Infrared light refers to invisible light with a wavelength greater than 750nm. Any object in nature is a source of infrared radiation. Using this, people can see many things in nature that are invisible to the naked eye. In fact, infrared technology is used in many fields such as security surveillance, emergency rescue, vehicle night vision, criminal investigation communication, and consumer electronics. In the process of firefighting and emergency rescue, the resolution capability of infrared optical lens plays a crucial role.
Infrared optical products are made from germanium-based substances or other materials with low absorption and reflectivity in the infrared spectrum. Germanium glass is a semi-metal element similar to silicon. It is completely opaque in the visible light world, but in the infrared world, it has very high transmittance, allowing it to distinguish between living beings and plants in extremely dark environments.
When searching for trapped individuals in dark environments such as at night or in tunnels, the infrared optical lens of a night vision device can overcome visible light limitations. It can image clearly despite dense fog, rain, snow, smog, and other weather conditions to find hidden trapped individuals. Infrared thermal imaging products can also be used for long-distance 24-hour monitoring of seepage points, cracks, collapses, and water flow in reservoirs, observing flood disasters, landslides, and dam water levels. These can monitor more extensive and hard-to-reach areas and find target objects in precise search mode.
In flood disasters, the water surface is mixed with various floating objects, making the environment for rescuers quite complex and difficult to search. Since humans are warm-blooded animals, their body temperature is usually significantly different from the surrounding environment temperature. This difference is reflected as a very strong color contrast under infrared optical lens. Infrared thermal imaging night vision devices can help rescuers detect trapped individuals early, gaining rescue time.
In the event of a fire, using a portable infrared thermal imager can quickly determine the location, burning degree, and spread of the flames without being interfered by thick smoke, fog, or dust, effectively improving rescue efficiency.
Based on the basic functions of temperature measurement and night vision, infrared optical lens is one of the core components of infrared thermal imaging products. The application of infrared optical lens also endows emergency rescue with high-tech capabilities akin to having "fire eyes," continuously exploring areas beyond human vision.
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