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Window blind

Window blind

Overview
For other uses see Blinds (disambiguation)
Blinds (disambiguation)
Blinds may refer to:* Window blind, a window covering composed of long strips of fabric or rigid material.* Blinds , forced bets posted by players in poker....

For the desktop theming software, see WindowBlinds
WindowBlinds
WindowBlinds is a computer program that allows users to skin the Windows graphical user interface. It has been developed by Stardock since 1998, and is the most popular component of their flagship software suite, Object Desktop. It is also available separately, and as an ActiveX/COM component...

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A window blind is a specific type of window covering which is made with slats of fabric, wood, plastic or metal that adjust by rotating from an open position to a closed position by allowing slats to overlap. Metal window blinds are often used outside of the house or business to protect against theft, temperature, vision, bad weather and fire (in fire-prone areas).
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Encyclopedia
For other uses see Blinds (disambiguation)
Blinds (disambiguation)
Blinds may refer to:* Window blind, a window covering composed of long strips of fabric or rigid material.* Blinds , forced bets posted by players in poker....

For the desktop theming software, see WindowBlinds
WindowBlinds
WindowBlinds is a computer program that allows users to skin the Windows graphical user interface. It has been developed by Stardock since 1998, and is the most popular component of their flagship software suite, Object Desktop. It is also available separately, and as an ActiveX/COM component...

.


A window blind is a specific type of window covering which is made with slats of fabric, wood, plastic or metal that adjust by rotating from an open position to a closed position by allowing slats to overlap. Metal window blinds are often used outside of the house or business to protect against theft, temperature, vision, bad weather and fire (in fire-prone areas). Often these blinds are machine-operated, rather than hand operated.

The horizontal version uses a thin woven "ladder" system to suspend the slats and enable slats to be closed via a rotating drum to which each upper end of the woven ladder is wrapped and attached. A lift cord allows blind to be pulled up and stack tightly to top of window when desired.

The vertical version uses a generally wider slat and has the added feature of being able to pull a cord to stack the slats together either to one side or to separate in the center and stack on each end. This vertical blind allows rotation of slats by a rotating shaft in the upper head rail housing which runs throgh independent geared carriers that will convert twisting of tilt rail to a rotation of each individual slat in sync. The original vertical blinds were invented in Kansas City, Mo by Edward Bopp and Fredrick Bopp who held the original patent. The company name at the time was Sun Vertical. In the 1960's the patent and company was sold.

The term Window blinds is also sometimes used, somewhat inaccurately, to describe window coverings generically - in this context window blinds include most every type of window covering ie. shutters, roller shades, roman shades and of course, vertical and horizontal blinds.

In Britain awnings are also considered blinds. A blind limits observation and thus “blinds” the observer to the view. The main types are slat blinds which can be opened in two ways and solid blinds.

Solid blinds can only be raised or lowered and are often called shades. There are types of blinds, such as Holland blinds and woven-wood blinds, where there are small spaces between the slats. In others such as pleated shades there are no spaces because the slats are sewn inside fabric.

Window blinds reduce the heat from sunlight. Ancient Egyptian pharaohs had blinds made of reeds. The most inexpensive blinds in the 1800’s were home-made roller shades, made of cloth.

Window blinds can be manually drawn using a cord, or automated through motorization. Controls for motorized blinds can be from a wall switch or keypad, remote control, or a personal computer, eliminating the need for cords and allowing control of otherwise inaccessible windows.

Persian, or Slat



The most common window blinds are slat blinds, which consist of many horizontal slats, usually of metal
Metal
A metal is a chemical element that is a good conductor of both electricity and heat, forms cations and ionic bonds with non-metals. In chemistry, a metal is an element, compound, or alloy characterized by high electrical conductivity. In a metal, atoms readily lose electrons to form positive ions...

 or vinyl
Vinyl
A vinyl compound is any organic compound that contains a vinyl group , −CH=CH2. These are derivatives of ethene, CH2=CH2, with one hydrogen atom replaced with some other group...

, connected with string in a way that they can be rotated to allow light to pass between the slats, rotated up to about 170 degrees to hide the light, or pulled up so that the entire window is clear. Vertical blinds consist of slats of stiffened fabric, plastic, or metal hanging by one end from a track; like the horizontal versions, the slats can be rotated 90 degrees to allow light to pass through or to fold up on one side of a door or window. Vertical blinds are very good at controlling how much natural or exterior light comes into a room, due to the ability of the slats to close tightly.

