Wiley X Laser Lenses

Wiley X steps up to address Military personnel and Law Enforcement’s need for a defense against flash blinding, the tactic of using lasers to obstruct an officer’s vision. Military personnel and Law Enforcement officers face disorientation optical distortion and short- and long-term eye damage when encountering multiple laser assaults. Created for defense, our ballistically-rated Laser Lenses are infused with protective dyes to refract various laser wavelengths.

Wiley X Technology

Laser protection technology provides multiple solutions to achieve the necessary protection. There are three main elements that needs to be considered: Nanometers (Nm), Optical Density (OD) and Visual Light Transmittance (VLT).

Nanometers (Nm)

The Nm defines which type/color of laser (wavelength) the lens will protect again. For example, 532 Nm is the predominant of the green laser.

Optical Density (OD)

The OD defines the level of protection against the given Nm. If a laser pointer has a safety distance to the naked eye at for example 100 meters, you are safe at 10 meters when wearing a laser eyewear protection with an OD of 1. With an OD of 2, you are safe at 1 meter etc. Visual Light Transmittance (VLT): The VLT describes how much light is transmitted through the lens. The higher the VLT, the more light will be transmitted through the lens, and the brighter the lens will be perceived. The VLT is broken down in Photopic and Scotopic Transmittance.

The Photopic value indicates the vision for colour perception under well-lit conditions (normal daylight), which functions primarily due to cones in the eye. The Scotopic value indicates the vision in very low light (night adjusted eye), which functions primarily due to rods in the eye.

The selected Nm in combination with the level of OD affects the VLT. The more different Nm there is combined in a lens, the lower the VLT will become. The same goes for the OD. The higher the OD, the darker the lens. So, if you want to create “the perfect laser protection lens” protecting against all Nm the lens will become very dark – close to useless. Therefore, it is important to do a proper risk and hazard assessment to select the lens combination you need. Wiley X can do any combination you may require. Please reach out to us for a quotation based on your needs.

Having the complexity of the technology in mind Wiley X have put different standard combinations of laser protection lenses together. The setups combined covers the full spectrum of the main Nm there is used in the branches of Military and Law Enforcement.

The Importance Of Scotopic Transmittance

The Scotopic value is very important, especially when talking lenses for use during night-time operations. As described above and illustrated to the left, the Scotopic value indicates the visibility in very low light (night adjusted eye). If the Scotopic transmission of a laser lens or any lens for that matter is too low (app. below 15%), the result would be similar to using a classic regular Grey lens at night-time. The use of it will be very limited, as the rods capabilities to function will be significantly decreased.


Protection Against Green Lasers
Red tint
Nm 532 nm
Laser green
Optical density od5+
Visual light transmittance 49%
Photopic tranmittance 38%
Scotopic tranmittance 27%

Protection Against Red Lasers
Blue tint
Nm 660nm
Laser red
Optical density od4+
Visual light transmittance 36%
Photopic tranmittance 47%
Scotopic tranmittance 75%

Protection Against IR Lasers
Green tint
Nm 800+1064 nm
Laser near infrared
Optical density od5+
Visual light transmittance 39%
Photopic tranmittance 38%
Scotopic tranmittance 26%

Protection Against IR Lasers
Light grey tint
Nm 1064 nm
Laser near infrared
Optical density od5+
Visual light transmittance 55%
Photopic tranmittance 55%
Scotopic tranmittance 53%