Patent ID: 8824515

Claim:
A laser processing apparatus for laser processing of an object, comprising: a pulsed laser controllable with regard to laser pulse energy and a temporal retrieval of laser pulses, said pulsed laser having an energy control input for receiving an analog signal with a voltage controlling the laser pulse energy, and a retrieval input for receiving a signal by means of which a retrieval of the laser pulses is controllable temporally; a control device, configured to generate, on a basis of processing information, a pulse energy signal which, in a manner temporally correlated with a clock signal assumes voltage values which represent the laser pulse energy for the laser pulses which are retrievable by means of the clock signal; a filter device, the pulse energy signal and the clock signal being passed into said filter device, said filter device having: a comparator device for comparing a voltage of the pulse energy signal with at least one predefinable threshold value condition and generating a logic result signal; a gate, to which the clock signal is passed, said gate being controlled by means of the logic result signal and thereby generating and outputting a retrieval signal; and an adjustable voltage source outputting an energy control signal with a voltage in accordance with a predefinition for a control voltage.