Application of Infrared Imaging Technology in Security Field

Infrared thermal imaging is an image formed by detecting infrared energy emitted by a person or object. The main functions and features are no auxiliary light source; excellent fog (haze) performance; long monitoring distance, suitable for large-scale search targets; good anti-glare and anti-glare effects.

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Applications in security include fire monitoring, identification of camouflaged and hidden targets, and security patrols at night and in harsh weather conditions and other fields. The following is a detailed introduction for you.

At night, due to well-known reasons, visible light equipment can no longer work properly. If artificial lighting is used, it is easy to expose the target. If a low-light night vision device is used, it also works in the visible light band and still needs external lighting. The infrared thermal imager passively receives the infrared thermal radiation of the target itself, can work normally no matter the day or night, and will not expose itself.

Also under severe weather conditions such as rain and fog, due to the short wavelength of visible light, the ability to overcome obstacles is poor, so the observation effect is poor, but the wavelength of infrared light is long, especially for thermal imagers working at 8-14um, penetrating The ability of rain and fog is high, so the target can still be observed normally. Therefore, at night and in harsh weather conditions, infrared thermal imaging monitoring equipment can be used to monitor various targets such as personnel and vehicles. 

 

Since the infrared thermal imager is a device that reflects the surface temperature of an object, it can be used as an effective fire alarm device in addition to on-site monitoring at night. In a large area of forest, fires are often caused by an inconspicuously hidden fire. 

This is the root cause of devastating fires, and it is difficult to detect such hidden fire signs with existing ordinary methods. The application of an infrared thermal imager can quickly and effectively find these hidden fires, and can accurately determine the location and scope of the fire, and find the ignition point through the smoke, so as to know early, prevent it early, and put it out early. 

 

Ordinary camouflage is mainly to prevent visible light observation. Ordinary criminals usually hide in the grass and woods. Due to the harsh field environment and people's visual illusions, it is easy to make wrong judgments.

The infrared thermal imaging device passively accepts the thermal radiation of the target itself. The temperature and infrared radiation of the human body and the vehicle are generally far greater than the temperature and infrared radiation of the vegetation, so it is not easy to camouflage, and it is not easy to make wrong judgments. 

With the development of optoelectronic information, microelectronics, network communication, digital video, multimedia technology, and sensing technology, security monitoring technology has moved from traditional analog to highly integrated digital, intelligent and networked.

With the increase in market demand, modern high-tech almost all have applications or are about to be applied in security monitoring systems. Infrared thermal imaging technology, which has developed rapidly in modern sensing technology, has also begun to be applied in security systems. 

An important member of the thermal imager family - infrared thermal imaging night vision device

The infrared thermal imaging night vision device is a branch of the infrared thermal imager. The traditional infrared thermal imager is more of a handheld type than a telescope type and is mainly used in a traditional engineering inspection.

Infrared thermal imaging night vision device, another name is thermal imaging telescope, in fact, it can still be used very well during the day, but because it is mainly used at night to exert its effect, it is called infrared thermal imaging night vision device.

Infrared thermal imaging night vision devices have high technical requirements in production, so there are very few manufacturers that can produce infrared thermal imaging night vision devices in the world.

Quanhom is a professional custom infrared lens manufacturer. Our team bridges the gap between superior performance and limited budget, especially when we are involved in projects integrating high precision. Products include infrared optical assemblies for VIS/SWIR/MWIR/LWIR, eyepieces, infrared lens elements (from monoscopic to Quickly switching between multi-field and continuous zoom infrared lenses), etc. The excellent team at Quanhom has created many success stories for different applications such as thermal imaging sights for outdoor and defense use, thermal imaging monoculars/binoculars, border, and coastal security, maritime applications, and UAVs infrared payloads.