CAJ | 학술논문

提出一种由平面L ED阵列与高漫反射率自由曲面构成的间接照明方式。基于L ED光源与理想漫反射表面的朗伯特性，构建照明系统的数学模型。根据目标平面预期的光强分布，建立一组微分方程，利用数值方法求解得到漫反射自由曲面的面形轮廓，通过光学软件对该漫反射光源系统实体模型进行非序列光线追迹仿真，模拟结果显示检测区域辐照均匀度达到90％以上，验证了该方案设计均匀照明光源的正确性与有效性。
제출일충유평면L ED진렬여고만반사솔자유곡면구성적간접조명방식。기우L ED광원여이상만반사표면적랑백특성，구건조명계통적수학모형。근거목표평면예기적광강분포，건립일조미분방정，이용수치방법구해득도만반사자유곡면적면형륜곽，통과광학연건대해만반사광원계통실체모형진행비서렬광선추적방진，모의결과현시검측구역복조균균도체도90％이상，험증료해방안설계균균조명광원적정학성여유효성。
An indirect illumination pattern with flat LED array and diffuse reflection freeform surface was proposed .Based on the Lambertian characteristic of LEDs and ideal diffuse sur-face ,a mathematical model was constructed .A set of differential equations were established according to the expected energy distribution on the target plane .Through solving these equa-tions numerically ,the outline of the diffuse surface was obtained .By importing the entity model of the diffuse reflection illumination system into optical software to perform non-sequen-tial ray tracing ,the simulation result show s that the irradiance uniformity of the detection area is above 90% and demonstrates that the proposed method is correct and effective .