A system and method for reading the information stored in holograms and other diffractive objects. The information is read by analyzing the diffraction pattern produced when a laser beam is focused onto a small spot on the object and scanned across the object. ...http://www.google.es/patents/US20030152274?utm_source=gb-gplus-sharePatente US20030152274 - Method and apparatus for reading and verifying holograms
Method and apparatus for reading and verifying holograms
Número de solicitud: 10/368,120 Número de publicación: US 2003/0152274 A1 Fecha de presentación: 14 Feb 2003 Patente emitida: US6832003 ( Fecha de emisión 14 Dic 2004)
