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Uncooled thermal lens

Hertfordshire-based Silent Sentinel has expanded its Aeron Ranger suite of cameras to include a 25-150mm Long Wavelength Infrared (LWIR) uncooled thermal lens, which replaces the 50-150mm lens. This new lens offers crisp images within a rugged housing, the makers say.

The new F1.4 lens features a 6x motorised optical zoom as well as a narrow horizontal field of view: 25.4 degrees (W) – 4.1 degrees (T) and is capable of detecting human targets at ranges of over three kilometres and vehicles at a range of ten kilometres (based on Johnson’s Criteria).

This new lens is part of the Aeron Ranger suite of cameras, a series of compact and ruggedized thermal sensors capable of being deployed in deserts and Arctic coastlines. They can operate within a temperature range of minus 30 degrees C to 65 degrees C and are tested to an IP67 level of environmental protection for performance even in extreme conditions. This means that the Aeron Rangers can withstand the harshest surroundings in challenging applications such as maritime and border security as well as vehicle mount installations, the firm says.

The Aeron Ranger’s 360 degrees continuous rotation and rapid pan and tilt speeds mean that it can detect small targets in remote locations and in a variety of climates. Aeron Rangers have previously been deployed on police vehicles in Europe, at airports in the Middle East, and for CNI (critical national infrastructure) applications in North America.

Silent Sentinel provides surveillance and security systems, specialising in cooled and uncooled long-range thermal camera platforms. Products have been exported to over 50 countries.

James Longcroft, Sales Director at Silent Sentinel said: “The introduction of this new lens illustrates our commitment to keeping the Aeron platform at the cutting edge of threat detection. By incorporating this new lens, we are able to provide a competitively positioned, compact and ruggedized camera that offers best-in-class performance even in brutal conditions. Our expertise lies in combining accuracy and durability to ensure the precise recognition of small targets at long range in challenging environments.”



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