Apparatus and method for measuring distance

Apparatus (10) for distance measurement, having at least one transmission branch (14) with at least one transmitter (22, 24) for emitting modulated measurement radiation (16, 26, 36) in the direction of a target object (20), and with at least one reception branch (18 ) returning to receive (from the target object 20) measuring radiation (17, 44), and having a control and evaluation unit (28, 58) for determining the distance of the device to the target object (20), characterized in that the device comprises means which allow a measurement of distances with predetermined values ​​of the measurement uncertainty.