The optical distance measurement is based on the triangulation principle. With this geometric method, the distance to the object is measured by accurately measuring angles within triangles.
The PowerBeam emits a light beam to the object; the object reflects this light beam back. The reflected laser beam is then recaptured by a light-sensitive receiver in the sensor, the multi-pixel array.
Depending on the distance between the sensor and the object, the reflected light hits different positions on the multi-pixel array: If the object is close, there is a large change in angle. If it is further away, there is a smaller change in angle.
By observing the angular relationship and finding the position of the light spot on the receiver, the precise distance of the scanned object to the sensor is determined. This calculation is made with the help of a built-in microprocessor and corresponding software algorithms.
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