Abstract: A disc lacquering station, a laser beam recorder, a developing station and a metallizer are arranged in tandem. A cassette station (7) for the intermediate storage of substrates precedes and another follows the laser beam recorder. The cassette station (7) has a fixedly installed buffer magazine (9) for substrates and an extra magazine (10), removable from the apparatus, for additional substrates. In this manner substrates can be taken with the extra magazine from the cassette station preceding the laser beam recorder, recorded on a separate laser beam recorder, and then air-locked back into the production apparatus.

Abstract: In an apparatus for the laser beam exposure of a substrate disc (5), linked block tables (19, 29) are provided, which have each a piezotranslator (24, 31). This makes it possible to perform a fine correction of the movements very rapidly and very precisely.

Abstract: A vertically disposed drive spindle (5) rotates turntable (6) supporting a substrate (7) at high speed, the turntable having a smaller diameter than the substrate. Coaxial with the turntable (6), a centering ring (10) having a frustoconical inside surface can be raised vertically between a lower and upper position. The latter has on its upper side a greater diameter and on its lower side a smaller diameter than the substrate (7). In its lower position the centering ring (10) is at a distance from a substrate (7) lying on the turntable (6), but in its upper position its inside surface supports the substrate (7) at an axial distance above turntable (6).