Patent ID: 8466407

Claim:
An optical system, comprising: a non-spherical dome that is symmetric about an axis of symmetry; a two-axis seeker comprising, an outer gimbal that rotates around a first axis, said dome axis of symmetry coincident with said outer gimbal first axis; an inner gimbal on the outer gimbal, said inner gimbal rotating around a second axis to point an optical axis in a multi-dimensional space defined by said first and second axes; receiver optics on the inner gimbal that receive optical radiation in a field-of-view (FOV) along the optical axis; and a sensor optically coupled to the receiver optics; an optical corrector comprising an aspheric transparent arch having an optical corrector shape responsive to a shape of the dome, said arch mounted on the outer gimbal within an optical path between the dome and the receiver optics as the seeker slews; a pair of side skirt baffles mounted on opposite sides of the transparent arch on the outer gimbal, said side skirt baffles covering the sides of the transparent arch; and an annular objective baffle mounted on and around the receiver optics on the inner gimbal and between the pair of side skirt baffles, said objective baffle extending forward of or radially from the receiver optics without interfering with the receiver optics' FOV and without interfering with the transparent arch as the inner gimbal rotates.