| 摘要 |
Disclosed are smoothing phosphors for AC LED lighting capable of prolonging the light emission time of an AC LED (or array of AC LEDs) during a ½ cycle response to a phase change of the alternating current to substantially reduce flicker. The smoothing phosphor includes a matrix represented by the formula: M(1_k-r-v)X(m-p)A12(n-o.5x-o.5y)03(n-o.5x- o.5y):Mn(x+p)0(x+p), Siy02y, Euk, Rr, Liv wherein M is at least one of La2O3, Ce2O3, Gd2O3, Lu2O3, Ba2OF2, Sr2OF2, Ca2OF2, Ba2OC12, Sr2OC12, Ca2OC12, BaO, SrO, CaO, or ZnO; provided that when M includes BaO, SrO, CaO, or ZnO, M does not include La203, Ce203, Gd203, Lu203, Ba2OF2, Sr2OF2, Ca2OF2, Ba2OC12, Sr2OC12, or Ca2OC12; X is at least one of MgO or ZnO; R is at least one of Sm, Pr, Tb, Dy, Er, or Ho; m=0 to 2; n=4 to 1 1; x=0.005 to 1; y=0.005 to 1; p=0 to 1; k=0 to 0.2; r=0 to 0.2; and v=0 to 0.2. |
