Which component in a lidar unit is responsible for emitting the laser pulse?

The laser transmitter plays a crucial role in a lidar unit as it is responsible for emitting the laser pulse. This component generates the high-intensity light that is directed toward the object being measured. When the pulse hits an object, it reflects back to the lidar unit, where other components, such as the receiver unit, process the returned signal to determine the distance, speed, and other relevant information about the object.

The lens system typically helps to focus and direct the emitted pulses but does not generate the pulse itself. The receiver unit is designed to capture returning signals, while the calibration system ensures that the lidar is functioning accurately but does not have any role in pulse emission. Therefore, understanding the function of the laser transmitter is key to grasping how lidar technology operates effectively in speed detection and other applications.