Abstract: A lamp (10) is disclosed with a single or double-sided socket, whereby a bulb element (11) is arranged on the at least one socket (12), which surrounds a volume of space (14) and said lamp is provided with at least one LED element (13). An irradiation of the LED light into the bulb element occurs and, as a result of reflection, in particular total reflection, on the defining surfaces (16,17) of the bulb element a transmission of the LED light within the bulb element occurs.

Abstract: The operating method is based on the simultaneous use of FM and AM and is distinguished by passing through a number of steps which are used to find an optimum frequency for the AM and, in addition, to define an optimum AM level. An electronic ballast which has a memory module which can be overwritten is used for implementation.

Abstract: The invention relates to a new design of discharge vessel for a discharge lamp, in which dielectrically impeded discharges are to be generated. In this case, a discharge vessel plate 1, 9 is, as it were, of two-fold design, specifically as a first discharge vessel plate 1 with an external electrode set and, in addition, as a stabilizing plate 9 outside the first discharge vessel plate 1.

Abstract: The present invention relates to novel discharge structures for dielectric barrier discharge lamps, in which discharge electrode sections, which are associated with the individual discharges, of the respective electrode strips overhang adjacent sections of the electrode strips.

Abstract: A process for producing a discharge lamp which is designed for dielectric barrier discharges in which, during a filling step, before the discharge chamber is closed, a part of the discharge vessel is held in a raised position by a support element which is then at least partially softened, in order for the part which is being held in a raised position to be lowered. The support element lies outside the discharge chamber.

Abstract: The LED has phosphor particles (2) with a mean phosphor particle size d50 selected from the range of from 0.1 ?m, inclusive, to 1.5 ?m, inclusive, in particular the phosphor particles having primary particles (4) with a mean particle size (5) selected from the range of from 0.1 ?m, inclusive, to 1.0 ?m, inclusive. The primary particles, which comprise, for example, an yttrium aluminum garnet (Y3Al5O12) doped with cerium, are agglomerated to form the phosphor particles.

Abstract: A phosphor for light sources, the emission from which lies in the short-wave optical spectral region, as a garnet structure A3B5O12. It is activated with Ce, the second component B representing at least one of the elements Al and Ga, and the first component A is terbium or terbium together with at least one of the elements Y, Gd, La and/or Lu. In a preferred embodiment, a phosphor having a garnet of structure (Tb1?x?yRExCEy)3(Al,Ga)5O12, where RE=Y, Gd, La and/or Lu; 0?x?0.5?y; 0<y<0.1 is used.

Abstract: A dielectric barrier discharge lamp with a discharge vessel (1) has at least one inner electrode (5a; 5b) which is covered with a dielectric layer (6a; 6b) and is arranged on the inner side of the discharge vessel (1) The at least one inner electrode (5a; 5b) is electrically conductively connected to a supply conductor (8a; 8b) in a leadthrough region, the leadthrough region being realized by a gastight pinch (9).

Abstract: A base for a headlight lamp, which has a plastic base part having at least two electrical connections, which have a first end with a contact face, the first ends protruding from the base part when mounted such that the contact faces are perpendicular to the longitudinal extent of the headlight lamp, and a second end to be connected to a power supply wire and extends parallel to the longitudinal extent of the headlight lamp. For each electrical connection, the first and second ends are connected to one another by a central section, and these central sections are embedded in the plastic of the base part and the second ends are bent back from the respective central section.

Abstract: A phosphor for light sources, the emission from which lies in the short-wave optical spectral region, as a garnet structure A3B5O12. It is activated with Ce, the second component B representing at least one of the elements Al and Ga, and the first component A is terbium or terbium together with at least one of the elements Y, Gd, La and/or Lu. In a preferred embodiment, a phosphor having a garnet of structure (Tb1-x-yRExCey)3(Al,Ga)5O12, where RE=Y, Gd, La and/or Lu; 0?x?0.5-y; 0<y<0.1 is used.

Abstract: The invention relates to a luminescence conversion led based illumination deice that emits primarily radiation in the range of from 370 and 430 nm of the optical spectrum (peak wavelength). Said radiation is converted to radiation having a longer wavelength using three luminescent substances that emit in the red, green and blue range.

