DIY optical fiber night light
Make a cool DIY night light
Warning! Only under adult supervision.
- empty chip container;
- optical-fiber cable;
- battery pack;
- wire connector;
Carefully remove the insulation from an optical fiber and cut the fiber into small pieces (~ 10 cm / 4 inches). Use a pushpin to poke some holes in the lid of a chip container and insert a piece of the fiber into each hole. Connect a battery pack to an LED and place them in the container under the lid. Your night light is ready!
Unlike conventional cables, which employ electrical impulses, optical cables use light to transmit signals. Since light does not react to external electromagnetic fields, the signal is not distorted and data transmission is virtually uncompromised. In addition, optical fibers allow us to direct light along a convenient route. They operate based on the phenomenon of total internal reflection – when light moves from an optically denser medium to a less dense one, at more than a certain angle, it reflects entirely off their border. Total internal reflection minimizes losses as the signal is passed along.
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