Patent ID: 8120996
Filing Date: 2012-02-21
Classification: G02B,G03F,G03H

Abstract:
1. A device for microstructuring a storage medium, comprising: a radiation source for generating an at least partially coherent beam of electromagnetic radiation, a modulator having a plurality of individually switchable modulator elements, a beam shaping optical unit for illuminating the modulator, a reducing optical unit for reducing a beam emitted by the modulator, an arrangement for converting a phase modulation into an intensity modulation, and a transport device for moving the storage medium relative to the reducing optical unit, wherein the reducing optical unit is formed in diffraction-limited fashion, the reducing optical unit produces an area reduction of at least 25 proceeding from an area of the individually switchable modulator elements, the transport device is formed as a transport table, and a controller is provided the controller synchronizes the radiation source, the modulator and the transport table, and wherein means are provided for generating a master trigger T means are provided for driving the radiation source in order to generate a pulse at an instant T means are provided for setting the modulator in accordance with an information to be written, before the instant T means are provided for generating at the instant T