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What is a Long-Wavelength Infrared (LWIR) Camera?
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Long-wavelength infrared (LWIR) cameras detect thermal radiation in the 7.5 – 14.0 wavelength range of the electromagnetic spectrum, a band where most objects at or near ambient temperature emit the strongest infrared energy. Unlike visible-light cameras that rely on reflected light, an LWIR camera measures heat radiated directly from surfaces, enabling detailed thermal imaging in complete darkness, through smoke, and in conditions where other imaging technologies can fall short. This ability to visualize temperature differences across a scene is thermal imaging, and the LWIR band is the most widely used wavelength range for this purpose.
Top Applications for SWIR Cameras
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Shortwave infrared (SWIR) cameras have become a standard tool across a wide range of industries, valued for their ability to detect material properties, surface conditions, and subsurface features that other imaging systems miss. The specific characteristics of the SWIR band make it well-suited for certain measurement and inspection challenges, and the applications below illustrate where these cameras consistently deliver results that visible light and longer-wave infrared systems cannot match.
What’s the Difference Between Multispectral and Hyperspectral Cameras
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Imaging systems that operate beyond the visible spectrum have become essential tools across industrial, scientific, and defense applications. Two technologies often discussed together are multispectral and hyperspectral imaging, yet they serve different purposes and operate according to distinct principles.
Photron’s New W5/W2 Series of High Speed Imaging Cameras
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High-speed imaging continues to advance as engineers and researchers demand more from compact camera systems, and Photron's new FASTCAM Mini W Series delivers on that demand. The FASTCAM Mini W5 and FASTCAM Mini W2 are 2.4-megapixel cameras built for full-frame recording at 5,000 fps and 2,000 fps, housed in the same compact, 100G-rated package as Photron's existing Mini R cameras.