Patent ID: 8442082
Filing Date: 2013-05-14
Classification: G06F,Y02D

Abstract:
1. A control system for controlling a laser for irradiating an object with laser light to determine velocity and/or displacement of the object relative to said laser and for operating the laser at a reduced power consumption, said control system comprising: a power source arranged to supply power pulses to said laser for emitting incident radiation for incidence on the object; and a controller connected to the power source, wherein said controller is programmed to determine the velocity and/or the displacement of the object based on reflected laser light reflected from the object in response to the incident radiation, and to provide the reduce power consumption by controlling the power source to automatically stop the supply of the power pulses in dependence upon a power of a signal generated by an interaction between the reflected laser light and the incident radiation, wherein the reflected laser light comprises laser light reflected from the object in response to the incident radiation, and wherein said controller automatically stops the supply of the power pulses if the power of the signal is below a first threshold value or above a second threshold value.