Patent ID: 6597441
Filing Date: 2003-07-22
Classification: G02B,H04N

Abstract:
An apparatus adapted to be used in manufacturing an image scanning apparatus for calibrating a reflective lens on a carriage, comprising:a fixing unit for fixing said carriage; three point light sources located at three lined-up positions respectively, for respectively emitting point light beams to be transmitted along corresponding one of predetermined light paths of said image scanning apparatus into said carriage and pass out of said carriage from one end of the carriage; and a calibrating device, having, at a first distance from said end of said carriage, a first set of three projective points obtained from said three point light beams passing out of said end of said carriage, and a first set of three calibrating points corresponding to said three point light sources, and having, at a second distance from said end of said carriage, a second set of three projective points obtained from said three point light beams passing out of said end of said carriage, and a second set of three calibrating points corresponding to said three point light sources, for matching each of said projective points on said calibrating device with a corresponding one of said calibrating points by adjusting an angle and a position of said reflective lens on said carriage so as to achieve a calibrating function.