Compare Model Drawings, CAD & Specs Availability Price
680157-004
SupIR 25-225mm f/1.5
LWIR Motorized Continuous Zoom Lens, SupIR, 25-225 mm FL, f/1.5, High Durability, HD
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 680157-004 SupIR 25-225mm f/1.5 LWIR Motorized Continuous Zoom Lens, SupIR, 25-225 mm FL, f/1.5, High Durability, HD
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680157-005
SupIR 25-225mm f/1.5
LWIR Motorized Continuous Zoom Lens, SupIR, 25-225 mm FL, f/1.5, Hard Carbon, HD
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 680157-005 SupIR 25-225mm f/1.5 LWIR Motorized Continuous Zoom Lens, SupIR, 25-225 mm FL, f/1.5, Hard Carbon, HD
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680157-006
SupIR 25-225mm f/1.5
LWIR Motorized Continuous Zoom Lens, SupIR, 25-225 mm FL, f/1.5, Low Reflection Hard Carbon, HD
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 680157-006 SupIR 25-225mm f/1.5 LWIR Motorized Continuous Zoom Lens, SupIR, 25-225 mm FL, f/1.5, Low Reflection Hard Carbon, HD
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WFOV (25 mm)

Format
Pitch 320x240 640x480 1024x768 1280x1024
17 µm 12.5° 25.2° 41.1°
12 µm 8.8° 17.7° 28.6° 35.9°

NFOV (225 mm)

Format
Pitch 320x240 640x480 1024x768 1280x1024
17 µm 1.4° 2.8° 4.4°
12 µm 1.0° 1.9° 3.1° 3.9°

Specifications

  • Type
    Continuous Zoom
  • Focal Length
    25-225 mm
  • F/#
    1.5
  • Spectral Range
    8-12 µm
  • Back Focal Length
    30.743 mm in air
  • HD Format
    Yes
  • Minimum Focus Range
    1m Wide, >20 m Narrow
  • Nuc (by defocus)
    Yes
  • Focus Mechanism
    Motorized
  • Focus Time
    ≤3 sec
  • Zoom Mechanism
    Motorized
  • Zoom Time
    ≤8 sec
  • Operating Temperature Range
    -32°C to +70°C
  • Storage Temperature Range
    -54°C to +85°C
  • Sealing
    IP 67 front element only
  • Drive Voltage
    12 V
  • Current Consumption
    0.5 A average, 3.5 A peak
  • Communication Interface
    RS422
  • Wavelength Region
    LWIR

Features

SupIR 25-225mm f/1.5 Detection, Recognition & Identification (DRI) Range

* Assumptions: 50mK NETD (f/1.0) for LWIR uncooled detectors | 30Hz frame rate | 50% detection probability | 0.2km-1 atmospheric attenuation coefficient | human ΔT = 5°C | vehicle ΔT = 2°C

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)

Ophir’s Long-Range LWIR 25-225mm f/1.5 Integrated in Silent Sentinel’s Osiris Ranger LR

High Performance Long Wave Focal Plane

Using advanced technologies, top-quality materials and unique coating techniques, together with innovative engineering and opto-mechanical designs, we have earned a reputation for excellent performance, durability and quality.

High-durability and Hard-carbon AR Coatings

Our highly abrasion-resistant, anti-reflective advanced optical coatings include several types of Hard Carbon coatings which provide maximum durability, energy transmission & minimal reflection. Our innovative coating technologies include:

  • Physical Vapor Deposition (PVD) – Thermal heating and electron gun
  • Ion Assisted Deposition (IAD) – Ion gun
  • Plasma Enhanced Chemical Vapor Deposition (PECVD) for DLC coatings

Passive Athermalized Lens Assembly

Our IR imaging lens assemblies incorporate passive athermalization of the lenses and opto-mechanical system to maintain the highest imaging performance over the full operating temperature range. We use advanced materials that enable unique athermalization properties and optomechanical designs that effectively compensate for optical variations over a wide temperature range.

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