According to the characteristics of LED source,a method of lens design of LED uniform illumination was proposed. At first,a lens design equation by Snell’s law and the law of conservation of energy was formulated;and the result of the equation was solved by MATLAB. Then the profile curves were acquired by curve fitting of the coordinate spots with software Pro/E;so the lens model could be got. At last,the lens model was introduced into Trace Pro and rays were traced. Finally the uniform illumination at target area was obtained.更多还原