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一块可绕面内两个相互正交转轴偏转的平行玻璃板所组成的剪切板,目前已见应用于散斑剪切干涉和信息处理等技术上。这些应用都是基于把剪切板置于成象系统中,能偏移光线传播方向这一原理.在本文实验中,偏转剪切板,并让扩束相干光通过它,就可沿转轴相垂直的方向上获得线性增加的光程补偿,从而解决全息干涉计量中干涉条纹定级和全息
A shear plate consisting of parallel glass plates which can be rotated around two orthogonal axes of rotation in the plane has been used in technology such as speckle shear interference and information processing. These applications are based on the principle that the shear plate is placed in the imaging system to shift the direction of light propagation.In this experiment, the shear plate is deflected and the coherent beam of expanded beam is passed through it, Vertical direction to obtain a linear increase of the optical path compensation, so as to solve the interference hologram interferometry grading and holographic grading