Datasheet

6/21/2018 NDVI
http://www.arducam.com/arducam-noir-raspberry-pi-camera-motorized-ir-cut-filter/ 2/4
cut filter which only allows visible light to pass through, reflecting unwanted infrared. This is where
standard color version pi camera used for.
Motorized (Switchable) infrared-cut filters
There are some instances where capturing infrared light is an advantage. In low-light conditions,
cameras capture as much light as possible to produce brighter images, regardless of color. For
this reason, some entry-level night-vision cameras don’t feature a cut filter, instead capturing
infrared light from on-board LEDs at night at the expense of true color reproduction during the
daytime.
The optimum solution is to use a switchable infrared-cut filter. In daylight, the filter covers the
sensor to provide color footage, while at night the filter opens for a brighter image. In industry
terms, these cameras are known as day/night or true day/night cameras.
These cameras can be combined with infrared lamps which are much more discreet than
conventional white-light lighting, since the light produced can’t be seen by the human eye.
Solution
Sometimes you need the camera to work on both daylight and dark (night time) conditions, like the
IP-based security camera. ArduCAM pi cameras now feature a motorized IR-cut filter on NoIR pi
camera board, the IR-cut can be switched on in the daylight and can be switched off at night, and
cooperated with IR light source for night vision. The highlight of this motorized IR-cut mechanism is
no additional cable needed between the Raspberry Pi board and camera board.