In natural healing, light and blue sky are important expressions. However, there are still many people whose living and working environment can not get sunshine or poor lighting conditions, such as hospital wards, subway stations, office space, etc. in the long run, it will not only be bad for their health, but also make people impatient and stressed, affecting their mental health.

So is it possible for people to enjoy the blue sky, white clouds and sunshine in the dark basement?

Sky lights make this imagination a reality. In the real nature, there are countless small particles invisible to the naked eye in the atmosphere. When sunlight passes through the atmosphere, short wavelength blue light hits these small particles and scatters, making the sky blue. This phenomenon is called Rayleigh effect. The “blue sky lamp” designed based on this principle will show a very natural and comfortable lighting effect, just like being in the outside sky and installing it indoors is equivalent to installing a skylight.

It is understood that the world’s first LED lamp with the best simulation of natural light based on this principle was developed by coelux company in Italy. At the 2018 lighting exhibition in Frankfurt, Germany, coelux system, a solar simulation equipment developed by coelux, Italy, attracted extensive attention of exhibitors; At the beginning of 2020, Mitsubishi Electric launched a lighting system called “misola”. Its LED display can simulate the picture of blue sky. Before it was sold abroad, it has gathered a high degree of topics in the lighting market. In addition, the well-known brand Dyson has also launched a lamp called lightcycle, which can simulate the natural light in a day according to the human biological clock.

The emergence of sky lights has brought mankind into a healthy era that really fits with nature. Sky light is playing an active role in closed windowless indoor spaces such as houses, offices, shopping malls, hotels and hospitals.