| 摘要 |
<p>The method essentially consists in delimiting the periphery of a work station in which a laser emitter (3) operates with at least one wall (4) preferably made of a transparent synthetic plastics resin, in detecting the illumination within the interior of this wall (4), in comparing the intensity of this illumination with at least one first predetermined threshold value (Vmax), and in de-energising the laser emitter (3) whenever the detected value of the intensity of illumination exceeds the said threshold value (Vmax).</p> |
