Patent ID: 6421158
Filing Date: 2002-07-16
Classification: G02B,H04N

Abstract:
An image scanning device with an optical scanning module for scanning an image of a reflective document by incorporating with a first light source or a transparent document by incorporating with a second light source, comprising:a first focusing lens having a light receiving inlet and a light projecting outlet; a second focusing lens having a light receiving inlet and a light projecting outlet, the second focusing lens being arranged at an angle with respect to the first focusing lens; an image sensing module arranged facing to the light projecting outlets of the first focusing lens and the second focusing lens; a reflective optical path comprising a plurality of light reflection mirrors arranged in the optical scanning module; a transparent optical path comprising a plurality of light reflection mirrors arranged in the optical scanning module; and a rotatable reflection mirror arranged in the reflective optical path and the transparent optical path, rotatable by a driving device to a first reflection position or a second reflection position; when scanning the reflective document, the rotatable reflection mirror is rotated to the first reflection position in order to reflect a light beam projected from the first light source to the image sensing module through the reflective optical path and the first focusing lens; when scanning the transparent document, the rotatable reflection mirror is rotated to the second reflection position in order to reflect a light beam projected from the second light source to the image sensing module through the transparent optical path and the second focusing lens.