Night vision devices and thermal imagers allow you to maintain vigilance even in absolute darkness. Without this “eye” is not enough for night hunting, when performing a rescue or intelligence operations. What are the characteristics of such devices, experts told the price-aggregator E-Katalog.
Imagers: the purpose and features
Thermal imaging camera (imager) is a device for detecting any heat source that is used:
• for night hunting or observing wildlife;
• for the protection of territories and structures from intrusion;
• for detecting defects in thermal insulation of buildings;
• to conduct rescue operations in conditions of reduced visibility (heavy rain, fog, smoke);
• to detect concealed targets in teplocentrstroy dark and the daytime.
Popular digital imagers Pulsar. Members of the line Pulsar Quantum perceive rays of the infrared spectrum and can detect objects at a distance exceeding 1000 meters. This ability allows you to detect camouflaged technique (running engine or hot engine) or a living object, which is hidden in the tall grass, dense thickets of shrubs, smog or fog.
A powerful device, equipped with a frostproof OLED display (temperature range of use up to — 25 °C) and a large lens, provides the fine details of distant objects and is designed for hunters, adventurers, rescuers and commandos. The device self runs 4-5 hours without needing an external source of light. Three modes of calibration (silent manual tuning, automatic and semi-automatic) allow the observer to customize the mechanism. From damage and moisture penetration into the thermal imager is protected by a robust housing made of CFRP. Masked objects can’t escape this “eye in the sky.
Night vision devices: principle of operation and types
Night vision devices (NVD) are used to conduct covert surveillance in the open countryside or indoors in low light conditions. The principle of the device is based on strengthening weak sources of visible light through electro-optical converters.
There are several types of night vision devices:
• Glasses, who, with the help of straps attached to the protective helmet, free your hands and allow you to observe with both eyes. The angle to 40° and the absence of multiplicity (×1) help to realistically assess the dimensions of objects in the range of 100-600 m. This arrangement is preferred by climbers, rescuers, explorers of caves.
• Binoculars are a versatile class of PNV, which is used for hunting, when people search for protection and control of the territory. Due to the multiplicity ×5 increases the range of visibility.
• Monoculars — budget option for watching objects in the dark at a distance of from 100 to 600 m (range depends on the installed base of EOP).
• Attachments and scopes that are used for observation and aimed fire, are set for different types of firearms. Advanced models provide a range of recognition of the object at a distance of 900 m.
