Siemens Aktiengesellschaft

Peter Rentschler

Anton Schick

Helmuth Euler

A method for measuring the depth of a surface of a test object may include projecting a colored fringe pattern formed by a sequence of colored fringes onto a surface of the test object, and detecting and evaluating a fringe pattern reflected by the surface of the test object using an evaluation device. The colored fringe pattern and the evaluation device may be designed such that the depth of the surface of the test object is measured based on the sequence of colored fringes of the reflected fringe pattern and based on a sequence of fringe widths of the reflected fringe pattern.

Measuring depth of a surface of a test object

An arrangement is disclosed for increasing dynamics in color-coded triangulation by using an adapted narrow band color filter. Spectral passage ranges of the color filter overlap with sensitive spectral ranges of a camera sensor. However, the spectral passage ranges are, in contrast to the sensitive spectral ranges of the camera sensor, spectrally disjunct, and the transmitted colors can therefore be clearly identified.

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Neuhengstett, Germany

Peter Rentschler