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Effects of luminance, wavelength and purity on the color attributes: Brief review with new data and perspectives

Effects of luminance, wavelength and purity on the color attributes: Brief review with new data... Toyota Motor Corporation, Toyota-City, Aichi, 471-8571 Japan Toyota Communication Systems Co., Ltd., 8F Kirin Hirokoji Bldg., 2-3-31, Sakae, Naka-ku, Nagoya Aichi, 460-0008 Japan Murakami Color Research Laboratory Co., Ltd., 3-11-3, Kachidoki, Cyuo-ku, Tokyo, 104-0054 Japan Received 1 September 2006; revised 31 October 2006; accepted 9 November 2006 Abstract: As the exterior paint colors of automobiles change the shade of color and brightness according to viewing angle, the appearance of a paint finish is expressed numerically by the reflection characteristic (i.e. reflectance) of paint surface. We figure out that the reflectance of most automotive paint finishes is best measured at the incident angle of 608 and the five aspecular angles of 108, 188, 288, 408, and 908 on the incident plane (Color Res Appl 2005;30:275–282). However, in the case of the so-called color shift paint, which changes its paint finish appearance as a jewel beetle, depending on the light source location, the reflection characteristic can not be expressed accurately by conventional measuring methods. As the directions not included in the incident plane need to be taken into account, we have to measure at 48,139 points, changing all the incident angles and reflected angles. (It would take about 16 days.) http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Color Research & Application Wiley

Effects of luminance, wavelength and purity on the color attributes: Brief review with new data and perspectives

Pridmore, R. W.
Color Research & Application , Volume 32 (5) – Oct 1, 2007
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References (1)

Publisher
Wiley
Copyright
Copyright © 2007 Wiley Periodicals, Inc.
ISSN
0361-2317
eISSN
1520-6378
DOI
10.1002/col.20348
Publisher site
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Abstract

Toyota Motor Corporation, Toyota-City, Aichi, 471-8571 Japan Toyota Communication Systems Co., Ltd., 8F Kirin Hirokoji Bldg., 2-3-31, Sakae, Naka-ku, Nagoya Aichi, 460-0008 Japan Murakami Color Research Laboratory Co., Ltd., 3-11-3, Kachidoki, Cyuo-ku, Tokyo, 104-0054 Japan Received 1 September 2006; revised 31 October 2006; accepted 9 November 2006 Abstract: As the exterior paint colors of automobiles change the shade of color and brightness according to viewing angle, the appearance of a paint finish is expressed numerically by the reflection characteristic (i.e. reflectance) of paint surface. We figure out that the reflectance of most automotive paint finishes is best measured at the incident angle of 608 and the five aspecular angles of 108, 188, 288, 408, and 908 on the incident plane (Color Res Appl 2005;30:275–282). However, in the case of the so-called color shift paint, which changes its paint finish appearance as a jewel beetle, depending on the light source location, the reflection characteristic can not be expressed accurately by conventional measuring methods. As the directions not included in the incident plane need to be taken into account, we have to measure at 48,139 points, changing all the incident angles and reflected angles. (It would take about 16 days.)

Journal

Color Research & Application – Wiley

Published: Oct 1, 2007

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