Monday, 15 April 2013

USB illuminator

USB Illuminator

by Vinothini

Hi friends here is an somewhat innovative idea as well as simple way to make our known knowledge useful.

We need just 3V LED, a resistor in order to provide steady current, 3 CD’s, refractive lens, an USB wire, bottle (water bottle like)



Make a 3 CD as cone shaped by joining them, place the lens in the arrangements now solder the led(anode which is longer lead) with resistor, now take the USB wire  connect them with two end of LED(+ve,-ve correctly), now place cone shaped CD in the mouth of the bottle then put the led connection inside it through the hole in CD no connect the USB with your lap or any USB port.. enjoy the illumination.


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