| 摘要 |
<p>The present invention refers to a system and a device (10) for alignment of at least one alignable plane with reference to at least one reference plane. The device includes a main part (11), a light source (18) and a number of contact points (21a, 21b, 21c), and the light source (18) is provided to emit a light beam (25) with a scattering angle in one plane.</p> |
