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Sunglasses. So many styles, so many brands! Find the sunglasses that are uniquely you in our incredible collection of authentic designer shades.

The first sunglasses used in a Moon landing were the original pilot sunglasses produced by American Optical. Fashion trends can be another reason for wearing sunglasses, particularly designer sunglasses from high-end fashion brands. Oakley , for example, has straight resting hooks on all their glasses, preferring to call them "earstems".

SHADES. Shades can mean to things. It can either mean a shade spot, like under a tree, it it can refer to sunglasses. Sometimes to say sunglasses in a cool way people say shades, specs or sunnies. Sunglasses. Normal glasses/eyewear that is fitted with lenses produced specifically to protect your eyes from the sun (UV light).
SHADES. Shades can mean to things. It can either mean a shade spot, like under a tree, it it can refer to sunglasses. Sometimes to say sunglasses in a cool way people say shades, specs or sunnies. Sunglasses. Normal glasses/eyewear that is fitted with lenses produced specifically to protect your eyes from the sun (UV light).
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SHADES. Shades can mean to things. It can either mean a shade spot, like under a tree, it it can refer to sunglasses. Sometimes to say sunglasses in a cool way people say shades, specs or sunnies. Sunglasses. Normal glasses/eyewear that is fitted with lenses produced specifically to protect your eyes from the sun (UV light).

Sunglasses. So many styles, so many brands! Find the sunglasses that are uniquely you in our incredible collection of authentic designer shades.

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Look for items sold by Walmart. Mountain climbing or traveling across glaciers or snowfields requires above-average eye protection, because sunlight including ultraviolet radiation is more intense in higher altitudes, and snow and ice reflect additional light.

Popular glasses for this use are a type called glacier glasses or glacier goggles. They typically have very dark round lenses and leather blinders at the sides, which protect the eyes by blocking the Sun's rays around the edges of the lenses. Special shaded visors were once allowed in American football ; Jim McMahon , quarterback for the Chicago Bears and San Diego Chargers , famously used a sun visor during his professional football career due to a childhood eye injury and almost always wears dark sunglasses when not wearing a football helmet.

Darkened visors now require a doctor's prescription at most levels of the game, mainly because concussion protocol requires officials to look a player in the eye, something made difficult by tinted visors.

Special protection is required for space travel because the sunlight is far more intense and harmful than on Earth, where it is always filtered through the atmosphere. Sun protection is needed against much higher UV radiation and even against harmful infrared radiation, both within and outside the spacecraft. Within the spacecraft, astronauts wear sunglasses with darker lenses and a thin protective gold coating.

During space walks , the visor of the astronauts' helmets, which also has a thin gold coating for extra protection, functions as strong sunglasses. They must be flexible and durable, and must fit firmly in zero-gravity.

Reliable fit is particularly important when wearing corrective glasses underneath tight helmets and in space suits: Frames and glasses must be designed so that small pieces of the glasses such as screws and glass particles cannot become dislodged, then float and be inhaled.

The first sunglasses used in a Moon landing were the original pilot sunglasses produced by American Optical. In they were used aboard the Eagle , the lunar landing module of Apollo 11 , the first manned mission to land on the Moon.

Stephens and Charles G. Miller at the Jet Propulsion Laboratory JPL resulted in special lenses that protected against the light in space and during laser and welding work. The lenses used colored dyes and small particles of zinc oxide , which absorbs ultraviolet light and is also used in sunscreen lotions. The research was later broadened to further terrestrial applications, e.

The frame is very light at 1. Buzz Aldrin stows his sunglasses before the Moon landing. Helmet visor protecting Aldrin 's eyes on the Moon.

The color of the lens can vary depending on style, fashion, and purpose, but for general use, red, grey, green, or brown are recommended to avoid or minimize color distortion , which could affect safety when, for instance, driving a car or a school bus. With the introduction of office computing , ergonomists may recommend mildly tinted glasses for use by display operators, in order to increase contrast. While some blue blocking sunglasses see above are produced as regular sunglasses for exposure to bright sunlight, others—especially for macular degeneration patients—do not block light or other colors in order to function well in regular daylight and even dim sunlight.

Some models have polarized lenses, made of Polaroid polarized plastic sheeting, to reduce glare caused by light reflected from non-metallic surfaces such as water see Brewster's angle for how this works as well as by polarized diffuse sky radiation skylight. This can be especially useful to see beneath the surface of the water when fishing. A mirrored coating can be applied to the lens. This mirrored coating deflects some of the light when it hits the lens so that it is not transmitted through the lens, making it useful in bright conditions; however, it does not necessarily reflect UV radiation as well.

Mirrored coatings can be made any color by the manufacturer for styling and fashion purposes. The color of the mirrored surface is irrelevant to the color of the lens. For example, a gray lens can have a blue mirror coating, and a brown lens can have a silver coating. Sunglasses of this type are sometimes called mirrorshades. A mirror coating does not get hot in sunlight and it prevents scattering of rays in the lens bulk. Sunglass lenses are made of either glass , plastic , or SR Plastic lenses are typically made from acrylic , polycarbonate , CR or polyurethane.

