Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
Thunk.

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.

user:
pass:
register,


       

Rectifier LED

 Two LEDs in one casing
 
(0) 		  [vote for,
against]

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)

—cowtamer, Dec 21 2010

Bicolor LEDs http://www.google.c...AU&biw=1003&bih=586
Very common [csea, Dec 21 2010]

It's not a "baked" shout, but here is a proposed patent. http://www.freepate...ne.com/7053560.html
[Jinbish, Dec 21 2010]

Please log in.
If you're not logged in, you can see what this page looks like, but you will not be able to add anything.
Short name, e.g., Bob's Coffee
Destination URL. E.g., https://www.coffee.com/
Description (displayed with the short name and URL.)






       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.)
—csea, Dec 21 2010
   


 

back: main index
business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle