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'Tri-color (RGB) LED?'
1998\07\22@184241 by Jon Bertrand

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I seem to recall a thread here about white LEDs.  Are there RGB LEDs with the
red, green, and blue seperately controllable?  Who makes them?

Thanks,

Jon Bertrand
spam_OUTjonbTakeThisOuTspamcirris.com

1998\07\22@190744 by Eric Fixler

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Sharp makes a surface mount tricolor LED that I've used in a project.

I don't know the part number offhand, and I don't think there is a
through-hole equivalent.

eric



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1998\07\22@191834 by Sean Breheny

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I have used thru-hole tri-color LEDs. They consisted of one red LED, one
green LED, and two blue LEDs, all in one normal LED package with six (if
I remember correctly) leads (the two blue leds act like one).

I don't remember the manufacturer (but it might be CREE). I think that I
got mine from Mouser electronics or Digikey about 2 years ago.

The only problem with this LED combo is that the MAX brightness of the
three colors is not the same and they are not arranged to throw all the
light from each PN junction on the same spot. Consequently, the white
sopt produced when all colors are on is very small, and is surrounded by
various combinations of color.

Good Luck,

Sean


On Wed, 22 Jul 1998, Eric Fixler wrote:

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1998\07\22@194954 by David Reinagel

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Jon,
       There are a lot of companies making these now.  Look at the back
of a DigiKey catolog (or http://www.digikey.com) and see their offerings.

Dave Reinagel

> From jonbspamspam_OUTCIRRIS.COM Wed Jul 22 15:46:12 1998
> X-SMAP-Received-From: outside
> X-Warning: mitvma.mit.edu: Host cirris.cirris.com claimed to be hipot.cirris.c
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1998\07\23@044247 by Mark Willis

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Siemens makes a new part number:  ZHBT-670.  Fairly interesting, used
as a demo at the Microchip Seminar I went to <G>

 http://www.siemens.de/semiconductor/products/35/354.htm has (I think)
.pdf files that're applicable, sorry if that's a bad link (NetScape on
this machine is out of resources, I need to reboot soonly.)

 Mark, spamBeGonemwillisspamBeGonespamnwlink.com

Jon Bertrand wrote:
>
> I seem to recall a thread here about white LEDs.  Are there RGB LEDs with the
> red, green, and blue seperately controllable?  Who makes them?
>
> Thanks,
>
> Jon Bertrand
> TakeThisOuTjonbEraseMEspamspam_OUTcirris.com

1998\07\23@113415 by KURT KUHLMANN

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    no they are not.  Nichia is the only one who makes them.  In San Jose:
    408-573-0933


______________________________ Reply Separator _________________________________
Subject: Tri-color (RGB)  LED?
Author:  RemoveMEPICLISTspamTakeThisOuTMITVMA.MIT.EDU (Jon Bertrand) at INET
Date:    7/22/98 4:43 PM


I seem to recall a thread here about white LEDs.  Are there RGB LEDs with the
red, green, and blue seperately controllable?  Who makes them?

Thanks,

Jon Bertrand
jonbEraseMEspam.....cirris.com

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