Automatic swing door and sensor

Sensor (300) comprising a scanning unit (308) producing a scanning field, where the scanning unit (308) comprises a laser scanner (311, 312, 310) that emits light pulses that are evaluated according to the Time of Flight principle, the laser scanner comprises a rotating mirror (310) that has at least two facets that are inclined differently to the rotational axis (R) of the rotating mirror (310), where the light pulses are deflected at the mirror facets (320), where a series of sent pulses on a mirror facet while the mirror is rotating by a predefined angle-facet sweep- and thereby produces a curtain, where the sensor furthermore comprises a door controller interface (340) to provide information in order to trigger different door functions on a door controller, further comprising a detection determination unit (314) that defines a detection zone (26, 28, 126, 128) within the scanning field, where a detection of an object within the detection zone (26, 28, 126, 128) leads to a certain output on the door controller interface (340) to trigger a specific door function, characterized in that the detection determination unit (314) is embodied to execute a first evaluation step, where a first set of measurements of pulses is evaluated, where the first set of measurement contains at least some measurements of the pulses that are accumulated over at least two facet sweeps where the pulse emission is triggered in a way that a plurality of pulses are shifted with regard to the angular mirror position in a way that they have shifted deflection angles, in subsequent facet sweeps, and where the detection determination unit is embodied to execute a second evaluation step, where the second set of measurements is evaluated, where the set of measurements contains measurements of only one facet sweep of the second facet.