What is a SWIR camera?

Government and military technology eventually seems to find it way to consumer markets- GPS and night-vision being two great examples.

There is a new technology in early development called SWIR, or Short Wave Infrared camera technology.

Users want to use camera to see in darkness, and the ubiquitous technology uses IR sensors (often arrayed in a ring surrounding the lens) to detect Infrared waves. Being outside the spectrum of visible light, these waves can be detected in darkness, but often with very limited range. A typical IR range might be 10-30 meters for a home camera, and IR detection tends to consume a lot of power.

Along comes SWIR which actually still uses IR, but at the fringe of visible light. Instead of detecting classical IR wavelengths (aka, HEAT), these detect reflected IR energies. They offer advantages in power consumption and perhaps even camera range. The technology is new, using GaAs detectors (which few semiconductor companies can produce).

Watch for SWIR technology to start finding it's way into consumer camera in the next few years!