摘要:
The invention relates to a tri-color lamp for generating white light comprising a phosphor composition comprising a phosphor of general formula (Ba1-x-y-z-SrxCay)2SiO4:Euz, wherein 0≦x≦1, 0≦y≦1 and 0
摘要翻译:本发明涉及一种用于产生白光的三色灯,其包括磷光体组合物,该磷光体组合物包含通式(Ba 1-xy z -Zi x Ga z) 其中0≤x≤1,0<= y <= 1和/或 0
摘要:
The invention concerns an illumination system for generation of colored, especially amber or red light, comprising a radiation source and a fluorescent material 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 amber to red emitting a rare earth metal-activated oxonitridoalumosilicate of general formula (Ca1−x−y−zSrxBayMgz)1−n(Al1−a+bBa)Si1−bN3−bOb:Ren, wherein 0≦x≦1, 0≦y≦1, 0≦z≦1, 0≦a≦1, 0
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.
摘要:
A plasma display with a carrier plate, a transparent front plate, a ribbed structure which subdivides the space between the carrier plate and the front plate into plasma cells, which cells are filled with a gas, with one or several electrode arrays for generating corona discharges in the plasma cells, and with a phosphor layer which comprises a phosphor chosen from the group of doped europium(II)-activated barium-magnesium aluminates with the general formula Ba1−xMxMgAl10O17−0.5x:Eu with 0
摘要:
A luminescent material is dispersed in a watery solution of sodium polyphosphate, a watery solution of a nitrate of the metal M is added, after which the luminescent material is separated, dried and fired. The metal is chosen from the group consisting of Ca, Sr, and Ba, whereby a protective layer of metal polyphosphate is formed on the luminescent material.
摘要:
The invention concerns an illumination system for generation of colored, especially amber or red light, comprising a radiation source and a fluorescent material 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 amber to red emitting a rare earth metal-activated oxonitridoalumosilicate of general formula (Ca1−x−y−zSrxBayMgz)1−n(Al1−a+bBa)Si1−bN3−bOb:REn, wherein 0≦x≦1, 0≦y≦1, 0≦z≦1, 0≦a≦1, 0
摘要:
A dielectric barrier Xe discharge lamp include discharge vessel with a gas filling containing Xe or a Xe/Ne mixture and a luminescent layer of a UV-B phosphor emitting in the UV-B range 280 to 320 nm. The luminescent layer includes a Gd3+ activated phosphor according to at least one the formulas of (Y1-x-yGdxSy)Al3(BO3)4, (La1-x-yGdxSy)Al3(BO3)4, (La1-x-yGdxSy)B3O6, (Y1-x-y-zGdxSyLuz)PO4, (Y1-x-y-zGdxSyLuz)BO3, (Y1-x-y-zGdxSyLuz)3Al5O12, Me(Y1-x-yGdxSy)F4 (Me=Li, Na, K; S═Bi, Nd, Pr; 0.0
摘要:
The invention relates to a device for generating images and/or projections, which device includes a device for the detection of input radiation. The device for the detection of input radiation comprises a sensor with a Pr3+-activated scintillator for converting the input radiation into UV radiation. The Pr3+-activated scintillators have short excitation and decay times.
摘要:
The invention relates to a plasma display screen comprising a carrier plate, a transparent front plate, a ribbed structure which divides the space between the carrier plate and the front plate into plasma cells that are filled with a gas, one or more electrode arrays to generate corona discharges in the plasma cells, and a phosphor layer which comprises a phosphor selected from the group composed of doped terbium(III)-activated phosphors of the general formula (In1-x-y-zGdyYz)BO3: Tbx, where 0 0. The invention also relates to a phosphor selected from the group composed of doped terbium(III)-activated phosphors of the general formula (In1-x-y-zGdyYz)BO3: Tbx, where 0 0.
摘要:
A plasma picture screen fitted with a phosphor layer comprising a red phosphor activated by Eu3+ shows an improved red color point (x≧0.64 and y≦0.35) and shorter decay times &tgr;1/10 as compared with the standard phosphor (Y,Gd)BO3. The phosphor according to the invention has a lattice in which the activator Eu3+ occupies a location which has no inversion symmetry.