Venetian


A Venetian blind has horizontal slats, one above another. They are suspended by strips of cloth called tapes, or by cords, by which all slats in unison can be rotated through nearly 180 degrees. The slats can be rotated such that they overlap with one side facing inward and then in the opposite direction such that they overlap with the other side facing inward. Between those extremes, various degrees of separation may be effected between the slats by varying the rotation. There are also lift cords passing through slots in each slat. When these cords are pulled, the bottom of the blind moves upward causing the lowest slats to press the underside of the next highest slat as the blind is raised. A modern variation of the lift cords combines them with the rotational cords in slots on the two edges of each slat. This avoids the slots otherwise required to allow a slat to rotate despite a lift cord passing through it, thus decreasing the amount of light passing through a closed blind. Slat width can be between 16-120 mm, with 50 mm being a common width.

Venetian blinds are basic slatted blinds made of metal or plastic; wooden slats are sometimes used but these are usually referred to as wood blinds or bamboo blinds. Venetian blinds were patented by Edward Beran in London on 11 December 1769, but in reality Venetian blinds were invented by the Japanese long before then. The early history of the Venetian blind is conjectural. The early Venetians, who were great traders, are thought to have brought the idea of the blind from Persia to Venice. The Venetian slaves, once freed, are then thought to have brought the blind to France for personal comfort and as a means of livelihood. The French name for Venetian blinds is "Les Persienes." In 1761 St. Peter’s Church in Philadelphia was fitted with Venetian blinds. The first pioneer of the Venetian blind in the future US was John Webster of London who advertised his wares in 1767. Venetian blinds then appeared in the 1787 painting by J. L. Gerome Ferris, entitled "The Visit of Paul Jones to the Constitutional Convention." Other illustrations show Venetian blinds at Independence Hall in Philadelphia at the time of the signing of the Declaration of Independence. In the late 19th and early 20th centuries, Venetian blinds were widely adopted in office buildings to regulate light and air. One large modern complex in the US that adopted Venetian blinds was Rockefeller Center’s RCA Building (better known as the Radio City building) in New York City, completed in the 1930s. One of the largest orders for Venetian blinds ever placed was to the Burlington Venetian Blind Co., of Burlington, Vt. for the windows of the Empire State Building in New York City.


Vertical


Unlike horizontal blinds, vertical blinds are less likely to be damaged in strong winds and to hold dirt, but are more likely to break down. Generally they require less muscle strength, and are faster to operate.

Stationary vertical blinds are hung in the doorways of some homes and businesses which generally leave the door open. Movement of the blind may signal a change in air flow, or someone entering the doorway. More commonly however, these vertical blinds are made of thick plastic. In the cold rooms of food businesses, this slows the leak leakage into the cold room. In warmer climates, vertical blinds discourage flies and some other insects from entering the building.

Cellular Shades


Cellular Shades also know as Honeycomb Blinds get their name from their shape which are made individual cells glued together. From the side, it has the look of a honeycomb. Cellular shades are very energy efficient shades. They get their energy efficiency from the pockets of air that the cells create. Cellular shades come in light filtering fabrics as well as room darkening fabrics. There are several configurations these shades come in: standard corded, continuous cord loop, top down/bottom up, and top down only. Cellular shades are know as a softer alternative to Wood blinds (Venetian blinds).

Others


Other variety of window blinds include mini blind
Mini blind
A mini blind is a type of non-vertical window blind made of long, narrow slats held together by string and located inside the window. Its slats are not as wide as venetian blind slats. A mini blind has more slats than a regular Venetian blind because its slats are narrow...

s (Venetian blinds with very narrow slats 1"(usually 25 mm wide), micro blinds 1/2"(usually 12 mm wide), louver
Louver
A louver or louvre , from the French l'ouvert; "the open one") is a window, blind or shutter with horizontal or, less often, vertical slats, that are angled to admit light and air, but to keep out rain, direct sunshine, and noise...

s, jalousie
Jalousie
A jalousie window is a window which consists of parallel glass, acrylic, or wooden louvers set in a frame. The louvers are locked together onto a track, so that they may be tilted open and shut in unison, to control airflow through the window. They are usually controlled by a crank mechanism.A...

s, brise soleil
Brise soleil
Brise soleil, sometimes brise-soleil , in architecture refers to a variety of permanent sun-shading techniques, ranging from the simple patterned concrete walls popularized by Le Corbusier to the elaborate wing-like mechanism devised by Santiago Calatrava for the Milwaukee Art Museum or the...

, Holland blinds, pleated blinds, honeycomb blinds (similar to pleated shades except that there are two or more layers joined at the pleats to form compartments that trap air, providing insulation), Roman shades, and roller shades.

Materials


A window blind is a means of screening a window, achieving similar results to those obtained by fitting curtains. Blinds are typically the same width and height as the window itself or slightly wider and taller - depending on whether they are fixed inside or outside the window's reveal (i.e. the wall recess within which the window itself is fixed).

