Autumn Gold™ lenses offer the ultimate in comfortable outdoor / indoor vision. The lenses are photochromic, they automatically change (darken and lighten by degree, depending on exposure to sunlight). When fully darkened they are an excellent sunglass with a pleasing brown tint. When fully lightened they have a medium golden or yellow tint.
Autumn Gold™ lenses provide the unique feature of contrast enhancement, which makes fuzzy images look crisp and clear in cloudy, foggy or very bright environments. They absorb potentially harmful ultra violet rays, are excellent blue light blockers and are made of the most durable and scratch resistant lens material – Glass. Autumn Gold™ lenses will fit the frame and lens style of choice.
Professional outdoor sports enthusiasts and outdoor workers prefer Autumn Gold™ lenses because they improve visual acuity and help reduce eyestrain and fatigue. Autumn Gold™ lenses are specifically recommended for target and skeet shooters, archers, hunters, skiers and fishermen.
Over-the-road and delivery drivers benefit from visual comfort, acuity and the “changeable” feature of the lens. Inside a vehicle, Autumn Gold™ will not fully darken because sunlight is partially filtered by the windshield and cab, however they will continue to offer light-tint sunglass comfort.
The Autumn Gold™ tint will not peel or scratch because it is not a coating. The scratch resistant photochromic glass is a borosilicate composition containing light sensitive, fatigue-proof silver halide micro crystals. The lenses may be anti-reflection or color coated, although the photochromic performance of the lens will diminish by about 6%. They should be tempered, tested and processed like Corning's Photobrown ExtraÒ lenses.
Autumn Gold™ lenses are available for every individual in Finished-Plano, semi-finished Single Vision, Freedom 5 Progressive, Flat-tops, Round Segs and Trifocals of all sizes. They are professionally prescribed and dispensed. Most ophthalmic laboratories have fast, easy access to the product.
Corning Photobrown Extra' with Autumn Gold™ treatment.
Density: 2.41 gms/cc, which is 5% lighter than white crown glass.
Refractive Index is 1.523; Abbe Value of 57.0; When darkened blocks 85% of blue light.
Darkened transmittance (tempered 2.0mm center thickness with 15 minutes direct sunlight exposure)
is 17% at 32°F; 25% at 77°F for the non-polarized lens.
