Visible Light Transmission

VLT: Understand Your Lenses, Your Environment, and Make Good Choices

Let’s define VLT… Visible Light Transmission Simply put, VLT is the amount of visible light that can pass (or transmit) through an optical lens. VLT is measured and expressed as a percentage. Think...
Eye protection

Eye Armor: The ANSI Z87.1+ Standard

It's a typical workday. Sweat beads on your brow, tools whir in the background, and a stray metal fragment shoots across the workshop. In that split second, the only thing separating your precious ...