Abstract: A device for equipment alignment. The device is configured as a separate unit for arrangement in front of an aiming mark generating device and includes a first input port configured to receive an aiming mark. A second input port is configured to receive an image of a region under observation from the alignment device. An output port is configured to couple to a detector. The device is arranged to accommodate a corner-cube prism and a beam divider plate. The beam divider plate is arranged at an angle of 45 degrees relative to the input port and at an angle of 45 degrees to the front face of the corner-cube prism.

Abstract: In a method for achieving a required mirror surface on an aluminium workpiece (1), four different production steps (A, B, C, D) are used. In a first production step, an initial surface (1a) is produced by the aluminium workpiece undergoing one or more turning processes. During the turning process, the surface is produced with an exceptional turning precision. In a second en production step, the initial surface is hard-anodised in an electrolyte bath (6) to create an intermediate surface. The hard-anodising is carried out in such a way that an oxide layer of Al2O3 is formed on the turned initial surface. In a third production step, the hard-anodised intermediate surface is polished to prescribed polishing precision, and in a fourth production step, the polished surface is surface-coated with a material or substance in order to produce the required mirror surface.