colorimetrinen

Colorimetry is a branch of photometry that deals with the measurement of the color of light. It is a quantitative science that describes the color of light in terms of its spectral composition. The term "colorimetry" comes from the Greek words "chroma" meaning color and "metron" meaning measure.

The primary goal of colorimetry is to quantify the color of light in a way that is consistent with human visual perception. This is achieved by using a standard observer, which is a theoretical model of the human eye that describes how it responds to different wavelengths of light. The standard observer is defined by the Commission Internationale de l'Éclairage (CIE) and is used to calculate the tristimulus values (X, Y, Z) of a light source.

The tristimulus values are then used to calculate the chromaticity coordinates (x, y) of the light source, which describe its color in terms of its hue and saturation. The chromaticity coordinates are plotted on a chromaticity diagram, which is a two-dimensional representation of the colors that can be produced by a light source.

Colorimetry is used in a wide range of applications, including the design of lighting systems, the calibration of color displays, and the quality control of colorants. It is also used in the field of color science, which studies the perception and reproduction of color.