青色光療法とは何ですか
What is Blue light? Blue light is defined as light within the wavelength range of 400-480 nm, because over 88% of the risk of photo-oxidative damage to the retina from fluorescent lamps (cool whie or “broad spectrum”) is due to light wavelengths in the range of 400-480 nm. The blue light hazard peaks at 440 […]
