摘要
本文介绍了一种利用傅立叶频谱测量球面透镜、柱面透镜及环曲面透镜单色光焦距的新方法,这种新方法不需要高精度的平行光管,用激光器作为光源,仪器调式简单,测量结果可靠,测量精度可达0.3%。如果采用光电扫描及微机处理,这种方法还可以实现自动化测量,而且可以测量不可见光工作情况下的透镜焦距。
Using Fourier spectrum, a method for testing monochromatic focal length of spherical lens, cylindrical lens and toric lens is given. There is no need for a high—accuracy collimator. Using laser as a light source, the device is simply adjusted with reliable results. The precision can reach to 0.3%. If the photo—scanning technique and personal computer are used, the focal length can be automatically measured and the focal length of inviolable light can also be measured with the method given.
出处
《光学技术》
CAS
CSCD
1992年第2期31-33,共3页
Optical Technique
