The invention relates to a device for reading coded information, comprising illumination means, means for picking-up a luminous signal diffused by an illuminated support containing coded information, means for detecting the luminous signal intended to generate an electrical signal that is proportional...http://www.google.ca/patents/US20020056754?utm_source=gb-gplus-sharePatent US20020056754 - Device and method for reading coded information, and device for detecting a luminous signal diffused by a support containing coded information
