A reciprocating laser light deflector for optical bar code readers

摘要

A combination of a flexible blade 16 of material which displays the phenomenon of piezoelectricity - this blade being provided with a mirror surface 17 on at least one part, and being made to vibrate in a reciprocating manner by an electrical generator connected to it - and a laser generator 1 produces a coherent light scanning line on a reading surface 18. IMAGE