The basic factors affecting collimating characteristic are off-axis magnitude, effective aperture and emission position on the focal plane of off-axis parabolic mirror.
影响离轴抛物镜准直特性的主要因素有离轴量，有效孔径和焦面出射点的位置。
2
After analysis and calculation, the testing performance and precision of the studied multi-spectral aperture-expanded collimating system could meet the design requirement demands perfectly.