Patent ID: 6310730
Filing Date: 2001-10-30
Classification: F41G,G02B

Abstract:
An optical system, comprising:a curved window;an optical train including at least one optical element operable to alter an optical ray incident thereon;a movable optical train support upon which the optical train is mounted, the optical train support being operable to point the optical train along a plurality of directions, the plurality of directions including a z axis lying perpendicular to a reference plane having orthogonal x and y axes lying therein;an optical corrector disposed in an optical path between the window and the at least one optical element of the optical train, the optical corrector comprising a transparent body having an optical corrector shape responsive to a shape of the window and which is bilaterally symmetric about the z axis in a yz cross section and not bilaterally symmetric about the z axis in an xz cross section;a sensor disposed to receive the optical ray passing sequentially through the window, the optical corrector, and the optical train.