Cenital Lighting
Introduction
Natural light is mainly known as the light that comes from the sun or from some organism that produces its own light. There is a wide variety of natural light sources such as fire, lightning to the bioluminescence of some animals such as fireflies and jellyfish and living organisms.
Natural lighting changes with respect to the seasons, the Earth's rotation and environmental conditions.
Over the years, natural lighting has been involved in architecture, design and art, as well as in human factors, both psychological and perceptual.[1].
Natural lighting helps synchronize the rhythm of wakefulness and sleep, promoting a better mood and daytime productivity. With its absence, the circadian rhythm is altered, affecting sleep and health, according to the American Heart Association. [2] In intellectual work environments, insufficient levels of natural light induce visual fatigue, impaired concentration and an increased risk of headaches.[3] [4].
Natural lighting from the sun
Sunlight is the main source of light on our planet, without it life would not exist, even our visual system and the psychological response to light and color are extremely related to daylight.
Sunlight also affects the balance of life that we lead every day, increasing satisfaction and performance in work environments. Several studies have even been carried out on satisfaction in work areas with natural lighting as the main factor, with the aim of creating greater use of light and raising awareness about energy consumption.
Currently, it has been possible to calculate the direction of incident light on surfaces, the environmental conditions and the contaminating factors of a specific site in order to generate a study expanding different fields of research such as the balance of life of people, the psychological and physiological performance of living beings, stimulation and productivity in work areas.
The shadow generated on a sunny day has even been studied since it produces up to 12,400 luxes, however this amount is not even a seventh of the luxes that are measured in direct lighting produced by the sun.