| 摘要 |
An improvement for scanning apparatus used in a barcode device includes an anchor frame, a twist means located in the anchor frame and a driving means located at two sides of the twist means. The twist means includes a formed member made from a material of high elasticity coefficient such as silicon rubber or rubber. When the driving means is magnetized and generates a magnetic force to produce a corresponding force against a magnetic element, the formed member will be twisted. When the magnetic force is absent, the formed member will turn because of counter reaction force and the inertia thereof, and turns concentrically a reflection element located thereon for projecting light to the barcode of an object to be scanned.
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