Characteristics and Technology of Short-wave Infrared Imaging

Characteristics and Technology of Short-wave Infrared Imaging

Ⅰ. Advantages of short-wave infrared imaging

The short-wave infrared band refers to the wavelengths between 1000-3000 nanometers, and these spectra cannot be recognized by the naked eye. Minerals, man-made substances, and some other living things have special components that SWIR can "see".

Why use SWIR? Because SWIR has some of the following advantages:

One of the major advantages of short wave infrared imaging over other techniques is that it enables short wave infrared imaging through glass. For short wave infrared cameras, special expensive lenses or housings for harsh environments are almost unnecessary.

This allows them to be used in a wide variety of applications and industries. This capability also allows the short wave infrared camera to be mounted within a protective window, which would provide a great deal of flexibility when fixing the short wave infrared camera system on a potential platform.

Ⅱ. Features of SWIR Shortwave Infrared Imaging Technology

1. High recognition degree: short-wave infrared SWIR imaging is mainly based on the original image of the target reflected light.

The imaging features are similar to those of the visible light grayscale image, the short-wave infrared imaging has high contrast, and the short wave infrared imaging target details are clearly expressed. In terms of target recognition, SWIR imaging is an important complement to thermal imaging technology.

2. All-weather adaptation: Short-wave infrared SWIR imaging is less affected by atmospheric scattering, and short-wave infrared imaging has strong ability to penetrate fog, haze, and smoke, and has a long effective detection distance. The adaptability of short wave infrared imaging to climatic conditions and battlefield environment is obviously better than that of visible light imaging.

3. Low-light night vision: Under the night vision condition of atmospheric glow, the photon irradiance is mainly distributed in the SWIR band range of 1.0-1.8 μm, which makes SWIR night vision imaging more powerful than visible light night vision imaging.

4. Stealth active imaging: In the 0.9-1.7μm band, the military laser light source technology is mature (1.06μm, 1.55μm), which makes short-wave infrared imaging have a significant comparative advantage in stealth active imaging applications.

5. Simple optical configuration: Optically, the glass light window has a high transmittance in the SWIR band, which gives SWIR short-wave infrared imaging an important technical advantage.

This allows the SWIR camera to be mounted within a protective window for highly sensitive imaging, which provides great flexibility when SWIR imaging is applied to a specific platform or situation.

Dongguan Zillion Technologies Co., Ltd. offers a wide range of short-wave infrared (SWIR) products, including SWIR sensors, SWIR cameras, and SWIR lenses. We aim to provide global customers with state-of-the-art products and solutions to meet their various application needs. Welcome customers from all over the world to visit and consult.

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