Abstract: A pyrolytic oven comprises a housing and a muffle delimiting a cooking chamber inside the housing. A lighting module serves to illuminate the cooking chamber, wherein the lighting module has a cooling structure with an arrangement of cooling extensions formed in particular as pins or ribs, which project into a gap between housing and muffle and have a convection effect in a cooking mode of the oven. A fan device of the oven is configured and controlled to generate an air flow encountering the cooling structure in the gap in a pyrolytic mode of the oven. The cooling structure of the lighting module further has a wall formation, which in pyrolytic mode generates a wind shadow relative to the air flow for a number of cooling extensions of the cooling structure arranged distributed in a transverse plane to the flow direction of the air flow.

Abstract: A luminaire for installation in an electrical household appliance, e.g. a washing machine, includes, in one embodiment, two light-emitting diodes mounted on a circuit board, an elongated luminaire housing having a light exit area, which is formed by a light-permeable piece of the housing wall, in an area of a first longitudinal end of the luminaire housing, and also a light-conducting body having a light-conducting tube which extends inside the luminaire housing and which conducts, towards the light exit area, light which is given off by the light-emitting diodes. In one embodiment, a metalizing layer provided on the inner peripheral face of the light-conducting tube rests, in heat-transmitting contact with one or more conductive traces, on the upper side of the circuit board. In addition to its light-conducting function, the light-conducting tube thus fulfills a function for discharging heat from the circuit board.

Abstract: A lighting device for fitting into a wall surface of a domestic electrical appliance, in particular a refrigerator or/and freezer, includes a window pane for the emergence of light, a light source arrangement having at least one light-emitting diode, and a light reflection surface, arranged behind the window pane and irradiated by the light-emitting diode, for reflecting light in the direction towards the window pane. The light reflection surface has regions of different reflection behaviour, where in some embodiments the light reflection surface is divided into a glossy region closer to the light-emitting diode(s) and a scattering region further away from the light-emitting diode(s).

Abstract: A domestic oven includes a muffle which delimits a cooking chamber, and a lighting device for illuminating the cooking chamber. The muffle has in a muffle side wall a light outlet window into which a window element having a light outlet surface is fitted. The lighting device includes a light source which, when viewed normally to the muffle side wall, is arranged outside the contour of the light outlet window, a reflective surface with a diffuse reflecting property which is arranged behind the light outlet surface within the contour of the light outlet window and is irradiated with light from the light source, and a lens element with a collecting property which is arranged in the light path between the light source and the reflective surface. In some embodiments, the lens element is also arranged outside the contour of the light outlet window.

Abstract: An electrical household appliance includes an appliance body having a body interior, into which a shelf for storing objects is inserted, and an illumination device having a light source, and a light-directing structure which couples one portion of the light generated by the light source into a narrow side of the shelf, and directs another portion of the light generated by the light source into the body interior.

Abstract: An electrical household appliance includes an appliance body having a body interior, into which a shelf for storing objects is inserted, and an illumination device having a light source, and a light-directing structure which couples one portion of the light generated by the light source into a narrow side of the shelf, and directs another portion of the light generated by the light source into the body interior.

Abstract: A luminaire for installation in an electrical household appliance, e.g. a washing machine, includes, in one embodiment, two light-emitting diodes mounted on a circuit board, an elongated luminaire housing having a light exit area, which is formed by a light-permeable piece of the housing wall, in an area of a first longitudinal end of the luminaire housing, and also a light-conducting body having a light-conducting tube which extends inside the luminaire housing and which conducts, towards the light exit area, light which is given off by the light-emitting diodes. In one embodiment, a metalizing layer provided on the inner peripheral face of the light-conducting tube rests, in heat-transmitting contact with one or more conductive traces, on the upper side of the circuit board. In addition to its light-conducting function, the light-conducting tube thus fulfils a function for discharging heat from the circuit board.

Abstract: The invention relates to an electrical household appliance, namely a refrigeration and/or freezer device or a stove, comprising at least one luminous plate (24) illuminating an interior of the appliance, and a light source device (30) feeding light into at least one narrow side of the luminous plate. According to the invention, the light source device includes at least one light-emitting diode (32) and a lens optics, which collects at least a major portion of the light emitted by the light-emitting diode, directing the light to at least one narrow side of the luminous plate.

Abstract: An optical sensor for use in a washing machine or dishwasher comprises a housing, a light-emitting element, a light-receiving element and a light-conducting structure, which is made from a transparent material, having a light entry point, a first reflection surface, a second reflection surface and a light exit point. A light measurement path runs from the light-emitting element, via the light entry point, the first reflection surface, the second reflection surface and the light exit point, to the light-receiving element wherein the light undergoes total reflection on the first reflection surface and on the second reflection surface and where a light beam that runs from the first reflection surface to the second reflection surface has a cross-sectional area of not less than 0.9 mm2.

