Researches of splitting angle and splitting intensity ratio of OE double escape prism

In this paper,the splitting angle and the light intensity splitting ratio of o ray and e ray changing with incident angle are analyzed after non-polarized light penetrates the OE double escape prism.The result proves that the splitting angle changes 2α when the incident angle changes α.At the same time,the intensity splitting ratio doesn't remain 1:1,but presents to be a nonlinear relation.