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Roll shutters on windows. Security roller shutters in a dead mall. A roller shutter, security shutter, coiling door, roller door or sectional overhead door is a specialized type of door or window shutter consisting of multiple horizontal slats, bars, or web systems interconnected through hinges. The mechanism involves lifting the door to open ...
Exterior shutters were originally constructed for light control, privacy, security and protection from the elements. Many areas of tropical Australia, the Mediterranean, Africa, and the American South, feature exterior shutters that block the strong sun from windows. Functional shutters hinge on each side of a window or at the top and swing ...
Type of louver in concept Louver used in a Stevenson screen Louver shutters in Italy Louvered cupola bell house. A louver (American English) or louvre (Commonwealth English; see spelling differences) is a window blind or shutter with horizontal slats that are angled to admit light and air, but to keep out rain and direct sunshine. The angle of ...
The latches secure the shutter in the closed (over the window) position. Tie-back hardware can be used to hold the shutter in the open position. Exterior shutters were vital elements of homes in the colonies. Raised panel shutters provided security against access from ground level. Exterior shutters also proved a first barrier against the elements.
Shutter (photography), a photographic device that administers the exposure by limiting the time over which light is admitted; Shutter, a device used to manipulate pulses of light in a signal lamp; Movie projector shutter, used to interrupt the emitted light during the time the film is advanced to the next frame; Remote shutter, in a selfie stick
The automatic door used a mat actuator. In 1960, they co-founded Horton Automatics Inc and placed the first commercial automatic sliding door on the market. [5] With the invention of the Gunn diode, microwave motion detectors became common in automatic doors in the 1970s. [6] [7] In 1980, the first automatic door using an infrared sensor was ...