These look like typical security cameras. They let out a white spotlight, and when they spot the player, this turns red and they make a beeping noise. In order to avoid them, they must be sprinted past when they are not looking in your direction, but a far better solution is to just shoot them. They usually just lock doors, although in one instance a camera activates turrets when it sees you. A couple of cameras seem to do nothing at all and exist purely for scenery.