摘要:
A light-emitting diode (LED) emitter and a LED lamp having the same are revealed. The LED emitter includes a first LED chip string, a second LED chip string, a substrate, two electrodes, a high-color-temperature phosphor layer and a low-color-temperature phosphor layer. The substrate where the first LED chip string and the second LED chip string are arranged is electrically connected to the two electrodes. The high-color-temperature phosphor layer and low-color-temperature phosphor layer cover the first LED chip string and the second LED chip string respectively. The total resistance value of the first LED chip string is different from the total resistance value of the second LED chip string.
摘要:
A luminescent element including nitride includes a luminescent film and a metal layer with a metal microstructure formed on a surface of the luminescent film; wherein the luminescent film has a chemical composition: Ga1-xAlxN:yRe, wherein Re represents the rare earth element, 0≦x≦1, 0
摘要:
A field emission light source device, comprising: cathode plate comprising substrate and cathode conductive layer disposed on surface of substrate, and anode plate comprising base formed from transparent ceramic material and anode conductive layer disposed on one surface of base, and insulating support member by which cathode plate and anode plate are integrally fixed, and vacuum-tight chamber formed with anode plate, cathode plate and insulating support member; anode conductive layer and the cathode plate are disposed opposite each other. Because of advantages of good electrical conductivity, high light transmittance, stable electron-impact resistance performance and uniform luminescence, using transparent ceramic as the base of the anode plate in the field emission light source device can increase electron beam excitation efficiency effectively, increase light extraction efficiency of the field emission light source device, and finally increase its luminous efficiency. A manufacturing method of the field emission light source device is also provided.
摘要:
A light emission apparatus (10) and a manufacturing method thereof are provided. The light emission apparatus includes a light emission base body (13) and a metal layer (14) with metal microstructure. The metal layer is set on the surface of the light emission base body. The material of light emission base body is transparent ceramic Y3Al5O12:Tb. By setting a metal layer with metal microstructure on the light emission base body, the interface between the metal layer and the light emission base body could form a surface plasmon under the cathode ray (16). The spontaneous emission of the transparent ceramic and the emission efficiency of the light emission base body could be enhanced by the effect of surface plasmon.
摘要:
A field emission anode plate (1), a field emission light source and a manufacturing method for the light source are provided. The field emission anode plate comprises a transparent ceramic base (10) and an anode conductive layer (11) provided on the surface of the transparent ceramic base which can be excited to produce light by cathode rays. The field emission light source comprises the field emission anode plate, a field emission cathode plate (2) and a supporter (3). The field emission cathode plate comprises a substrate (20) and a cathode conductive layer (21) provided on the surface of the substrate. The anode conductive layer and the cathode conductive layer are arranged opposite to each other, and two ends of the supporter are hermetically connected to the field emission anode plate and the field emission cathode plate respectively, thus the field emission anode plate, the field emission cathode plate and the supporter constitute a vacuum chamber. As the transparency and electron-impact resistance are improved and the corrosion and wear resistance properties are increased, the field emission anode plate is low-cost with luminance uniformity, and the field emission light source also exhibits high luminance intensity, luminance uniformity and a long service life.
摘要:
A rare earth-aluminium/gallate based fluorescent material and manufacturing method thereof are provided. Said rare earth-aluminium/gallate based fluorescent material comprises a core, and a shell which coats said core, wherein said core is a metal nanoparticle, and said shell is a fluorescent powder of chemical formula (Y1-xCex)3(Al1-yGay)5O12, 0
摘要:
Metal nano particles doped with silicate luminescent materials and preparation methods thereof are provided. The luminescent materials are represented by the general formula: (Sr1-x-yAxEuy)3SiO5:Dz@Mn, wherein A is one or two selected from alkaline-earth metal elements, D is F or Cl, @ is for coating, M is one or two selected from Ag, Au, Pt, Pd or Cu metal nano particles, 0≦x≦0.5, 0.001
摘要翻译:提供掺杂有硅酸盐发光材料的金属纳米颗粒及其制备方法。 发光材料由以下通式表示:(Sr1-x-yAxEuy)3SiO5:Dz @ Mn,其中A为选自碱土金属元素中的一种或两种,D为F或Cl,@为涂层,M为 一种或两种选自Ag,Au,Pt,Pd或Cu金属纳米颗粒,0 @ x @ 0.5,0.001
摘要:
Zinc manganese silicate containing metal particles luminescent materials and preparation methods thereof are provided. The said luminescent materials are represented by the general formula: Zn2-xSiO4: Mnx, My, wherein M is metal, 0.001≦x≦0.1, 0.00001≦y≦0.01. The said methods include the following steps: step 1, preparing silica aerogel containing metal particles; step 2, weighing source compound of zinc, source compound of manganese and the silica aerogel in step 1 at stoichiometric ratio and mixing them to form mixture; step 3, sintering the mixture in step 2, then cooling and grinding to form the said luminescent materials with higher luminescent intensity. The said methods have simple steps, easy operation, low sintering temperature and low cost.
摘要翻译:提供了含有金属锰酸锰的发光材料及其制备方法。 所述发光材料由以下通式表示:Zn2-xSiO4:Mnx,My,其中M是金属,0.001 @ x @ 0.1,0.00001 @ y @ 0.01。 所述方法包括以下步骤:步骤1,制备含有金属颗粒的二氧化硅气凝胶; 步骤2,在化学计量比下,在步骤1中称量锌源,锰源和二氧化硅气凝胶,混合形成混合物; 步骤3,在步骤2中烧结混合物,然后冷却和研磨以形成具有较高发光强度的所述发光材料。 所述方法操作简单,操作简便,烧结温度低,成本低。
摘要:
Oxide luminescent materials and preparation methods thereof are provided. The said luminescent materials are represented by the general formula: aRe2O3.bSiO2.cEu2O3.dM, wherein Re is at least one selected from Gd and Y, M is selected from metal nano-particles, (a+c):b=0.5-5, d:b=5×10−5-5×10−3, c:(a+c)=0.02-0.1. Compared to the oxide luminescent materials in the art, the said luminescent materials have higher luminescent intensity.
摘要:
Disclosed is a halogen silicate luminescent material having a chemical structural formula of (N1-a-bEuaMnb)10Si6O21Cl2:xM, and the preparation method thereof, where M is at least one of Ag, Au, Pt and Pd, N is an alkaline earth metal and specifically at least one of Mg, Ca, Sr and Ba, 0