Abstract: The invention relates to a reflector for an infrared radiator, having a blackened Eloxal layer, and to an infrared radiator having a halogen incandescent lamp as radiation source and such a reflector.

Abstract: The invention relates to a lamp, in particular a motor-vehicle headlight lamp, with a plastic part of which the surface is provided with a coating which contains at least one compound of a metal with oxygen or nitrogen. The coating has the effect of preventing gas emission from the plastic.

Abstract: The invention relates to a reflector lamp and to a method for producing such a reflector lamp, especially a simplified method for fixing the lamp (2) in the reflector (1). The gasket (22) of the lamp base (21) is disposed in the cavity (13) of the reflector neck (12) in such a manner that the at least one power lead (71, 72) projects from the reflector neck (12) through a passage and the lamp base (21) is supported on the inner wall (13) of the reflector (1) perpendicular to the longitudinal axis (A). A fastening element (81, 82) is fastened on the power lead (71, 72) at an angle to the longitudinal axis (A) and rests against the outer wall of the reflector neck (12). The lamp (2) is thus fixated in the reflector (1) in the longitudinal direction (A) without play and without any additional spring elements.

Abstract: The invention relates to a circuit for operation of a lamp with a component 4 to be cooled and with a heat sink 6, 6? which includes an angle of 10°–70° with a circuit board 1.

Abstract: A high-pressure discharge lamp for motor vehicle headlamps having a mercury-free ionizable fill which consists of xenon with a cold filling pressure of at least 2000 hPa and metal halides. The discharge vessel has a tubular section (10) which consists of a transparent ceramic and has an internal diameter which is less than or equal to 2 mm and inside which there are arranged electrodes with a spacing less than or equal to 10 mm.

Abstract: The invention relates to a circuit arrangement for operating electric lamps (5), in particular dielectric barrier discharge lamps, having an input stage (1) in the form of a voltage-increasing converter, in particular a step-up converter, and at least one subsequent further circuit stage (2), for example a flyback converter in the form of a pulse stage. An intermediate circuit overcurrent protection device (3) is connected between the step-up converter (1) and the flyback converter (2) and protects the flyback converter (2) in the event of a fault, specifically in particular if the input overcurrent protection device (1) does not respond.

Abstract: A low-pressure discharge lamp is described having a base housing (10), a discharge vessel (2), whose end sections are fixed to an end section of the base housing, and a contact-making system for making electrical contact with the lamp, which is located on the end section of the base housing (10) which is remote from the discharge vessel, a conductive section (5) being provided, which is electrically connected to the contact-making system and is arranged adjacent to the discharge vessel (2) in the base housing (10) in such a way that an electrical short circuit is formed around the discharge vessel (2). This makes it possible to reduce the starting voltage of the lamp. As an alternative, or in addition, to this, the cross section of the web attachments is increased, which also increases the rate of the luminous-flux run-up.

Abstract: A coupling element (2) is proposed for the combining of at least two elongate lamps with in each case two ends. For this purpose, the coupling element (2) has a continuous receptacle area which is provided for receiving an end of each lamp. The receptacle area comprises a reflector (6) in order to reduce the luminance decrease in the region between the lamp ends. With one or a plurality of coupling elements according to the invention in conjunction with two or more elongate lamps, illumination systems having different luminous lengths can be realized in a modular manner.

Abstract: A description is given of an illumination device which emits mixed-color light containing light of at least two different color channels (R, R1, G, G1, B, B1). The illumination device contains at least one primary light source (1) of a first color, the light of which forms a first color channel (R, R1, G, G1, B, B1), and at least one primary light source (1) of a second color, the light of which forms a second color channel (R, R1, G, G1, B, B1), at least one sensor device (3), which is positioned such that it can receive mixed-color light and is suitable for detecting brightness of light of a wavelength range comprising the color channels (R, R1, G, G1, B, B1) and which determines the brightnesses of the different color channels (R, R1, G, G1, B, B1) separately and repeatedly during operation.