Glass lenses have the best optical clarity and scratch resistance, but are heavier than plastic lenses. They can also shatter or break on impact. Plastic lenses are lighter and shatter-resistant, but are more prone to scratching.

Polycarbonate plastic lenses are the lightest, and are also almost shatterproof, making them good for impact protection. CR is the most common plastic lens, due to low weight, high scratch resistance, and low transparency for ultraviolet and infrared radiation.

SR is a proprietary material that was introduced by Kaenon Polarized in Kaenon's lens formulation was the first non-polycarbonate material to pass the high-mass impact ANSI Z.

Additionally, it was the first to combine this passing score with the highest marks for lens clarity. Jerry Garcia's sunglasses had a polykrypton-C type of lens which was 'cutting edge' in Any of the above features, color, polarization, gradation, mirroring, and materials, can be combined into the lens for a pair of sunglasses. Gradient glasses are darker at the top of the lens where the sky is viewed and transparent at the bottom.

Corrective lenses or glasses can be manufactured with either tinting or darkened to serve as sunglasses. An alternative is to use the corrective glasses with a secondary lenses such as oversize sunglasses that fit over the regular glasses, clip-on lens that are placed in front of the glasses, and flip-up glasses which feature a dark lens that can be flipped up when not in use see below.

Photochromic lenses gradually darken when exposed to ultraviolet light. Frames are generally made of plastic, nylon , a metal or a metal alloy.

Nylon frames are usually used in sports because they are lightweight and flexible. They are able to bend slightly and return to their original shape instead of breaking when pressure is applied to them.

This flex can also help the glasses grip better on the wearer's face. Metal frames are usually more rigid than nylon frames, thus they can be more easily damaged when the wearer participates in sport activities, but this is not to say that they cannot be used for such activities.

Because metal frames are more rigid, some models have spring loaded hinges to help them grip the wearer's face better. The end of the resting hook and the bridge over the nose can be textured or have rubber or plastic material to improve hold. The ends of the resting hook are usually curved so that they wrap around the ear; however, some models have straight resting hooks. Oakley , for example, has straight resting hooks on all their glasses, preferring to call them "earstems".

In recent years, manufacturers have started to use various types of woods to make frames for sunglasses. Materials such as bamboo , ebony , rosewood , pear wood, walnut and zebrawood , are used making them non-toxic and nearly allergy free. The construction of a wooden frame involves laser-cutting from planks of wood. Already cut and ground to a uniform size, a buffing wheel is used to sand and buff every piece separately before they are assembled. The laser-cutouts of wood are then glued together by hand mostly , layer on layer, to produce wooden frames.

Some brands have experimented with recycled wood from objects like skateboards , whiskey barrels and baseball bats. Shwood , for example have experimented with these materials, they have even used recycled newspaper to manufacture frames. Their final look can vary according to the color, type and finishing. With wooden sunglasses, various shades of brown, beige, burgundy or black are most common.

Wooden sunglasses come in various designs and shapes. However, these sunglasses are usually more expensive than the conventional plastic, acetate or metal frames and require more care.

Frames can be made to hold the lenses in several different ways. There are three common styles: Full frame glasses have the frame go all around the lenses. Half frames go around only half the lens; typically the frames attach to the top of the lenses and on the side near the top. Frameless glasses have no frame around the lenses and the ear stems are attached directly to the lenses.

There are two styles of frameless glasses: Some sports-optimized sunglasses have interchangeable lens options. Lenses can be easily removed and swapped for a different lens, usually of a different color. The purpose is to allow the wearer to easily change lenses when light conditions or activities change.

The reasons are that the cost of a set of lenses is less than the cost of a separate pair of glasses, and carrying extra lenses is less bulky than carrying multiple pairs of glasses.

It also allows easy replacement of a set of lenses if they are damaged. The most common type of sunglasses with interchangeable lenses has a single lens or shield that covers both eyes.

Styles that use two lenses also exist, but are less common. Nose bridges provide support between the lens and the face. They also prevent pressure marks caused by the weight of the lens or frame on the cheeks.

People with large noses may need a low nose bridge on their sunglasses. People with medium noses may need a low or medium nose bridge. People with small noses may need sunglasses with high nose bridges to allow clearance.

The following types are not all mutually exclusive; glasses may be in Aviator style with mirrored lenses, for example. Aviator sunglasses feature oversize teardrop-shaped lenses and a thin metal frame. As a fashion statement, aviator sunglasses are often made in mirrored, colored, and wrap-around styles.

The model first gained popularity in the s when Douglas MacArthur was seen sporting a pair at the Pacific Theatre. However, it was in the late s when the frames became widely used with the rise of the hippie counterculture, which preferred large metallic sunglasses.

