The invention relates to a
system and a method for measuring vision of a variable
optical axis. The measuring
system comprises a substrate, a camera, a rotary
prism device and a computer, wherein the computer is connected with the camera and the rotary
prism device respectively; the camera is arranged on the substrate through a camera adjusting mechanism; the rotary
prism device is fixed on the substrate and aligns to the camera in the axial direction; an imaging plane of the camera and a prism plane of the rotary prism device are parallel to each other; and the rotary prism device comprises a prism capable of rotating in a complete cycle. Compared with the prior art, high-resolution target images can be collected by the camera under various
optical axis pointing states respectively by sufficiently utilizing accurate pointing characteristic and wide-field scanning capacity of the rotary prism, the imaging view field and measuring range of the
system can be enlarged obviously, relatively high imaging resolution and three-dimensional measurement accuracy are realized, and simultaneously, the integration and economical efficiency of
system structure design also can be guaranteed.