| 摘要 |
<p>Scanning device for optically scanning symbol codes, such as bar codes, comprising a laser source (1) for producing a scanning beam (10), a detector (4) for detecting light backscattered by the scanned symbol codes, first (6) and second (7) rotatable deflection means for both transmitting and deflecting the scanning beam so as to generate a scanning pattern (13), and drive means (20, 23) for rotating the first (6) and second (7) deflection means around a first (19) and second (24) axis of rotation, respectively, in which scanning device the scanning beam (10) when impinging upon the first deflection means (6) does not coincide with at least one of both axes of rotation (19, 24). <IMAGE></p> |
