Re: [ATM] Infrared Scope Design II

[Dominic-Luc Webb <dlwebb@canit.se>]

The trend has been to reduce IR sensitivity, but.....

No longer a problem! Our modern capitalism, commercialism
and high crime have joined forces with consumptionism and
crime prevention to give us high resolution IR security
cameras. Its the future, and its here NOW!

Fry's electronics in the USA has some quite good B&W IR
cameras, for example, but I should warn that I have read
many bad things about Fry's electronics as a business. The
cameras sold by Fry's seem to match their paranoid
presumptions that all employees and customers are thieves.
I note that they actually have some of these cameras
installed in their stores (one of my discoveries during my
recent visit to California). Not sure why since they search
everyone on their way out. The presence of those cameras
does lead me to believe they actually work.

Dominic


On Thu, 11 Oct 2007, hermit wrote:

> Jacob Lauser wrote:
> > Thanks for the input, guys.
> >
> > I did some sniffing around and found that most CCD chips do indeed
> > drop off above 700mm into the IR, so I was a bit diappointed,
>
> I don't know much about this personally, but my son has looked into it.
> Some, many, most? chips have a coating to reduce IR because the chips
> are actually sensitive to IR.  My Sony camcorder does IR.  There is an
> individual who actuall specializes in removing the IR coating/filter
> from ccd chips for those wishing to use the IR sensitivity.
>
> Ken Lowther
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> ATM mailing list http://www.atmlist.net/
>

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