IR Thermal Imaging Lenses For Counter Drone Platforms

Minimize False Positive Alerts With Ophir’s Infrared Continuous Zoom Lenses For High-Performance, Extended Vision Range

Drones’ proliferation in recent century raises potential security threats to both civilian and military entities. Such threats triggered to a new, rapidly emerging Counter-Unmanned Aerial Systems (C-UAS) technologies. Its mission is to detect, identify and disable such threats. Infrared (IR) based systems, or IR imaging combined in such multi-sensor types of systems, is a prevalent technology enabling detection, identification and tracking the small unmanned aerial system (sUAS).

Ophir designs and manufactures precise, long-range IR continuous zoom lenses for integration into premier C-UAS platforms.

Partnering with leading defense OEMs to design IR based counter-drone electro-optical systems, along with a proven track-record of numerous deployments in the field, Ophir delivers a wide selection of extended range IR thermal continuous zoom lenses.

Ophir lenses provide outstanding detection and identification, crisp clean imagery over the full zoom range, with MTF close to the diffraction limit quality, and accurate line-of-sight (LOS). The lenses work with various FPA formats including High Definition SXGA and VGA – for mission

The key to successful identification of a UAV or drone is to make sure that it covers enough pixels of the chosen sensor. Ophir’s continuous zoom lenses provide optical reach to take advantage of early radar detection. A precision zoom lens allows the operator to scan the area in wide field of view to note terrain or other interference as well as to view multiple drones operating in a swarm. Use of narrow field of view allows the operator to further identify the threat without loss of track or focus. Automated zoom interfaces allow C-UAS products to clearly show the target. This allows either operators or advanced artificial intelligence (AI) interfaces to determine the threat category of the target.

Ophir’s engineers have perfected the continuous zoom to maintain focus at each point in the full length of lens capability. MTF close to the diffraction limit allows for clearer images that both human and machine vision use for identification. These properties allow for high frame rate sensors to avoid image blurring on quick, fast-moving targets. Early, accurate, identification is key to reducing false positive alerts. Thanks to continuous zoom capabilities – tracking the target without losing sight.

Products Characteristics

  • High precision optics with MTF close to the diffraction limit
  • Continuous zoom providing adequate, focused pixels on target
  • Focus maintained through the full zoom range/ entire field-of-view range
  • Tight boresight retention
  • Extended identification ranges exceeding 8km
  • Ruggedized design for durability in harshest environmental conditions
  • Accurate Line-of-Sight (LOS)
  • Focal length ranges from 21mm to 1350mm
  • US and European military standard compliance for temperature, shock, vibration and environmental sealing including DIN 3140, IPC 620, MIL PRF 13830, Mil-PRF 85285, MIL STD 810, MIL-C-48497, MIL-C-48616, ISO 10110 sections 1-19, ANSI\ASQ Z1.4.
  • Available with high durability (HD) or hard carbon (HC) coatings

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