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OPTELEX - Optical and RF Engineering
00138 - Rome - Italy IT
Via Lorenzana, 15
Tel.: +393206269442
Fax: +391786089097
P.IVA (VAT): IT11248721000
R.E.A.: RM1291891
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OPTELEX Optical and RF Engineering
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Imagine a flash light which you might use to send a morse code signal. When operated manually this is sending data using the light signal, but because it is flashing off and on it cannot be considered to be a useful illumination source, so it is not really VLC by our definition. Now imagine that the flash light is switched on and off extremely quickly via a computer, then we cannot see the data and the flash light appears to emitting a constant light, so now we have illumination and communication and this does fits our definition of VLC: illuminations + communications.
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VLC - Visible Light Communications