With the development of society, the importance of healthy light sources has become increasingly prominent. More and more classroom lighting fixtures and study lamps use LED light sources that are gradually moving towards full-spectrum light sources.
With the development of society, the importance of healthy light sources has become increasingly prominent. More and more classroom lighting fixtures and study lamps use LED light sources that are gradually moving towards full-spectrum light sources. So, what is an LED full-spectrum light source?
Full spectrum means having all spectral components. The reference object of LED full spectrum light source is the sunlight spectrum. As we all know, sunlight is the healthiest light. Humans have evolved under sunlight for millions of years and have long adapted to the sunlight environment.The meaning of full spectrum is to reproduce sunlight and bring back to us the benefits of natural light on human physiology, psychology and human body.
The sunlight spectrum includes the visible light spectrum and the invisible light spectrum. The invisible light spectrum mainly includes ultraviolet light and infrared light. At present, the full spectrum mentioned in the field of LED lighting mainly refers to the full spectrum of visible light.The ratio of various wavelength components in the visible light part is similar to that of sunlight，the color rendering index of the light is close to that of sunlight.
In fact, the earliest electric light source used by humans, namely the incandescent light source, has a continuous spectrum that covers the visible light spectrum and has a high color rendering index. It can be said to be the earliest full-spectrum light source. However, due to its low light efficiency and short lifespan, incandescent light was later replaced by better LED light sources.
Early LED light sources also had problems with low light efficiency and insufficient spectral components, but with the development of technology, these problems have been solved. Today, from a technical point of view, LED light sources can achieve a full spectrum and have a high color rendering index. However, due to price and application constraints, full-spectrum LED light sources have not yet been widely used. Today, driven by the comprehensive prevention and control of myopia among children and adolescents across the country, it is believed that full-spectrum LED light sources will receive more attention, and the pace of their promotion and application will be accelerated accordingly.
However, the full spectrum of visible light alone cannot completely solve the problem of myopia in children and adolescents. According to a joint study by the Ophthalmology Center of Sun Yat-sen University, Foshan Second People's Hospital and Guangdong Cosio Lighting Co., Ltd., the infrared spectrum components in invisible light have a very important impact on myopia in children and adolescents. Project research shows that the fullness of the red light spectrum directly affects the myopia of the human eye, the level of immunity, and the health of the skin. The importance of the red light spectrum can be seen from this.
For example, the infrared spectrum is an important part of the invisible light spectrum. The infrared spectrum is divided into three regions: the near-infrared region has a wavelength of 0.8-1.5μm, the mid-infrared region has a wavelength of 1.5-4μm, and the far-infrared region has a wavelength of 4-1000μm. Among them, the wavelength band of 4-14 μm can be effectively absorbed by living organisms and is called "life ray". Infrared rays play a very important role in human health. It can improve human immunity, promote tissue regeneration of biological cells, and can treat a variety of diseases.
In addition to infrared spectrum, ultraviolet spectrum also plays a very important role in human health, such as synthesizing vitamin D and promoting the strength of human bones. Therefore, the future development direction of LED full spectrum must be to further align with sunlight and include invisible light spectrum components. At that time, LED full spectrum will no longer be in the category of lighting, but in the category of light health, and can be widely used in light health care and light medical treatment.
Healthy light is the real full spectrum, because the reference of the full spectrum itself is the sunlight spectrum, and the core theory of healthy light is sunlight is the healthiest light. In the healthy light system, whether it is visible light or invisible light, each spectral component has its unique role. The important work of healthy light is to configure and control these different spectral components in various ways so that they can be used for human health.
LED full spectrum is an emerging market, it has great potential for future development, and light health is a trillion-dollar industry. We believe that only the LED full spectrum that fully and flexibly configures the visible light spectrum, infrared spectrum and ultraviolet spectrum is the real full spectrum.