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Weather radar colors. Top: Normal colors as seen without glasses. Bottom: Simulated view through PerriQuest Laser Defense Eyewear. (The manufacturer did not specify if this simulates the Night or Day version.)

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June 2018 guidance from an aviation advisory committee, SAE Aerospace Recommended Practice 6378, discusses Laser Glare Protection. An appendix lists LGP products known to the SAE G10-OL committee at time of writing the document.“Eyewear Helps Thwart Laser-Pointer Attacks”, by Jason Palidwar, Iridian Spectral Technologies. Reprinted from Photonics Spectra, January 2014.The Air Force Aircrew Laser Eye Protection (ALEP) program. This unclassified document describes many of the characteristics of anti-laser glasses used by the Air Force. It does not list specific wavelengths or protection factors (e.g., optical density) as these are classified. From the abstract: “ It describes design criteria used in the development of laser protective devices, operational considerations, training, fit, inspection, maintenance and immediate response procedures to follow after suspected laser exposure. Procedures outlined in this document apply to all Air Force personnel….” Block 0, 0+ and 1 versions are discussed.ALEP Program Status: Below is the bottom half of slide 4, in an Air Force briefing about Aircrew Performance Programs. This has more information about ALEP Block 2.

ST Laserstrike has two levels of protection available:Type 1 – General laser flash protection (suitable for most operations)Allow normal operation with laser pointers <200mW* Provide eye damage protection from sources up to 2W, based on pilot being >200m from source & typical beam divergence. To comply with minimum EN207 DIR LB2 (400-445nm blue, 532nm green, 808-1064nm Infrared). Provide approx. 40% Visible Light TransmissionType 2 – High powered laser attack protection (suitable for extreme environments)Allow normal operation with laser pointers <2W, and eye damage protection from sources up to 20W, based on pilot being >200m from source & typical beam divergence. To comply with minimum EN207 DIR LB3 (400-445nm blue, 532nm green, 808-1064nm Infrared). Provide approx. 30% Visible Light Transmission

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As of July 2011, there are three models. PBG reduces green by 99.5%, blue by 97%, has 49% transmittance for low-light conditions, and has “good” instrument panel visibility. AG2 reduces green by 99%, has 53% transmittance for low-light conditions, and has “excellent” instrument panel visibility. BGR is for full sun conditions; it reduces green, blue and red by 90-97%, with 29% transmittance for full sun conditions.

Simulated use of general-purpose green-blocking glasses,where 50% of broadband green light is blocked.Note significant change in instrument panel colors.Obviously, these should not be used for anti-laser purposes.

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For each frame style, there are three different lens types available:Green Beam Reduction: 190-400 nm (UV), OD 5+. 532 nm (green), OD 2.5+. Visible light transmission: 33%. Orange/Peach lens color.Blue/Green Beam Reduction: 190-400 nm (UV), OD 5+. 445-450 nm (blue), OD 2+. 532 nm (green), OD 2.5+. Visible light transmission: 43%. Orange/Peach lens color.Blue/Green/Red Beam Reduction: 190-400 nm (UV), OD 5+. 440-470 nm (blue), OD 1.5+. 532 nm (green), OD 1.5+. 633-640 nm (red), OD 1.2+. Visible light transmission: 23.3%. Green lens color.The cost is $150 in single quantities.

Revision’s latest laser lens—the LazrBloc GF-8—is a cross-functional aviation, law enforcement, and military solution for in-field vision disruption, disorientation, and impairment caused by green laser energy. GF-8 lenses block up to 99.9% of 532 nm green laser energy, and stop 99% of 808 nm near-infrared radiation, a hazardous, invisible component of green lasers. GF-8 laser lenses allow greater VLT and color recognition, are treated with Revision’s OcuMax© Plus anti-fog coating, provide 100% UV-A-B-C protection, and are made from high-impact polycarbonate that exceeds military ballistic impact requirements. GF-8 comes in various kits, and is priced at $199.99. Revision’s LazrBloc lenses are interchangeable, situation–adaptable LEP solutions that can be tailored and customized to end-user needs and requirements. Revision provides ballistic LEP, in a variety of configurations and form factors, to military forces worldwide. NOTE FOR POLICE/PROTEST USE: A July 10 2020 sole-source contract saw the Federal Protection Service buying Stingerhawk FT-2 Laser Protective Eyewear from Revision Military. The expected cost was $125 per pair, for 1,000 pairs of glasses. The contract went on to justify the sole-source: "While several manufacturers make lenses that defeat the effects of these lasers specifically designed for Law Enforcement and aviators; the Revision FT-2 Laser Protective Eyewear model provides a broader laser protection to include protection from Green, Blue and Violet laser light. The FT-2 has adequate visible light transmission and FPS has also had reports of violet laser use during these demonstrations creating the need for the broader protection. Revision Hawk was the provider of the rest of FPS head gear; therefore, the Revision Hawk Stingerhawk FT-2 Eyewear is made to to works with the helmets that FPS utilizes. The Stingerhawk FT-2 Laser Protective Eyewear provide the needed protection for the laser wavelength of concern, the feature wrap around protection and ballistic protection required for law enforcement operations. Market Research shows that there are no distributors of the lens; they are only available from the manufacturer."

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Simulated use of Laser Glare Protection glasses. The laser location is still visible, but glare is significantly reduced. Note that green cockpit lights are not adversely affected -- they can still be seen.

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Sperian has four models of Laser-Gard; two for daylight use (bronze-colored sunglasses that also have laser protection), and two for nighttime use (salmon-colored glasses with maximum light transmission except for the laser wavelength). Within each group, there is green-only protection, and green-and-red protection. The cost for the nighttime, green-only Laser-Gard glasses we examined is $99. One U.S. source is Rockwell Laser Industries.

They began work on the “laser dazzle visor” in 2014 and hope to start selling to military, airline suppliers and emergency services in 2018. A March 2017 article in the Express gives some additional information.

This chart from PerriQuest shows how colors shift when seen through the lens. For example, the bright green at a*=-70, b*=+80 shifts to a more yellow green; reds shift to orange. But because the shifted colors remain visible and stay within the same general hue, the manufacturer says this “eliminates the possibility of color confusion.”

The eyewear is said to have an Optical Density between 2 and 5, meaning that it will attenuate the amount of 532nm light reaching eyes by 100 to 100,000 times. The frame is wider at top, sides and bottom, to block light coming from directions other than the front.MTI originally developed the holographic laser-reflecting technology for use in windscreens. The goal was to protect pilots without the need for eyewear. However, windscreen modifications require a slow, multi-year process of obtaining governmental and airline approval. In addition, the cost to modify windscreens is much higher than the cost of one or two pairs of eyewear. So eyewear was a natural choice for the first commercially available laser protection product from MTI. According to its metaAIR website, the company may also produce glare shields using the same technology.As of late February 2019, MTI is taking pre-orders for its eyewear, distributed by Satair, which will be available "spring 2019."