From: | Mark Ellis <oronis@*********.CO.UK> |
---|---|
Subject: | Re: Threat warning systems [was re: Sniping in SR] |
Date: | Sun, 7 Jun 1998 12:48:58 +0100 |
> > Can do actually. RP is a variation on the stuff used in optical chips
>
> Where did you get that? It doesn't say so in the description of the
> stuff in Shadowtech, matter of fact it says that RP change color
> through voltage changes, while optical chips are basically
> red/green transistors whose state is changed by applying light.
> Not quite the same, if you ask me.
>
Well yeah, it's not quite the same thing (actually went across the room to
the bookshelf this time :) ), but the principles similar.
> > so in
> > a 'laser detection suit' the computer would constantly 'read'
> the state of
> > the RP using a light frequency that didn't change its state ie.colour.
>
> Two things I'm wondering about: 1) why would light change the
> voltage of the RP (unless it's a photoelectric compound perhaps,
> but that makes little sense to me); and 2) why does the
> computer need to read the screen? All it needs to do is _output_
> to it.
>
This is where I confused myself. If you are using photovoltaics, yes you
could just pick up the generated voltage. Using optics would require a
constant signal that reads the suit. I would tend to think that the optical
version would be more reliable, but yes you're right, its not actually based
on 'normal' RP.
Another tangent, could you actually expand the use of this to a 360 degree
cybered viewing system ? Would be a nightmare to understand the input, but
no one would ever stab you in the back again.
Mark
'Who is the more foolish, the fool, or the fool who follows him ?'