Tesa Scribos Gmbh

Robert Thomann

Christoph Dietrich

Steffen Noehte

Stefan Stadler

Jörn Leiber

Matthias Gerspach

Kay Schulte-Wieking

Steffen Scheibenstock

Tobias Kresse

Stefan Borgsmueller

Michael Mayer

A reader for reading computer-generated individualized holograms which are written into a storage medium, having a light source for generating a light beam, a recording means for acquiring image data generated by the light beam by illuminating the individualized hologram, and display means for displaying the display data generated from the image data, wherein all the components are combined in a portable handheld unit.

Reader for reading computer-generated lithograms

A device providing for microstructuring a storage medium includes a radiation source for producing an at least partially coherent beam from electromagnetic radiation, a modulator provided with a plurality of individually switchable modulator elements, a beam-forming optical element for illuminating the modulator, a reducing optical element for reducing a beam radiated by the modulator, and a transport table for displacing the storage medium in relation to the reducing optical element. The device solves technical problems caused by writing of microstructuring and individual diffractive optical elements, in particular computer-generated holograms having a high speed and high writing energy. The device is achieved in that the reducing optical element is configured with limited diffraction and produces a surface reduction of at least 25 from a surface of the individually switchable modulator elements.

Device and method for microstructuring a storage medium and storage medium comprising a microstructured region

A reader for reading computer-generated lithograms which are written into a storage medium, having a light source for generating a light beam, having recording means for acquiring the image data generated by the light beam by illuminating the lithogram, and having display means for displaying the display data generated from the image data, wherein all the components are combined in a portable handheld unit. This reader solves the object of specifying a manageable reader which has great variability in reading the information contained in the dot distribution of a computer-generated lithogram.

Producing a digital hologram-in a storage medium includes: (i) focusing a write beam onto the storage medium; (ii) moving the write beam two-dimensionally relative to the storage medium; (iii) focusing a scanning beam onto a beam-guiding mask having a plurality of tracks; (iv) moving the scanning beam two-dimensionally relative to the mask, the movement of the scanning beam being coupled with the movement of the write beam; (v) generating a position control signal when the position of the scanning beam deviates from the scanned track by a predefined value; (vi) controlling the position of the write beam on the storage medium with the aid of the position control signal; and (vii) writing the hologram by introducing radiation energy point by point, the intensity of the write beam being controlled as a function of the position of the write beam on the storage medium.

Lithograph with beam guidance and method of producing digital holograms in a storage medium

The present invention relates to a method of producing digital holograms in a storage medium, in which the technical problem of writing computer-generated holograms by means of optical lithography as quickly as possible and with little effort with simultaneous accurate control of the timed triggering and the positioning of the write beam is achieved in that a write beam is focused onto the storage medium and moved one-dimensionally relative to the storage medium, in that a scanning beam is focused onto a trigger mask having a plurality of trigger lines and moved one-dimensionally transversely relative to the trigger lines, the movement of the scanning beam being coupled with the movement of the write beam, in that, during the scanning of the trigger lines, a timed trigger signal is generated as a function of the arrangement of the trigger lines, in that, with the aid of the timed trigger signal, the intensity of the write beam on the storage medium is controlled, and in that the hologram is written line by line by introducing radiation energy point by point, the storage medium being displaced transversely with respect to the scanning direction of the lines by a predefined distance to write adjacent lines of the hologram. The technical problem is also solved by a lithograph for producing digital holograms.

Lithograph with one-dimensional trigger mask and method of producing digital holograms in a storage medium

A lithograph for producing digital holograms in a storage medium includes a light source for producing a write beam, the light source having drive means for the two-dimensional movement of the write beam relative to the storage medium and having a first objective for focusing the write beam onto the storage medium. Writing computer-generated holograms by means of optical lithography is solved in that: a two-dimensional trigger matrix is provided, means of producing a scanning beam are provided, a second objective for focusing the scanning beam onto the trigger matrix is provided, the drive means moves the scanning beam two-dimensionally relative to the surface of the trigger matrix, the movement of the scanning beam being coupled with the movement of the write beam, and means for generating a trigger signal to control the intensity of the write beam are connected to the trigger matrix.

Lithograph with a trigger mask and method of producing digital holograms in a storage medium

The invention relates to a lithograph for producing digital holograms in a storage medium (), having a light source () for producing a write beam () with a predefined beam cross section, having a writing lens () for focusing the write beam () onto the storage medium () to be written, the writing lens () being arranged in a lens holder (), and having drive means for the two-dimensional movement of the write beam relative to the storage medium. The technical problem of writing computer-generated holograms as quickly as possible and with little effort by means of optical lithography is solved in that a first drive device () is provided for moving the lens holder () substantially at right angles to the write beam () and in that the aperture of the writing lens () is smaller than the beam cross section of the write beam (). The inventon also relates to a method for the lithographic production of a hologram in a storage medium.

Lithograph with moving lens and method of producing digital holograms in a storage medium

The invention relates to a commonplace object with an outer surface () that encircles the commonplace object () and with at least one cylindrical section () of the surface (), in which the technical problem of specifying a commonplace object to whose surface a relatively large amount of information can be applied is solved in that the cylindrical section () of the surface () consists of a material which can be changed optically, and in that a data bit sequence is written along at least one track () on the cylindrical section ().

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Heidelberg, Germany

Robert Thomann