Fluorescent powder composition for reducing blue light harm and light-emitting device
A light-emitting device and blue light hazard technology, applied in the field of lighting, can solve the problem of high blue light components, achieve the effect of reducing blue light hazards and protecting eyesight
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Embodiment 1-51
[0037] A 3500K-4500K light-emitting device for reducing the harm of blue light, which includes a blue light chip with a peak wavelength of 440-465nm and a phosphor composition. The phosphor composition comprises the following phosphor components: component one, Sr with a peak emission wavelength of 490-510nm 1-x-y Ca x Ba y (Si 1-z Al z ) 2 N 2 o 2 : Eu (0≤x, y, z≤1) accounts for 30%-60% of the total mass of the phosphor composition; component two, the luminous peak wavelength is 520-560nm (Y 1-x-yLu x Gd y ) 3 (Al 1-z Ga z ) 5 o 12 : Ce (0≤x, y, z≤1); component three, Sr with luminous peak wavelength of 620-660nm 1-x Ca x AlSiN 3 : Eu (0≤x≤1), wherein the mass ratio of component one to component three is 3-7.5 (the composition and effect of the phosphor composition in the specific embodiment are shown in Table 2, Table 3 and Table 4). The resulting light-emitting device that reduces the hazard of blue light shows that the Ra is above 80, which is comparable t...
Embodiment 52-87
[0061] 5000K-5500K device for reducing blue light hazards, including a blue light chip with a peak wavelength of 440-465nm and a phosphor composition. The phosphor composition comprises the following phosphor components: component one, Sr with a peak emission wavelength of 490-510nm 1-x-y Ca x Ba y (Si 1-z al z ) 2 N 2 o 2 : Eu (0≤x, y, z≤1) accounts for 65%-85% of the total mass of the phosphor composition; component two, the luminous peak wavelength is 520-560nm (Y 1-x-y Lu x Gd y ) 3 (Al 1-z Ga z ) 5 o 12 : Ce (0≤x, y, z≤1); component three, Sr with luminous peak wavelength of 620-660nm 1-x Ca x AlSiN 3 : Eu (0≤x≤1), the content ratio of component one to component three is more than 5 and less than 10 (the composition and effect of the phosphor composition in the specific embodiment are shown in Table 5 and Table 6). The resulting light-emitting device that reduces the hazard of blue light shows that the Ra is above 80, compared with the emission spectrum o...
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