立方反射镜失调特性的研究

结合理想坐标系下立方镜镜面微小倾斜后其三个平面法线坐标，利用刚体微量转动的反射法线向量公式，获得非理想立方镜反射矩阵；为了研究在光斜入射时镜面倾斜对出射光方向的影响，利用立方镜绕顶点旋转等效于光斜入射的方法，计算出光束夹角δ与单一镜面偏差角ε和立方镜旋转角θ之间的关系式；对于理想情况下的立方镜，利用几何光学可以证明出射光与入射光不但平行，而且过顶点作任意截面交于两光线所得的两个交点关于顶点对称，从而计算出立方镜绕顶点以外任意轴旋转造成出射光束相对原出射光的偏移量与旋转角关系式，理论计算值与实验数据吻合得很

The reflection matrix of non-ideal corner cube is obtained by using the reflecting normal vector equation of rigid body with slight rotation. In order to find the effects of dihedral angle errors on the emerging beam, the equivalent principle of corner cube rotation around apex is used to calculate the angle δ between the incident beam and the emerging beam as a function of dihedral angle errors ε and rotation angle θ of corner cube. For an ideal corner cube, the emerging beam is parallel to the incident beam and two intersections that any plane through the apex cuts the two beams must be synmetrical about the apex. After corner cube randomly rotates around apex, the relations between the rotation angle and offset of emerging beam comparing with the original are investigated theoretically and experimentally. The results are in good agreement. The making, adjusting and testing of the corner cube reflector including the measurement and calculation of the dihedral angle errors are presented.