DEVICE AND A METHOD FOR DETERMINING A DISTANCE TO A SURFACE OF A WORKPIECE AND AN ARRANGEMENT AND A METHOD FOR EFFECTING A WORKPIECE

摘要

A device for determining a distance to a surface of a workpiece includes an arrangement for emitting an energy beam towards the surface. The device includes a contact member with a first surface configured to contact the surface of the workpiece and a second surface facing the energy beam emitting means. The energy beam emitting arrangement is arranged for directing the energy beam to the second surface of the contact member.