Showing diffraction patterns by six-angular set-spectacle prism;

Analyzing characteristic of the cube-corner retroreflector applied to laser straightness measurement;

By vector analysis the rectangular angle error influence on characteristics of the beam of cube-corner retroreflector;

Then,the effect on the first-harmonic nonlinearity by the polarization properties of reflected light of the cube-corner retroreflector and axial rotation in the motion direction of the measurement cube-corner retroreflector is derived.

An innovative gain module is employed to improve the performance of heat-conduct cooled asymmetric laser,which consists of a Nd∶YAG rod pumped by a semicylidrically arranged LD array,and right-angle prism as the mirror,leading to a highly stable output with a high quality.

The automatic test of Corner Cube Reflector (CCR), Roof Prism and Right-angle Prism is achieved by calculating the wavefront got from the digital phase-shifting interferometer.