Looking into each lens is a bit like peering directly into a projector.
凝视透镜有点像直接窥进投影仪。
Each lens consists of an outer lens with a corrective distance prescription, and a flexible inner lens.
每一个镜片包含一片校正过距离的外镜和一片可变焦的内镜。
It is assumed that the object distance and the incident height of each lens do not change with temperature.
推导过程中假设物面位置不随温度发生变化,并且忽略分离薄透镜组中各组分上光线入射高度随温度的变化。
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