Patent ID: 7308172

Claim:
System for reading data stored on an information carrier ( 1201 - 1301 ), said system comprising : a waveguide ( 1203 - 1303 ) comprising a first surface ( 1207 - 1307 ) and a second surface ( 1208 - 1308 ), an array of apertures ( 1202 - 1302 ) placed on the side of said first surface for generating a first light beam from an input light beam ( 1204 - 1304 ), first reflection means ( 1209 - 1309 ) placed on the side of said second surface for generating a first reflected light beam from said first light beam, a reflective phase-modulator ( 1206 - 1306 ) placed on the side of said first surface for generating a phase-modulated light beam from said first reflected light beam, second reflection means ( 1210 - 1310 ) placed on the side of said second surface for generating a second reflected light beam from said phase-modulated light beam, said second reflected light beam being intended to scan the information carrier ( 1201 - 1301 ), a detector ( 1205 - 1305 ) for detecting said data from an output light beam generated by the information carrier ( 1201 - 1301 ).