| 摘要 |
<p>Coherent optical reading of lines with series of symbols and reflecting and/or transparent symbols carrier provided with adjustment and reading beam bundles. The purpose is to reduce the complexity of the optical-electronic equipment of reading and adjusting. A subsequent automatic adjustment is carried out during the actual reading by mostly optical means. The lines to be read and the reading window are maintained in parallel. The symbols carrier is adjusted in parallel to the reading window during the reading by collimated adjusting beam bundles working independently of the reading beam bundles. The adjusting beam bundles are directed to the reading window in front of the carrier at a vertical angle.</p> |
