| 摘要 |
<p>PURPOSE:To read out bar code label sticked to plural directions by forming an optical system group consisting of a reflector and a condensing optical system. CONSTITUTION:When an article 1 is moved in an arrow 3 direction, a laser beam is converted at its direction by a reflector 14 and condensed by the optical system 15, so that the upper surface of the article is scanned and the bar code of a label sticked to the upper surface can be read out. When the article 1 located on a position crossing the laser beam, a laser beam condensing point 9 scans the lower surface of the article 1, so that the bar code of the label sticked to the lower surface of the article 1 can be read out.</p> |
