摘要:
The invention relates to photonic materials with regularly arranged cavities, containing at least one colorant. The wall material of the photonic material has dielectric properties and acts as such in an essentially non-absorbing manner for the wavelength of an absorption band of the respective colorant and is essentially transparent to the wavelength of an emission of the colorant, which can be excited by the absorption wavelength, and the cavities are formed in such a manner that radiation of the wavelength of the weak absorption band of the colorant is stored in the photonic material. The invention also relates to the use of these photonic materials as luminous substance system in an illuminant, to corresponding illuminants and to production methods.
摘要:
The invention relates to a method for incorporating nanophosphors in microoptical structures and corresponding illumination means. In this impregnation process, a microoptical system of inverse opal powders is filled with a dispersion of a nanophosphor.
摘要:
The invention relates to a white emitting light source with an improved luminescent material of the formula (AEN2/3)*b (MN)*c (SiN4/3)*d1 CeO3/2*d2 EuO*x SiO2*y AlO3/2 wherein AE is an alkaline earth metal chosen of the group of Ca, Mg, Sr and Ba or mixtures thereofand M is a trivalent element chosen of the group of Al, B, Ga, Sc withd1> 10* d2. In combination with a UV to blue light generating device this material leads to an improved light quality and stability, especially an improved temperature stability for a wide range of applications.
摘要:
This invention relates to a device for determining the conversion power of conversion element, a method for performing these measurements and a method for producing pcLEDs with essentially the same color point applying said device and said method. The device comprises a light source (5), a sample holder (6) and a detector element (7), wherein the light source (5) illuminates the sample holder (6) with a primary light (41), the sample holder (6) is at least locally transparent for a primary light (41), suitable to mount the multitude of conversion elements (3) capable to partly convert the primary light (41) into a secondary light (42), and comprises suitable prevention means (62, 62a, 62b, 62c, 62d, 62e) to prevent a light guiding of the secondary light (42) from one mounted conversion element (3) through the sample holder (6) to another mounted conversion element (3), and the detector element (7) is suitable to measure the intensities of primary and secondary light (41, 42) for each conversion element (3) separately.
摘要:
Electroluminescence light source having a transparent substrate (2), an electroluminescent layer structure for emitting light throughthe substrate, a first light outcoupling layer (3) arranged between substrate and electroluminescent layer structure for producing a non-uniform angular distribution of the light upon entry of the light into the substrate (2), and a second light outcoupling layer (1) arranged above the substrate (2) when viewed in the direction of propagation of light (7), with a surface structure adapted to the non-uniform angular distribution of the light for the effective light outcoupling from the electroluminescence light source.
摘要:
A color cathode ray tube, that is fitted with a color screen that comprises a glass face panel, a phosphor coating and a UV-reflective layer that is arranged between the glass face panel and the phosphor coating, the UV-reflective layer containing colloid particles of an oxygen-containing material, having a grain size d
摘要:
The invention relates to a white emitting light source with an improved luminescent material of the formula (AEN2/3)*b (MN)*c (SiN4/3)*d1 CeO3/2*d2 EuO*x SiO2*y AlO3/2 wherein AE is an alkaline earth metal chosen of the group of Ca, Mg, Sr and Ba or mixtures thereofand M is a trivalent element chosen of the group of Al, B, Ga, Sc withd1> 10* d2. In combination with a UV to blue light generating device this material leads to an improved light quality and stability, especially an improved temperature stability for a wide range of applications.
摘要:
The invention relates to a LED comprising a substrate (10), a first electrode layer and a thin colloidal layer (20) located between the substrate and the first electrode layer, wherein the LED further comprises a smoothing means located within the colloidal layer and/or between the colloidal layer and the first electrode layer so that the outer surface of the colloidal layer facing the first electrode layer has a roughness Ra ≤ 30 nm and Ra ≥1 nm, preferably Ra ≤ 10 nm and Ra ≥ 3 nm and more preferably Ra ≤ 5 nm and Ra ≥ 3 nm.
摘要:
The invention is concerned with a low-pressure mercury vapor discharge lamp comprising a light-transmitting discharge vessel, said discharge vessel enclosing, in a gastight manner, a discharge space provided with a filling of mercury, at least a part of wall of the discharge vessel being provided with a luminescent composition comprising a first UV-A phosphor of the general formula (Gdl-x-y-zYxLuy)P04:Cez, wherein 0 ≤ x