【摘要】 B样条曲面的特点决定了其在汽车灯具设计方面能够被广泛应用。本文首先简介了 B样条曲面的数学原理及其特点 ,然后结合作者开发的应用于自由曲面反射器 FFR (Free Form Reflector)前照灯设计的程序 ,介绍了程序内容和验证方法 ,最后总结了 FFR的设计方法及步骤。更多还原

【Abstract】 Considering the air dynamics and the automotive style,the motor is streamilne and the fixed height is getting lower and lower.The optical requirement is higher because of the high speed.Obviously the traditional headlamp such as paraboilc type can’t satisfy this requirement.Several new design methods were developed in order to solve these problems.One of the most remarkable is free form reflector (FFR).It has clear and smooth lens and the reflector achieves the optical functions.FFR is a complicated optical surface.The mathematical principle of B\|spline surface and its characteristics are presented in this paper.Then,combining with the author′s special work of a software program about the design of FFR,some details and its validation method are introduced.The paper ends with design method and the flow chart.更多还原