Colour quantification system for precise measurement of parameters inducing colour changes

摘要

A colour detection system for identifying the colour of incident light, comprises at least two discrete colour detectors (35,36) which have respective response characteristics such that the output signals X, Y ... of the detectors correspond respectively to X = ∫P(λ) x (λ)dλ, Y = ∫P(λ) y(λ)dλ ..., where P(λ) is the spectral power distribution at wavelengthx and x (X), y (λ) .. are colour matching functions corresponding to the respective response characteristics of the detectors, and means (37,38,39) for analogue manipulation of X, Y ... to enable the values of x and y in the Chromaticity Diagram corresponding to the incident colour to be calculated.