Telescope for surveying instruments, specifically for video tachymeter
DRIVE
October 31, 2001
The invention relates to a telescope for geodetic devices, which comprises an objective lens and means for generating separate beam paths for target acquisition or image capture and for distance measurement. In the beam path for target acquisition, a CCD camera with CCD matrix or a position-dependent, photoelectric receiver arrangement (quadrant photodetector) is provided in a first image plane of the objective lens. In a second image plane of the objective lens, a receiver for distance measurement is located. An evaluation device provided furthermore is connected to the CCD camera or the receiver arrangement for signal and/or image evaluation. The telescope comprises means (2; 10) for generating a third, a wide-angle beam path. Advantageously, for generating the wide-angle beam path, an additional objective lens cooperating with the objective lens is provided.
Discussion in the ATmosphere