The OAK-FFC IR is an illumination LED (night vision) and infra-red laser dot projector (active stereo) board that adds Pro capabilities to the OAK-FFC-4P (R5 or newer revision). See syncing docs on how to enable the OAK-FFC IR.
IR illumination LED: allows perceiving low-light and no-light environments (night vision), SFH 4715AS
IR laser dot projector (active stereo): improves depth perception, especially for low-visual-interest surfaces (little or no surface texture), BELAGO 1.1
Package includes 15 cm flexible flat cable
The dot projector board has been certified within OAK-D-Pro/-PoE according to all regulations. It meets the requirements for being classified as an eye-safe Class 1 device, which means it is not harmful to the eyes or skin, provided that proper heat sinking and other safety considerations are in place to prevent thermal and mechanical damage.