Demonstration of the Spectrophotometric Complementary Color Wheel Using LEDs and Indicator Dyes
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- 作者：W. Russ Algar ; Caitlyn A. G. De Jong ; E. Jane Maxwell ; Chad G. Atkins
- 刊名：Journal of Chemical Education
- 出版年：2016
- 出版时间：January 12, 2016
- 年：2016
- 卷：93
- 期：1
- 页码：162-165
- 全文大小：348K
- ISSN：1938-1328
文摘
A quick, simple, and engaging demonstration of the spectrophotometric complementary color wheel is presented. Colored indicator dye solutions are illuminated under ambient room light and with different colors of light-emitting diodes (LEDs) in a dark room. The solutions are observed to be colored, black and opaque, or transparent and colorless in accordance with the color wheel, their optical absorption spectra, and the illumination conditions.