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Light guide LEDs using plastic light guides on a network switch The technology was rendered obsolete by the development of light-emitting diodes (LED) in the 1970s, though lightguide tubes are still used in electronics manufacturing, in situations where it is difficult to place an LED in the appropriate physical location on a display or bezel.
Light pipes are tubes or cylinders of solid material used to guide light a short distance. In electronics, plastic light pipes are used to guide light from LEDs on a circuit board to the user interface surface. In buildings, light pipes are used to transfer illumination from outside the building to where it is needed inside. [citation needed]
The 3M company developed a system based on optical lighting film [36] and developed the 3M light pipe, [37] which is a light guide designed to distribute light uniformly over its length, with a thin film incorporating microscopic prisms, [26] which has been marketed in connection with artificial light sources, e.g. sulfur lamps.
Puck lights are round or oval and are good for cabinet and display lighting. Puck lights can create scallops, spots, or pools of lighting instead of even illumination across the counter top. Linear lights can come as a light strip or as a linear fixture or light bar. Linear fixtures resemble small puck lights on one mounting strip.
Image credits: milwbrewsox #7. My wife and I have this ceiling fan/light in our bedroom in the house we moved into two years ago. It has a remote control for the fan and lights.
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A small metal, plastic or fiberglass junction box may form part of an electrical conduit or thermoplastic-sheathed cable (TPS) wiring system in a building. If designed for surface mounting, it is used mostly in ceilings, concrete or concealed behind an access panel—particularly in domestic or commercial buildings [2].
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