The Research of Rotatory Apparatus with Compound Wave Plates

The theory of rotatory apparatus with compound wave plates is analysed by using the matrix optics.The condition of the compound binary wave plate and ternary wave plate rotatory apparatus and the mathematic expressions of the magnitude of ratatory angle are gived.A example of application is also gave.The result shows taha the magnitude of roratory angle relates to the retardation of every wave plates and the included angle between their fast axes and X axis.