Reichenbach distance meter
The Reichenbach distance meter or distance meter according to Reichenbach was a widely used instrument for optical distance measurement in the first half of the 19th century . It was invented around 1810 by the precision mechanic Georg Reichenbach in Munich and produced in the Mathematical-Precision Mechanical Institute by Reichenbach and Josef Fraunhofer . Production was transferred to the "Utzschneider and Fraunhofer in Munich" workshop around 1815, equipped with the best Fraunhofer lenses .
The measuring instrument is a preliminary stage of the geodetic universal instrument and, in addition to the Reichenbach threads built into the telescope eyepiece, has a precise height circle . This allows the measured incline distance to be converted to the horizontal distance.