Visor often implies shielding eyes from harm such as sunlight or debris during activities. The welder's helmet had a darkened visor for eye protection.
Pro Tip 2/3
Sports Equipment
Commonly found on sports accessories like helmets and caps, especially in baseball and cycling. Her cycling helmet's visor kept the rain out of her eyes.
Pro Tip 3/3
Adjustable Feature
Many visors are movable or detachable, allowing them to be positioned as needed. He adjusted the visor on his cap to get a better view.