It may be used to test the on - or off-axis various wavelength wave aberrations, chromatic aberration and other optical performances of various magnification microscopic objective.
该仪器可以测定各种倍率物镜轴上、轴外多种波长的波面像差等光学性能参数。
2
Objective To determine digital X-rays radiography inherent magnification and calibrate the measuring tools in the machine.
目的旨在测量数字X线机的固有放大率，并对机器自带测量工具所测的放大率进行校准。
3
Objective To review the different ways a hand-held magnifier is used and its effect on magnification.