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Abstract

A sequential color scanner capable of generating both two and three dimensional moving color images has only one x- and y-deflection channel. The system includes first, second, and third optical signal generators for generating a first, second, and third optical signal, respectively. Each optical signal is characterized one of the three primary colors. The first, second, and third light signals are blue, green, and red, although not necessarily in that order. The first optical signal is generated along an optical axis. First and second beam combiners direct the second and third optical signals, respectively, along the optical axis. A first optical deflector deflects the optical signals in a first plane, and a second optical deflector for deflecting the optical signals in a second plane that is orthogonal to the first plane. First, second, and third modulators modulate the intensity of the first, second, and third optical signals, respectfully. A controller supervises each of the first, second, and third modulators so that the optical signals are generated in a pulsed, repeating sequence in accordance with an index that is counted by an index counter implemented in a controller. The controller also supervises modulation of the first and second optical deflectors so that the light signals are directed to predetermined coordinates. A time delay .tau. is introduced between optical signals for enhancing the sharpness of the image by assuring that the optical deflectors modulate only one light signal at a time.

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