The cardinal point and cardinal plane play an important role in the geometrical optics and are widely used in modern photography and video technology.
透镜组的基点、基面在几何光学中占有重要的地位，并在现代摄影、摄象技术中得到了广泛应用。
The cardinal point and cardinal plane play an important role in the geometrical optics and are widely used in modern photography and video technology.
透镜组的基点、基面在几何光学中占有重要的地位，并在现代摄影、摄象技术中得到了广泛应用。
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