Lesser-known examples of them include the barrel and the cushion, and they can be modeled by Zernike polynomials.
Lesser-known examples of them include the barrel and the cushion, and they can be modeled by Zernike polynomials. The five third order ones are the most common and are classified by the Seidel(*) scheme. Two of them are off-axis effects that result in a cloudy image and a cross shape, and are called coma and astigmatism respectively. For ten points, identify these non-idealities in optical systems.
Lesser-known examples of them include the barrel and the cushion, and they can be modeled by Zernike polynomials.
optical aberrations