LightIR 20–275mm f/5.5 MWIR Motorized Continuous Zoom Lenses
LightIR 20–275mm f/5.5 MWIR Motorized Continuous Zoom Lenses
Low-SWaP MWIR zoom lens with long-range detection capability
The LightIR 20-275mm f/5.5 at only 264 g, this is the smallest, most lightweight continuous zoom lens on the market, with long-range capabilities of up to 14.9 km detection range. Featuring an innovative and unique optomechanical design and focus movement. The end result is the highest thermal imaging performance on the market, ideal for stabilized payloads in a variety of drones, UAVs, and handheld devices for SWaP applications.
- Smallest, most lightweight continuous zoom lens on the market
- Long-range capabilities of up to 14.9 km detection range
- Unique optomechanical design and focus movement
- High-durability and low reflection hard-carbon 3-5 µm wavelength AR coatings See All Features
HFOV [deg]
WFOV (20 mm)
| Format | |||
|---|---|---|---|
| Pitch | 640x512 | ||
| 15 µm | 28.0° | ||
NFOV (275 mm)
| Format | |||
|---|---|---|---|
| Pitch | 640x512 | ||
| 15 µm | 1.9° | ||
Features
LightIR 20-275mm f/5.5 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)
High Performance Mid-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.
Applications
Commercial
Defense
Resources
Application Notes
Drone Infrared Imaging UAV Infrared Imaging Hand Held Thermal Imagers and Weapon Sights Naval Thermal Imaging Maritime Thermal Imaging Advanced IR Optical Assemblies for UAVs and Drones(502.2 kB, PDF) Advanced IR Optical Assemblies for UAVs and Drones Meeting SWaP constraints
Data Sheets
LightIR 20-275 mm f/5.5 Data Sheet(290.6 kB, PDF)
Drawings & CAD
680314 Interface Control Document(279.4 kB, PDF)
Literature
High Performance Optics for UAV Payloads and Drones(1.1 MB, PDF) IR Long Range Zoom Lenses Brochure(9.5 MB, PDF) IR Lightweight and Compact Zoom Lenses(2.1 MB, PDF)
Technical Articles
Webinars
Videos
LightIR Lightweight Zoom Lenses for MWIR and LWIR Cameras(0:52) Ophir LightIR 20-275mm f/5.5 MWIR lens, integrated with Markos 640 by i3 Systems(0:52) AquaShieldIR™ Hydrophobic Coating for Maritime and Naval Security & Surveillance IR Systems(1:09) Low-SWaP, Compact Zoom Lenses for MWIR VGA 10µm Detectors(1:05)
