Method for actuating a laser source, in particular a pulsed laser source, for cutting, engraving, marking, and / or writing on a workpiece, and laser plotter for same

Abstract

The invention relates to a laser plotter and to a method for actuating a laser source (4), in particular a pulsed laser source, for cutting, engraving, marking, and / or writing on a workpiece (7). According to the method, at least one laser source (4) for machining a workpiece (7) is inserted into a housing (3) of a laser device (1), wherein the workpiece (7) is preferably placed on a machining table (9), and the workpiece (7) is preferably machined line-by-line by moving a focusing unit (12) or laser head (12). A frequency signal (24) for actuating the laser source (4) with a constant pulse repetition rate (26), in particular frequency, or an actuation signal for laser pulses (25) with a constant pulse repetition rate (26), in particular frequency, is generated by a control unit (13) from the set parameters and / or a loaded job (18). At the beginning of the machining process or the laser machining, in particular prior to each line (30) or unit of distance, a number (31) of laser pulses (25) for a pixel / unit of distance (29) are calculated by the control unit (13), and a modulation signal (32), which clears the laser source (4) to generate / apply laser pulses (25) with the constant pulse repetition rate (26), is generated from the number of laser pulses and is applied to the laser source (4). The calculated number (31) of laser pulses (25) is kept constant over further pixels / units of distance (29).

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