STATIONARY HOLOGRAM SCANNER

摘要

The scanner has a hologram disc with hologram lenses peripherally arranged for deflecting a light beam and projecting it upon bar codes to be scanned. A light beam inciding device makes the number of light beams equal to the scanning directions for reading bar codes incide upon the different predetermined positions. The incider comprises a light transmitting rotating member having a number of surfaces arranged in a radially divided manner around the rotational axis. The surface are different in height in the axial direction and are parallel to the opposite light beam outgoing side. A motor rotationally drives the rotating member at the predetermined speed.