VLT-Visible Light Transmission | One Of The Most Important Indicators Of Laser Safety Glasses/Windows
Most eyewear is designed to protect your eyes from specific wavelengths of light while allowing other wavelengths in the visible spectrum to pass through so you can see clearly.
Visible Light Transmission (VLT) refers to the amount of light that can pass through the lens of a pair of glasses. Here’s a simple way to understand it:
- Low VLT: Less light passes through the lens, making your vision darker. This is like wearing inexpensive sunglasses that block the sun effectively but can make everything look too dark.
- High VLT: More light passes through the lens, allowing you to see colors and details more clearly. High-quality sunglasses typically have a higher VLT, which means they block harmful rays from the sun while keeping the surroundings bright and natural.
When choosing glasses, it’s important to consider not just the amount of light being blocked, but also the range of visible light that is allowed through. This ensures that you have clear and accurate vision without unnecessary distortion.
In summary, VLT is an important factor in eyewear because it helps balance protection and clarity. Higher VLT lenses usually offer better visual comfort by maintaining natural brightness while still protecting your eyes.
