The transition from a normal Patrol car to one that is armored is a very delicate transition. The officer must be comfortable in the car, with his ability to drive the vehicle and clearly see traffic at pursuits speeds. This requires glass that has a neutral perspective, and allows you to see traffic uneffected.

Many glass manufactures meet the standards ballistically, however optically the glass is not uniform. A standard of vision has been set to assure that visually the glass does not magnify objects and the driver feels comfortable in the judgement of traffic and safe driving the vehicle.

ISBI recognizes this and our glass is one of the few windshields that is all Glass to eliminate the shift that a poly mix creates. This is important for two reasons, first the prism effect destroys the image and duplicates headlights at night, the layers expand at different rates and create lamination issues in a very short time. Lamination issues destroy a windshield and blocks your vision.

ISBI’s windshields are a design of multiple layers of glass. This design helps in many ways for a windshield that is superior design for better law enforcement use. Using an all glass design is optically superior and will not cause delimitation and provide a windshield your officer is comfortable driving.

Prism effect: The bottom line shows the effect of a prism on a beam by shifting the beam.

Notice the Beam passes then is shifted, This has an effect on light transmission and the way an officer sees traffic and at night lights via the Windshield.

ISBI all glass formula is to help assure that optically the officer feels comfortable driving his Patrol Car and in traffic can judge distance and read traffic without confusion.

ISBI’s long term goal for our glass formula is a Windshield that last for years and minimizes the distortion created by years of heat cycles on the glass. 100%.