I gather most image sensors are more sensitive in the IR range.  The camera
manufacturers compensate with coatings or filters.  Sony once made a camera
with a rather poor coating (or was it a removable filter?).  The result was
that you could see a faint outline of the person (heat source) in their
clothing.

I believe the sophisticated thermal imaging stuff uses a scanning bolometer
and requires some pretty serious cooling.

Win Wiencke
Image Logic Corporation

----- Original Message -----
From: "Tal" <tal@ZAPTA.COM>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Monday, July 28, 2003 2:45 AM
Subject: Re: [OT]: Thermal Imaging Camera


> Is this one of the cameras where dressed people seem to be nude ?
>
> Sony used to sell one like that but I am not sure if they still do.
>
> Tal
>
> > -----Original Message-----
> > From: pic microcontroller discussion list
> > [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of David Huisman
> > Sent: Sunday, July 27, 2003 8:03 PM
> > To: PICLIST@MITVMA.MIT.EDU
> > Subject: [OT]: Thermal Imaging Camera
> >
> >
> > Anyone here had experience with the OPGAL thermal imaging products ?
> >
> > I am modifying the control circuit to be driven from a PIC
> > processor instead of via PC but having problems finding a
> > command to switch off the NUC (Re-Calibration function). I
> > don't want to use the mechanical shutter that came with the
> > camera but rather have the PIC issue the call command at
> > turn-on (which it does).
> >
> > Any help appreciated as the manufacture has not been
> > forthcoming with data.
> >
> > Kind Regards
> >
> > David Huisman
> >
> > --
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>

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