Abstract: A light-emitting element includes at least one flat light emitter having a first electrical contact portion formed on a side surface, and a housing partially surrounding the side surface of the flat light emitter, the housing including a second electrical contact portion formed on an inner surface of the housing and configured to mate with the first electrical contact portion.

Abstract: An illuminant may include at least one light-emitting element unit, which has a carrier, at least one light-emitting element arranged on the carrier and is surrounded by an encapsulating material, at least one contact area formed on the carrier, and at least one contact element arranged on the contact area, wherein the light-emitting element surrounded by the encapsulating material is electrically connected to the contact element via the contact area, and at least one mating contact element, wherein electrical contact can be made between the mating contact element and the contact element via a plug-type connection, wherein the contact element is a female connector element, and the mating contact element is a male connector element and having a plurality of pin contact elements, or the contact element is a male connector element and having a plurality of pin contact elements, and the mating contact element is a female connector element.

Abstract: An acoustic sensor includes a layer sequence which can be caused to vibrate, and at least one detection element which is in mechanical contact with the layer sequence and is designed to convert vibrations into electrical signals. The layer sequence is a radiation-emitting layer sequence.

Abstract: A holder element for holding at least one flat surface-light lamp includes: an elongate, flat plate body having an upper plate side and a lower plate side arranged opposite the upper plate side, and one or more lampholders, which can be fitted on the plate body, for mechanically holding and making electrical contact with a flat surface-light lamp, wherein an engagement portion is formed on each of the two longitudinal ends of the plate body and is formed by a cutout, which extends, in plan view, from the respective longitudinal end of the plate body over the entire width of the plate body in the direction toward the longitudinal center, such that the plate body can be connected at each of its two longitudinal ends to another, identically formed plate body so as to form a form-fitting connection formed by the engagement portions of the adjacent plate bodies.

Abstract: An illuminant may include at least one light-emitting element unit, which has a carrier, at least one light-emitting element arranged on the carrier and is surrounded by an encapsulating material, at least one contact area formed on the carrier, and at least one contact element arranged on the contact area, wherein the light-emitting element surrounded by the encapsulating material is electrically connected to the contact element via the contact area, and at least one mating contact element, wherein electrical contact can be made between the mating contact element and the contact element via a plug-type connection, wherein the contact element is a female connector element, and the mating contact element is a male connector element and having a plurality of pin contact elements, or the contact element is a male connector element and having a plurality of pin contact elements, and the mating contact element is a female connector element.

Abstract: In at least one embodiment, a light panel system includes a system carrier with a carrier front face. Multiple organic light emitting diodes are arranged in a uniform grid on the carrier front face. An electronics driver is fitted to or in the system carrier. The light panel system can be handled and mounted as a single unit.

Abstract: A light-emitting element may include at least one flat light emitter, and a housing. The flat light emitter is arranged in the housing in such a way that the housing surrounds a side surface of the flat light emitter partially. The flat light emitter is held in the housing by the side face of the light emitter, and electrical contact is formed therebetween. In order to form the electrical contact, a conductive surface element is arranged on the side surface of the light emitter and a conductive mating surface element is arranged on an inner surface of the housing, which inner surface points towards the side surface. The conductive surface element is guided over an edge region of the flat light emitter from an upper and/or lower side of an element of the flat light emitter to the side surface of the flat light emitter.

Abstract: A holder element for holding at least one flat surface-light lamp includes: an elongate, flat plate body having an upper plate side and a lower plate side arranged opposite the upper plate side, and one or more lampholders, which can be fitted on the plate body, for mechanically holding and making electrical contact with a flat surface-light lamp, wherein an engagement portion is formed on each of the two longitudinal ends of the plate body and is formed by a cutout, which extends, in plan view, from the respective longitudinal end of the plate body over the entire width of the plate body in the direction toward the longitudinal center, such that the plate body can be connected at each of its two longitudinal ends to another, identically formed plate body so as to form a form-fitting connection formed by the engagement portions of the adjacent plate bodies.