| 摘要 |
<p>The present application relates to a hand held device (1) for emitting a laser beam (8) , the device comprising a laser source (2) having a power rating of at least 10 mW, an internal power supply (3) adapted to supply power to the laser source, and at least one optical element (7) for manipulating, in use, a beam (3) produced by the laser source.</p> |
