| Zugriffsnummer | 44749 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | An insight into the present capabilities of national metrology institutes for measuring sparkle |
| Autor(in); Institution |
Ferrero, Alejandro; Instituto de Óptica "Daza de Valdés" , Consejo Superior de Investigaciones Cientificas, SPAIN
Basic, Nina; METAS, SWITZERLAND
Acosta, Joaquin Campos; Instituto de Optica, Consejo Superior de Investigaciones Cientificas, SPAIN
Pastuschek, Marcel; 4.5, Angewandte Radiometrie, PTB-Braunschweig
Perales, Esther; Universidad de Alicante, SPAIN
Porrovecchio, Geiland; Czech Metrology Institute, CZECH REPUBLIC
Smid, Marek; Optics, Czech Metrology Institute, Laboratory of Fundamental Metrology, CZECH REPUBLIC
Schirmacher, Alfred; 4.5, Angewandte Radiometrie, PTB-Braunschweig
Molinero, José Luis Velázquez; Instituto de optica "Daza de Valdés", CSIC, SPAIN
Verdú, Francisco Miguel Martínez; Axalta Coating Systems LLC, USA
|
| Quelle/Jahr | Metrologia: 57 (2020), 6, 1 - 18 |
| Artikelnummer | 065029 |
| ISSN | 0026-1394 (PRINT) ; 1681-7575 (ONLINE) |
| DOI | |
| Verlag | Bristol: IOP Publishing |
| Zusammenfassung | Large effect pigments, due to their strongly specular reflectance, produce a special visual texture known as sparkle. The use of these pigments in many industries (automotive, cosmetic, paper, architecture...) makes the control of this visual texture necessary. A measurement scale has to be developed, so that traceability can be provided by national metrology institutes (NMI) or designated institutes. Some of them (PTB, METAS, CMI and CSIC) have tested their existing capabilities to measure sparkle, and their results are presented. Two possible sources of systematic errors have been identified: inadequate illumination and collection full-angles, and inadequate size of the virtual aperture used to assess the luminous flux reflected on the effect pigments. The measurement scale of sparkle used in this comparison is thoroughly presented. This comparison will allow the methodology to measure sparkle to be improved. |
| Kostenfreier Zugang | Open Access Hybrid |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
| Forschungsprojekt | 16NRM08: BiRD: Bidirectional reflectance definitions |
| Förderinformationen (1) |
Förderername: European Commission (EC)
Förderer ID: 0000 0001 2242 8989 Förderer ID Typ: ISNI Förderprogramm: EMPIR 2016 Normative Titel der Förderung: 16NRM08: BiRD: Bidirectional reflectance definitions Förderungsnummer: 16NRM08 |
Zitierung
Ferrero, A., Basic, N., Acosta, J. C., Pastuschek, M., Perales, E., Porrovecchio, G., Smid, M., Schirmacher, A., Molinero, J. L. V., & Verdú, F. M. M. (2020). An insight into the present capabilities of national metrology institutes for measuring sparkle. Metrologia, 57(6), 1–18. https://doi.org/10.1088/1681-7575/abb0a3