作为新一代照明光源LED照明技术已经有了长足的发展，但单颗LED并不能满足正常的照明需求，想达到所要的照明效果通常采用多个LED组合。LED组合有各种形式，利用tracepro对4种LED平面阵列形式，即：3×3方形阵列、3-6同心圆阵列、阿基米德螺线阵列以及1-8圆形阵列进行了详细的光学分析。在满足照明要求的条件下，通过对比找到一种最优化的设计，发现1-8圆形阵列效果最好，所占面积最小，从而可以减少材料的浪费，进一步提高LED照明的性价比，为LED照明的普及提供设计上的借鉴。

The lighting technique of LED has experienced substantial progress. However, a single LED cannot meet the demand for the normal lighting. LED combination is usually adopted to achieve the desired lighting effects. The forms of LED combination are varied. A detailed optical analysis on four forms of LED planar array is taken by using Tracepro, which are 3×3 square array, 3-6 concentric array, Archimedean spiral array and 1-8 circular array. By the comparison, which find that 1-8 circular array is the best optimal design to reduce the waste of material and further improve the cost performance of LED lighting under the conditions of meeting the lighting requirements. A reference can be provided for the popularity of LED lighting.