Lufthansa Technik Ag

3d.aero Gmbh

Sönke Bahr

Werner Neddermeyer

Jan Oke Peters

Michael Thies

Tomas Domaschke

Sven Rasche

Oliver Neumann

Maik Dammann

Mattes Schumann

Tobias Flüh

Tarek Mostafa

Sören Wedow

Ronald Blöcher

Thorsten Schüppstuhl

Jens-Peter Tuppatsch

Tim Harms

A method for assessing a wall of a depression, particularly a bore, in a workpiece. The method requires that a light beam in the depression is deflected so that at least two regions of the at least one wall portion are illuminated, and in that, by means of the at least two regions, reflected light is guided along the first axis out of the depression and is used outside the depression for determining the geometry and/or reflectivity of the at least one wall portion. The determination of the geometry or reflectivity is carried out interferometrically and/or wherein in each region for at least 250 pixels, at least one distance value and/or at least one intensity and/or reflectivity value is detected, and/or wherein the regions and/or the at least one light beam each has an area of at least 0.1 mm.

Method for assessing a depression, in particular a bore, in a workpiece

A borescope includes an electronic image capture unit having two image capture sensors as a borescope lens at an end of a shaft that is designed for being inserted into a borescope opening, a position and alignment of the image capture sensors in relation to one another being suitable for ascertaining three-dimension (3D) information using triangulation; and a pattern projector configured to project a pattern into a common recording region of the image capture sensors. The pattern projector includes: a fundamentally optically imaging light-guide bundle, which is made up of statistically distributed optical fibers having differing transmittances, to whose input surface a light source is coupled and whose output surface is aligned with the region captured by the image capture sensors.

Borescope with pattern projection

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Darmstadt, Germany

Sönke Bahr