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ttyu1004
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تاریخ ثبت نام: ۱۴۰۰/۶/۳
تاریخ تولد: تعیین نشده
زمان محلی: 2021/09/20 , 08:12 AM
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Bio: What Your Sunglasses Say About You
Sunglasses are a real character builder. Or at least they play a large roll in the character that you play to others. They’re front and center and they can literally change the shape of your face. So before you buy your next pair of shades, think about what you might be saying to the world.

With that said, here are some popular sunglass shapes along with what what they might be saying about your style.

Sunglasses are one of the world's most ubiquitous fashion accessory, but also play an important part in protecting our eyes from harmful UV rays. The earliest known use of glasses to protect eyes from the sun was the Inuit use of “sun goggles” to shield their eyes from the blinding glare of light reflected off the snow. These were made from carved driftwood, bone, walrus ivory, or caribou antler that formed a strip worn across the eye area, with thin slits that the wearer could see through. The goggles were cut so that they fit tightly to the face, and often soot or gunpowder was rubbed on the outside to absorb the light and further cut down on glare. The use of these goggles dates back to around 2,000 years ago, and as a bonus, even improved the wearers vision as the narrow slits helped focus eyesight.

unglasses protect your eyes from harmful ultraviolet (UV) rays, reduce eyestrain in bright conditions and protect you from flying debris and other hazards. Finding the right pair is key to your comfort, whether you’re driving to work or climbing a mountain.

All acetate sunglasses offered at REI block 100% of ultraviolet light. UV protection information should be printed on the hangtag or price sticker of any sunglasses you buy, no matter where you buy them. If it isn't, find a different pair.

Types of Sunglasses
Casual sunglasses: Best for everyday use and basic recreational activities, casual sunglasses do an excellent job of shading your eyes from the sun while you drive to work and walk through town. Casual sunglasses are typically not designed to handle the intensity of action sports.

Sport sunglasses: Designed for activities such as running, hiking and biking, sport sunglasses offer light weight and an excellent fit for fast-paced adventures. High-end frame and lens materials are more impact-resistant and flexible than casual sunglasses. Sport sunglasses also typically feature grippy nose pads and temple ends, a feature that helps keep the frames in place even when you're sweating. Some sport sunglasses include interchangeable lenses so you can make adjustments for different light conditions.

Glacier glasses: Glacier glasses are special sunglasses designed specifically to protect your eyes from the intense light at high altitudes and sunlight reflecting off snow. They often feature wrap-around extensions to block light from entering at the sides.

Sunglass Lens Features
Polarized lenses: Polarized lenses substantially reduce glare. Polarization is a great feature if you enjoy water sports or are especially sensitive to glare.

In some instances, polarized lenses react with the tints in windshields, creating blind spots and diminishing the visibility of LCD readouts. If this occurs, consider mirrored lenses as a glare-reducing alternative.

Photochromic lenses: Photochromic lenses automatically adjust to changing light intensities and conditions. These lenses actually get darker on bright days, and lighter when conditions get darker.

A couple of caveats: The photochromic process takes longer to work in cold conditions, and it doesn't work at all when driving a car because UVB rays do not penetrate your windshield.

Interchangeable lenses: Some sunglass styles come with interchangeable (removable) lenses of different colors. These multi-lens systems allow you to tailor your eye protection to your activities and conditions. Consider this option if you need reliable performance in a wide variety of situations.

The benefits of metal sunglasses
If you prefer to keep it lightweight and classic, you can’t go wrong with sunglasses with metal frames.

Metal frames are usually relatively thin, making them a great lightweight sunglasses option for everyday wear. Metal is also durable and resists corrosion. Metal frames also usually are outfitted with nose pads to help keep your sunglasses in place and prevent slippage (for a more comfortable fit).

Metal-frame sunglasses are typically made of aluminum, nickel, titanium or stainless steel, and come in a variety of styles, from iconic aviators to classic round frames.

When shopping for higher-end metal-frame sunglasses, consider aluminum and titanium. They’re both flexible, strong and corrosion resistant. Titanium sunglasses also are hypoallergenic, making titanium a great choice for those with skin sensitivities and allergies.

Metal sunglasses made from beryllium and stainless steel are also popular choices, due to their strength and resistance to corrosion. In fact, beryllium is especially appropriate for those who spend a lot of time in or around salt water and other abrasive environments.

Do you play sports or wear performance sunglasses? Look for metal sunglasses made with monel or flexon. Both are exceptionally malleable, and flexon will return to its original shape after twisting or bending.