LED light sources with a sun-like emission spectrum for children’s institutions

Abstract

The article looks more like a scientific-theoretical than an experimental one, so it is proposed to remove the IMRAD structure, especially since it is given only in the summary, but not in the article itself.
 “In Russia, under the national project “Education”, a large-scale program for the construction of schools is underway. About 700 schools have already been built, and if in general for all programs, this is 900 schools..... Many schools have swimming pools, modern canteens...” noted the head of the relevant ministry at a meeting with the President of the Russian Federation Vladimir Putin at the beginning of 2023. In total, about 750 billion rubles were allocated to finance the program for the construction of new schools. (it includes 454 billion from the federal budget). In total, it is planned to build 1,300 educational institutions, which will have more than 1 million places. In addition to the construction of new schools, the plan provides for the implementation of a program of capital repairs and technical renovation of existing general education institutions by the end of 2026: it will include 7,300 buildings. The pace of capital renovations has also accelerated in 2022–2023: three thousand buildings will be renovated, mainly in rural areas. By 2024, all 27 thousand rural schools, according to modern requirements, will be equipped with modern equipment. In modern schools, it is planned to equip computer classes with modern computing equipment, and energy saving plans provide for the widespread use of LED lighting. The reasons for the negative effects of the light spectrum of LED lighting and personal computer monitors on the health 
 of children and adolescents, in particular the increase in myopia, have not yet been sufficiently studied.
 Analytical, sociological, and statistical methods were used.
 The relationship between physiological and behavioural factors that may lead to decreased vision is described. The restructuring of the work of the visual analyzer, associated with the selection of information in accordance with the models proposed in the social environment has been suggested to contribute to the formation 
 of myopia; with a decrease in one’s own search activity with increased myopia; with an increase in the functioning of internal information processing systems and 
 a decrease in the systems of perception and implementation of actions.
 Limitations. The study was limited to the area of study of the subject of research, materials from the Scopus, Web of Science, MedLine, The Cochrane Library, EMBASE, Global Health, CyberLeninka, RSCI databases and our own experiments.
 Conclusion. The spectral composition of artificial light and its intensity give rise to the prerequisites for the development of myopia or another functional-structural response in the variety of ganglion, amacrine cells, and receptors in the visual analyzer of multicellular animals. The narrow and incomplete spectrum of light from domestic LED lamps cannot be a good choice for the prevention of myopia in children. Considering the diversity of opsins in the human visual analyzer, we have developed and manufactured an artificial, light source using LEDs and phosphors, the spectrum of which considers the spectral photosensitivity of opsins in the human eye and is close as possible to the spectrum of sunlight at a correlated colour temperature of about 4000 and 3000 K. The first one has now been manufactured a batch of lamps, the spectral composition of the emitted light of which has no analogues and is ahead of the world’s best samples in terms of spectrum composition and efficiency level. The spectrum of this light source was demonstrated in a presentation at the Erisman Readings 2023. To elucidate the biological mechanisms of the development of myopia in children, additional efforts are needed within the framework of a new scientific direction - evolutionary hygiene. This will make it possible to establish how small changes in the composition of the light spectrum (emission in the region of 410–450 nm, dip in the region of 480 nm and absence of 380 nm) of artificial sources influenced catastrophic (chaotic) changes at the genetic level of humans and the entire living world.