Method and apparatus for scanning in a bow-tie pattern, where such pattern is effectuated by either directing a beam or aiming a laser. Methods are provided for correcting errors in movement of the beam. One such method includes the use of a calibration grating on a recording media, with the data...http://www.google.com/patents/US5811795?utm_source=gb-gplus-sharePatent US5811795 - Bow-tie laser scan trace using dynamic laser positioner
