| 摘要 |
1. A surveying system for surveying an object, characterised in that the object (2) has two retroreflectors (3, 4) arranged at a known spacing, and in that a surveying instrument (1) is provided including a light source (5), a video camera (7, 8) and a means (9) which carries out the surveying by means of two image points (3a, 4a) which are defined by light reflected by the retroreflectors (3, 4). |
