The invention relates to an optical device comprising a stereomicroscope having a lens (4, 13), and a laser (5) which emits a laser beam (8) for machining a workpiece (9). The inventive device is characterised in that a tiltable mirror (10) is provided, by means of which the laser beam (8) can be guided...http://www.google.es/patents/US20030147135?utm_source=gb-gplus-sharePatente US20030147135 - Optical device