摘要:
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.
摘要:
Disclosed is a sun protection device for transparent apertures in a building against direct incident sunlight entering the interior of the building, said device comprising at least one optical flat element (F) consisting of an at least partially transparent material, being installable in the region of said building aperture, and having two flat element sides facing each other, of which one (E) is designed non-structured and plane, and the other (S) being provided with prismatic linearly extending structural elements (SE) running in parallel and recurring periodically in lateral direction. The invention is distinguished in that the structured flat element side (S) is provided, facing the unstructured plane, designed flat element side (E), with an at least largely coparallel surface (O), over which the structural elements (SE) project, that the structured elements (SE) have a triangular cross section area having a lateral edge (C), which coincides with the surface (O), as well as two lateral flanks (A,B) protruding above the surface, with a defining surface (A*) being assigned to the lateral flank (A) and a defining surface (B*) being assigned to the lateral flank (B), that the at least two adjacent structural elements are laterally separated by a flat section (D) of the surface (O), and that the lateral flank (A) forms an angle 90°-α with the surface, an angle α+β with the lateral flank (B) and the lateral flank (B) forms an angle 90°-β with the surface.
摘要:
Described is a device for guiding light consisting of at least one partially translucent surface material, with a surface upper side, which has optically active surface structures for guiding and/or scattering light, as well as an optically switchable coating provided at least in partial areas of the surface structures, or at least two directly or indirectly opposing surface upper sides, of which one exhibits optically active surface structures for guiding and/or scattering light, and the other provides an optically switchable coating that covers at least parts of the surface upper side.
摘要:
The invention relates to a novel method for producing microhole structures. According to said method, the material used to produce said microhole structures is applied to a substrate surface provided with a relief structure, by means of an angular coating process. In order to achieve the desired pattern of holes, the relief structure has a continuous network of first surface elements and second surface elements located thereinbetween, the local surface normal vectors of the first surface elements forming a small angle with the unit vector, and the local surface normal vectors of the second surface elements forming a small angle with the direction vector of the coating.
摘要:
The present invention relates to a coating material containing (a) first oxidic particles formed by hydrolytic condensation, in a size range of 5-20 nm, (b) second particles with a diameter in the size range of 80-300 nm, (c) a first aqueous solvent in which the source material for the oxidic particles formed by hydrolytic condensation can be dissolved and which allows or promotes the hydrolysis and condensation thereof, and (d) at least one second solvent, selected among specifically defined alcohols, ethers, organic acids, esters, ketones, amines and amic acids and mixtures thereof. The invention relates in addition to a substrate supplied with a coating, particularly a glass suitable for the photovoltaic and warm water collector domain, wherein the coating is composed of at least two particle fractions, wherein the particles of the first fraction have a diameter in the size range of 5-20 nm, and the particles of the second fraction have a diameter in the size range of 80-300 nm, wherein the particles of the second fraction have an average distance from each other, measured from cone to cone of these particles, of on average 20-200 nm, and wherein the particles of the first particle fraction have pores with a pore radius distribution of which the maximum is between 1 and 6 nm. The coating of the substrate can be achieved by means of the named coating material.
摘要:
A Venetian type sunshade comprising a plurality of parallel lamellae with horizontally extending respective longitudinal axes, which are adapted to be rotated about their respective longitudinal axes using an adjusting mechanism. The lamellae, or a layer applied on the upper side of the lamellae, consists of a material transparent to sunlight. Each lamella has an upper side, a plurality of ribs, and a third face. Each rib has a first face arranged obliquely relative to the upper side of the lamella and adapted to be irradiated by the sun in an approximately vertical direction, and a second face which is arranged flush and at an acute angle of roughly 45° relative to the first flat element. The third face is approximately orthogonal to the second faces. Adjacent ribs define a mutual spacing which permits a low shade irradiation and emission through the first faces when there is approximately perpendicular irradiation of the first flat elements, with the optical connection between the mutual spacing being within the thickness between the upper side of a lamella and the third face.
摘要:
A glazing element, in particular, for facing building facades, having two nes enclosing a gaseous atmospheric intermediate space and having a predetermined layer on at least one pane surface facing the intermediate space. The glazing element is distinguished by the fact that the predetermined layer has a reactive layer applied on one pane and a catalytic layer applied on the reactive layer. The catalytic layer, depending on the composition of the gas atmosphere contained between the panes, activates in the reactive layer. The reaction changes the optical and/or electrical properties of the reactive layer, and varies the composition of the gas atmosphere in the intermediate space, thereby making the electrical and/or optical properties of the reactive layer variable.
摘要:
A method for manufacturing solar cell chips having an active surface area configured to directly convert solar energy into electrical energy. The method including cutting the solar cell chips out of a wafer using a laser such that the solar cell chips include a non-rectangular geometry. The non-rectangular geometry facilitate continuous cutting by the laser and maximizing a number of solar cell chips cut from the wafer.
摘要:
A coated glass product includes a glass substrate and a porous antireflection surface coating including SiO2-based particles having a first particle fraction including a first characteristic particle size range and a second particle fraction having a second characteristic particle size range that is different from the first characteristic particle size range. In addition, a method for producing the coated glass product is provided.
摘要:
The present invention relates to a method for producing light-scattering elements by holographic illumination of a layer (10) of a photo-sensitive material on a support plate (1) and subsequent development of the layer (10) in order to generating a surface structure. The method is distinguished in that the illumination occurs using at least two mutually coherent luminous beams (2,3) which have passed through one or a plurality of primary diffusers (8,9) respectively were reflected at one or a plurality of primary diffusers, the luminous beams (2,3) being irradiated from different directions and being at least partially superimposed on the layer (10) while forming an interference pattern. This method permits producing diffusers having a leveled scatter profile in a simple manner.