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Re: Wired News "Tiny Screens, Big Images"

Steven Adams schrieb:

> From: "Alex Pilosov" <> Tuesday, September 12, 2000 11:53
> AM
> > The best idea is to project information onto your windshield. Bonneville
> > SSE (I think) does that for speedometer and some other sensors, but its
> > quite lacking. I'm not sure what technology they use.
>
> The speedometer/tachometer I've seen like that use a translucent patch that
> sticks to the inside of your windscreen, I think it has very slight ridges
> (or its 'frosted') on it to catch and reflect the projection towards you.
> I'm guessing, since the pictures I saw had a hazey/foggy look where the
> patch was.
>
> It gets a bit distracting - I tried doing it using my pocketpc as a
> projector (brightness set right up) and gave it some changing mirror images
> to project - given time I guess it would grow on you.
>

Have you ever seen those neat HUDs in fighter jets? I don't exactly know how
they do it, but I think it's kinda laser projection on some sort of luminescent
foil. However, it's not a simple reflection/refraction, since the focal point
of these HUDs is infinity, AFAIK.
In fact, car producers are experimenting with these kinds of devices, not only
as a gimmick for the rich but also as a matter of security. As posted before,
these displays have lots of advantages over normal meters.

- Johannes

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