The plate to be processed is modulated by ronchi raster and after developing and fixing two dimensional coding photograph is made.
将要处理的图像底片经过郎奇光栅的调制、显影、定影后得到二维的编码片。
2
A measurement method of the large-aperture aspheric surfaces with the ronchi wonderful legal quantity the new technology was proposed.
提出了一种用朗奇法定量检测大口径非球面的新技术。
3
A new method for long focal length measurement is presented, which is accomplished by obtaining the Angle of moire stripe formed by Talbot effect of Ronchi grating.