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为了尽可能地提高光能利用率,大多数冷反光镜都设计成具有一次对称轴的非球面。图1表示几种照明灯用的反光镜形状,它们的特点是深而曲线变化陡,口径与高度之比超过1/2(球面反光镜则很少超过1/3)。如果按一般转
In order to maximize light energy efficiency, most cold mirrors are designed as aspheric surfaces with a single symmetry axis. Figure 1 shows the reflector shapes used for several lamps. They are characterized by deep and steep curves with a ratio of caliber to height of more than 1/2 (spherical mirrors rarely exceed 1/3). If you press the general turn