[sdiy] LED backlit panels

[Theo]

Hi Kevin,
There is copper and aluminum foil with a etch resist photo layer on both
sides.
The stuff is used by model builders to make "fine" parts and in PCB making
for stencil masks for SMD.
You can you can use this stuff to create a mask to block light where it is
not wanted.
See http://www.conrad.de article number 529060-24 for the copper version.
About $8.50 for 8.4 x 5.7 inch.

Another option would be to silkprint the graphics with a opaque ink.

Hope this helps,
Theo


From: Kevin Peek <kpeek1 at prodigy.net>

> Well, I started trying to make a back-lit panel.
>
> I am using .25" Lucite and  T1 3/4  Super Bright Blue LEDs.
>
> I placed the LED's on the .25" edge of the panel.
> The LEDs just barely fit in the side of the glass.
>
> I am then placing a design on top.
> The design is printed on contact paper using a HP laser printer.
>
> The problem is that the toner is not dark enough to make the design
> parts appear black.
>
> Any ideas?
>
> Thanks.
>
> Kevin
>
>
>
>
>