Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Technische Universitaet Dresden

Technische Universitát Dresden

Erich Utsch Ag

Fusion Bionic Gmbh

Tim Kunze

Andres Fabian Lasagni

Sabri Alamri

Sven Bretschneider

Bernd Pfundstein

Marko Seifert

Bogdan Voisiat

Florian Roessler

Mikhael El-Khoury

Andrés Fabián Lasagni

Alfredo Ismael Aguilar Morales

Andrés Fabiàn Lasagni

Florian Rößler

An optical arrangement for direct laser interference structuring. A laser beam is directed to a reflecting mirror with inclined surface and strikes a first beam splitter, it is divided into two partial beams and one partial beam is deflected to a focusing element. The second partial laser beam is directed to a first pentamirror and after multiple reflection and/or refraction, the focusing element, or it is directed to a second beam splitter and is divided into a first partial beam and a third partial beam. The partial beams are directed to the focusing element by the first pentamirror and are directed by the focusing element to the surface to be structured interfering with each other. The reflecting mirror is moved in a translational manner, maintaining a 45&#xb0; angle parallel to the optical axes of the emitted laser beam influencing the interference period &#x39b;.

Optical arrangement for direct laser interference structuring

The present invention relates to a labeling element for items, which on a surface thereof is formed with a plurality of pixels with periodic lattice structures, in particular linear lattice structures. Lattice structures with in each case one structural period &#x39b; and an alignment of the structural elements, which are aligned to one another in particular in a linear parallel manner, at an angle &#x3c6; with respect to an axis of reference are formed in individual pixels such that when the pixels constituting the labeling element are irradiated with electromagnetic radiation, preferably monochromatic electromagnetic radiation, an image of the labeling element is created on an detector array or a surface, by means of images of at least one order of diffraction of the electromagnetic radiation diffracted by pixels which can be used for identification of the respective labeling element.

Labeling element for items

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Dresden, Germany

Tim Kunze