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The IR projector is tucked within the camera assembly, but our trusty tweezers make removing it a breeze.

An IR projector provides infrared light that other (non-RGB) cameras can use to get a sense of an area in 3D space.

Curious how this works? We've got you covered. Science with iFixit is ready to satisfy all of your IR curiosities.

From Google: "The IR projector is from Mantis Vision, and designed specific to our specs for field of view and resolution. It is custom designed to work in partnership with the 4MP RGB-IR camera on the other side."

Looks like we found out what the "cam glue" marking meant! The two rear-facing cameras are hot-glued to the camera assembly, making replacement difficult.