An image scanning apparatus is provided by (1) a platen on which an original can be placed; (2) a scanning device for scanning the original, which includes a lens for projecting the image of the original on an imaging plane; (3) an image sensor for sensing the image projected on the imaging plane which...http://www.google.de/patents/US4763200?utm_source=gb-gplus-sharePatent US4763200 - Image output apparatus
