What is the function of welding goggles?

Welding goggles are specifically designed to protect the eyes from the intense light produced during welding operations. When welding, a bright arc is created that emits ultraviolet (UV) and infrared (IR) radiation, as well as intense visible light. This exposure can cause serious damage to the eyes, including conditions like arc eye (or flash burn), which is very painful and can lead to temporary vision loss.

The lenses of welding goggles are tinted to filter out harmful light wavelengths while still allowing the welder to see what they are working on. This protective feature is crucial for maintaining eye safety while working in environments where bright sparks and flashes are common. Thus, the primary function of welding goggles is to ensure that the welder's eyes are safeguarded from these hazards, allowing them to work safely and effectively.