In this paper

it's analysed and expounded the reason of the transverse image displacement in zoom system systematically

contrasted the effect on transverse image displacement of different contruction type and multiplying power of different cam-curve selection in zoom

system

provided the objective basis to track and surrey the premilinary type selection in zoom system design

put forward a effective method to rectify the transverse image displacement in zoom system applying in practical engineering

and produced a way to make the center error tolerance of component according to the transverse image displacement tolerance.