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  2. Sliding glass door - Wikipedia

    en.wikipedia.org/wiki/Sliding_glass_door

    Another sliding doors design, glass pocket doors has all the glass panels sliding completely into open-wall pockets, totally disappearing for a wall-less 'wide open' indoor-outdoor room experience. This can include corner window walls, for even more blurring of the inside-outside open space distinction.

  3. Optical turnstile - Wikipedia

    en.wikipedia.org/wiki/Optical_turnstile

    Drop Arm style optical turnstiles. An optical turnstile is a physical security device designed to restrict or control access to a building or secure area. Optical turnstiles are usually a part of an access control system, which also consists of software, card readers, and controllers.

  4. Stage lighting accessories - Wikipedia

    en.wikipedia.org/wiki/Stage_lighting_accessories

    A top hat (left) and barn doors (right) used in theatrical lighting. Barn doors are generally not used with "profile" or "ellipsoidal reflector" spotlights because they have internal shutters which work more effectively. Barn doors are not effective at shaping the light of a PAR lights and a narrower lens would be a better way to do this.

  5. Storm door - Wikipedia

    en.wikipedia.org/wiki/Storm_door

    Storm door, Japan. A storm door is a type of door that is installed in front of an exterior access door to protect it from bad weather and allow ventilation.Storm doors generally have interchangeable glass panels and window screen panels to provide visibility and prevent flying insects from entering the home.

  6. Awning - Wikipedia

    en.wikipedia.org/wiki/Awning

    Lab test measurements show that it can be as much as 10 °C (20 °F) cooler under an awning's canopy. Because awnings prevent the sun from shining through windows and sliding glass doors, they can keep temperatures inside cooler as well, which saves on air-conditioning costs. They can help prevent carpets and furniture from fading in sunlight.

  7. Sidelight - Wikipedia

    en.wikipedia.org/wiki/Sidelight

    For instance, for proper security a sidelight should only be installed on the side of the door without the door knob or handle. [7] Sidelights provide people on a building's interior with a narrow view of the outdoors and as such doors without sidelights, especially in apartment buildings , should be equipped with a peephole .

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