You're right! Diving into the world of thermal cameras is fascinating, but it quickly requires us to understand a special, invisible slice of the light spectrum—the Infrared (IR) range . 1. Where Heat Hides: Mapping the Infrared Spectrum Normal cameras see visible light  ( the familiar rainbow, from about 0.4 µm to 0.7 µm ). Thermal cameras operate in the Infrared (IR) spectrum , which is simply energy with wavelengths longer than visible light. This is the realm where ther

If you think a thermal camera (or infrared camera) is just a regular RGB camera tailored for another frequency range—maybe just shooting in black and white or false color—you're mistaken. It's a completely different device! A thermal camera isn't designed to capture what things look like; it's designed to capture the objects' energy state. It doesn't see "shape" based on reflected light; it sees temperature based on emitted heat. Here's a breakdown of why thermal imaging is a