Visible Light Spectrum
Posted on 05/24/2012
Our discussion of shade must begin with a basic discussion about color. Around the year 1670, Sir Isaac Newton demonstrated that a prism could separate white light into a spectrum of colors or wave of colors.
Newton further proved that white light contains all colors, but only some of these colors can be perceived by the human eye. The wavelengths of colors that are visible to the human eye are Red, Orange, Yellow, Green, Blue, Indigo and Violet.
Portions of this post were adapted fromthe book:
Fundaments of Color - Shade Matching and Communication in Esthetic Dentistry published by Quintessence Publishing Co. Inc and written by Dr. Stephen J. Chu, Dr. Alessandro Devigus, Dr. Rade D. Paravina and Mr. Adam J. Mieleszko. and the Wikipedia article: http://en.wikipedia.org/wiki/Early_life_of_Isaac_Newton#Newton.27s_theory_of_colour.
Newton further proved that white light contains all colors, but only some of these colors can be perceived by the human eye. The wavelengths of colors that are visible to the human eye are Red, Orange, Yellow, Green, Blue, Indigo and Violet.
Portions of this post were adapted fromthe book:
Fundaments of Color - Shade Matching and Communication in Esthetic Dentistry published by Quintessence Publishing Co. Inc and written by Dr. Stephen J. Chu, Dr. Alessandro Devigus, Dr. Rade D. Paravina and Mr. Adam J. Mieleszko. and the Wikipedia article: http://en.wikipedia.org/wiki/Early_life_of_Isaac_Newton#Newton.27s_theory_of_colour.
