ODP: 3rd Re: ODP: optical pots 2

[The Dark force of dance]

Y-ellow Y'all.

At 07:13 AM 05/18/99 -0700, David Halliday (Volt Computer) wrote:

>Only problem with using it as an indicator is that it consumes a huge amount
>of power ( by design ) and it's response time is very very slow.

>You want to test the battery under load anyway so this works out to be a
>very cheap and accurate solution.

Yes I looked at these when they first came out. I was told that the paint
is the same stuff they used on those "hypercolour" t-shirts. We once
postulated what it would cost to pain your car with that stuff. Just to
confuse the cops. "It's a red Nissan. No sorry it's blue now?"

I'm wondering. Assuming you could get the paint, could you not make a low
current version? Of course this would required that you design and
manufacture everything from scratch but you could possibly integrate it
into an overall panel design philosophy perhaps?

Something like a ni-chrome strip on a PCB which is the front panel. This
rests against a plastic front panel over lay which is printed with the
temperature-chromatic paint?

Where the ni-chrome wire heats up the front panel you'd get a display.
Actually it could be kinda cute. You could do all your dial markings that
way. So your front panel would change when you turned it on. Further, by
varying the current, you could change the colour of your dial markings to
suite your application.

Are we getting silly yet?

Be absolutely Icebox.

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