摘要:
The invention relates to a color picture screen with an improved blue light emission. The blue phosphor layer comprises a first blue-emitting phosphor and a second phosphor which shows a light emission in the range from 380 to 450 nm.
摘要:
The invention relates to a plasma picture screen provided with a phosphor layer (9) which comprises a mixed particle mixture of a standard phosphor and a further phosphor which emits the same color. The use of two phosphors in one phosphor layer (9) renders it possible for undesirable properties of the phosphors to cancel each other out.
摘要:
The invention relates to a plasma picture screen with a improved white color point. The front plate (1) of the plasma picture screen has a blue layer on the side facing the plasma discharge. This may be the dielectric layer (4), the protective layer (5), or an additional layer.
摘要:
This invention relates to a plasma picture screen provided with a phosphor layer which comprises an intrinsically pigmented phosphor. The plasma picture screen has an improved value for the luminance contrast performance without the efficiency of the phosphors being detracted from.
摘要:
A plasma picture screen comprises a front plate including a glass plate on which a dielectric layer and a protective layer are provided; a carrier plate provided with a phosphor layer including a red and a blue phosphor as well as a green Tb3+-activated phosphor, with a ribbed structure which subdivides the space between the front plate and the carrier plate into gas-filled plasma cells; and a green color filter layer. One or several electrode arrays are provided on the front plate and the carrier plate for generating corona discharges in the plasma cells.
摘要:
An organic light emitting diode comprising a first electrode layer, a second electrode layer, a stack of functional layers, including an organic light-emitting layer, sandwiched between said first electrode layer and said second electrode layer, and an passivation layer arranged adjacent to said first electrode layer is disclosed. The passivation layer reacts with the first electrode layer to form an oxide at a reaction temperature that is induced by an evolving short circuit between the first electrode layer and the second electrode layer. The passivation layer is unreactive at temperatures lower than the reaction temperature.
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 GLS-look-alike LED light source (100) comprising two different types of LEDs (21, 22), preferably LEDs emitting with a near UV spectrum and a blue or white spectrum, respectively. The light source (100) further preferably comprises a transparent bulb (40) with a shape similar to an incandescent lamp that is coated by a luminescent layer (30) to achieve a white lamp spectrum. The luminescent layer may contain one or two luminescent compositions.
摘要:
The invention provides a wavelength converting material comprising a compound of the formula (Y1-w-x-y-zScwLaxGdyLuz)2-a(S04)3:Mea, wherein Me represents trivalent cation or a mixture of trivalent cations capable of emitting UV-C radiation, and wherein each of w, x, y and z is in the range of from 0.0 to 1.0 and w+x+y+z≦1.0, and wherein 0.0005≦a≦0.2. The wavelength converting material may be applied in an illumination device for UV illumination, in particular for sterilization or disinfection by germicidal UV illumination.
摘要翻译:本发明提供一种波长转换材料,其包含式(Y1-wxy-zScwLaxGdyLuz)2-a(S04)3:Mea的化合物,其中Me表示三价阳离子或能够发射UV-C辐射的三价阳离子的混合物,以及 其中w,x,y和z中的每一个在0.0至1.0的范围内,并且w + x + yy + z + 1.0,并且其中0.0005≤a≤0.2。 波长转换材料可以应用于用于UV照明的照明装置中,特别是用于通过杀菌UV照射的灭菌或消毒。
摘要:
The invention relates to phosphors of the formula (I) (Ln1-a-bGdaSmb)wMgxSry(Al1-cBc)zO(3/2w+x+y+3/2z) (I) where Ln=Y, La and/or Lu a, c=0.0 to 1.0 0 0.0 to 12.0, and to a process for the preparation of these phosphors and to the use thereof as conversion phosphors for conversion of the near-UV emission from an LED.
摘要翻译:本发明涉及式(I)(Ln1-a-bGdaSmb)wMgxSry(Al1-cBc)zO(3 / 2w + x + y + 3 / 2z)(I)的荧光体,其中Ln = Y,La和/或 Lu a,c = 0.0〜1.0 0 0.0〜12.0,制备这些荧光体的方法, 其用作用于转换来自LED的近紫外发射的转化磷光体。