OPTICAL SCANNING APPARATUS

摘要

An optical scanning device is provided to read a barcode attached to tray goods, which contain goods on a tray, surely by including a multi-head scanner capable of guaranteeing 360-angular degree scanning. A scanner scans light output from a light source and a mirror reflects scanning light. A first window outputs the scanning light reflected from the mirror by using a first scanning pattern. A second window outputs the scanning light reflected from the mirror by using a second scanning pattern different from the first scanning pattern. A line extended from the second window crosses the line extended from the first window. The second scanning pattern output through the second window includes a first pattern(SHDL) output in parallel to the first window and a second pattern(SHTL) output to the first window from an upper side to a lower side.