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Priority to TW094109119ApriorityCriticalpatent/TW200634133A/en
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Publication of TWI337198BpublicationCriticalpatent/TWI337198B/zh
An inorganic luminescence material of UV sold light source, in which the said material is an inorganic phosphor in orthosilicate group of UV LED, whose main ingredients are Sr2CaLn2(SiO4)3 ± δ, whose light emitting center is composed of Eu<SP>+2</SP>, Sm<SP>+2</SP>, Yb<SP>+2</SP> Dy<SP>+2</SP>, Mn<SP>+2</SP>, Sn<SP>+2</SP>, Cu<SP>+2</SP> series of divalent ions by entering cation optical grating nodal point, and the second part of light emitting center is composed of trivalent TR<SP>+3</SP> ions of Ce<SP>+3</SP>, Eu<SP>+3</SP>, Tb<SP>+3</SP>, Sm<SP>+3</SP>, Dy<SP>+3</SP> series with being distributed in nodal point. When chemical index is in the scope of 0 ≤ δ ≤ 0.2, the multiband white light generating the wavelength of light radiation δ ≤ 430nm (nanometer) can be obtained under the condition of utilizing semiconductor heterogeneity of base groups of indium nitride and gallium nitride with short wave UV light excited; the color temperature of multiband white light lies between T=2500K and 12000K.
TW094109119A2005-03-242005-03-24Inorganic luminescence material of UV solid light source
TW200634133A
(en)
White light emitting diodes (LEDs) with good color rendering indices (CRI) and high luminous efficiencies by the encapsulation of mixed and double-deck phosphors