There are many kinds of light sources, their spectral characteristics are different, so the same object in different light sources of the irradiation, will show different colors, this is the color rendering of the light source.
Usually, people are used to the color differentiation under sunlight, so when comparing color rendering, they usually take the artificial light source close to the solar light spectrum as the standard light source, and the closer the light source is to the standard light spectrum, the higher its color rendering index.
Suitable places for different color rendering indices. In places where colors need to be clearly identified, a mixture of multiple light sources with suitable spectra can be used.
The color rendering of artificial sources mainly depends mainly on the spectral distribution of the source. Light sources with a continuous spectrum similar to sunlight and incandescent lamps all have good color rendering. A unified test color method is used to evaluate it both at home and abroad. The quantitative index is the color development index (CRI), including the general color development index (Ra) and the special color development index (Ri). The general color rendering index is usually only used to evaluate the special color rendering index, which is only used to investigate the color rendering of the measured light source to the human skin color. If the general color rendering index of the light source to be measured is between 75 and 100, it is excellent; and between 50 and 75, it is generally poor.
The comfort of color temperature has a certain relationship to the illumination level. At very low light, comfortable light is a low color temperature color near flame, at low or moderate light, comfortable light is a slightly higher color color near dawn and dusk, and at high light is a high color temperature sky color near midday sunshine or blue. So when designing the interior space of different environment atmosphere, appropriate color mild illumination should be selected.
Post time: Sep-02-2022
