If you need security and surveillance coverage in poorly lit or no light areas, you should try using an infrared camera system. In the following article we’ll talk about how these cameras work and what to look (out) for when purchasing a system.
Under normal daylight conditions a digital video security camera utilizes the light waves that are reflected from the objects in its field of vision. It does this by using a lens to focus the entire image onto a sensor chip that is usually 1/4 or 1/3 of an inch square. The sensor chips work by converting the light energy into a small electrical impulse which can be measured and therefore ultimately used to create a digital video image.