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.