Abstract: A light-emitting semi-conductor diode comprising a light emitting chip at least partially surrounded by a transparent electronics protecting body on which a composite layer foil is disposed, the composite layer foil includes at its side facing away from the electronics protection body a carrier layer, which has a refraction index that is greater than the refraction index of the electronics protection body and, at the opposite side, an active layer of the same material of which the electronics protecting body consists.

Abstract: The invention relates to a lighting unit having at least one light source and at least one light guide following the source and at least partially surrounding it, said light guide including at least one light exit surface facing away from the source and at least approximately located centrally, surrounded by at least one externally located light exit surface. In addition, at least one externally located light exit surface comprises a plurality of surface elements adjacent to each other with or without offset. These surface elements are surface regions of curved solids. With the present invention, a compact lighting unit is developed that makes possible a uniformly high yield in a preassigned target region.

Abstract: A light-emitting semi-conductor diode comprising a light emitting chip at least partially surrounded by a transparent electronics protecting body on which a composite layer foil is disposed, the composite layer foil includes at its side facing away from the electronics protection body a carrier layer, which has a refraction index that is greater than the refraction index of the electronics protection body and, at the opposite side, an active layer of the same material of which the electronics protecting body consists.

Abstract: The invention relates to a light unit with a light-emitting diode comprising at least one non-glowing light source and with a light distribution body optically downstream to the light-emitting chip source, whereby the frontal area of the light distribution body facing away from the non-glowing light source has a hollow and whereby each periphery of the hollow comprises a total reflection surface for the light emitted from the non-glowing light source. For this purpose, the light distribution body is part of the light-emitting diode. The section of the light distribution body adjacent to the non-glowing light source has an elliptical section as an envelope curve in at least one cutting plane, which encompasses the optic axis. A compact light unit with a high degree of optical efficiency is developed with this invention.

Abstract: A method is disclosed for creating a light assembly including a light-emitting diode and a printed circuit board having conductors printed thereon. The method includes the steps of positioning the light-emitting diode on the printed circuit board. Once positioned, the light-emitting diode is connected to the printed circuit board. The light-emitted diode and the printed circuit board are positioned in a mold. A thermoplast is injected into the mold such that the thermoplast extends on both sides of the printed circuit board and over the light-emitting diode.

Abstract: The invention relates to a lighting unit having at least one light source and at least one light guide following the source and at least partially surrounding it, said light guide including at least one light exit surface facing away from the source and at least approximately located centrally, surrounded by at least one externally located light exit surface. In addition, at least one externally located light exit surface comprises a plurality of surface elements adjacent to each other with or without offset. These surface elements are surface regions of curved solids. With the present invention, a compact lighting unit is developed that makes possible a uniformly high yield in a preassigned target region.

Abstract: The invention concerns a method for producing an optical waveguide from a material which is flowable before final solidification, in a mold, wherein, on a first introduction of the flowable material at least one radiation-emitting emitter with its connecting means electrically contacting the emitter is surrounded by said material, and one or more additional introductions of one or more flowable materials take place in regions located outside the regions of the emitter and the connecting means. It is proposed that a coating material is monolithically joined to the optical waveguide during at least one of the introductions. The invention further concerns an optical waveguide.

Abstract: The invention relates to a vessel for receiving suspensions containing sos such as radioactive liquids. The vessel includes a bottom wall inclined towards an outlet opening formed therein and a spraying arrangement in the vicinity of the inner walls. In order to reliably discharge solid deposits on the bottom of the vessel while using a minimum of flushing liquid, the bottom of the vessel is provided with a channel extending in the direction toward the outlet opening. A flushing tube pointing into the channel is provided at the highest elevation thereof. The solid/liquid mixture is flushed out of the vessel with great effectiveness by means of a directed delivery of the flushing liquid into the channel.