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

Juergen Ernst

Alexander Oberdoerster

Stephan Junger

Wladimir Tschekalinskij

Michael Schoeberl

The fiber direction of a carbon fiber material of a test object is detected by means of the polarization direction of light reflected by the test object. If, for example, non-polarized light impinges upon carbon fibers, light reflected by the fibers is polarized in fiber direction.

Measurement of a fiber direction of a carbon fiber material and fabrication of an object in carbon fiber composite technique

A refraction at a suitably structured surface for example with an arrangement of the same between image plane and mapping optics is used to realize on the one hand a desired aliasing filtering or spatial low-pass filtering on the image plane wherein on the other hand the manufacturing of such structured surfaces may be realized in a cost-effective way. In addition to that, the plate thickness except for the amplitude of the surface structure and aspects of the stability of the plate is of no importance for handling the same, so that the integration into optical systems is facilitated.

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Erlangen, Germany

Juergen Ernst