摘要
介绍一种根据光栅自成象效应产生的莫尔条纹来准直光束和测量透镜焦距的新方法,该方法具有设备简单、调整方便、精度较高等优点。
The paper presents a new method using the self-imaging effect of a grating for collimating light beam and measuring the focal length of lens. The advantages of the method are simple scheme and easy of adjustment and higher accuracy.
关键词
莫尔技术
焦距
透镜
测量
准直光束
talbot effect
moire technique
focal length
collimating
