System and method for selective scanning of an object or pattern including scan correction

摘要: A system and method for correcting a scan pattern of moving optical scanning (110) that scans an object or (130). gantry (120) moves the at constant rate in first direction. Using light source deflector, quickly sweeps beam direction orthogonal to motion by changing angle deflection deflector linearly with time. To compensate motion, includes second deflects determined as function velocity gantry. The deflected is focused on pattern. Accordingly, scanned along corrected line may also perform 'selected' 'look ahead/look behind' scanning.