Patent ID: 6587246
Filing Date: 2003-07-01
Classification: G01S,G01V,G02B,H01Q

Abstract:
Apparatus for scanning input radiation from a scene and for generating output radiation to form an image at a curved detector array comprising;a rotatable reflective plate, forming an entrance pupil to the apparatus, for receiving and reflecting input radiation, the reflective plate having an axis of rotation passing substantially through the centre of the plate, wherein the axis of rotation is inclined at a non-zero angle &thgr;a to a direction parallel with or orthogonal to the normal to the reflective plate at the centre of rotation, a rotor for rotating the reflective plate, and a focussing element for producing an image at the detector array, wherein converging effects of the focusing element and the rotatable reflective plate co-operate with the curvature of the detector array to focus the image onto the detector array.