基于反转光楔和泽尼克多项式的共形光学设计

采用一对反向旋转的累斯莱棱镜可以实现对目标视场的动态扫描,并应用一对内表面为泽尼克边缘矢高表面的透镜对共形光学整流罩引入的主要像差进行校正,剩余像差则由累斯莱棱镜内表面进行补充校正.设计实例中,通过比较光学系统校正前后的成像质量以验证这种校正方法的有效性.

Conformal Optical Design Using Counterrotating Wedges and Zernike Polynomial

Two counterrotating Risley prisms and two lenses are used to correct the dynamic aberrations.The inner surfaces of the two prisms and the two lenses are described by Zernike Fringe polynomials.The scan of the field of regard is achieved by counterrotating the Risley prisms about the optical axis.The large amounts of aberrations are corrected by the two lenses and some residual aberrations are corrected by the Zernike Fringe Sag surfaces.The performance after correction in terms of Zernike aberrations and RMS spot size versus FOR angle is reported by an example.