LED lighting source for high-rendering vision safeguard

摘要

The LED light source for high color rendering vision safeguard according to an embodiment of the present invention includes an excitation light source emitting a wavelength of 455 nm to 475 nm, and a plurality of phosphors excited by light provided from the excitation light source to emit light of a specific wavelength range. However, the phosphors have a light emission wavelength of 600 ~ 650nm, a fluorescent material represented by [Chemical Formula 1] (Sr,Ca)AlSiN ₃ :Eu, [Chemical Formula 2] a fluorescent material represented by CaAlSiN ₃ :Eu, and a mixture thereof [Chemical Formula 3] (Ba,Sr,Ca,Mg,Eu) ₂ Fluorescent material represented by SiO ₄ , [Chemical Formula 4] having a light emitting wavelength of 500 to 540 nm, ] Y ₃ (Al,Ga) ₅ O ₁₂ : Including a second phosphor formed of a fluorescent material selected from among a fluorescent material represented by Ce and a fluorescent material mixture thereof, and the excitation light source, the first phosphor, and the second phosphor 2 The white spectrum emitted through the phosphor has a color rendering index of 90Ra or more, R9 is 50 or more, a wavelength ratio in the range of 415-455nm is less than 40%, and a wavelength ratio in the range of 465nm to 495nm is 100% or more.