The amount of downforce created by the wings or spoilers on a car is dependent primarily on two things: 1  The shape, including surface area, aspect ratio and cross-section of the device, and. 2  The device's orientation (or angle of attack).
Without a doubt, Oakley did their homework on the Prizm line. Per Drew Wallace, Product Manager with Oakley Defense, Oakley SI developed the Prizm lenses (both the TR22 and the TR45) in conjunction with the Army Marksmanship Unit, which is a group of people who know what they want and get it.
1 Polycarbonate lenses also provide ultraviolet protection. 2  Trivex lenses. 3  These lenses are made from a newer plastic with similar characteristics of polycarbonate lenses. 4  They are lightweight, thin, and impact-resistant and may result in better vision correction than the polycarbonate lenses for some people.