Acousto-Optic Dispersion Applicability to Plastic Auto-Part Color Characterization
Acousto-optic dispersion occurs when light interacts with a translucent material in which a sound-induced spatial distribution of its refractive index is present. That diffracted light can then be analyzed for different properties of the source. The experimental and theoretical basis of the phenomena were proposed in early twentieth century, mainly by Brillouin and Raman, respectively. Over time, acousto-optics has transited towards applied technology such as image processing in military applications. In this paper, we propose an acousto-optic image acquiring system to study plastic auto-parts color characterization via hyperspectral imaging. Current methodologies regarding the same subject use mainly colorimeters, which by default cannot provide the same amount of spectral information than an acousto-optic system could gather. Therefore, a distinctive potential of acousto-optic technology lies within the subject of plastic auto-parts cosmetic corrosion (PACC) characterization, term which would refer to the study of undesirable changes in color (in plastic auto-parts) due to time and exposure.
The authors would like to thank the support of this work by grant PN3967-2016 from Consejo Nacional de Ciencia y Tecnología (CONACYT), México, Sistema Nacional de Investigadores (SNI) program.
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