When working with lasers, protecting your eyes is critical. Choosing the right laser safety glasses ensures you receive the correct protection without compromising visibility or comfort. However, not all laser safety glasses are the same. This guide will help you understand how to select the best laser safety eyewear for your needs.
1. Identify the Laser Wavelength(s) You Need Protection From
Laser safety glasses are designed to block specific wavelength ranges. You must know the wavelength(s) of the laser you are using to choose the appropriate protection.
Check your laser’s specifications – Most lasers list their wavelength(s) in nanometers (nm) on the label or technical sheet.
Common laser wavelengths:
• UV Lasers: 180-400 nm
• Visible Lasers (Red, Green, Blue): 400-700 nm
• Infrared Lasers (IR): 700-3000 nm
If your laser operates at multiple wavelengths, you’ll need broad-spectrum protection.
2. Check the Optical Density (OD) Rating
The Optical Density (OD) indicates how much light at a specific wavelength is blocked. The higher the OD, the greater the protection.
Example: If your laser operates at 532 nm (green), you may need OD 5+ @ 532 nm, meaning the glasses block at least 99.999% of that wavelength.
Where to find OD ratings?
• Check the laser’s manual for the recommended OD.
• Look at the certification markings on the laser safety glasses.
3. Verify Certification & Compliance
Not all laser safety glasses meet official safety standards. Look for certifications like:
ANSI Z136.1 (U.S. laser safety standard)
EN 207/EN 208 (European laser safety standards)
AS/NZS 1337.4 (Australian laser safety compliance)
Always choose glasses that comply with industry safety regulations.
4. Consider Comfort & Fit
Adjustable frame styles – Ensure a snug fit for prolonged wear.
Wraparound designs – Provide side protection from stray laser beams.
Over-the-glasses (OTG) & universal fit-over models – Fit over prescription eyewear and often have protective side shields
Tip: If multiple users will share the glasses, choose a universal fitover model.
Choosing the right laser safety glasses involves understanding wavelength protection, OD ratings, materials, certifications, and comfort features. Never compromise on safety—proper eyewear can prevent irreversible eye damage from laser exposure. If you would like assistance don't hesitate to contact us