| From: | Marc Renouf <renouf@********.COM> |
|---|---|
| Subject: | Re: thermographic vision-question |
| Date: | Tue, 2 Feb 1999 20:04:00 -0500 |
> Thermographic vision, as described in SR, exists in the far-infrared spectrum
> between 14 and 30 micrometers. It's at these wavelengths that the blackbody
> radiation at low temperature ranges (0-100 C or thereabouts) are the greatest.
> At shorter IR wavelengths (less than 14 micrometers) the amplitude for this
> temperature range is too small to be detected.
Thanks for the Field Manual cite, Jon. The only thing I would add
is that the shorter wavelengths have their uses (mainly for atmospheric
correction of satellite-collected infra-red data). By looking at
atmospheric absorption across a couple of the shorter IR wavelengths, you
can figure out what attenuating effect the atmosphere in having and then
take it out. While this isn't appropriate for cybereyes, but might be
handy to keep in mind for vehicular sensors (especially for aircraft).
Marc
