Zoom lens LWIR F '= 25-225 mm F#/ 1.5
Parameter Value
Spectral range, μm 8 - 12
Main wavelength (λ0), μm 10
Minimum focal length at λ0, mm 25,0
Maximum focal length at λ0, mm 225,0
Aperture ratio 1:1.5
Back focal length, mm 43,4
Image plane Fixed throughout focal range
Optical system length, mm 182,1
Minimum field of view, 2ω, deg 3,5
Maximum field of view, 2ω, deg 30,9
Linear field in image space, 2y ', mm 13,8
Maximum distortion,% -2,70
The minimum distance to the object, m 3 m (f '= 25 mm)
30 m (f '= 225 mm)
Operating temperature range, degrees Celsius -30…+60

×ÊÕ äëÿ ôîêóñíîãî ðàññòîÿíèÿ 25 ìì

MTF for a focal length of 25 mm

×ÊÕ äëÿ ôîêóñíîãî ðàññòîÿíèÿ 141 ìì

MTF for a focal length of 141 mm

×ÊÕ äëÿ ôîêóñíîãî ðàññòîÿíèÿ 225 ìì

MTF for a focal length of 225 mm