Carl Zeiss Jena Gmbh

Carl Zeiss Industrielle Messtechnik Gmbh

Niklas Mevenkamp

Lars Stoppe

Alexander Freytag

Aksel Göhnermeier

A method and apparatus are provided to perform contactless measurement of an object with a measuring camera. The method includes producing an uninterrupted relative motion between the measuring camera and a surface of the object. A plurality of images of the surface of the object are recorded during the relative motion, each image showing a different segment of the surface. A blur of the images that is produced by the relative motion is computationally extracted by applying a deconvolution algorithm, use being made of different convolution kernels that differ from one another in at least one zero. In this case, e.g., exactly one image of each segment of the surface can be recorded. During the recording of the exactly one image at least one recording parameter is changed such that the convolution kernel during the recording changes in at least one zero.

Method and apparatus for the contactless measurement of objects

The invention relates to techniques for material testing of optical test pieces, for example of lenses. Angle-variable illumination, using a suitable illumination module, and/or angle-variable detection are carried out in order to create a digital contrast. The digital contrast can be, for example, a digital phase contrast. A defect detection algorithm for automated material testing based on a result image with digital contrast can be used. For example, an artificial neural network can be used.

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Jena, Germany

Niklas Mevenkamp