Science of AU222

Beyond the range of visible light—what the human eye can perceive—light possesses a wide spectrum of wavelengths.For many years, research outside the visible region remained limited, yet recent studies have begun to reveal that certain wavelengths in these non‑visible domains hold remarkably beneficial properties for humanity.The infrared region, familiar to us through heating appliances, is an excellent example of such useful characteristics.

Within the ultraviolet region, it is true that UV light has long been regarded as something both useful and undesirable, owing to its adverse effects on the human body.People commonly apply UV‑blocking creams to protect their skin, and the impact on the eyes is particularly serious—necessitating sunglasses in summer and goggles at ski resorts to prevent snow blindness. Yet despite these risks, the germicidal and virus‑inactivating capabilities of ultraviolet light have been recognized for many years.UV light is therefore a form of radiation that offers significant utility while simultaneously requiring careful protection when used around humans.