| 摘要 |
A scanning apparatus is provided, which includes a medium (14) attached to a surface of a fixed, hollow cylindrical segment (12), the fixed, hollow cylindrical segment having a first longitudinal axis (16), a rotational radial laser beam rotating around the first longitudinal axis and arranged to scan said medium, and a light sensitive detector (20) having a light acceptance direction along a second axis coinciding with the first longitudinal axis of the cylindrical segment.
|
