Co je visor? Co je visor? A piece projecting from the front of a cap or an elastic headband to shade or protect the eyes.A fixed or movable shield against glare attached above the windshield of an automotive vehicle.The front piece of the helmet of a suit of armor, capable of being raised and lowered and designed to protect the eyes, nose, and forehead.A means of concealment or disguise; a mask.To provide or protect with a visor.