Abstract: A method for reducing motion blur in a digital image is disclosed. An embodiment of the method comprises increasing the magnitude of the amplitude of the signals in a preselected set of spatial frequencies of the image in the direction of the motion blur.

Abstract: First and second elongate curved reflecting surfaces positioned in non-parallel, spaced apart relation collect light from an elongate light source and direct it onto a scanning area. One edge of the first curved reflecting surface is positioned adjacent the light source and the opposite edge is positioned adjacent the illuminated scan area so that the first curved reflecting surface extends from about the light source to about the illuminated scan area. The second curved reflecting surface is positioned in opposed spaced-apart non-parallel relation to the first curved reflecting surface such that the distance separating the reflecting surfaces at the light source is less than the distance separating the reflecting surfaces at the end adjacent the illuminated scanning area. An elongate planar reflecting surface is positioned adjacent the second curved reflecting surface so that it is substantially perpendicular to the illuminated scan area.

Abstract: A lens assembly is positioned between an illuminated scanning area and a detector. A multiple reflecting assembly positioned between the lens assembly and the illuminated scanning area defines a folded light path between the lens assembly and the illuminated scanning area. A prismic reflecting assembly is movably mounted between the lens assembly and the multiple reflecting assembly, so that the length and direction of the folded light path can be changed by moving the prismic reflecting assembly to align and focus the image of the illuminated scanning area on the surface of the detector.