FLIR T420-NIST User Manual page 110

27 – Glossary
Term or expression
transmission (or transmittance) factor
transparent isotherm
visual
100
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Explanation
Gases and materials can be more or less transparent. Transmis-
sion is the amount of IR radiation passing through them. A
number between 0 and 1.
An isotherm showing a linear spread of colors, instead of cover-
ing the highlighted parts of the image.
Refers to the video mode of a IR camera, as opposed to the
normal, thermographic mode. When a camera is in video mode
it captures ordinary video images, while thermographic images
are captured when the camera is in IR mode.
Publ. No. T559772 Rev. a593 – ENGLISH (EN) – March 16, 2012
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