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1. A light detection and ranging (“lidar”) sensing device, comprising: a sensing light source device configured to radiate sensing light; a scanner device configured to pass the sensing light radiated by the sensing light source device toward a target and to reflect incident light reflected by the target and integrated with the sensing light source device; a light-receiving lens configured to transmit the incident light reflected by the scanner device; a light-receiving reflector configured to reflect the incident light passing through the light-receiving lens; and an optical detector on which the incident light reflected by the light-receiving reflector is incident, wherein: the scanner device comprises: a scanner reflector using a single surface to pass the sensing light radiated by the sensing light source device and to reflect the incident light reflected by the target toward the light-receiving lens, wherein the scanner reflector is integrated with the sensing light source device into a single optical module and is arranged to radiate sensing light from the sensing light source device inside thereof directly through the single surface of the scanner reflector toward the target without reflection; and a scanner driver connected to the scanner reflector and configured to rotate the scanner reflector, wherein the sensing light source device comprises: a scope tube integrated with the scanner reflector; a light source positioned within the scope tube to radiate the sensing light toward the target; and a light-transmitting lens device positioned on an output side of the light source and configured to collimate the sensing light radiated by the light source.
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