Laser Veil

Introduction

Laser Veil is a liquid coating that is commonly applied to vehicle headlight lenses and other highly reflective areas in the front of the vehicle in order to prevent the reflection of LIDAR transmissions.  The product was developed and patented in the United States in the year 2000 to counter the increasing trend of speed enforcement technologies using LIDAR.  As the product improved, it was reviewed by Motor Trend and Speed Measurement Laboratories in 2005, and shortly after that time, Laser Veil began to attract attention as solid and reliable product.

With Laser Veil applied to a vehicle’s headlights, data from testing has shown significant LIDAR acquisition readings by as much as 50%.  As the product was developed, the manufacturer tested 5 vehicles with different levels of absorption agents, and in those five trials, one can clearly see the effect Laser Veil has at reducing the amount of LIDAR reflection back to the equipment operator.

The developer, “Veil Guy,” is a member of our forum, and we are glad to have him here to provide support for the product.  Laser Veil G4 is the current version of the product available through select retailers.  As of 20 March 2014, a new version of G5 is under development.

 

Testing: Past and Present

Past

In the early trials of Laser Veil, the manufacturer discovered that the product proved to significantly reduce a laser gun’s ability to record a vehicle’s speed at distances where most drivers would be able reduce their speed to a safe level.  The table below shows actual test results from the manufacturer before it was released for production.

Automobile Average Detection Distance – No Coating Average Speed of Auto Upon Detection – No Coating Average Detection Distance – with Laser Veil Average Speed of Auto Upon Detection – with Laser Veil
Car A 1235′ 32.0 mph 762′ 35.86 mph
Car A 1108′ 77.75 mph 677′ 68.0 mph
Car B 1228′ 30.0 mph 624.2′ 37.4 mph
Car B’ 586.25′ 33.75 mph 513.5′ 43.0 mph
Car C 1497′ 47.5 mph 1074.5′ 39.5 mph

 

Present – 2014

In April 2014, Veil Guy did a test of Laser Veil G4 applied to his car  against a series of newer guns than those used years ago. Some of the new guns used in this test include those that operate based on a variable pulse rate.  These newer types of guns, as shown in bold purple in the table, are designed to confuse laser jammers.  Due to this, adding Laser Veil to a vehicle is now being looked at more closely in terms of regular usage for use in combination with laser jammers.  Testing against these new types of guns demonstrated that the product, after years of improvement, is capable of absorbing LIDAR at great distances and defeating all laser guns, thus preventing recorded measurements by the laser gun’s operator.

In the test below, a vehicle without Laser Veil applied gets its speed recorded at 3,900 feet.  Using this as a baseline distance, Veil Guy uses his car with Laser Veil applied and the following distances were recorded when the laser gun was finally able to get a reading.

LIDAR Gun PHL COM DHL
ProLaser III 804′ 521′ 838′
ProLaser IV 295′ 465′ 694′
Prolite + 498′ 792′ 823′
TruSpeed 1 537′ 834′ 1011′
TruSpeed 2 894′ 773′ 844′
TruSpeed S 145′ 436′ 547′
LTI LRB Ultralyte 20/20 693′ 1153′ 653′
Stalker XLR 947′ Not Tested Not Tested
Stalker 1 487′* NT NT
Stalker 2 2316′** NT NT
Digital Ally Laser Ally (DALA) 865′ 905′ NT

* Interestingly on both of the stalkers, the LIDAR tone was completely silent until near-PT values.
** This PT occurred on an non-Veiled fog-light. This is a great example of how a real-world unprotected prime area of a vehicle can react to LIDAR without Veil.

How It Works

Laser Veil works by absorbing the 904nm common infrared red (IR) band of LIDAR guns and reducing the reflection of LIDAR from the applied surface.  The effective coating on the applied surface is approximately 0.25 mils and 2 mils.  With this level of coating, Laser Veil is capable of absorbing more than 99% of IR radiation in the band of 885 to 920nm incident upon the coating.

In the following diagram, the y-axis shows the level of IR absorption from the coating and the x-axis shows the IR band.  Note how the level of absorption is highest in the 900nm range.

Graph depicting absorption levels of IR (y-axis) with respect to IR band (x-axis)

Graph depicting absorption levels of IR (y-axis) with respect to IR band (x-axis)

 

The current version of Laser Veil G4 provides users a very high degree of near IR absorption in the 904nm range, and a high degree of visible light transmittance in the range of 75% – 85%.  In addition, due to other chemicals that are part of Laser Veil, the application is very weather resistant.

 

Application

Laser Veil is applied to the following common areas of vehicles with the included foam-brush applicators:

  • Headlight lenses
  • Chrome (plastic) grilles
  • License plate cover

The package contents of an order of Laser Veil includes the following:

Laser Veil contents

Laser Veil contents

  • 5.5 oz. of Laser Veil (treats approximately 10 vehicles)

 

  • 3 Foam Brushes – (1″, 2″, and 3″ wide)

 

  • 1 Nylon Brush

 

  • Reading material

 

In this video, Veil Guy applies Laser Veil to a vehicle’s headlights.  Note the neutral grey appearance of the product when it has completely dried:

 

Below is a list of common tasks to consider when applying Laser Veil to headlight lenses and license plate covers:

  • Before applying Laser Veil, shake the product extremely well, as if it were paint
  • Apply the product in an open area like a garage where wind is not blowing dust that will stick to Laser Veil fresh coating
  • Ensure the surface is completely clean of any waxes
  • Practice applying the product on a test surface – Laser Veil applies just like paint; Laser Veil can be used in a typical model hobby air brush kit for best results
  • Mask surrounding vehicle areas, since Laser Veil can stain
  • Allow 24 hours for Laser Veil to cure, and keep any condensation away from the applied area as well

 

Laser Veil In Action

The following videos show Laser Veil effectiveness by itself and also with the combined efforts of LIDAR active countermeasures (jammers).

Laser Veil against typical LIDAR gun

Laser Veil jamming laser gun (no jammer attached)

Laser Veil viewed with IR camera showing reflectivity loss of light on vehicle headlight areas

 

 

Summary

Overall, Laser Veil is an effective LIDAR countermeasure when applied to highly reflective areas like headlight lenses, license plate covers, and chromed grilles.  The mechanics behind how it works is through the use of IR absorbing materials that are suspended in a carrier solvent. When the carrier solvent evaporates over a period of 24 hours, the residual Laser Veil coats the surface in a neutral gray color that is also weather resistant.  The amount of light transmittance from the vehicle’s lights is unimpeded, for the most part, and is safe to use.  Although the product is difficult to remove once applied, it is not permanent.  The graph that was shown above in the introduction demonstrated the product’s effectiveness against a good range of common LIDAR sources used in speed enforcement, and the video footage from Veil Guy and our own testing showed Laser Veil promises results.

 

Manufacturer’s website: http://www.laserveil.com

Discussion area on our forum: rdforum.org Laser Veil