Affiliations: Ergonomics Division, University of Siegen, Germany | Ergonomics Division, University of Siegen, D-57068 Siegen, Germany
Correspondence:
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Address for correspondence: Joerg Schneider, Department of Mechanical Engineering, Ergonomics Division, University of Siegen, Paul-Bonatz-Str. 9-11, D-57068 Siegen, Germany. Tel.: +49 271 740 2251; Fax: +49 271 740 2740; E-mail: [email protected]
Abstract: In order to optimize the illumination of industrial visual testing and inspection workplaces, the limits of the detectability of 3-dimensional details have to be determined for different surfaces and lighting scenarios. For this reason, the influence of the inclination of samples on luminance and contrast was examined, and additionally laboratory tests were carried out to measure visual acuity when detecting flaws on the surfaces of different materials at various illuminations. The results were compared to the subjective assessment of test subjects (Ss) who participated in the laboratory tests. It turned out that all results are strongly dependent on the inclination of the samples rather than on the lighting scenarios applied.
