If you thought the standard Raspberry Pi Camera Module was great, then you’ll love the NoIR. It features an 8 megapixel Sony IMX219 sensor and a supporting PCB designed with the Raspberry Pi in mind.
NoIR is short for No InfraRed filter. It’s a version 2 camera module. You can use this as a normal camera but your colours will be a bit odd because the carera is picking up infrared light not normally visible.
They’re used for low light and IR photography. You can use infrared LEDs to light up a scene at night but you cant see it. The use these in security cameras for night vision.