the laser collimator not only has the advantages of existing ones, but also can be used to measure wavefront error with high accuracy interferometer.
此激光平行光管具有以前平行光管的优点,且可以与数字相移干涉仪对接,直接进行波前误差的高精度测量。
the principle of portable laser collimator is introduced in this paper and its laser device, psd signal processing circuits data acquisition are analysed in detail.