What is an Auto-Darkening Welding Helmet?
Any type of welding requires advanced eye protection to prevent corneal damage from the ultraviolet light of the weld. Welders must wear a protective welding helmet that covers the face to protect from sparks and flying material; this helmet includes a special darkened eye shield to prevent the cornea from being damaged. This condition is called arc eye and can be extremely uncomfortable. The eye protection of the welder’s helmet can also prevent retinal damage. Every welding helmet includes a lens shade, or the eyepiece through which the welder looks at his weld. It is a heavily darkened and polarized lens that only lets in a certain amount of light. Because the lens is so dark, it is extremely difficult to see anything through it aside from the welding light itself. Therefore, the auto-darkening welding helmet has become popular in recent years. The auto-darkening welding helmet does exactly what its name implies: its lens automatically darkens when the light from the weld begins to
