Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

 Previous item  Up One Level Next item

colorimeter

An instrument for measuring or specifying color by means of comparison with synthesized colors. i.e., by reference either to other colors or to complex stimuli, not in general identical with the actual color stimulus, and giving results not independent of abnormalities in the color vision of the observer. The typical colorimeter has a built-in standard light source, three colored filters, photoelectric cells or phototubes, a standard reflecting surface, and, in modern instruments, photoelectric cells and electronic circuits to replace the human eye as the receptor. The results of a colorimeter examination are expressed as "chromaticity coordinates. " (197 , 233 )




[Search all CoOL documents]


URL: http://cool.conservation-us.org/don/dt/dt0782.html
Timestamp: Saturday, 19-Nov-2011 13:18:40 PST
Retrieved: Friday, 24-Nov-2017 14:32:23 GMT