Patent ID: 7530690

Claim:
A device for corrected acquisition of the shadow of an ophthalmic lens ( 103 ) possessing one or more marks (PC), the device comprising: receiver means ( 121 , 114 ) for receiving said ophthalmic lens; on either side of said receiver means, firstly lighting means (S) for illuminating the ophthalmic lens ( 103 ) installed on said receiver means, and secondly acquisition means ( 122 , 125 , C) for acquiring the shadow of said ophthalmic lens illuminated by the lighting means (S); measurement means ( 5 , 124 , C) suitable for measuring the optical deflection power exerted by the ophthalmic lens installed on said receiver means on at least one light ray of said lighting means (S) and for delivering a signal representative of said deflection power; and an electronic and computer system including geometrical correction calculation instructions for deducing from said measured deflection power a corrected shape for at least a portion of the shadow of the ophthalmic lens as perceived by the acquisition means ( 122 , 125 , C).