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680465-001
FoldIR 30-450mm f/3.4
FoldIR 30-450mm f/3.4, High Durability
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 680465-001 FoldIR 30-450mm f/3.4 FoldIR 30-450mm f/3.4, High Durability
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680465-002
FoldIR 30-450mm f/3.4
FoldIR 30-450mm f/3.4, Hard carbon
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 680465-002 FoldIR 30-450mm f/3.4 FoldIR 30-450mm f/3.4, Hard carbon
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WFOV (10mm)

Format
Pitch 640x480 1280x1024
15 µm 19.3º
10 µm 12.5º 26.9º

NFOV (450)

Format
Pitch 640x480 1280x1024
15 µm 1.3º
10 µm 0.8º 1.7º

Specifications

  • Type
    Continuous Zoom
  • Focal Length
    30-450mm
  • F/#
    3.4
  • Avg.Trns.
    (3.4-4.9μm) 80% (HC)
  • Cold Stop FPA Distance
    19.4mm
  • Cold Stop Clear Aperture
    Ø5.7mm
  • Minimum Focus Range
    20m
  • Nuc (by defocus)
    Yes
  • Focus Mechanism
    Motorized
  • Focus Time
    <1sec
  • Zoom Mechanism
    Designated lens controller
  • Zoom Time
    <5sec
  • Weight
    2kg
  • Dimensions
    Ø146 x 247mm
  • Drive Voltage
    12V
  • Current Consumption
    <0.5A average, 1.0A peak
  • Communication Interface
    RS422, RS232
  • Operating Temperature Range
    20ºC to +55ºC
  • Storage Temperature Range
    -40ºC to +70ºC
  • Sealing
    IP67 front element only
  • Wavelength Region
    MWIR

Features

FoldIR 30-450mm f/3.4 Detection, Recognition & Identification (DRI) Range

DRI ranges enable one to easily estimate the maximum range that an object can be either detected, recognized or identified. It is important to note that these estimates are based solely on geometrical parameters – the target size, distance, lens focal length and camera detector pixel size. Signal level, detector sensitivity, atmospheric conditions and other factors are not considered!

The calculations used here are based on the “Johnson Criteria”. According to the Johnson Criteria, the minimum resolution, pixels on target, required to achieve a 50% probability for an observer to discriminate an object are:

  • Detection: An object is present – 2 pixels on target (Lower Bar)
  • Recognition: discern the type of object, a human vs. a vehicle – 8 pixels on target (Middle Bar)
  • Identification: discern specific objects, a man vs. a woman, a car model – 12.8 pixels on target (Upper Bar)

Introducing the FoldIR 30-450mm f/3.4: high performance, long-range, ideal for small size gimbals

Resources

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