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In addition, during a fire or a similar emergency situation in which it is necessary to escape, lockable windows, window shutters or grilles (especially fixed ones) may become dangerous obstacles, so it is necessary to ensure that the keys are as close to the windows as is practical or, if a window is an important emergency exit, that it can be ...
Other interior shutters use stationary louvers that do not rotate (fixed louvers); solid raised or flat panels; fabric inserts; or tinted glass. Shutters can be configured in a single tier unit that has one shutter top to bottom of a window opening as well as multiple tiers.
Joseph W. Walker of Malden, Massachusetts, applied for a US patent for a basic louvered window in 1900.He was issued patent no. 687705 on November 26, 1901. [5] A popular hand-cranked glass, aluminum and screen window combination was later designed by American engineer Van Ellis Huff and found widespread use in temperate climates before the advent of air conditioning. [6]
Shutter shades, also known as slatted shades, louvered shades, or Venetian blind shades are sunglasses that, instead of having darkened lenses, have horizontal slats similar to window shutters, which are an integral part of the frame.
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A central shutter is not a type of shutter as such, but describes the position of the shutter: it is typically a leaf shutter (or simple leaf shutter), and located within the lens assembly where a relatively small opening allows light to cover the entire image. Leaf shutters can also be located behind, but near, the lens, allowing lens ...
Ian is making a trek toward Florida. The state is in the cone of concern.
Focal-plane shutters may also produce image distortion of very fast-moving objects or when panned rapidly, as described in the Rolling shutter article. A large relative difference between a slow wipe speed and a narrow curtain slit results in distortion because one side of the frame is exposed at a noticeably later instant than the other and the object's interim movement is imaged.