Apparatus for producing a distortion-free two-dimensional image of a scanned object

Claim 1

An optical device for scanning a predetermined surface which is defined by first and second axes that are perpendicularly arranged with respect to each other, and for creating a two-dimensional image on said surface, said device comprising: means for emitting a light beam in a predetermined direction; first means for deflecting said light beam onto a first plane which is sectioned parallel to said first axis; first means for refracting said light beam deflected by said first deflecting means in such a fashion that all deflected directions of said light beam passed through said first refracting means become parallel to one another; second means for deflecting said light beam refracted by said first refracting means, on a second plane which is sectioned parallel to said second axis, the positional relationship of said second plane with respect to said second axis, along the direction of said first axis, being determined based upon a deflection angle of each of said deflected directions of said light beam at said first deflecting means; and second means for refracting said light beam deflected by said second deflecting means on said predetermined surface.