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P3D white LEDs


  • From: Tom Deering <tmd@xxxxxxxxxxx>
  • Subject: P3D white LEDs
  • Date: Sun, 21 Nov 1999 19:14:58 -0700


>Prices I've seen run from $2 - $8 per each LED - and considering
>they last 110,000 hours of continuous use, they don't seem expensive
>to me.
>
>There are other factors to consider.  Price doesn't seem to be one.

This sounds like conjecture.  My comments are based on experience.

You are going to need a bank of white LEDs, not just one. Depending 
on how bright you want your image, you'll need a handful.  This adds 
up to real money fast.

The cost of the array of white LEDs, the color balancing LEDs, and 
the rest of the regulating circuitry needed to run them is *many* 
MANY times more complex and expensive than the simple bulb in a 
regular viewer.

This isn't theory.  I have easily spent 100 hours on this, and as 
many dollars. There is much more to it than meets the eye, NPI.

Tom Deering
--
Y2K warning:  The Y2K "bug" has been a hoax from the start, but the 
only people who can expose the lie are the programmers who stand to 
profit from it.

Ignore the hype.  Don't hoard food, leave your money in the bank, and 
put the gun back in the attic. The big story on January 1 will be 
that nothing happened.