Abstract: According to an example embodiment there is a semiconductor component, which is arranged in a semiconductor body, with at least one source zone and with at least one drain zone which in each case is a first conductivity type, with at least one body zone of a second conductivity type arranged in each case between source zone and drain zone, and with at least one gate electrode insulated with an insulating layer relative to the semiconductor body. The insulating layer is a consolidated, preferably sintered, layer containing quantum dots.

Abstract: The present invention is directed towards an uniaxial pressing and heating apparatus for the production of ceramic materials comprising a heater (4), a mould (5) and a die (3), wherein a mould (5) is arranged inside a heater (4) and the mould (5) receives a die (3) at at least one opening and wherein the die (3) is actuated under pressure into the mould (5), wherein the ratio of the length of the heater (4) and the length of the mould (5) is from ?1.5 to ?4. The invention is further directed towards a process for the production of ceramics and towards a ceramic material.

Abstract: An illumination device (1) for illuminating an object comprising a light source (2) to emit light (21), an adjustable optical element (3) for adjusting the light (21) originated from the light source (2) into adjusted light (31), and a controller (4) for controlling at least one element of a group of elements comprising the adjustable optical element (3) and the light source (2) in response to an adjusting control signal (71) via at least one driving signal (75, 76).

Abstract: The present invention relates to a fluorescent ceramic having the general formula Gd2O2S doped with M, whereby M represents at least one element selected form the group Ce, Pr, Eu, Tb, Yb, Dy, Sm and/or Ho, whereby said fluorescent ceramic comprises a single phase in its volume; to a method for manufacturing a fluorescent ceramic using single-axis hot pressing; a detector for detecting ionizing radiation and to a use of said detector for detecting ionizing radiation. The method for manufacture of a fluorescent ceramic material using a single-axis hot pressing, comprises the steps: a) selecting a pigment powder of Gd2O2S doped with M, and M represents at least one element selected from the group of Eu, Tb, Yb, Dy, Sm, Ho, Ce and/or Pr, whereby the grain size of said powder used for hot-pressing is of 1 ?m, and said hot-pressing is carried out at—a temperature of 1000° C. to 1400° C.; and/or—a pressure of 100 Mpa to 300 MPa; air annealing at a temperature of 700° C. to 1200° for a time period of 0.

Abstract: The present invention is directed to a Gd2O2S:M fluorescent ceramic material with a very short afterglow, wherein M represents at least one element selected from the group Pr, Th, Yb, Dy, Sm and/or Ho and the Gd2O2S:M fluorescent ceramic material comprises further: europium of ?1 wt. ppm based on Gd2O2S, and cerium of ?0.1 wt. ppm to ?100 wt. ppm based on Gd2O2S, wherein the content of cerium is in excess of the content of europium with a ratio of europium to cerium of 1:10 to 1:150.

Abstract: Illumination system comprising a radiation source and a luminescent material comprising a first phosphor capable of absorbing part of the light emitted by the radiation source and emitting light of a wavelength different from that of the absorbed light; wherein said first phosphor comprises europium(III) as an activator in a host lattice selected from the compounds of an anionic oxygen-containing species with a cationic metal species, comprising yttrium(III) and gadolinium(III). A light-emitting diode as a radiation source is especially contemplated. The invention also relates to a red to amber yellow emitting europium(III)-activated phosphor comprises europium(III) as an activator in a host lattice selected from the compounds of an anionic oxygen-containing species with a cationic metal species, comprising yttrium(III) and gadolinium(III).

Abstract: 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.

Abstract: The invention describes a light-emitting device (1) which comprises a light-emitting diode and a phosphor layer. To prolong the useful life of the light-emitting device (1), a phosphor (4) in the phosphor layer (2) has a water-resistant coating.

Abstract: A semiconductor device, which is arranged in a semiconductor body (1), and which comprises at least one source region (4) and at least one drain region (5), each being of the first conductivity type, and at least one body (8) of the second conductivity type, arranged between source region (4) and drain region (5), and at least one gate electrode (10) which is isolated with respect to the semiconductor body (1) via an isolation layer (9). Said isolation layer (9) comprises polarizable particles, which are composed of a nanoparticulate isolating core and a sheath of polarizable anions or polarizable cations. The isolation layer (9) exhibits a high dielectric constant ?.

Abstract: A gas discharge lamp has a gas discharge vessel filled with a gas filling suitable for a gas discharge which emits VUV radiation, with a phosphor coating containing a downconversion phosphor. The downconversion phosphor has, in a host lattice, a pair of activators of a first lanthanoid ion and a second lanthanoid ion; a sensitizer selected from the group formed by the thallium(I) ion, lead(II) ion and bismuth(III) ion; and samarium(II) ion co-activator.

Abstract: 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.

Abstract: 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.

Abstract: A low-pressure mercury discharge lamp comprising an inner bulb, which forms a gas discharge vessel and the wall of which is made of a material which is transparent to electromagnetic radiation and is coated with a phosphor, and comprising an outer bulb surrounding the inner bulb, the wall of which contains an UV-A phosphor, and comprising means for generating and maintaining a low-pressure mercury gas discharge.

Abstract: A low-pressure gas discharge lamp comprising a gas discharge vessel with a gas filling containing an indium compound and a buffer gas, and comprising a phosphor layer containing at least one phosphor emitting in the visible range of the spectrum, and comprising electrodes and means for generating and maintaining a low-pressure gas discharge.

Abstract: A gas discharge lamp fitted with a gas discharge vessel filled with a gas filling suitable for a gas discharge which emits VUV radiation, with a phosphor coating containing a downconversion phosphor and with means for igniting and maintaining a gas discharge, in which the downconversion phosphor has, in a host lattice, a pair of activators of a first lanthanoid ion and a second lanthanoid ion and a sensitizer selected from the group formed by the thallium(I) ion, lead(II) ion and bismuth(III) ion, is environmentally friendly and has a high lamp efficiency &eegr;lamp.

Abstract: 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<x≦0.5 and M=Li, Na, K, Rb and Cs; BaMg1−yMyAl10O17−0.5y:Eu with 0<y≦0.5 and M=Li, Na, K, Rb and Cs; and BaMgAl10−zNzO17−0.5z:Eu with 0<z≦5.0 and N=Mg, Ca, Sr, Ba and Zn has an improved blue color point and color contrast. The invention also relates to 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<x≦0.

Abstract: A low-pressure mercury-vapor discharge lamp has a discharge vessel with a filling of mercury and an inert gas. Electrodes in the discharge space have electrode shields, which operate at temperatures above 450° C. An inner surface of the electrode shield may have a heat-absorbing coating, for example a carbon film. The electrode shield may be supported by a support wire, at least a part of which is made from stainless steel. A lamp according to the invention has comparatively low mercury consumption.

Abstract: A gas discharge lamp fitted with a gas discharge vessel filled with a gas filling is suitable for a gas discharge which emits VUV radiation, with a luminophore coating containing a down conversion luminophore and with means for igniting and maintaining a gas discharge in which the down conversion luminophore has in a host lattice a pair of activators of the a first lanthanoid ion and a second lanthanoid ion and a sensitizer selected from the group of the copper (I) ion, silver (I) ion, gold (I) ion, zinc (II) ion, gallium (III) ion, indium (III) ion, thallium (III) ion, germanium (IV) ion, tin (IV) ion and lead (IV) ion, is environmentally friendly and has a high lamp efficiency &eegr;lamp.

Abstract: A plasma display screen including 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, which are filled with a gas, and including one or more electrode arrays for generating corona discharges in the plasma cells, and including a phosphor layer which includes a phosphor for generating red radiation selected from the group formed by rare earth metal borates of the general formula EA M11-x-yM2xEuyB9O16, where EA=Ca, Sr, Ba; M1=Gd, La; M2=Y, Lu, Sc, In and 0<x≦0.5, 0.01≦y≦0.4, and M31-r-sYrEusBO3, where M3=Sc,, In, Lu and 0.01≦r≦0.99, 0.01≦s≦0.15, is characterized by a red point which has shifted in the direction of a higher color saturation. In addition, the color contrast at brighter ambient lighting conditions is increased.