At present, some difficulties are encountered in measurement of longfocallength of lens.
目前,透镜长焦距的有效测量还存在一些难题。
2
In that case, Fourier transform system with longfocallength and high power lens and method of linear decision are proposed.
以肺癌细胞筛选为例,提出用长焦距、高倍率的傅里叶变换系统和线性判别处理。
3
Focallength is the important optical parameter of optical lens. It is valuable that methods based on Talbot effect and Moire technique are applied for measuring the longfocal of lens.