Original Vintage SunTiger Clip On Flip Up Sunglasses Patented Avian Orange Lens Some features: Open box unused, missing Wrap-Around Temples and Neck Cord.Metal frameAvian lensPolarizedUV Protection CoatingLens width: 60 millimetersLens height: 42 millimetersBridge: 15 millimeters Product descriptionThese original SunTiger Sunglasses Clip On model are a rare find!!!! Because SunTiger Sunglasses (now known as Eagle Eyes) give them the edge in safety and performance. They feature patented triple lens sight saver technology developed by NASA scientists! They are the most protective; brightest sunglasses in the world. The SunTiger Avian lenses utilize technology based on how eagles find their prey from great distances.They block 99% of all dangerous blue, violet, and ultraviolet light, giving you the very best protection against problems that can be caused by sun and glare: headaches, eye fatigue, snow blindness, and more serious degenerative conditions.Ordinary sunglasses darken and reduce visibly. SunTiger make everything appear clearer and brighter even in haze, rain and snow. Yet your eyes are comfortable. According to Peter Isler, America's Cup Champion, SunTiger Sunglasses improve visual clarity, they are lightweight, comfortable to wear and they look great. Lenses made in the USA. StoryWhile working to apply their NASA space research to these terrestrial applications, Stephens and Miller became engrossed with previously discovered research showing evidence that the eyes of hawks, eagles, and other birds of prey contain unique oil droplets that actually protect them from intensely radiated light rays (blue, violet, ultraviolet) while allowing vision-enhancing light rays (red, orange, green) to pass through. These oil droplets absorb short wavelength light rays which, in turn, reduce glare and provide heightened color contrast and definition for optimal visual acuity. Accordingly, birds of prey possess the ability to distinguish their targeted prey in natural surroundings and from great distances.Pairing the findings from their initial studies with what they learned from the bird studies, the scientists devised a methodology to incorporate the light-filtering/vision-enhancing dual-action benefits into a filtering system, using light-filtering dyes and tiny particles of zinc oxide. (Zinc oxide, which absorbs ultraviolet light, is also found in sunscreen lotions that protect the skin from sunburn.)Stephens and Miller turned their attention to the related matter of protective glasses. They used computer analysis to design sunglasses for various light environments, including mountain, desert, and fluorescent-lighted office settings. What resulted was a spinoff of a spinoff: the SunTiger lens for every natural and artificial environment. SunTiger, Inc., of Calabasas, California, was formed to market a full line of sunglasses that promised 100-percent elimination of harmful wavelengths and a sharp, crisp viewing perspective. Over the past few years, the company, now doing business as Eagle Eyes Optics, has extended its product line to over 40 styles of sunglasses that appeal to both genders, no matter the age. Eagle Eyes® is a registered trademark of SunTiger, Inc. Listing and template services provided by inkFrog