Color characterization of coatings with diffraction pigments
Coatings with diffraction pigments present high iridescence, which needs to be characterized in order to describe their appearance. The spectral bidirectional reflectance distribution functions (BRDFs) of six coatings with SpectraFlair diffraction pigments were measured using the robot-arm-based gon...
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| Veröffentlicht in: | Journal of the Optical Society of America. A, Optics, image science, and vision Optics, image science, and vision, 2016-10, Vol.33 (10), p.1978-1988 |
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| container_end_page | 1988 |
|---|---|
| container_issue | 10 |
| container_start_page | 1978 |
| container_title | Journal of the Optical Society of America. A, Optics, image science, and vision |
| container_volume | 33 |
| creator | Ferrero, A Bernad, B Campos, J Perales, E Velázquez, J L Martínez-Verdú, F M |
| description | Coatings with diffraction pigments present high iridescence, which needs to be characterized in order to describe their appearance. The spectral bidirectional reflectance distribution functions (BRDFs) of six coatings with SpectraFlair diffraction pigments were measured using the robot-arm-based goniospectrophotometer GEFE, designed and developed at CSIC. Principal component analysis has been applied to study the coatings of BRDF data. From data evaluation and based on theoretical considerations, we propose a relevant geometric factor to study the spectral reflectance and color gamut variation of coatings with diffraction pigments. At fixed values of this geometric factor, the spectral BRDF component due to diffraction is almost constant. Commercially available portable goniospectrophotometers, extensively used in several industries (automotive and others), should be provided with more aspecular measurement angles to characterize the complex reflectance of goniochromatic coatings based on diffraction pigments, but they would not require either more than one irradiation angle or additional out-of-plane geometries. |
| doi_str_mv | 10.1364/JOSAA.33.001978 |
| format | Article |
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Commercially available portable goniospectrophotometers, extensively used in several industries (automotive and others), should be provided with more aspecular measurement angles to characterize the complex reflectance of goniochromatic coatings based on diffraction pigments, but they would not require either more than one irradiation angle or additional out-of-plane geometries.</description><identifier>ISSN: 1084-7529</identifier><identifier>EISSN: 1520-8532</identifier><identifier>DOI: 10.1364/JOSAA.33.001978</identifier><identifier>PMID: 27828101</identifier><language>eng</language><publisher>United States</publisher><subject>Angle of reflection ; Angles (geometry) ; Coatings ; Color ; Diffraction ; Iridescence ; Pigments ; Spectra</subject><ispartof>Journal of the Optical Society of America. 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Commercially available portable goniospectrophotometers, extensively used in several industries (automotive and others), should be provided with more aspecular measurement angles to characterize the complex reflectance of goniochromatic coatings based on diffraction pigments, but they would not require either more than one irradiation angle or additional out-of-plane geometries.</abstract><cop>United States</cop><pmid>27828101</pmid><doi>10.1364/JOSAA.33.001978</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 1084-7529 |
| ispartof | Journal of the Optical Society of America. A, Optics, image science, and vision, 2016-10, Vol.33 (10), p.1978-1988 |
| issn | 1084-7529 1520-8532 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1864527227 |
| source | Optica Publishing Group Journals |
| subjects | Angle of reflection Angles (geometry) Coatings Color Diffraction Iridescence Pigments Spectra |
| title | Color characterization of coatings with diffraction pigments |
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