Before entering the discussion in this area, someone may ask: What is healthy lighting? How does healthy lighting affect us? What kind of light environment is needed by people? Studies have shown that the impact of light on humans is not only the direct visual sensory system, but also other non-visual sensory systems.

Biological mechanism: the effect of light on people
Light is one of the main driving forces of the human body's circadian rhythm system. Whether it is natural sunlight or artificial light sources, it will trigger a series of circadian rhythm reactions. Melatonin affects the internal biological laws of the body, including circadian, seasonal and annual rhythms to adapt to Changes in the outside world. Professor Jeffrey C. Hall from the University of Maine, Professor Michael Rosbash from Brandeis University, and Professor Michael Young from Rockefeller University won the Nobel Prize in Medicine for their discovery of circadian rhythm and its causal relationship with health.
Melatonin was first extracted from cattle pine nuts in 1958 by Lerner and others, and was named as Melatonin, which is a neurological endocrine hormone. Under normal physiological conditions, the secretion of melatonin in the human body is more nights and less days, showing circadian rhythmic fluctuations. The greater the light intensity, the shorter the time required to inhibit the secretion of melatonin, so middle-aged and elderly people The group prefers light demand with a warm and comfortable color temperature, which promotes the secretion of melatonin and improves the quality of sleep.
From the perspective of medical research, it only acts on the pineal gland through non-visual information pathways, which affects the secretion of human hormones, thereby affecting human emotions. The most obvious effect of lighting on human physiology and psychology is to inhibit the secretion of melatonin and improve the quality of sleep. In modern social life, a healthy artificial light environment can not only meet lighting needs, reduce glare, but also regulate human physiology and psychological emotions.
Feedback from some users or related research can also prove that light has an impact on the human body. Cai Jianqi, director and researcher of the Visual Health and Safety Protection Laboratory of the China National Institute of Standardization, led a team to carry out research cases on primary and secondary school students for reference. Two case results All are: adopting a systematic solution of "scientific fitting-healthy lighting-visual function detection and tracking and supporting guidance" is expected to achieve myopia prevention and control, and healthy light has a positive impact on the human body. Therefore, sufficient outdoor natural light exposure is beneficial to the human body. About two hours of outdoor activities a day can effectively reduce the risk of myopia, improve the quality of life and strengthen the ability to control negative emotions. On the contrary, the lack of a certain amount of natural light, insufficient lighting, uneven light, glare, and stroboscopic light environment have caused more and more students to be troubled by eye diseases such as myopia and astigmatism, and even affect psychology and produce negative emotions. , Irritable and restless.
User needs: from bright enough to healthy lighting
Earlier, in a random spot check interview with users of the Aladdin News Center reporter, it was learned that most people do not know what kind of lighting environment they need to build in terms of light environment needs to be healthy lighting, "enough bright = healthy lighting" , "Natural light = healthy lighting" and other similar concepts still exist in many people's minds. Such users' needs for the light environment are only able to meet the lighting use.

These needs are reflected in the user's choice of LED lighting products. Most users will prioritize appearance, quality (durability and light decay), and whether the color temperature can be adjusted. The brand's popularity ranks fourth.

Compared with the above-mentioned user groups, the needs of the student group for the light environment are often more clear and specific: they tend to have a higher color temperature, inhibit the secretion of melatonin, and make the learning state more awake and stable; no glare, strobe, and short-term Learning to use eyes is not easy to get tired, etc.

But with the improvement of people's living standards, in addition to being sufficiently bright, people began to pursue a healthier and more comfortable light environment. At present, there is an urgent need for healthy lighting in places with high health concerns, such as major schools (in the field of education lighting), office buildings (in the field of office lighting), and home bedrooms and writing desks (in the field of home lighting). The application areas and the needs of the people are greater.

Cai Jianqi, director and researcher of the Visual Health and Safety Protection Laboratory of the China National Institute of Standardization, believes: "Health lighting will first be expanded from the field of classroom lighting, and will gradually spread in fields including elderly care, office and home furnishings." There are currently a total of primary and secondary schools across the country. There are 520,000 classrooms, more than 3.3 million classrooms, and more than 200 million students. However, the light source and lighting environment used in the classrooms are uneven. This is a very large market. The demand for healthy lighting makes these fields have great market value.
The light source is combined with the living environment to meet the needs of users
As the next outlet of the industry, healthy lighting has become a consensus from all walks of life. Domestic health lighting LED brands have also spotted the demand potential of the health lighting market, and major brand companies have rushed to enter.
Therefore, according to different people’s needs for healthy light, the light source produced through advanced research and development technology is combined with the human settlement environment for scientific and meticulous scene division, through intelligent control methods, to provide a reasonable healthy light environment, and the light source is combined with the human settlement environment. , Is the future development direction.
Concluding remarks
At present, the focus of relevant urban functional departments and experts is on the formulation of relevant standards in the field of health lighting, and the author believes that enterprise manufacturers should develop and meet the needs of user groups and target research and development technologies and products as their primary goal. Relevant professional inspection departments have increased the promotion of product inspections and regular manufacturers. Healthy lighting should not be a vague concept and "false proposition" in the minds of users.