LightIR 18-225 mm f/4.0 Motorized MWIR SXGA Zoom Imaging Lens
LightIR 18-225 mm f/4.0 Motorized MWIR SXGA Zoom Imaging Lens
Low-SWaP MWIR zoom lens for SXGA/VGA detectors with >16 km range
The LightIR 18-225mm f/4.0 lightweight continuous zoom lens features long-range capabilities of up to 16 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.
- Efficient compact optics design for max. volume use
- Designed for MWIR 10 µm SXGA and 15 µm VGA Detectors
- Ideal for mini/micro tactical payloads
- Detection range exceeds 16 km See All Features
HFOV [deg]
WFOV (18 mm)
| Format | ||||
|---|---|---|---|---|
| Pitch | 640x512 | 1280x1024 | ||
| 15 µm | 29.9° | |||
| 10 µm | 20.2° | 39.1° | ||
NFOV (225 mm)
| Format | ||||
|---|---|---|---|---|
| Pitch | 640x512 | 1280x1024 | ||
| 15 µm | 2.4° | |||
| 10 µm | 1.6° | 3.3° | ||
Features
LightIR 18-225mm f/4.0 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.
Resources
Data Sheets
LightIR 18-225 mm f/4.0 Data Sheet(1 MB, PDF)
Drawings & CAD
680473 Interface Control Document (2.1 MB, PDF)
Technical Articles
Literature
IR Lightweight and Compact Zoom Lenses(2.1 MB, PDF) High Performance Optics for UAV Payloads and Drones(1.1 MB, PDF) LightIR 18-225mm f/4 Product Overview (1.1 MB, PDF)
