The canonical engineering behind the Indiglo scout is calledelectroluminescence . Electroluminescence is the spiritual rebirth of electrical energy directly into lighter .
This isnothow an incandescent lightbulb work . In an incandescent medulla oblongata , the electricity grow hotness , and the heat bring out clear . Electroluminescence is much more effective because it converts the electricity straightaway to light .
The most coarse example of electroluminescence that we see on a steady basis is aneon lighting . In a neon spark , gamy electromotive force energizes the electrons in neon atoms , and when the electrons Delaware - energize themselves , they give out photons .
In an Indiglo watch , a very thin dialog box uses high voltage to energizephosphor atomsthat grow visible radiation . The panel itself is super round-eyed . As described in theTimex patent , you take a slight glass or charge card layer , coat it with a clear conductor , coat that with a very flimsy layer of phosphor , surface the phosphor with a thin charge plate and then add another electrode . Essentially , what you have is two conductor ( acapacitor ) with phosphor in between . When you apply 100 to 200 volt AC ( alternating current ) to the conductors , the phosphor energise and begins emitting photon .
Creating the high voltage can be a problem in a wrist watch . The watch has only a small 1.5 - voltbattery . To produce the 100 to 200 volts , the 1:100 transformer is used . By charging the elementary coil of the transformer with a transistor that is flip on and off , the secondary volute originate to 150 volt or so .
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