Lateral Shift Tolerance of Moving Cat′s-Eye Retroreflector and Inclination of Secondary Mirror
猫眼动镜横移误差容限及次镜倾斜分析

The basic principle of the moving-cat′s-eye interference spectrometer and three kinds of cat′s-eye retroreflectors were introduced.The lateral shift tolerance of the moving cat′s-eye retroreflector was analyzed systematically by means of phase error,and its formula was derived.Some data for the typical parameters of the above interference spectrometer was given.The effect of the inclination of the secondary mirror of the cat′s-eye retroreflector on the optical path difference was analyzed.A graph of the relationship,for the typical parameters,between the maximum additional optical path difference and the tilt angle of the secondary mirror of the cat′s-eye retroreflector was given.