Abstract: An optical sensor to measure the turbidity of wash water in a household washing machine or dishwasher, includes a housing having a housing interior containing a measurement module having a light-emitting element and a light-receiving element, the measurement module defining a measurement light path which extends from the light-emitting element to the light-receiving element and passes outside the housing over a part of its path length. The light-emitting element and the light-receiving element are arranged together in a first subspace of the housing interior, and the measurement light path extends over a part of its path length through at least one second subspace of the housing interior, which is sealed from the first subspace. All the electrical/electronic components of the measurement module are fitted in the first subspace, so that any ingress of wash water into the second subspace does not compromise the electrical functionality of the sensor.

Abstract: An optical sensor to measure the turbidity of wash water in a household washing machine or dishwasher, includes a housing having a housing interior containing a measurement module having a light-emitting element and a light-receiving element, the measurement module defining a measurement light path which extends from the light-emitting element to the light-receiving element and passes outside the housing over a part of its path length. The light-emitting element and the light-receiving element are arranged together in a first subspace of the housing interior, and the measurement light path extends over a part of its path length through at least one second subspace of the housing interior, which is sealed from the first subspace. All the electrical/electronic components of the measurement module are fitted in the first subspace, so that any ingress of wash water into the second subspace does not compromise the electrical functionality of the sensor.

Abstract: An optical sensor (10) for fitting to a washing machine or dishwasher is proposed, comprising: a housing (16), an arrangement, which is housed in the housing, of optical components, the optical components comprising a controllable light emitter (26) and a first and a second light receiver (28, 30), and an electronic analysis and control unit (36) which is connected to the light emitter (26) and the two light receivers (28, 30), the first light receiver (28) being arranged at the end of a first light measurement path (54) which starts at the light emitter (26) and runs on a portion outside the housing (16), and the second light receiver (30) being arranged at the end of a second light measurement path (56) which starts at the light emitter (26), and when the sensor is fitted to the machine as specified, the first light measurement path running on a portion through a washing space (14) of the machine, and is the second light measurement path running completely outside this washing space, the analysis and contro

Abstract: An optical sensor (10) for fitting to a washing machine or dishwasher is proposed, comprising: a housing (16), an arrangement, which is housed in the housing, of optical components, the optical components comprising a controllable light emitter (26) and a first and a second light receiver (28, 30), and an electronic analysis and control unit (36) which is connected to the light emitter (26) and the two light receivers (28, 30), the first light receiver (28) being arranged at the end of a first light measurement path (54) which starts at the light emitter (26) and runs on a portion outside the housing (16), and the second light receiver (30) being arranged at the end of a second light measurement path (56) which starts at the light emitter (26), and when the sensor is fitted to the machine as specified, the first light measurement path running on a portion through a washing space (14) of the machine, and is the second light measurement path running completely outside this washing space, the analysis and contro

Abstract: An optical sensor for use in a washing machine or dishwasher comprises a housing, a light-emitting element, a light-receiving element and a light-conducting structure, which is made from a transparent material, having a light entry point, a first reflection surface, a second reflection surface and a light exit point. The light-emitting element, the light-receiving element and the light-conducting structure define a light measurement path that runs, in this sequence, from the light-emitting element, via the light entry point, the first reflection surface, the second reflection surface and the light exit point, to the light-receiving element. In this case, on a section located between the first and the second reflection surface, the light measurement path runs outside the housing. The light that reaches the light-receiving element, along the light measurement path, from the light-emitting element undergoes total reflection on the first reflection surface and on the second reflection surface.

Abstract: The invention relates to a transmission sensor (1) for measuring the turbidity of a fluid, comprising a first and a second measuring section (2, 3). A transmitter (6) emits electromagnetic radiation into the two measuring sections (2, 3). A first receiver (14) is allocated to the first measuring section (2) and a second receiver (15) is allocated to the second measuring section (3). The transmitter (6) is inserted into a transmitter carrier (8) in such a way that the transmitter (6) is forced to adopt a predetermined oriented position. The receivers (14, 15) are inserted into a receiver carrier (18) in such a way that each of said receivers (14, 15) is forced to adopt a predetermined oriented position. A transmitter carrier holder (9) forcibly positions the transmitter carrier (8) in a predetermined location and a receiver carrier holder (19) forcibly positions the receiver carrier (18) in a predetermined location.

Abstract: The invention relates to a transmission sensor (1) for measuring the turbidity of a fluid, comprising a first and a second measuring section (2, 3). A transmitter (6) emits electromagnetic radiation into the two measuring sections (2, 3). A first receiver (14) is allocated to the first measuring section (2) and a second receiver (15) is allocated to the second measuring section (3). The transmitter (6) is inserted into a transmitter carrier (8) in such a way that the transmitter (6) is forced to adopt a predetermined oriented position. The receivers (14, 15) are inserted into a receiver carrier (18) in such a way that each of said receivers (14, 15) is forced to adopt a predetermined oriented position. A transmitter carrier holder (9) forcibly positions the transmitter carrier (8) in a predetermined location and a receiver carrier holder (19) forcibly positions the receiver carrier (18) in a predetermined location.