Laser systems operating in the red and near-infrared (IR) spectrum between 635 nm and 850 nm are widely used across research, medical, industrial, and educational applications. While these wavelengths are not visible at the higher end of the range, they pose significant risks to eye safety. Exposure can cause retinal injury, leading to partial or permanent vision loss.

To mitigate these hazards, protective eyewear designed for the specific wavelength range is essential. The LG-004 Laser Safety Glasses are manufactured to provide reliable protection across this spectrum, making them suitable for a variety of environments where Class 3B and Class 4 lasers are in use.

Protection Range

The LG-004 glasses are designed for broad coverage within the 635 nm to 850 nm range. This includes both visible red light lasers (e.g., 635–650 nm commonly used in alignment or pointers) and near-infrared diode lasers used in telecommunications, research, and medical procedures.

The specifications include:

• 635–680 nm: Optical Density (OD) 6+

• 620–635 nm: OD 6+

• 823–850 nm: OD 6+

• 1000–1600 nm: OD 7+

These optical density ratings indicate that the glasses block laser light in these ranges by a factor of at least 10⁶ (for OD 6+) or 10⁷ (for OD 7+), significantly reducing exposure to safe levels.

Certification Standards

The LG-004 glasses comply with:

• EN207/208 (European Standards for Laser Safety Eyewear)

• AU/NZS 1337.1 and AU/NZS 1336:2023 (Australian/New Zealand safety standards for protective eyewear)

These certifications ensure the product has undergone independent testing for resistance to laser radiation, optical density performance, and mechanical durability.

Design

The universal fit design ensures that the glasses are suitable for a wide range of users, including those who do not wear prescription lenses. The wraparound style provides additional side protection, helping to reduce exposure to scattered or reflected beams.

Comfort features such as lightweight construction and balanced frame design support extended wear in laboratory or clinical settings.

Applications

Protection in this wavelength range is essential in industries and research areas such as:

• Medical and dental diode lasers

• Laser alignment and surveying tools

• Telecommunications and optical fibre research

• Industrial cutting, welding, and engraving with near-IR lasers

• University and laboratory experiments involving diode and semiconductor lasers