When working with lasers, eye protection is essential to safeguard against both immediate and long-term damage. Red laser safety glasses are specifically designed to block or reduce harmful wavelengths within defined ranges typically from 625nm to 700nm, ensuring the wearer’s eyes remain protected while maintaining visibility for safe operation.

Certified Protection

The LG-004 Fitover Glasses are certified to Australian and international laser safety standards, including AS/NZS IEC 60825.14:2014, AS/NZS 1336:2014, AS/NZS ISO 19818.1:2023, as well as FDA and EN207/208. This ensures that they meet stringent requirements for optical density (OD) and laser resistance across relevant wavelength ranges.

Optical Densities and Wavelengths

The protection these glasses provide is described in terms of optical density (OD) at specific wavelengths:

• 625–850 nm → OD 4+

• 662–835 nm → OD 5+

• 633 nm → OD 5+

• 190–400 nm → OD 5+

In practice, this means the eyewear significantly reduces laser transmission within these wavelength bands, offering a high level of attenuation against both visible red lasers and certain ultraviolet sources.

Laser Classes and Ratings

The glasses also carry L-ratings, which specify resistance levels against various classes of laser exposure:

• 0D LB5, 315–400 IR LB6

• 625–830 DIR LB4, 830–850 DIR LB3

• 625–670 LB4, 800–830 LB4

• 670–800 LB5

These ratings provide assurance that the eyewear has been tested for durability against direct and scattered laser exposure.

Typical Laser Applications

The wavelength ranges listed cover many common red laser systems, including:

• 632.8 nm (He-Ne lasers)

• 635–690 nm diode lasers

• 650 nm, 660 nm, 670 nm, 680 nm, and 690 nm sources

• Infrared diodes at 785 nm, 808 nm, 810 nm, and 830 nm

This wide spectrum ensures protection across laboratory, industrial, and research applications where multiple red and near-infrared lasers may be in use.