A new natural spectrum LEDs have been adopted by Koizumi, a traditional Japanese lighting company, for use in lights for children’s rooms and living rooms. the natural spectrum LEDs are optimized to support healthy circadian rhythms based on natural sunlight, under which all animals and plants on the earth have evolved over 3.9 billion years.
In designing their children’s room lighting systems, Koizumi has adopted the series natural spectrum LEDs, which have been recognized as an innovative technology that produces light that closely matches the spectrum of natural sunlight by a total of ten global lighting awards held in Korea, Europe, China, and the US. The new LEDs have three beneficial effects in contrast to conventional LEDs: Eye Better – protection from myopia in children; Study Better – support for students’ learning and concentration; and Sleep Better – improvement in sleep quality.
Based on the results of a comprehensive sleep study conducted by Professor Christian Cajochen and his colleagues at the University of Basel in Switzerland, LED light sources with the same measured intensity and correlated color temperature (CCT), but different spectral output, can have different effects on human behavior and physiology. The study, published in the Journal of Lighting & Research Technology on March 24, 2019, found “evidence that daylight [natural spectrum] LED solution has beneficial effects on visual comfort, daytime alertness, mood, and sleep intensity in healthy volunteers.”
According to the results of a study done by the Bio-Information Laboratory of Seoul National University Hospital in July of 2018, the spectrum LEDs have been shown to reduce eye discomfort and improve sleep patterns.
In addition, Michael W. Young, Jeffrey C. Hall, and Michael Rosbash, the recipients of the Nobel Prize in Physiology or Medicine in 2017, discovered the molecular mechanism of circadian rhythm, which governs biological clock based on a 24-hour cycle that regulates sleep, eating behavior, and metabolism.
Improved sleep has recently become more important in the midst of the COVID-19 pandemic. Various studies show that high sleep quality can boost immunity, enhancing the ability to resist a particular infection or toxin.
“Our natural spectrum LEDs are an advanced technology that has achieved the highest level of eye safety certification from the International Commission on Illumination as a safe light source with no photo-biological risks. In particular, it helps improve eye comfort and concentration for children,” said a representative at Seoul Semiconductor.
Introduced in June 2017, this Series natural spectrum LEDs are an advanced light source that combines the latest optical and compound semiconductor technology of Seoul Semiconductor with Toshiba Materials’ TRI-R® technology. TRI-R, supported by Toshiba Materials, finds in the definition “The light closest to the sun for human well-being” as its original concept. The sunlight spectrum is developed by the same company and can be reproduced by a white LED light source technology.