薄透镜(thin lenses),在光学中,是指透镜的厚度(穿过光轴的两个镜子表面的距离)与焦距的长度比较时,可以被忽略不计的透镜。厚度不能被忽略的透镜有时会称为厚透镜。薄透镜的主要参数有焦距、色差、球差、折射率、口径等。
讨论了用薄透镜扩束时应遵从的规律。
Some laws obeyed by the beam expanding by use of the thin lens are discussed.
共轭法是一种较为准确和简便的测量薄透镜焦距的方法。
Conjugate method is an accurate, simple and convenient method to measure the focal distance of thin convex lens.
给出了一种利用透镜的球面反射像测量薄透镜的材料折射率的方法。
A method of surveying the index of refraction of thin lens material with the help of images made by spherical reflection is given.
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