摘要:
A method of joining an electrode of a spark plug with a noble metal is described, the noble metal being joined locally with the electrode using a thermal input produced by a continuously operating laser beam.
摘要:
A method of joining an electrode of a spark plug with a noble metal is described, the noble metal being joined locally with the electrode using a thermal input produced by a continuously operating laser beam.
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。
摘要:
The present invention provides a method of monitoring performance of a discharge lamp. The discharge lamp includes electrodes and a discharge vessel filled with gas and equipped with a luminescent layer, wherein the gas is intended to emit a first ultraviolet light in a first spectral range when the gas is excited by an electric field produced by the electrodes, and at least part of the first ultraviolet light is intended to be changed into a second ultraviolet light in a second spectral range of longer wavelength than the first spectral range by the luminescent layer. The method comprises the steps of finding the value of a first intensity of the first ultraviolet light; finding the value of a second intensity of the second ultraviolet light; and determining the conversion efficiency of the luminescent layer for converting the first ultraviolet light into the second ultraviolet light on the basis of the ratio of the value of the second intensity to the value of the first intensity.
摘要:
The invention relates to a phosphor element comprising Cr(III)-activated aluminium oxide (ruby), to the production thereof, and to the use thereof as LED conversion phosphor for white LEDs or so-called colour-on-demand applications.
摘要:
This invention relates to a dielectric barrier Xe discharge lamp comprising an UV-B phosphor. The lamp consists of a gas-tight, discharge vessel with a gas filling containing Xe or a Xe/Ne mixture and is provided with a luminescent layer, which comprises at least one luminescent material emitting in the UV-B range (280 to 320 nm). The luminescent layer comprises a Gd3+ activated phosphor according to the formulas McPO4:Gd, Lal1—XAl3(BO3)4:Gdx, and La1—xB3O6:Gdx which is eventually sensitised by Bi3+, Pr3+ or Nd3+ The advantages of such an UV-B emitting discharge lamp over fluorescent lamps based on a Hg low-pressure discharge are a high power density, 10 instant light, long lifetime, a spectral power distribution which is only determined by the phosphor blend, and an arbitrary burner design.