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一、已知主轴、光心的位置,入射和折射光线,确定透镜种类和焦点的问题。 例1.试用作图法确定图1中所示透镜的种类和焦点位置。
First, the position of the spindle and the optical center is known, and incident and refracted rays determine the lens type and focus. Example 1. Trial use as a map to determine the type and focus position of the lens shown in FIG.