Measuring device with telecentric imaging front and rear units used in surveying objects, has front unit formed as double type, in which every single line contains imaging system and deflection system

摘要

The measuring device has a front unit formed as a double type, in which every single line contains an imaging system and a deflection system. The imaging system comprises a concave mirror (S1), while the deflection system comprises two planar mirrors (S2,S3).