8. The thermal imager's
FOV
(Field of view) is 21 by 21 degrees.
9.
FOV
is the largest area that your imager can see at a set
distance.
10. This table lists the horizontal
FOV
, vertical
FOV
and
IFOV
for
the lense.
Focal Length
Horizontal FOV
Vertical
FOVIFOV
7.5mm
21°
21°
4.53mrad
IFOV
(Instantaneous Field of View) is the smallest detail within the
FOV
that can be detected or seen at a set distance, the unit is rad. The
formula is this:
IFOV = ( Pixel Size )/ ( Lens focal length );
D:S (theoretical) [= 1/
IFOV
(theoretical)] is the calculated spot size
based on the pixel size of the Thermal Imager detector array and lens
focal length.
Example: If the Thermal Imager uses a 9mm lens, the pixel size of the
detector is 34um.
Horizontal
FOV
is 21°, Vertical
FOV
is 21°, the
IFOV
is 34um/7.5mm =
4.53mrad;
D:S (theoretical) [= 1/
IFOV
(theoretical)= 220:1]
MAX 10A
24
