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Barn doors, or occasionally a set of barn doors, are an attachment fitted to the front of a Fresnel lantern, a type of lantern used in films, television, and theatres. [1] The attachment has the appearance of a large set of barn doors, but in fact there are four leaves, two larger and widening on the outside, two smaller and getting narrower ...
Other common accessories include gobo holders or rotators, iris holders, donuts, barn doors and color scrollers. Gobos are templates made from a thin piece of metal that have designs to project patterns. An Iris is an accessory which can alter the size of the projected beam of light.
The rollers also have safety locks that prevent the doors from jumping off the tracks. Additional devices include soft-closers and dampeners, which make it easier to close the door gently. A popular top-hung sliding door type is the barn door, inspired from countryside barns, in modern homes of Scandinavian styles.
Numerous devices exist to serve specific purposes related to how a door should (or should not) be used. See: Door chain - A device to secure door opening; Door closer – Mechanical or electromagnetic device to close an open door (in the event of a fire) [3] Door opener - Automatic door opening device activated by motion sensors or pressure pads
A barn door tracker, also known as a Haig or Scotch mount, is a device used to cancel out the diurnal motion of the Earth for the observation or photography of astronomical objects. It is a simple alternative to attaching a camera to a motorized equatorial mount .
Dick Van Dyke still makes time for leg day. The actor celebrated his 99th birthday on Dec. 13, then appears to have hit the gym a few days later, according to a video shared on his Instagram page ...
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