Optical record cards

OPTICAL CARD TO STORE INFORMATION IN A RECTANGULAR FORMAT THAT INCLUDES: A LAYER THAT HAS AT LEAST ON ONE OF ITS SIDES RELIEFS ON THE SURFACE THAT FORM AN INFORMATION SURFACE OPTICALLY READABLE BY A MACHINE; AND A LAYER OF PROTECTION YUXTAPOSED ON THE PREVIOUS. BOTH LAYERS ARE TRANSMITTERS OF A SELECT RANGE OF ELECTROMAGNETIC RADIACTIONS USED IN THE OPTICAL READING OF THE INFORMATION CONTAINED ON THE SURFACE. GENERALLY, THE INFORMATION SURFACE HAS A SPIRAL AND / OR CONCENTRIC FORMAT SO THAT THE INFORMATION CAN BE READ WHEN THE CARD TURNS AROUND AN AXIS.