一、概述电影放映物镜的照明系统以及有些灯具(包括手电筒等)的反射面往往都用深度二次反射曲面。在这些系统中,光能分布均匀性非常重要。为此,往往对它需要作大量的空间光线计算。如图1所示,其物方孔径角U往往大于90°;而深度二次反射曲面(即孔径光阑)部分入瞳又在物面左边。现在很多计算程序缺乏计算这种条件的功能。为此,我们提出 First, an overview Film projection lens lighting system and some lamps (including flashlights, etc.) are often used in the surface of the secondary reflection of the surface depth. In these systems, the uniformity of light energy distribution is very important. To this end, it often requires a lot of space for light calculation. As shown in Figure 1, the object aperture angle U is often greater than 90 °; and the depth of the secondary reflective surface (ie, aperture stop) part of the entrance pupil is in the left side of the object. Many computing programs now lack the ability to calculate this condition. To this end, we propose