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Optical Charts
thermoIMAGER TIM
Fig. 4 Measurement field of the infrared camera TIM representing the 23° x 17° lens,
dimensions in mm, not to
scale
HFOV
Horizontal enlargement of the total measuring at object level
VFOV
Vertical enlargement of the total measuring at object level
IFOV
Size at the single pixel at object level
DFOV
Diagonal dimension of the total measuring field at object level
MFOV
Recommended, smallest measured object size of 3 x 3 pixel (not shown in the drawing above,
see
Fig. 4
)
The following tables with examples showing what spot sizes and pixel sizes will be reached in which distance.
For individual configuration there are different lenses available. Wide angle lenses have a radial distortion due
to their large opening angle; the software TIMConnect has an algorithm which corrects this distortion.