汽车灯光源的优化设计

The optimizing designal model of linear luminaire of car light

从几何光学的观点研究车灯线光源长度的优化设计问题.我们得到了线光源上P点与测试屏AB方向上U点及反射T点的关系(命题1)。由此我们建立了数值优化模型并得到线光源的最优长度为3.8148毫米。最后基于光的可逆原理,采用数值模拟方法验证了模型和结果合理。

In this paper, we discuss the optimization problem of the linear luminaire of car light in the view of the geometric optical theory. We obtain the relation about how the number of valid point of incidence changes with different points on the linear luminiaire. On the basis of this result, an optimizing mathematical model is established. With the method of numerical calculation, the optimal length results in 3.8148 mm. Finally, applying the inverse of the travel of light, we verify that the design scheme and the result are reasonable.