Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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reflectance

The ratio of the fraction of light reflected by a specimen to the fraction similarly reflected by a standard reflector, under specified conditions. The spectral reflectance curve gives the reflectance of a specimen as it varies with wavelength throughout the entire visible spectrum. Reflectance is important in the physical measurement of color brightness and opacity. (17 )




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