摘要:
Disclosed is a luminous substance that belongs to the class of oxinitridosilicates, comprises a cation M which is doped with divalent europium, and is of general formula M(1-c)Si2O2N2:Dc, wherein M = Sr or M = Sr(1-x-y)BayCax with the stipulation x+y
摘要:
Disclosed is an illumination system that simultaneously utilizes the blue, green, and red color mixing principle (RGB mixing) and the principle according to which a radiation emitted primarily by an LED is converted into light having a greater wavelength by means of a luminous substance, said luminous substance absorbing said radiation. At least two LEDs are used, a first LED emitting primarily in the range from 340 to 470 nm (dominant wavelength) and a second LED emitting in the red range between 600 and 700 nm (dominant wavelength). The green component is generated by the fact that the primary radiation of the first LED is converted at least in part by a green-emitting luminous substance that belongs to the class of oxinitridosilicates, comprises a cation M, and is of general formula M(1-c)Si2O2N2:Dc. M contains Sr as a component while D is doped with divalent europium, wherein M = Sr or M = Sr(1-x-y)BayCax with the stipulation x+y
摘要翻译:照明系统同时使用蓝色,绿色和红色(RGB混合)的混色原理,以及通过吸收该辐射的荧光体将由LED发射的初级辐射转换成具有较长波长的光的原理, 使用至少两个LED,其中第一LED主要在340至470nm(主波长)的范围内发射,并且第二LED在600至700nm(主波长)的红色区域中发射,其中绿色分量为 由第一LED的初级辐射产生的至少部分地由绿色发光的磷光体转换,所使用的绿色发光荧光体是具有阳离子M和经验式M(1-c)的氧化硅硅酸盐类的荧光体 )Si 2 O 2 N 2:Dc,M包含Sr作为组分,D掺杂有二价铕,其中M = Sr或M = Sr(1-x-y)BayCax,x + y <0.5,所述氧氮硅酸盐完全或主要包含 高温稳定 e修改HT。
摘要:
The invention relates to LEDs with a low colour temperature of up to 5000 K, consisting of a blue-emitting LED and two illuminants mounted upstream thereof, a first illuminant being from the category of chlorosilicates and a second illuminant from the category of nitridosilicates of formula (Ca,Sr)2Si5N8:Eu.
摘要:
Disclosed is an LED that has a low color temperature of up to 3500 K and comprises a blue-emitting LED as well as two luminous substances which are mounted upstream thereof. A first luminous substance belongs to the class of oxinitridosilicates, contains a cation M which is doped with divalent europium, and is of general formula M(1-c)Si2O2N2:Dc, wherein M = Sr or M = Sr(1-x-y)BayCax with the stipulation x+y
摘要:
Disclosed is a luminous substance that belongs to the class of oxinitridosilicates, comprises a cation M which is doped with divalent europium, and is of general formula M(1-c)Si2O2N2:Dc, wherein M = Sr or M = Sr(1-x-y)BaYCax with the stipulation x+y
摘要:
The invention relates to a luminous matter having garnet structure which is characterized by the addition of Si. It is especially suitable for the photonic excitation by light sources having an emission wavelength of from 250 and 550 nm.
摘要:
An embodiment of the invention relates to a luminescent material, comprising an inorganic substance which includes in its composition at least the element D, the element A1, the element AX, the element SX and the element NX (D representing one, two or more elements from the group consisting of Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm and Yb, A1 representing one, two or more elements from the group of divalent metals which are not included in D, SX representing one, two or more elements from the group of tetravalent metals, AX representing one, two or more elements from the group of trivalent metals, and NX representing one, two or more elements from the group consisting of O, N, S, C, C1, F) and has the same crystal structure such as Sr (Sr a Ca 1-a ) Si 2 A1 2 N 6 .