Abstract: A glazing unit is provided for producing an aesthetically pleasing effect. The glazing unit may include at least one polymer with a first structured surface to which a photonic structure is applied. The surface can reflect a first partial spectrum of incident electromagnetic radiation, and can transmit a second partial spectrum of incident electromagnetic radiation. A reflected proportion corresponds to a higher harmonic and is in a visible spectral range.

Abstract: A glazing unit is provided for producing an aesthetically pleasing effect. The glazing unit may include at least one polymer with a first structured surface to which a photonic structure is applied. The surface can reflect a first partial spectrum of incident electromagnetic radiation, and can transmit a second partial spectrum of incident electromagnetic radiation. A reflected proportion corresponds to a higher harmonic and is in a visible spectral range.

Abstract: A glazing unit is provided for producing an aesthetically pleasing effect, comprising or consisting of at least one pane, said pane having a first structured surface to which a three-dimensional photonic structure is applied and the average refractive index of the photonic structure being higher than approximately 1.6 or higher than approximately 1.8 or higher than approximately 1.95. A method of producing such a glazing unit and the use thereof is also provided.

Abstract: A glazing unit is provided for producing an aesthetically pleasing effect, comprising or consisting of at least one pane, said pane having a first structured surface to which a three-dimensional photonic structure is applied and the average refractive index of the photonic structure being higher than approximately 1.6 or higher than approximately 1.8 or higher than approximately 1.95. A method of producing such a glazing unit and the use thereof is also provided.

Abstract: A photovoltaic cell may be provided that includes flat semiconductor substrates, each having a front face and a rear face, where at least one front face contact is arranged on the front face and at least one rear face contact is arranged on the rear face. Each semiconductor substrate may form a subarea of the photovoltaic cell and the semiconductor substrates may be electrically connected to one another in parallel, where the semiconductor substrates are arranged at a distance from one another, and at least two semiconductor substrates have a different shape and/or size. A photovoltaic module equipped with the photovoltaic cell may be provided, and to a method for producing the photovoltaic cell may be provided.

Abstract: A structural element with a controllable heat transfer coefficient comprises a frame. A first sheet and a second sheet opposite one another are arranged in the frame. The sheets and the frame have the effect of defining a closed-off volume which is filled with at least one gas. At least one two-dimensional element is arranged between the sheets. An upper intermediate space is formed between the two-dimensional element and the frame vertically upwardly and a lower intermediate space is formed between the two-dimensional element in the frame vertically downwardly. A first cavity is between the first sheet and the two-dimensional element. A second cavity is between the two-dimensional element and the second sheet. The cavities are connected via the upper intermediate space and the lower intermediate space such that a convection flows between the cavities via the intermediate spaces. At least one means arranged in the intermediate spaces controls the convection flow.

Abstract: A sun protection device is described including at least one optically transparent dielectric layer, which on both sides is joined with a structural layer of an opaque or only partially translucent material. The two structural layers are structured subject to the formation of light passage openings and light-impermeable zones in such a manner that optical radiation incident on the outer structural layer under a predetermined angular range is blocked through interaction of the two structural layers and a proportion of optical radiation, which is incident on the second structural layer under a different angular range is able to pass the structural layers unhindered. The sun protection device makes possible an angle-selective transmission of sun radiation to achieve an anti-glare effect and at the same time allowing vision in a downward direction without moving parts.

Abstract: The present invention relates to a sun collector comprising a flat absorber body (1) on or in which one or more absorber channels (17) for the flow of a heat transfer medium are configured. In areas which are not occupied by the one or more absorber channels (17), the absorber body (1) of the present sun collector has penetrable openings (4, 10, 13) for sunlight to pass through. The sun collector therefore provides the double function of a sun collector with a partially transparent sun protection device.

Abstract: The present invention relates to a sun collector comprising a flat absorber body (1) on or in which one or more absorber channels (17) for the flow of a heat transfer medium are configured. In areas which are not occupied by the one or more absorber channels (17), the absorber body (1) of the present sun collector has penetrable openings (4, 10, 13) for sunlight to pass through. The sun collector therefore provides the double function of a sun collector with a partially transparent sun protection device.

Abstract: The present invention relates to a sun protection device of at least one optically transparent dielectric layer (1, 7), which on both sides is joined with a structural layer (5, 6) of an opaque or only partially translucent material. The two structural layers (5, 6) are structured subject to the formation of light passage openings (14) and light-impermeable zones (12, 13) in such a manner that optical radiation incident on the outer structural layer (6) under a predetermined angular range is blocked through interaction of the two structural layers (5, 6) and a proportion of optical radiation, which is incident on the second structural layer (6) under a different angular range is able to pass the structural layers (5, 6) unhindered. The sun protection device makes possible an angle-selective transmission of sun radiation to achieve an anti-glare effect and at the same time allowing vision in a downward direction without moving parts.

Abstract: The present invention relates to a part-transparent static sun protection device of a flat base (1) which consists of a material that is impermeable to solar radiation and/or coated with a material of that type. The base comprises permeable openings (4, 10, 13) with an angle-selective permeability for the sunlight, wherein a maximum of the permeability lies at an angle of incidence of ?90° of the sunlight relative to the plane of the base (1). The openings, (4, 10, 13) with the present sun protection device are introduced in the base (1) through mere local machining. The proposed sun protection device can be easily adapted to the most varied requirements during manufacture.

Abstract: The present invention relates to a curtain which is suitable as shatter protection and has optical and thermal functionality. Curtains of this type are required in particular in order to protect buildings for example during terrorist attacks. This fundamentally relates to any type of building, in particular however, office buildings with large areas of glass. The fundamental concept of the present invention is to provide curtains which absorb the huge amount of energy, for example of an explosion, however also irreversible damage of the curtain being able to be accepted. It is thereby essential that the curtain absorbs the acting energy and inter alia prevents any possibly occurring fragments of a glass façade being thrown into the room and being able to injure people there. The curtain is configured for this purpose as an internally situated or externally situated curtain, advantageously as a slatted curtain/shutter or even as a roller blind.

Abstract: The invention relates to a sun protection device that has a plurality of segments that are spaced apart from one another parallel to their longitudinal direction and that are received so as to be rotatable about their longitudinal axis. The segments have respective segment top surfaces on which a plurality of optical concentrator structure elements from an at least partially transparent dielectric material, so-called CPCs (Compound Parabolic Concentrators) are provided. Said concentrators have a surface of incidence and one planar or curved receiving surface and are oriented with their receiving surface toward the segment top surface. The invention is characterized in that the segment top surface, at an angle to its longitudinal direction, is at least partially curved or edged, the segment top surface is reflecting or opaque, and the CPCs adjoin the segment top surface with their receiving surface directly or across at least one coupling layer or are spaced apart and disposed opposite the segment top surface.