A Comparative Study of Color Temperature and Color Rendering of Reflected Light in the Interface of Exhibition Hall

Key words: interface material reflected light, art color perception, color temperature and color rendering of reflected light

There is a link between the lighting factor and the non-lighting factor that affects the color perception of the artwork, that is, the ambient reflected light. The ambient reflected light is still in a blank state in the research field of the museum's visual environment. In the museums that display small exhibits, the exhibits are generally illuminated by spotlights. The environment of the exhibition halls is usually in a dark state; since there is little light incident on the space interface, the ambient reflected light has little effect. For art museums that mainly display large-scale wall works, the space lighting and art lighting of the exhibition hall are usually combined into one. The light incident on the space interface is more, and the spectral information of the space interface material carried by the reflected light will be on the artwork. Color perception constitutes an influence. The research on reflected light in this section is mainly based on the spectral measurement of the material by the spectrophotometer and the spectral calculation of the reflected light according to the measured data.

1 Theoretical basis for comparative study of color temperature and color rendering of interface material

The fourth chapter of the thesis briefly introduces the calculation method of the color temperature and color rendering performance of the transparent material after filtering. This method is also applicable to the color temperature of the reflected light (calculated by the tristimulus value of the reflected light obtained by the method shown in Figure 7.2 [1]. And the calculation of color rendering performance (Crawford method). The difference between the calculated spectrum of transmitted light and the spectral calculation of reflected light lies in the physical meaning of the calculation result: the light is filtered by the light-transmitting material, the operation is simple, and the calculation result can directly reflect the color temperature and color rendering performance of the filtered light; And the calculation result of color rendering performance only represents an ideal situation, that is, the light to be sought is completely derived from the primary reflection of the known light by the material, and the light reflection in the real space is very complicated, and the calculation result can only represent The orientation of the interface material changes to a specific incident spectrum, and the degree of change is related to many factors such as the spatial geometric relationship of the interface and the material reflectance.