Photography is great, but sometimes it can get boring just reusing the same wavelengths over and over again. There are other options, though and when [Malcolm Wilson] decided he wanted to explore them ...

The new Dallmeier DF4920HD-DN/IR is a weather-proof HD network camera with automatic day/night switching and integrated infrared illumination. The camera provides real-time full HD video (1080p/30) ...

I think that at some point in the future, smart phones will have a built in infrared camera. But for now, you are going to have to use an IR camera add on. This is the Seek Thermal infrared camera.

Avigilon 2.0C-H5A-D1-IR Surface Mount Indoor Dome Camera Avigilon 4.0C-H5A-D1-IR Surface Mount Indoor Dome Camera Avigilon 2.0C-H4IRPTZ-DP30-WP 2MP H4 IR PTZ, with Wiper 30X, Selflearning analytics, ...