Re: TI-H: Re: LZ: Backlighting
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Re: TI-H: Re: LZ: Backlighting
On Mon, 21 Oct 1996, Zenon Lynx wrote:
> : From: list-zshell@lists.ticalc.org
> : To: Zenon
> : Subject: Re: LZ: Backlighting
> : Date: October 20, 1996 5:23 PM
> :
> :
> : > ultrabright LEDs if you can find clear white ones (or even blue...?
> but
> : > not RED!!) then it would be good...LEDs take little power too.
> :
> : Tell me if you ever see a white LED. LED's are semiconductors that emit
> : almost monochromatic light. They would have to emit all frequencies of
> : visible light to make white light. So, for now at least, white LEDs do
> : not exist. Blue LEDs exist, but they are new and relatively expensive.
> :
> : Tobin Fricke
White "LED's" exist, but they're commonly referred to as "solid state
lamps" and i don't think they use LED technology (not sure).
They use them for mercury lamp replacement etc. Check a Digi-key catalog,
and you'll find them.
-gee (gmarsh@surf.seascape.com)
References: