A system includes an optical system having a curved window with anamorphic
symmetry about a first plane and a second plane perpendicular to the first
plane. The window may be, for example, in a flight vehicle such as a
missile. An optical corrector is adjacent to a curved inner surface of the
window and has an optical corrector shape responsive to a shape of the
window. The optical corrector has anamorphic symmetry about the first
plane and the second plane. A sensor is disposed to receive an optical ray
passing sequentially through the window and the optical corrector.
