Practical daylight sources for visual colorimetry

This thesis was concerned with a systematic study of quantifying the quality of D65 simulator for practical visual colorimetry.; The influence of various D65 simulators on visual colour matching was investigated by conducting two phases (I and II) visual assessments. The Davidson and Hemmendinger (D & H) Color Rule was used in phase I of visual assessment to test the similarity of three D65 simulators M, V and P by means of colorimetric match point and visual match point. From the average visual match point results, two D65 simulators M and V had the same average visual match point, one of which has a MI(vis) of 0.24 (Category A) and the other had MI(vis) of 0.34 (Category B) respectively.; The phase II visual assessment further investigated the influence of various D65 simulators on visual colour matching using seventy-seven textile metameric pairs by grey scale rating method. The results showed that two D65 simulators had smaller PF/3 units (11.04), one of which has a MI(vis) of 0.24 (Category A) and the other had MI(vis) of 0.34 (Category B). Another two D65 simulators G and S (Category D) also had smaller PF/3 units (13.08).; The sensitivity of instrumental colour difference to CIE standard illuminant D65 and different D65 simulators, as well as the difference of reflectance factors were studies using seventy-seven textile metameric pairs. The results showed that, for each textile metameric pairs, the instrumental colour difference changed differently in using relative spectral power distributions of CIE standard illuminant D65 and D65 simulators.; Based on the definition of reflectance factor, the Generating Synthetic Metameric Pair (GSMP) model was developed for generating a synthetic metamer from a specified reflectance curve in a given illuminant and primaries. Totally, five hundreds and nineteen synthetic metameric pairs were generated and the successful percentage in generation is ninety-two.; The model of Quantifying the Quality of Artificial Light Sources for Visual Assessment (QQALSVA) was developed for quantifying the quality of artificial light sources in visual assessment. Testing results were illustrated to demonstrate the validity of QQALSVA model including D65 simulators, CIE F7 and fluorescent lamp D65 simulators, as well as CIE F2, F7 and F11. (Abstract shortened by UMI.)...