| 摘要 |
Scanning apparatuses (100; 200) are proposed for scanning bar codes (120; 220) applied to documents (110; 210), which in each case have a reflector arrangement (140, 150, 160, 170; 141, 151, 161; 152, 162; 165; 142, 143) which comprise either a variable reflection element (140; 141; 142, 143) or a light guide system (250, 251, 252; 253, 255; 254) which serves to deflect the beam path of the electromagnetic radiation emitted by a radiation source (130) or an illumination device (230, 231; 232, 233), in the document plane along a line substantially perpendicular to the feed direction of the document (110; 210), or to capture it, and to relay it to a detector (280). In combination with the feed motion, the line-by-line scanning of the document (110; 210) along the different measuring tracks on the basis of the repeated deflection of the beam path by means of the variable reflection element (140; 141; 142, 143) or the repeated sequential relaying of the scanning beam by the light guide arrangement (250, 251, 252; 253, 255; 254) then results in reasonably priced and compact scanning apparatuses (100; 200), since the redundant radiation sources (130; 230) and detectors (180; 280) can be omitted.
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