New design of turning composite parallel splitting prism

In order to increase the lateral shearing distance when light transit the parallel splitting prism,as well as facilitate the path building of rays in the experiment,the prism design was optimized based on the prism light scattering beam principle and Fresnel formula and a new kind of turning composite parallel splitting prism was obtained.Analytical and experimental results prove that the lateral shearing distance is extended accompanying with deflecting function if the prism is with high transmissivity,which is valuable and practical.