Abstract: There is herein described a patterned thin-film wavelength converter which comprises a substrate having a first patterned surface with a first pattern, and a thin film deposited on the first patterned surface. The thin film consists of a wavelength converting material and has a second patterned surface that is distal from the substrate. The second patterned surface has a second pattern that is substantially the same as the first pattern of the substrate. An advantage of the patterned thin-film wavelength converter is that post-deposition processing is not required to produce a textured surface on the wavelength converting material. A method of making the patterned thin-film wavelength converter is also described.

Abstract: There is herein described a patterned thin-film wavelength converter which comprises a substrate having a first patterned surface with a first pattern, and a thin film deposited on the first patterned surface. The thin film consists of a wavelength converting material and has a second patterned surface that is distal from the substrate. The second patterned surface has a second pattern that is substantially the same as the first pattern of the substrate. An advantage of the patterned thin-film wavelength converter is that post-deposition processing is not required to produce a textured surface on the wavelength converting material. A method of making the patterned thin-film wavelength converter is also described.

Abstract: A light system, wherein a first device that partly converts radiation of a first group is disposed in front of a portion of the first group, wherein the first device includes a phosphor-containing layer that converts a portion of primary radiation into secondary radiation having a longer wavelength, wherein the second group emits radiation having a greater wavelength than the first group, a second device that partly converts primary radiation of the first group, the second device being in front of a portion of the first group, wherein a converter exhibits a temperature dependence based on a different temperature dependence of the refractive index of a phosphor and a matrix embedding the phosphor, and the phosphor and matrix have at room temperature a difference in the refractive index is small and at operating temperature the difference in the refractive index is at least 1.5 times that at room temperature.

Abstract: A light system based on at least two chips, in particular LEDs containing chips may include at least one first chip capable of emitting a primary radiation, a layer containing a phosphor mounted in front of the first chip, for converting the primary radiation of the first chip into secondary radiation, at least one second chip capable of emitting a second primary radiation with a greater wavelength than the primary radiation, wherein the layer is arranged spaced apart from the first chip, wherein the second chip is arranged in such a way that its radiation is substantially not absorbed by the phosphor.

Abstract: A lighting may include at least one semiconductor light source which emits primary light, at least one phosphor region spaced apart from the at least one semiconductor light source and serving for at least partly converting the primary light into secondary light, and at least one filter disposed downstream of the at least one phosphor region, wherein the at least one filter is partly reflective at least to the primary light.

Abstract: An LED light system may include a primary LED radiation source, in particular at least one blue- or UV-emitting semiconductor element, wherein a first dome of transparent or translucent material, which acts as a conversion element, is placed in front of the primary light source in the emission direction, wherein at least a part of the surface of the first dome is divided into at least two regions of different types, which comprise luminescent materials, the at least two regions including different luminescent materials for the conversion.

Abstract: A process of producing a radiation-emitting organic-electronic device having a first and a second electrode layer and an emitter layer includes: A) providing a phosphorescent emitter with an anisotropic molecule structure and a matrix material, B) applying the first electrode layer to a substrate, C) applying the emitter layer under thermodynamic control, with vaporization of the phosphorescent emitter and of the matrix material under reduced pressure and deposition thereof on the first electrode layer such that molecules of the phosphorescent emitter are in anisotropic alignment, and D) applying the second electrode layer on the emitter layer.

Abstract: In at least one embodiment of the organic light-emitting diode (10), the latter comprises a first electrode (1), which is formed with a metal, and a second electrode (2). In addition, the organic light-emitting diode (10) contains an organic layer sequence (3) located between the first electrode (1) and the second electrode (2). Moreover, the organic light-emitting diode (10) comprises a radiation-transmissive index layer (4), which is located on an outer side (11) of the first electrode (1) remote from the organic layer sequence (3). The average refractive index of the index layer (4) is greater than or equal to the average refractive index of the organic layer sequence (3). At least some of the electromagnetic plasmon radiation (P) generated by the organic light-emitting diode (10) passes through the index layer (4).

Abstract: A light system based on at least two chips, in particular LEDs containing chips, wherein a means for at least partially converting the radiation of a first chip is provided, wherein a layer containing a phosphor as conversion means is mounted in front of a first chip intended for the conversion, which phosphor-containing layer convers at least some of the primary radiation of the first chip into secondary radiation, wherein the second chip emits radiation with a greater wavelength than the first chip, wherein the layer is arranged spaced apart from the first chip, wherein the second chip is arranged in such a way that its radiation is substantially not absorbed by the phosphor.

Abstract: In at least one embodiment of the organic light-emitting diode (10), the latter comprises a first electrode (1), which is formed with a metal, and a second electrode (2). In addition, the organic light-emitting diode (10) contains an organic layer sequence (3) located between the first electrode (1) and the second electrode (2). Moreover, the organic light-emitting diode (10) comprises a radiation-transmissive index layer (4), which is located on an outer side (11) of the first electrode (1) remote from the organic layer sequence (3). The average refractive index of the index layer (4) is greater than or equal to the average refractive index of the organic layer sequence (3). At least some of the electromagnetic plasmon radiation (P) generated by the organic light-emitting diode (10) passes through the index layer (4).