摘要:
In an UV-reflecting layer for discharge lamps, the layer comprises at least 0.1% by weight of Al2O3 and at least 0.1% by weight of a material having a higher refractive index than Al2O3, so that as large a proportion of UV light as possible can be reflected and as large a portion of visible light as possible can be emitted by the lamp.
摘要翻译:在用于放电灯的UV反射层中,该层包含至少0.1重量%的Al 2 O 3 3和至少0.1重量%的具有 比Al 2 O 3 3更高的折射率,使得尽可能大的紫外光比例被反射,并且可以发射尽可能大的一部分可见光 由灯。
摘要:
In an UV-reflecting layer for discharge lamps, the layer comprises at least 0.1% by weight of Al2O3 and at least 0.1% by weight of a material having a higher refractive index than Al2O3, so that as large a proportion of UV light as possible can be reflected and as large a portion of visible light as possible can be emitted by the lamp.
摘要翻译:在用于放电灯的UV反射层中,该层包含至少0.1重量%的Al 2 O 3 3和至少0.1重量%的具有 比Al 2 O 3 3更高的折射率,使得尽可能大的紫外光比例被反射,并且可以发射尽可能大的一部分可见光 由灯。
摘要:
An ultraviolet reflecting layer and a fluorescent lamp is described, comprising an envelope having an inner surface, means within the lamp envelope for generating ultraviolet radiation, a light emitting layer of a luminescent material for generating visible light when impinged by ultraviolet radiation, and said ultraviolet reflecting layer, located between the light emitting layer and the inner surface of the lamp envelope, wherein the ultraviolet reflecting layer comprises a metal phosphate and/or a metal borate, with the metal being selected from Sc, Y, La, Gd, Lu and Al, or combinations thereof. The phosphates or borates used in the ultraviolet reflecting layer may optionally be doped by a Tb3+ and/or Dy3+ activator, to further improve the quantum yield of the conversion of UV radiation into visible light.
摘要:
The invention relates to a luminaire (1) comprising a reflector body (9) having a reflecting part (2) provided with a light reflective coating (5), and comprising contact means (6) for electrically connecting a light source. The coating (5) comprises at least two, light reflective particle groups, the groups exhibiting a mutually different color because of an interference layer (12a-d) provided on the particles (10a-d) which is different for the respective groups. A white color impression of the coating (5) is obtainable when the groups are jointly used in relative proportions in the coating (5). The coating (5) does not suffer from intrinsic absorption, or from color shift.
摘要:
A light-emitting device is provided, comprising at least one light-emitting diode (100) for emitting light of a first color and a luminescent material (102) arranged on said at least one light-emitting diode to receive at least part of the light emitted by said light-emitting diode. The light-emitting device further comprises a filter (103) arranged to receive light emitted by said light-emitting diode (100) and transmitted through said luminescent material (102) and to absorb light of said first color. The filter comprises a pigment compound distributed in a matrix of silicon and oxygen atoms, in which matrix at least a portion of said silicon atoms are directly bonded to hydrocarbon groups.
摘要:
The subject of the present invention is a dielectric barrier discharge (DBD-) lamp (1) for generating and emitting an ultraviolet radiation with ignition aid comprising: a discharge gap (2) being at least partly formed and/or surrounded by at least an inner wall (5) and an outer wall (4), whereby at least one of the walls (4, 5) is a dielectric wall and at least one of the walls (4, 5) has an at least partly transparent part, a filling located inside the discharge gap (2), at least two electrical contacting means, a first mean for electrical contacting associated with the outer wall (4) and a second mean for electrical contacting associated with the inner wall (5), whereby at least one multifunctional means (3) is arranged adjacent to the discharge gap (2) functioning as guiding aid and as ignition aid.
摘要:
The invention relates to a high-pressure discharge lamp intended for use in assimilation lighting. According to the invention, the high-pressure discharge lamp has a discharge vessel with a long axis, enclosing a volume V wherein an ionizable filling comprising a buffer gas and an excess amount of a metal halide, which is selected from LiI, NaI and CaI2, is present, the discharge vessel having an inflated shape wherein at least the ends are non-cylindrical and curved towards the long axis at both ends, with an inner wall area A for which it holds that A/V
摘要翻译:本发明涉及一种旨在用于同化照明的高压放电灯。 根据本发明,高压放电灯具有长轴的放电容器,其包围体积V,其中选自LiI,NaI和CaCl 2的包含缓冲气体和过量金属卤化物的可电离填充物 存在,放电容器具有膨胀形状,其中至少端部是非圆柱形的并且在两端处朝向长轴弯曲,具有其保持为A / V <6.6的内壁区域A.
摘要:
The invention relates to a high pressure discharge lamp intended for use in assimilation lighting. According to the invention the high-pressure discharge lamp has a discharge vessel, which besides a buffer gas, comprises substantially LiI as metal halide or a mixture of LiI and NaI.
摘要:
A low-pressure mercury vapor discharge lamp has a light-transmitting discharge vessel (10) enclosing, in a gastight manner, a discharge space (13) provided with a filling of mercury and a rare gas. The discharge vessel comprises discharge means for maintaining a discharge in the discharge space. The discharge vessel is provided with a luminescent layer (17) comprising a mixture of at least a red and a green luminescent material. The red luminescent material comprises (Y,Gd)2O3:Eu. The green luminescent material comprises (Ba,Ca,Sr)2SiO4:Eu and/or (Sr,Ca,Ba,Mg,Zn)Si2N2O2:Eu. Particles of the green luminescent material are surrounded by a coating of aluminum oxide. Preferably, at least 50% of the particles of the green and red luminescent materials have an average diameter greater than or equal to approximately 5 μm. The mixture of the red and green luminescent materials render a low-pressure mercury-vapor discharge lamp with an improved lumen equivalent.
摘要翻译:低压汞蒸气放电灯具有以气密方式包围设置有汞和稀有气体的填充物的放电空间(13)的透光放电室(10)。 放电容器包括用于保持放电空间中的放电的放电装置。 放电容器设置有包括至少红色和绿色发光材料的混合物的发光层(17)。 红色发光材料包括(Y,Gd)2 O 3:Eu。 绿色发光材料包含(Ba,Ca,Sr)2 SiO 2:Eu和/或(Sr,Ca,Ba,Mg,Zn)Si 2 Eu 2 O 2。 绿色发光材料的颗粒被氧化铝的涂层包围。 优选地,绿色和红色发光材料的至少50%的颗粒具有大于或等于约5μm的平均直径。 红色和绿色发光材料的混合物使得具有改善的流明当量的低压汞蒸气放电灯。
摘要:
The low-pressure mercury vapor discharge lamp has a filling of mercury and an inert gas, and the glass discharge vessel (1) is provided on the inner surface (4) of the wall (3) with a film (6) of trifluoride and/or oxyfluoride of at least one element, which is trivalent at most, which is selected from lanthanides, lanthanum, scandium and yttrium. The film (6) counteracts transport of mercury from the discharge vessel to the wall (3) and of alkali from the wall (3) to the discharge vessel. In this manner, a decrease of the lamp's efficiency and of the service life are counteracted.