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.
Which lens options are right for you. There are many types of lenses which offer different levels of performance; from the latest technological developments with tailor-made options for the best possible vision, to great value ranges suitable for all budgets-available in both single vision and varifocal.here are many types of lenses which offer different levels of performance; from the latest technological developments with tailor-made options for the best possible vision, to great value ranges suitable for all budgets-available in both single vision and varifocal.