Re: TI-H: Re: LZ: Backlighting


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Re: TI-H: Re: LZ: Backlighting



Yes, but I tried that today and the LEDs don't fit!  You'd have to have
some transparent paper-thin illuminator to do the job!  Unless you've got
something like that, it seems unlikely that this idea will work!


"Honors Master PhD of Idea Engineering"
-= Zenon@bbs.nexes.com =-


----------
: From: ti-hardware@lists.ticalc.org
: To: Zenon
: Subject: Re: TI-H: Re: LZ: Backlighting
: Date: October 21, 1996 8:07 PM
: 
: 
: Jason C. Wenger wrote:
: > 
: >                            Postage paid by:
: >                                [Image]
: >                              Planet Direct
: > 
: >     ---------------------------------------------------------------
: > 
: > >Digi-Key sells a four chip LED from Cree. It has two blue chips, one
: > >red and one green. If you put the correct amount of current into the
: > >LED, it can create any color light, including white. They are rather
: > [SNIP]
: > 
: > No.  Remember the experiments in junior high science class when you use
a
: > prism to break up a white light into a spectrum?  This proves that
white
: > light is made up of all colors mixed together.  LEDs can only emit one
: > frequency at a time.
: > 
: True, what you are saying is absolutely correct HOWEVER, there ARE white
: LEDs (only developed within the last year I believe) and they are a
: combination of multiple LEDs.  I still think that Night Vision RED would
: be the best color for the light.


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