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'EL Backlighting revisited'
1999\06\04@144042 by Eric Oliver

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Hey,

Last week I posted a question regarding EL backlighting.  I just got a
phone call from a company called AuroraLites.  He already has the artwork
for a 4 1/2 x 4 1/2 panel and he will sell panels for roughly $10 each.  If
anyone is interested I'll post the website and phone number ( it's at home
right now ).

I had backed off the idea of using EL backlighting because of the expense
of having panels made. But at that price, I think I'll reconsider.


Eric

1999\06\04@145504 by David Knaack

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From: Eric Oliver <spam_OUTericTakeThisOuTspamKEDCOENT.COM>

>Last week I posted a question regarding EL backlighting.  I just got a
>phone call from a company called AuroraLites.  He already has the artwork
>for a 4 1/2 x 4 1/2 panel and he will sell panels for roughly $10 each.  If
>anyone is interested I'll post the website and phone number ( it's at home
>right now ).


Please do :)

>I had backed off the idea of using EL backlighting because of the expense
>of having panels made. But at that price, I think I'll reconsider.


I've been working with prototype EL panels for about a year now, what
are your requirements?  I cut and install the panels in TI graphing
calculators,
the lamps I get come in 2x3, 3x5 and 6x10 sizes, at 5, 10 and 50 dollars
each.

DK

1999\06\04@172408 by Eric Oliver

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Ok,

Here's the link http://www.auroralites.com

Auroralites
Turtle Creek PO# 52628
1801 Lakeshore Rd. W.
Mississauga, Ont.
Canada L5J 4S6

416 230-2396
.....sales-marketingKILLspamspam@spam@auroralites.com



> I've been working with prototype EL panels for about a year now, what
> are your requirements?  I cut and install the panels in TI graphing
> calculators,
> the lamps I get come in 2x3, 3x5 and 6x10 sizes, at 5, 10 and 50 dollars
> each.
>
> DK

I've been told that cutting the panels will cause them to oxidize and
drastically shorten the life of the panel.  How do you cut them ?  Or more
specifically, how do you seal them after you cut them ?

Eric

1999\06\04@180638 by David Knaack

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From: Eric Oliver <ericspamKILLspamKEDCOENT.COM>
>Here's the link http://www.auroralites.com

Thanks :)

{Quote hidden}

The panels I use have microencapsulated phosphors, so they do not
suffer from oxidation or moisture damage when cut (so says my
supplier).  I haven't noticed any dimming on the panel I have had
running in my calculator for the past year or so.

I generally cut them with sharp scissors :)

Due to the manufacturing technique, the only sealing required is
for electrical insulation, as the cut edges are live, at 80vac with
the inverter I'm using.  I just use some 1 mil clear poly tape I found
at wal-mart around the edges, have never had a problem with it
shorting.  I haven't tested the tape's insulating properties to see
where it breaks down, but it is over 80v.

Of about 30 or so panels that I've made only one has ever failed
(to my knowledge), and I believe that was either a manufacturing
defect or an incorrect installation (not performed by me mind you :).
I had the panel sent back to me for examination and found a 1mm
diameter area that appeared to have shorted internally, causing
the lamp power contacts to melt through the lamp and insulation
and come into contact with the calculator LCD display board.
The 80v power then pretty much destroyed the calculator.

The lesson learned was to insulate with non-melting materials
and incorporate fuses in the inverter supply (which was wired
directly to the battery via a switch).

DK

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