implanted LEDs
has anyone experimented with implanting leds or any other small, novel electronic devices?
i have been considering making a small silicone implant, with something like one of these inside http://mindtomachine.blogspot.com/2009/05/wireless-led-throwies.html
the biggest issues i can see are the size.. but i have many friends with quite large silicone implants in their hands / forearms.
any thoughts?
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Like this thingy:
https://www.sandsprecision.com/index.php?option=com_virtuemart&Itemid=70
the size is just a matter of the parts you want to use. the smaller, the less powerfull the led. you can build a led throwie with SMD parts the size of about 3x3x15mm. it would be pretty dimm tho.
as @mkabala already pointed out. red is the only color that works. the skin's absorbtion of yellow or even green is about 100times higher than red.
@zombiegristle where's the fun of building it :D? it's a good source of inspiration tho. a small binary counter could easily be added to the throwie circuit making it blink at high frequency. a good way to simulate an optical communication interface. at least enough simulation to see if that signal can be picked up by a receiver outside the body.
@athlon caps could be added, but they tend to be rather big and don't store a lot of energy. even a goldcap of 10mm diameter and 5mm thickness only holds about 1.25J making a standard red LED with 20mA light up for around 20 to 40 seconds.