. Biophysical science. Biophysics. 400 500 600 700 Wavelength (mnJ "3. 400 500 600 700 Wavelength [myt) Figure I. Standard CLE. tristimulus values of unit energy for indicated wavelengths. After Committee on Colorimetry, The Optical Society of America, The Science of Color (New York: Thomas Y. Crowell Company, 1953) pp. 242-243. In order to standardize the description of chromaticity, the Inter- national Congress on Illumination agreed on three artificial standards. These were chosen so that a monochromatic light at any wavelength in the visible spectrum is matched by an average observer
. Biophysical science. Biophysics. 400 500 600 700 Wavelength (mnJ "3. 400 500 600 700 Wavelength [myt) Figure I. Standard CLE. tristimulus values of unit energy for indicated wavelengths. After Committee on Colorimetry, The Optical Society of America, The Science of Color (New York: Thomas Y. Crowell Company, 1953) pp. 242-243. In order to standardize the description of chromaticity, the Inter- national Congress on Illumination agreed on three artificial standards. These were chosen so that a monochromatic light at any wavelength in the visible spectrum is matched by an average observer by the amounts •*/b y~\-> i>\ shown in Figure 1. The curve yK has the same shape as the average photopic luminosity curve; it gives the luminosity of a given light. The curves were normalized so that a white light (of equal. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ackerman, Eugene, 1920-. Englewood Cliffs, N. J. , Prentice-Hall
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