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Definition and measurement of statistical gloss parameters from curved objects
Kalle Kuivalainen1, Antti Oksman, Kai-Erik Peiponen
1Department of Physics and Mathematics, University of Eastern Finland, Joensuu Campus, P.O. Box 111, FI-80101 Joensuu, Finland. kalle.kuivalainen@uef.fi
Applied Optics
|September 22, 2010
Summary
New gloss parameters for curved surfaces enable accurate gloss measurement on non-flat objects. This research introduces statistical gloss parameters for curved objects, enhancing surface quality assessment for items like metal pipes.
Area of Science:
- Materials Science
- Optical Engineering
- Surface Metrology
Background:
- Standard gloss measurement primarily targets flat surfaces, limiting inspection of curved or complex geometries.
- Existing glossmeters are designed for flat objects, posing challenges for evaluating the surface quality of non-planar products.
Purpose of the Study:
- To define novel statistical gloss parameters applicable to curved surfaces.
- To develop and validate gloss measurement techniques for convex and concave objects.
- To assess the surface quality of curved metal pipes and similar items.
Main Methods:
- Development of statistical gloss parameters specifically for curved objects.
- Utilizing two distinct diffractive-optical-element-based glossmeters for data acquisition.
- Conducting measurements on painted and unpainted convex and concave aluminum pipe samples.
Main Results:
- Successfully defined and applied statistical gloss parameters for curved surfaces.
- Acquired gloss data from various convex and concave aluminum pipe samples.
- Demonstrated the efficacy of diffractive-optical-element-based glossmeters on non-flat surfaces.
Conclusions:
- The proposed gloss parameters are effective for characterizing the surface quality of curved objects.
- This methodology advances gloss inspection capabilities for non-flat industrial products, such as metal pipes.
- Diffractive-optical-element-based glossmeters offer a viable solution for measuring gloss on complex geometries.
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