A non-contact light beam scan system small enough to fit into a hand holdable wand, pen or calculator size terminal incorporates a novel scan element which can scan at rates of ten to hundreds of scans per second in one or two dimensions. The device is immune to low frequency vibrations and can scan...http://www.google.fr/patents/US6118569?utm_source=gb-gplus-shareBrevet US6118569 - Ultra compact scanning system for a wide range of speeds, angles and field depth
Ultra compact scanning system for a wide range of speeds, angles and field depth
