h a l f b a k e r y
Good ideas at the time.
add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
or get an account
This is my simplest idea, and if baked I'd love to see links.
Embed two LEDs in opposite directions in the same transparent epoxy, to make it act like a regular lightbulb where polarity does not matter. This could also make it a good low-voltage AC powered light. For novelty purposes, reversing
the polarity could cause the LED to glow in different colors.
(I ran into this problem when trying to teach a 3 year old about electricity...I want a light that just turns on without first having to teach about polarity)
Very common [csea, Dec 21 2010]
It's not a "baked" shout, but here is a proposed patent.
[Jinbish, Dec 21 2010]
||These are very common [link]. Many have 3 leads, but if you connect the outer ones together, you'll have back-to back red/green or other color LEDs. A suitable current-limiting resistor will still be needed in series.
||(When running such a device from 50-60Hz ac, the human visual system turns the alternating red and green to yellow. Borgs may have differing experience.)