For lighting (lighting human factors), also known as comfortable lighting, refers to light adjustment along with the rest, and the lighting concept originated in Europe, the purpose is to let the people can live in the light and comfortable lighting environment LED are easy to control, can be combined with physical and biological cycle of light adjustment but, still need to consider the spectral distribution and color temperature conditions.
Lighting is not affect circadian rhythm (circadian rhythm) the key factor is the only factor, some scientists believe that lighting can affect mood, health and energy of the people.
The advantages and disadvantages of LED people for lighting
LED application for lighting has its advantages and also has some disadvantages, such as blue is cold white light, natural light, help to concentrate, can be applied to the students in the classroom and office; but long time by blue light will also inhibit the growth of melatonin (MEL), and affect the quality of sleep, immune the system, but also may cause physical diseases such as cancer.
According to scientific research, can control the amount of insulin blue, so if at night by the blue light, will result in insulin resistance (insulin resistance) phenomenon, is also unable to control blood glucose, insulin, and this phenomenon will lead to obesity, diabetes, high blood pressure and other diseases.
Lighting design can not only consider color temperature
In the design of LED lighting, the spectral energy distribution and color temperature should be taken into account. The color temperature is K at absolute temperature, representing the spectral components of different light sources. The color temperature of blue light falls above 5300k. It belongs to the middle and high color temperature. It has bright sense. On the contrary, red and yellow light belong to warm color. The color temperature is below 3300K, which makes people feel warm, healthy and relaxed. It is suitable for household.
(through Wiki's bhutajata CC BY-SA 4)
However, under the same color temperature conditions, there will be different spectral distribution because of the influence of different viewers and other conditions, such as climate, environment and other factors. Therefore, consultants from Ben ya Burnett, Deborah and Burnett lighting design company believe that the spectral energy distribution (spectral energy distribution, SED) is the key factor affecting human eyes and body.