Re: CCD

Hi Ian

Yes I to remember something along tose lines, But the speed was pretty poor.
I think I have a copy of the artical filed away somewhere.
The CCD I refered to costs about �7.00 in one off quanities - I only mentioned
it because Texas Instruments gave me a couple of samples to play with F.O.C.

Regards, Paul.

On Mon, 20 Sep 1999, you wrote:
> From: "Ian Wright" <Ian@...>
>
> Hi,
>
> CCD devices sound expensive - I saw an article a while ago (can't remember
> where though) in which someone was using ordinary EPROMs as CCD devices.
> Apparently they work well enough to be able to get a recognizable black and
> white picture from although, of course, it is grainy due to the limitation
> on pixel numbers. Still, it might be good enough for this purpose and EPROMs
> are so easily available in scrapped equipment that it may be worth while
> looking at them as a source of sensors. From what I remember, you read them
> continually and the cells on which light has fallen report a lower value
> proportional to the light's intensity (grey scale value) or something.
>
> Ian
> --
> Ian W. Wright
> Sheffield UK
>