Peak Vision Dual Zone Golf Sunglasses: ST7.15 Aztec Bronze*

PeakVision

ST7.15 Aztec Bronze

ST7 Golf Sunglass - Aztex BronzeBrushed Aluminum / Magnesium Alloy frame features PeakVision's Dual Zone Amber NXT unbreakable lenses that deliver perfect light management for for both the sky and green grass terrain with amazing optical glass clarity.The Peak Vision Chip's contemporary styling is polished and sleek with superb wrap for ultimate comfort and maximum eye protection. Fits Med to Large headsPeakVision Sports is a leader in the product development of technology-driven sunglass eyewear to enhance performance for outdoor activity. For sports like Baseball and Golf, where clarity and UV protection is crucial, PeakVision Sports Performance Eyewear has been recommended by both sports professionals and amateurs on the PGA tour and in Major League Baseball. PeakVision Sports makes use of its patented Dual-Zone technology, offering lens filters that enhance visualization, while providing the ultimate in UV eye protection.

Dual Zone PeakVision Sports incorporates two different technologies into a noticeably unique and differentiated lens by integrating multiple color management filters into a sport lens made from a revolutionary new optical polymer. PeakVision Sports developed the patented Dual-Zone filtration that utilizes different filters in two zones of a sunglass lens. In the upper zone, neutral-density gray filtration eliminates overhead glare from the sun and enhances distance perception. Through precise color and light management technology, PeakVision Sport's upper gray zone gradually transitions into an amber lower zone which enhances a golfer's ability to read the topography of the green. For skiers, the upper gray zone transitions into a vermillion lower zone. PerformanceTraditional sunglasses marketed in the performance eyewear category are faced with a choice of which lighting condition to sub-optimize. No single lens color can simultaneously address the range of light conditions encountered in a typical day outside. Protection from glare caused by a bright sky, sunny or overcast, requires a darker lens filter. However, a dark filter dramatically reduces the visual cues from the surface environment. A typical green grass surface reflects only 2% of the ambient light.

Other sunglass manufacturers address this problem with interchangeable lenses based on weather and lighting conditions. Unfortunately, this is not an effective solution as most athletes are not willing to change lenses in the middle of an activity. Golfers are particularly impacted by the lens filter selected. While a gray neutral-density lens reduces the glare from overhead sun (or an overcast day as well), it filters out much of the visual information needed to see the contours of a green putting surface. An amber lens enhances a golfer's ability to visualize the variations on the green, however amber lenses tend to flatten distance perception and do little to protect a golfer's eyes from bright lightEye Strain Our patented

Dual-Zone lens addresses the number one challenge facing sunglass wearers - no single color filter can simultaneously address the extremes of light conditions always encountered with a bright sky and darker terrain. Our lens balances the light to reduce the workload on the iris (which manages the pupil). By reducing the range in which the iris must operate, the eye is less fatigued and more stable. The enhanced stability delivers better vision over the course of a day. Dr. Burton Worrell, a UC Berkeley Professor and the eye doctor for Major League Baseball Umpires, evaluated our sunglasses and substantiated our claims Distortion In addition to the challenges associated with single filter lens, most sunglass lenses today are injection-molded polycarbonate (plastic), a 40 year old manufacturing technology. This technology, while producing light weight and inexpensive lenses, also produces lenses with very poor optical clarity. The distortion created during injection molding is a visible and pervasive artifact of all current performance sunglass lenses and also interferes with the ability to visualize contours and estimate distances. The graphic to the right shows a pair of our competitor's sunglasses (bottom) and PeakVision Sports Performance Eyewear through an optics viewer that displays optical distortion as a rainbow effect.

To address the distortion in injection-molded polycarbonate lenses, PeakVision Sports utilizes a new material called NXT. This new material provides clarity equivalent to optical glass at less than 40% of the weight, while offering scratch and shatter resistance far superior to traditional polycarbonate lenses. Additionally, NXT offers 100% UV400 protection!