| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic theodolite capable of satisfying a requirement in geodesy. SOLUTION: This tachymeter telescope is equipped with at least one 3rd sensor device S1, 21 or 27 for automatic target detection by one processing unit for plural surface sensors with angle measurement 27 as another evaluation unit. In the telescope, all the collimation axes of sensor devices 19, 20, 23 and 21 are aligned to form one common action axis A, and also the radiated and incident light flux of an image processing unit 27 and a distance measuring compound material 23 to the sensor devices 19, 20, 23 and 21 have coaxial action.
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