METHOD AND APPARATUS FOR MEASURING THE RADIATION POWER OF A LASER BEAM USED PARTICULARLY FOR INSCRIPTIONS

摘要

In order to measure the radiative power of a laser beam (L), the scattered light (SL) produced by the laser is preferably detected via at least one photodiode (H4), especially in the laser resonator itself, and fed to an evaluation circuit (AWE). In this regard, it is particularly advantageous in the case of a laser that is used for inscribing parts to evaluate the scattered light occurring in the interior of a component (K) for rapidly shading or uncovering the laser beam (L) for the duration of an inscription process. A special evaluation circuit facilitates the reliable detection and display of a measured value formed in this way even in the case of very brief inscription processes.