摘要:
The invention relates to compounds of the formula (I) Ma2-y (Ca,Sr,Ba)1-x-ySi5-zMezN8:Eux Cey (I), where Ma=Li, Na and/or K Me=Hf4+ and/or Zr4+ x=0.0015 to 0.20 and y=0 to 0.15 z
摘要翻译:本发明涉及式(I)Ma2-y(Ca,Sr,Ba)1-x-ySi5-zMezN8:Eux Cey(I)的化合物,其中Ma = Li,Na和/或K Me = Hf4 +和/ 或Zr4 + x = 0.0015〜0.20,y = 0〜0.15z <4,以及这些化合物的制备方法以及用作荧光体和转化荧光体用于从LED发出的蓝色或近紫外线发射的转化。
摘要:
A tungstate-based scintillating material and a method for using a tungstate-based scintillating material is provided. In addition, a radiation detector and an imaging device incorporating a tungstate-based scintillating material are provided.
摘要:
The invention provides a a luminescent material comprising particles of UV-luminescent material having a coating, wherein the coating (a “multi-layer coating”) comprises a first coating layer and a second coating layer, wherein the first coating layer is between the luminescent material and the second coating layer, and wherein in a specific embodiment the second coating layer comprises an alkaline earth oxide, especially MgO. Further, the invention provides a lighting unit comprising such luminescent material.
摘要:
The invention relates to a light emitting device (1) with high colour rendering comprising a wavelength converting member (2) with a luminescent medium for wavelength conversion of blue light and/or ultraviolet light (10) into red light and/or yellow and/or green light and a light source (3) emitting blue light (10) and/or ultraviolet light arranged to pump the luminescent medium, said luminescent medium essentially having a main phase of a solid state host material which is doped with Ce3+-ions. According to the invention the host material comprises ions of a further rare-earth material Ln, wherein the host material is selected such that the emission energy of the 5d-4f emission on Ce3+-ions is energetically higher than the absorption energy into an upper 4fn state of the further rare-earth material Ln, and wherein the light emission of wavelength converted light is caused by an intra-atomic 4fn-4fn transition within the ions of the further rare-earth material.The invention further relates to a corresponding lighting system comprising the light-emitting device and a corresponding luminescent medium.
摘要:
The invention relates to a liquid-crystal display fitted with a backlighting system having a white light source which comprises a semiconductor diode and a phosphor layer comprising a combination of at least two phosphors, where at least one phosphor emits red light and at least one phosphor emits green light, and to a process for the production thereof.
摘要:
The invention relates to an illumination system with a material having a low or negative thermal expansion coefficient in order to compensate for the thermal expansion of the further materials present in the illumination system.
摘要:
The invention relates to phosphors having a garnet structure of the formula I (Ya,Gdb,Luc,Sed,Sme,Tbf,Prg,Thh,Iri,Sbj,Bik)3-x(All,Gam)5O12:Cex (I) where a+b+c+d+e+f+g+h+i+j+k=1 l+m=1 and x=0.005 to 0.1, and to a process for the preparation of these phosphors, and to the use thereof as conversion phosphors for conversion of the blue or near-UV emission from an LED.
摘要翻译:本发明涉及具有式I(Ya,Gdb,Luc,Sed,Sme,Tbf,Prg,Thh,Iri,Sbj,Bik)3-x(All,Gam)5O12:Cex(I)的石榴石结构的荧光体, 其中a + b + c + d + e + f + g + h + i + j + k = 1 l + m = 1和x = 0.005至0.1,以及制备这些荧光体的方法, 其用作转换荧光体,用于从LED转换蓝色或近紫外发射。
摘要:
An illumination system, comprising a radiation source (1) and a luminescent material (3,4,5) comprising at least one phosphor capable of absorbing a part of light emitted by the radiation source and emitting light of wavelength different from that of the absorbed light; wherein said at least one phosphor is a yellow red-emitting europium(II)-activated earth alkaline lithium orthosilicate of general formula (Sr1-x-y-zCaxBay)Li2SiO4:Euz wherein 0≦x≦1; 0≦y≦1; 0.001
摘要翻译:1.一种照明系统,包括辐射源(1)和发光材料(3,4,5),所述发光材料包括至少一种能够吸收由所述辐射源发出的光的一部分的荧光体并且发射与所吸收的光的波长不同的波长的光 光; 其中所述至少一种荧光体是通式(Sr1-x-y-zCaxBay)Li2SiO4:Euz的黄红色发射铕(II)活化的碱土原硅酸锂,其中0≤x≤1; 0 <= y <= 1; 0.001
摘要:
The invention relates to a luminescent material comprising a luminescent particle (20) for generating light (4), wherein the luminescent particle (20) has a structured particle surface for effectively outcoupling the light (4) generated within the luminescent particle (20). Furthermore, the invention relates to a light source comprising a luminescent material according to the invention and a device for exciting the luminescent material.