Apparatus for measuring an environment moving relative thereto by means of time-of-flight measurement of laser pulses (5 k,n) reflected thereon in a coordinate system, comprising: a first scanning unit (6 1) for emitting a first pulse train (4 1) of laser pulses (5 1,n) over successive deflection periods (AP 1,p) at a pulse repetition rate, wherein the laser pulses (5 1,n) which respectively fall within one deflection period (AP 1,p) are emitted in first scan directions (R 1,n) fanned out about a first scan axis (7 1) and thus respectively form, for each deflection period (AP 1,p), a first scanning fan (8 1) which they traverse with a predeterminable angular velocity profile (ω), and for receiving the corresponding laser pulses (5 1,n) reflected from first scan points (P 1,n) of the environment, at least one further scanning unit (6 k) for emitting an further pulse train (4 k) of laser pulses (5 k,n) over successive deflection periods (AP k,p) with the same pulse repetition rate, wherein the laser pulses (5 k,n) which respectively fall within one deflection period (AP k,p) are emitted in further scan directions (R k,n) fanned out about an further scan axis (7 k) and thus respectively form, for each deflection period (AP k,p), an further scanning fan (8 k) which they traverse with the same predeterminable angular velocity profile (ω), and for receiving the corresponding laser pulses (5 k,n) reflected from further scan points (P k,n) of the environment, wherein all scanning fans (8 k), seen in the direction of one of the scan axes (7 k), substantially overlap and an area of the environment in the overlap area of the scanning fans (8 k) that has already been scanned by a front scanning fan (8 1), seen in the direction of the scan axis, is scanned again by a rear scanning fan (8 k), seen in the direction of this scan axis, and a control unit connected to the at least one further scanning unit (6 k), which is configured to pivot the scanning fans (8 k) of each further scanning unit (6 k) relative to the scanning fans (8 k-1) of a scanning unit (6 k-1) which is respectively adjacent in a predetermined sequence of scanning units (6 k), by a pivot angle (λ k,k-1) depending on the pulse repetition rate and the angular velocity profile (ω) in such a way, that the further scan points (P k,n) coincide with the first scan points (P 1,n). a first scanning unit (6 1) for emitting a first pulse train (4 1) of laser pulses (5 1,n) over successive deflection periods (AP 1,p) at a pulse repetition rate, wherein the laser pulses (5 1,n) which respectively fall within one deflection period (AP 1,p) are emitted in first scan directions (R 1,n) fanned out about a first scan axis (7 1) and thus respectively form, for each deflection period (AP 1,p), a first scanning fan (8 1) which they traverse with a predeterminable angular velocity profile (ω), and for receiving the corresponding laser pulses (5 1,n) reflected from first scan points (P 1,n) of the environment, at least one further scanning unit (6 k) for emitting an further pulse train (4 k) of laser pulses (5 k,n) over successive deflection periods (AP k,p) with the same pulse repetition rate, wherein the laser pulses (5 k,n) which respectively fall within one deflection period (AP k,p) are emitted in further scan directions (R k,n) fanned out about an further scan axis (7 k) and thus respectively form, for each deflection period (AP k,p), an further scanning fan (8 k) which they traverse with the same predeterminable angular velocity profile (ω), and for receiving the corresponding laser pulses (5 k,n) reflected from further scan points (P k,n) of the environment, wherein all scanning fans (8 k), seen in the direction of one of the scan axes (7 k), substantially overlap and an area of the environment in the overlap area of the scanning fans (8 k) that has already been scanned by a front scanning fan (8 1), seen in the direction of the scan axis, is scanned again by a rear scanning fan (8 k), seen in the direction of this scan axis, and a control unit connected to the at least one further scanning unit (6 k), which is configured to pivot the scanning fans (8 k) of each further scanning unit (6 k) relative to the scanning fans (8 k-1) of a scanning unit (6 k-1) which is respectively adjacent in a predetermined sequence of scanning units (6 k), by a pivot angle (λ k,k-1) depending on the pulse repetition rate and the angular velocity profile (ω) in such a way, that the further scan points (P k,n) coincide with the first scan points (P 1,n).