Window blinds have varying thermal effects: they can block unwanted heat of the summer sun and they can keep in heat in cold weather. But in both of these applications, they also reduce light to varying degrees, depending on the design. Many kinds of blinds attempt varying balances of privacy and shade. Blinds can be made of a number of different materials and manufactured in a number of different ways. This usually determines the name by which the blind is commonly known.

Fabric


Blinds made of fabric can either roll up around a metal batten (roller blinds), fold up thanks to a thin cord and small horizontal slats (Roman blind), folding blinds with no horizontal slats create a less structured look (Austrian blinds).

Wood



Wooden blinds are generally known as Venetian blinds. A number of horizontal wooden slats are joined together by corded pulleys which can either gather all the slats at the top of the window to reveal the view or simply angle the slats while allowing some light to travel through the blind yet retaining some level of privacy. Wooden blinds come in a number of finishes (determined by the type of wood used, which ranges from painted to most types of solid oak varieties) and sizes (determined by the width of each slat which is usually available in one of three widths - 25 mm, 35 mm or 50 mm). Wooden Venetian blinds are also available as vertical blinds. These are usually made up of wider slats and operate in virtually the same way as their horizontal counterparts (i.e. instead of being drawn upwards to reveal the window, the draw to one side gathering in a vertical bunch).

Pinoleum blinds are made up of small wooden twigs laid horizontally which are joined together by vertical threading. The resulting weave is, as a result, only flexible vertically and can be drawn upwards once manufactured as a roller blind or in a similar fashion to a Venetian blind. Conservatory blinds are often made with Pinoleum. Drawings in ancient Egyptian tombs of reed blinds have been reported and a common window blind during the 1800’s is said to have been the home-made roller shade.

Faux Wood


Faux wood blinds are an alternative to real wood blinds. Made of a composite of man-made materials and natural wood particles faux wood is also a less expensive choice then natural wood. These blinds have become more popular as the products have matured, becoming cheaper and more versatile at the same time offering more of a natural wood look. Current faux wood blinds are more warp resistant than ever before, have UV ratings as high as 500 and come in many colors that would be hard to find in natural wood blinds.
Because of their resistance to warping, faux wood window blinds are a great choice for areas of extreme temperature swings. They are also the ideal choice for places with high moisture such as bathrooms or kitchens, since they do not warp as easy as natural wood.

Other materials


Venetian blinds, both horizontal and vertical, are available in a number of man-made materials (either resembling wood or metal or simply plastic). These are better suited to areas where moisture or direct contact with water is likely to cause a problem, such as bathrooms and kitchens. These blinds are often available with micro slats (as small as 16 mm or less). The result of smaller slats is that more have to be used to obscure the window completely. Conservatory blinds (i.e. ceiling fixed via a number of horizontal pulleys) are often made of man-made materials.

Automobile blinds



Some vehicles include or are retrofit
Retrofit
Retrofitting refers to the addition of new technology or features to older systems. An example of this is car customizing, where older vehicles are fitted with new technologies: power windows, cruise control, remote keyless systems, electric fuel pumps, etc....

ted with sun blinds for rear and rear side windows. See also car glass
Car glass
Car glass includes windscreens, side and rear windows and glass panel roofs.Side windows can be either fixed or be raised and lowered by depressing a button or switch or using a hand-turned crank handle....

. These blinds are used to protect the vehicle and the passengers from direct sunlight. The rays of the sun can damage the interior of most vehicles over time. Blinds on the side windows can be important for protecting adults and especially infants. Car window blinds are usually mounted with brackets and are easy to install or remove.

Car shades are another common way to protect the vehicle. The shades for the rear and front windows are designed to be unfolded and sit against the window. They can be made of plastic or cardboard. The shades that go on the side windows of a vehicle are usually attached using suction cups or using static cling.

Solid fabric and slat car blinds have given way to cheaper and more flexible, folding wire-framed "dark-stocking" synthetic blinds. These are used where the car owner has not dark-tinted the glass of the car windows enough. or during the day, wishing to have more privacy.

See also


  • Window shutter
    Window shutter
    A window shutter is a solid and stable window covering usually consisting of a frame of vertical stiles and horizontal rails...

  • Curtain
    Curtain
    A curtain is a piece of cloth intended to block or obscure light, or drafts, or water in the case of a shower curtain. Curtains hung over a doorway are known as portières...

  • Domotics
  • Mini blind
    Mini blind
    A mini blind is a type of non-vertical window blind made of long, narrow slats held together by string and located inside the window. Its slats are not as wide as venetian blind slats. A mini blind has more slats than a regular Venetian blind because its slats are narrow...

  • Sudare
    Sudare
    Sudare are screens or blinds. They are sometimes called misu as well. Sudare were made of slats of decorative wood, bamboo, or other natural material woven together with simple string, coloured yarn, or other decorative material to make nearly solid blinds...