介绍了一种利用光栅的多缝衍射分光代替传统转角法的角度测量的微透镜焦距测量方法。
A new method of microlens focal length measurement by rotation method based on grating diffraction is introduced.
本文在改进的激光平板剪切干涉法基础上，提出了测量透镜焦距的一种新的实验方案。
A new experimental scheme of measuring lens focal length has been put forward on the basis of the improved laser plate shearing interference method.
本文描述了利用激光散斑测量透镜焦距的方法，并对该方法进行了原理分析和实验验证。
The method to measure the lens focus with laser speckle is described. The principle of this method is analysed and verified by experiment.
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