One-way windows blinds made from tinted material that allows a user inside a room to see through the windows blinds outside but prevents people outside to view inside. Windows blind are one way and can operated by a remote control.

One-way windows blinds made from tinted material that allows a user inside a room to see through the windows blinds outside but prevents people outside to view inside. Windows blind are one way and can operated by a remote control.

A daylight redirecting window film having a layered structure with a total thickness of less than one millimeter and having a first optically transmissive film, a second optically transmissive film approximately coextensive with the first optically transmissive film, an intermediate layer of a relatively soft optically transmissive material disposed between the first and second optically transmissive films, a parallel array of linear three-dimensional structures formed in a space between the first and second optically transmissive films, a layer of an optically transmissive adhesive coating a surface of the first optically transmissive film, and a two-dimensional pattern of light scattering surface microstructures formed in an outer surface of the second optically transmissive film. The parallel array of linear three-dimensional structures defines a parallel array of linear channels, and each of the linear three-dimensional structures has a total internal reflection wall extending transversely through a portion of the layered structure.

A device for day lighting the interior of structure deploys reflective louvers that are spaced apart in stacks. The louvers include a coating or multilayer structure that is operative to reflect visible light but transmit IR light through the louver. The louvers also have a retro-reflective structure to return the IR light by reverse reflection in the opposite direction of the incident light, which is back toward the sun. The interior of the structure is more uniformly illuminated with visible light while the louvers and interior are not heated by IR light or radiation from the sun.

Laminates and their process of manufacture, with the laminates made with anti-ballistic materials, such as woven and unwoven fabrics. The laminates are provided with different structures, materials, bondings, and other features, and example methods of manufacturing those laminates efficiently and in mass quantities. The method of production is a process of laminating individual flexible sheets including anti-ballistic material (which may be of woven or unwoven cloth or thin solid sheets or foils comprised of one or more light-weight anti-ballistic materials) into a flexible laminate for use to protect people or spaces from ballistic objects such as bullets and shrapnel from weapons and other moderate to high-kinetic energy objects. Also, an anti-ballistic protection system for protecting an interior space in a building. The ballistic barrier includes the laminated material having a plurality of layers of lightweight, flexible, ballistic resistant material such as woven sheets which are secured together into the laminate using a adhesive, heat weld, or stitching. The ballistic barrier is configured to be in a compact retracted state which can be deployed to provide a protective state to protect against kinetic ballistic projectiles.

The invention relates to a planar preliminary product for producing focusing light-directing slats having a top side and an underside. The top side and the underside are the largest sides in terms of area. The top side has a groove structure having parallel grooves and ridges in a longitudinal direction and having a multiplicity of sidewalls F.sub.1 and F.sub.2. A respective pair of sidewalls F.sub.1 and F.sub.2 forms a common ridge projecting on the top side. The sidewalls F.sub.1 and F.sub.2 are in each case at an angle with respect to one another which is at least approximately constant along the transverse direction and longitudinal direction of the groove structure. The top side has an overall contour defined by the vertices of the ridges. The sidewalls F.sub.1 and F.sub.2 of adjacent pairs are at an angle γ with respect to one another. The sidewalls F.sub.1 and F.sub.2 are symmetrical with respect to one another in relation to an area of symmetry, which is oriented at right angles with respect to the overall contour and is arranged at the location lying in the centre between the sidewalls F.sub.1 and F.sub.2. The angle γ between all pairs of sidewalls F.sub.1 and F.sub.2 is at least approximately constant. The sidewalls have a surface, which surfaces specularly reflect light substantially according to the law of reflection that angle of incidence is equal to angle of reflection.

The invention relates to a planar preliminary product for producing focusing light-directing slats having a top side and an underside. The top side and the underside are the largest sides in terms of area. The top side has a groove structure having parallel grooves and ridges in a longitudinal direction and having a multiplicity of sidewalls F.sub.1 and F.sub.2. A respective pair of sidewalls F.sub.1 and F.sub.2 forms a common ridge projecting on the top side. The sidewalls F.sub.1 and F.sub.2 are in each case at an angle with respect to one another which is at least approximately constant along the transverse direction and longitudinal direction of the groove structure. The top side has an overall contour defined by the vertices of the ridges. The sidewalls F.sub.1 and F.sub.2 of adjacent pairs are at an angle γ with respect to one another. The sidewalls F.sub.1 and F.sub.2 are symmetrical with respect to one another in relation to an area of symmetry, which is oriented at right angles with respect to the overall contour and is arranged at the location lying in the centre between the sidewalls F.sub.1 and F.sub.2. The angle γ between all pairs of sidewalls F.sub.1 and F.sub.2 is at least approximately constant. The sidewalls have a surface, which surfaces specularly reflect light substantially according to the law of reflection that angle of incidence is equal to angle of reflection.

An anti-ballistic protection system for protecting an interior space in a building. The ballistic barrier includes a laminated material having a plurality of layers of lightweight, flexible, ballistic resistant material such as woven sheets which are secured together into the laminate using a adhesive, heat weld, or stitching. The ballistic barrier is configured to be in a compact retracted state which can be deployed to provide a protective state to protect against kinetic ballistic projectiles. The system may include an automated control system operably configured to change the state of the ballistic barrier from the retracted state to the protective deployed state, such that upon sensing a threatening event or condition triggers a transition from the retracted state to the deployed protective state such that in the protective state. The ballistic barrier in the deployed state is configured to be resistant to penetration by high-speed ballistic projectiles such as a bullet fired from a gun or a shrapnel from a bomb to protect the interior space.

The panel-layer system for thermal insulation of the shaded surface according to the invention comprises mounted to the outer side of the building envelope, especially a window, especially a roof window, a supporting construction in the form of at least two rigid and non-deformable rails, to which permanently mounted are lamellae, wherein the edge of the lamellae, outer in relation to the shielded envelope, has an irregular shape and the lamellae are inserted into notches made in the supporting construction and are additionally glued to it and the inclination angle of each lamella is constant, wherein for the lamellae situated in the upper part of the building envelope, the inclination angle is not more than 70° with respect to the envelope plane and decreases towards the bottom of the envelope so that the lowest lamella is inclined at an angle of not more than 25°, and the supporting construction shall be mounted to the building envelope so that an air cavity of at least 10 mm wide and not more than 100 mm is maintained between the envelope, mounted to it lamellae, and the plane of the building envelope.

Photoelectric window blinds, which consist of a plurality of elongated lamellas, which are arranged in parallel and connected between each other by at least two stripes, equipped with a drive for their assembling, disassembling and changing an inclination angle, on which solar panels are mounted, the panels being connected between each other and equipped with a means for transmission of an obtained electric energy to external networks or to a means for storage. According to the invention, each solar panel is formed by at least two sections of solar elements, which are arranged on a base made of an electrically insulating material and covered by a temperature and moisture stable layer, coupled to each other and by a means for electrical connection embedded therein, and it is configured to receive at least one additional section. An edge section of each solar panel is equipped with a means for transformation of an output power, the means being a DC/DC transformer or a Schotky diode embedded into the base made of the electrically insulating material from a side of the panel faced towards the lamella, and coupled to a shared bus that is connected to a DC-to-AC current transformer. Therewith, a cross-section profile of the lamellas has a C-shape with curved edges, which form guides for mounting the solar panels in a longitudinal direction, wherein a distance between edges of the sections of the solar elements of the solar panel and edges of the electrically insulating base equals to a width of the edges of the lamella guides.