Please use this identifier to cite or link to this item: http://www.repository.rmutt.ac.th/xmlui/handle/123456789/1205
Title: Effect of polarization to directional surface color measurement
Authors: Sun Ruoduan, Ma Yu, Chen Xiaju
Keywords: polarization
surface color measurement
45:0
0:45
Issue Date: 2013
Publisher: Rajamangala University of Technology Thanyaburi Faculty of Mass Communication Technology
Abstract: The colorimeter of 45:0 and 0:45 geometry conditions are usually utilized for color measurement of samples such as automotive parts, plastics, paint, raw materials, and packaging. The measurement result of this kind directional colorimeter is easy affected by polarization property of the measured surface. This paper shows the relationship between polarization and color measurement error. First, a preliminary theoretical analysis of the polarization effect is established basing on the Fresnel reflection equation. Then, an error model of the directional colorimeter is proposed, which include the polarization property of samples. After that, an experiment is taken on the reference colorimetry apparatus of NIM China, and the result verifies the error model. The conclusion shows that the effect of polarization should carefully treated for colorimetry, and designer need to minimize the polarization of colorimeter, and the end user should choose a fit colorimeter according to the characteristic of the test surface.
Description: ACA2013Thanyaburi: Blooming Color for Life December 11-14, 2013
URI: http://www.repository.rmutt.ac.th/dspace/handle/123456789/1205
Appears in Collections:ประชุมวิชาการ (Proceedings - MCT)

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