Low-SWaP, high-performance LWIR lens for aerial and handheld thermal imaging systems
The LightIR 15-75mm f/1.2 motorized focus imaging lens is optimized for 10-12 micron pixel size uncooled LWIR cameras. This lens weighs only 320 g, making it the most lightweight continuous zoom lenses on the market, with up to 7.1 km detection range.
Most lightweight, compact, continuous zoom lenses on the market at 320 g
Ideal for low-SWaP applications
Optimized for 10-12 micron pixel size uncooled LWIR cameras
Maintains sharp focus over the entire motorized 15-60 mm zoom range
LWIR High-durability and hard-carbon AR coatings for 8-12 µm
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)
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.
Ultra-High Velocity