Infrared optics are used to collect, focus or collimate light in the near-infrared (NIR), short-wave infrared (SWIR), mid-wave infrared (MWIR) or long-wave infrared (LWIR) spectra....

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Short-wave infrared (SWIR) light is a second of the electromagnetic spectrum typically in the 0.9μm to 2.5μm range and is therefore invisible to the human...

Edmunds

Shortwave Infrared (SWIR) wavelength band offers unique imaging advantages over visible and other thermal bands. It is quietly earning a growing place in industrial machine vision for electronic board inspection, material/food sorting, solar cell inspection, quality inspection, and in security applications. SWIR lenses are utilized where other detectors or cameras are not sensitive enough for finite detail recognition.

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The infrared thermal imaging system plays a key role in the non-destructive structural investigation in the shipbuilding industry.