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A typical window insulation film kit, consisting of plastic shrink film (folded-up) and a roll of double-sided tape. One commonly used film is a heat-shrink plastic which is attached to the window frame using double-sided pressure-sensitive tape. A hair dryer is used to remove creases and improve optical clarity.
The thicker window films known as safety and security window film are designed to perform under extreme conditions, and as such there are specific standard criteria these films should meet, such as American standards ANSI Z.97, CPSC 16 CFR 1201, Cat II (400 ft-lb), and the British Standards BS 6206 (Class A, B, C).
Some smart windows can self-adapt to heat or cool for energy conservation in buildings. [5] [6] [7] Smart windows can eliminate the need for blinds, shades or window treatments. [8] Some effects can be obtained by laminating smart film or switchable film onto flat surfaces using glass, acrylic or polycarbonate laminates. [9]
The reflection-based daylight redirecting film, stuck to the inside of top part of the windows, is reflecting light sharply up onto the ceiling. This is a suboptimal use of prism lighting. While the ceiling does diffuse the reflected light, it still mostly lights the area nearest the window, where it is superfluous.
Many thin films offer high solar reflectance and heat emittance. However, films with precise patterns or structures are not scalable "due to the cost and technical difficulties inherent in large-scale precise lithography" (2022), [9] or "due to complex nanoscale lithography/synthesis and rigidity" (2021). [69]
In passive solar building design, windows, walls, and floors are made to collect, store, reflect, and distribute solar energy, in the form of heat in the winter and reject solar heat in the summer. This is called passive solar design because, unlike active solar heating systems, it does not involve the use of mechanical and electrical devices.
The pipe is coated with a 99.3% specular reflective film and the distribution element at the end of the light pipe consists of a 4.6 m long diffusing radial film with an 87% visible transmittance. The light pipe introduces consistently illuminance levels ranging between 300 and 2,500 lux throughout the year at distances between 7.6 m to 10 m. [12]
See-through graphics can be added to glass or other transparent panels to provide advertising, branding, architectural expression, one-way privacy and solar control. See-through graphics on the outside of a window See-through graphics: the view outside is unobstructed. Perforated self-adhesive window films are often used to create see-through ...
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