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How do night vision security cameras work?

Thanks to our ever advancing technologies, night vision has become a standard feature for most security cameras. Night vision security cameras allow us to keep a close watch on our homes or businesses around the clock. But how can these security cameras is near to total darkness? There are three different methods: low-light, thermal imaging, and infrared illumination.


Low-light security cameras use image intensifiers which make the most of a faint light source. Because they are attuned to work with limited light sources, the pictures they produce in these settings are excellent. Some low-light cameras can even identify persons. Of the different methods employed, this seems to be the most affordable and is commonly used among homeowners.

Thermal Imaging

Thermal imaging technology uses temperature instead of light sources to produce images. This is based on the principle that objects radiate infrared due to temperature. This infrared energy, which is intensified with higher temperatures, creates the thermal image. When objects are cold, the image produced is black, whereas hot objects produce white images. Some thermal cameras can produce color images, and can even detect objects from far distances. Unfortunately, thermal imaging has yet to gain mainstream popularity, but is rather useful in other settings.


Home security cameras utilize infrared illumination and motion detection for effective night surveillance. When the security camera detects motion, the infrared illumination lights up and captures images. Because the infrared is only triggered by motion, this saves power. LED lights enhance performance to produce excellent black and white videos and images. Infrared security cameras are often used for outdoor home surveillance.

Choosing the appropriate security camera will depend on your individual needs. If you need help choosing a night vision security camera, please feel free to contact us at 1-888-203-6294. You may also visit us online to browse our stock, or connect with us on Facebook, Google+, Twitter, and Pinterest.

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