The brand became an icon of the s, worn by Paul McCartney and Freddie Mercury among others, and was also used as prescription eyeglasses. Aviators' association with disco culture led to a decline in their popularity by Aviators became popular again around , as the hippie movement experienced a brief revival, and was prominently featured in the MTV show Jackass.

Based on the eyeglass design of the same name, browline glasses have hard plastic or horn-rimmed arms and upper portions joined to a wire lower frame. A traditional, conservative style based on midth century design, browlines were adapted into sunglasses form in the s and rapidly became one of the most popular styles; it has ebbed and sprung in popularity in the decades that have followed.

Oversized sunglasses, which were fashionable in the s, are now often used for humorous purposes. They usually come in bright colors with colored lenses and can be purchased cheaply. The singer Elton John sometimes wore oversized sunglasses on stage in the mids as part of his Captain Fantastic act. Since the late s, moderately oversized sunglasses have become a fashion trend.

There are many variations, such as the "Onassis", discussed below, and Dior white sunglasses. Onassis glasses or "Jackie O's" are very large sunglasses worn by women. This style of sunglasses is said to mimic the kind most famously worn by Jacqueline Kennedy Onassis in the s. The glasses continue to be popular with women, and celebrities may use them, ostensibly to hide from paparazzi.

Oversized sunglasses, because of their larger frames and lenses, are useful for individuals who are trying to minimize the apparent size or arch of their nose. Oversized sunglasses also offer more protection from sunburn due to the larger areas of skin they cover, although sunblock should still be used. Shutter shades were invented in the late s, became a fad in the early s and have experienced a revival in the early-to-mid s. Instead of tinted lenses, they decrease sun exposure by means of a set of parallel, horizontal shutters like a small window shutter.

Analogous to Inuit goggles see above , the principle is not to filter light, but to decrease the amount of sun rays falling into the wearer's eyes.

To provide UV protection, shutter shades sometimes use lenses in addition to the shutters; if not, they provide very insufficient protection against ultraviolet radiation and blue light. The original teashade design was made up of medium-sized, perfectly round lenses, supported by pads on the bridge of the nose and a thin wire frame.

When teashades became popular in the late s, they were often elaborated: Lenses were elaborately colored, mirrored, and produced in excessively large sizes, and with the wire earpieces exaggerated. A uniquely colored or darkened glass lens was usually preferred. Modern versions tend to have plastic lenses, as do many other sunglasses.

Teashades are hard to find in shops today; however, they can still be found at many costume Web sites and in some countries. The term has now fallen into disuse, although references can still be found in literature of the time. The Ray-Ban Wayfarer is a mostly plastic-framed design for sunglasses produced by the Ray-Ban company.

Introduced in , the trapezoidal lenses are wider at the top than the bottom inspired by the Browline eyeglasses popular at the time , and were famously worn by James Dean , Roy Orbison , Elvis Presley , Bob Marley , The Beatles and other actors and singers.

The original frames were black; frames in many different colors were later introduced. There is often a silver piece on the corners as well. Since the early s, makers have also developed variants of the model, most notably the Clubmaster model, introduced in , essentially Browlines made of plastic.

In the late s, the rise of New wave music , New Romanticism and the popularity of The Blues Brothers aside from 50s and 60s nostalgia and the anti-disco backlash later on brought the model out of near-retirement, becoming the most sold model between and aided by a lucrative product placement deal, which put it on many movies and TV shows such as The Breakfast Club and Moonlighting.

Wrap-arounds are a style of sunglasses characterized by being strongly curved, to wrap around the face. They may have a single curved semi-circular lens that covers both eyes and much of the same area of the face covered by protective goggles, usually with a minimal plastic frame and single piece of plastic serving as a nosepiece.

Glasses described as wraparound may alternatively have two lenses, but again with a strongly curved frame. The modern variant surged in the mids, heavily based on the then-popular Wayfarer, but adapting it to a more futuristic look.

As a backlash against 80s fashion occurred in the s, wraparounds became one of the favorite frames of the decade. Clip-on glasses are a form of tinted glasses that can be clipped on to eyeglasses for protection from the Sun. An alternative are flip-up glasses. Gradient lenses go from a darker shade at the top to a lighter one at the bottom, so there will be more protection from sunlight the higher one looks through the lens, but the lower one looks through the lens, the less protection is offered.

An advantage is that one can wear them indoors without fear of tripping over something and also allowing the user to see. Wearing sunglasses to nightclubs has become common in recent times, where the gradient lens comes in handy. Gradient lenses may also be advantageous for activities such as flying airplanes and driving automobiles, as they allow the operator a clear view of the instrument panel, low in his line of sight and usually hidden in shadow, while still reducing glare from the view out the windscreen.

The Independent London , has also referred to these style of sunglasses as the Murphy Lens. Gradients should not be confused with bifocals and progressive lenses. Flip-up sunglasses add the benefits of sunglasses to corrective eyeglasses, allowing the wearer to flip up the tinted lenses for indoor use. An alternative are clip-on glasses.

Mirrored lenses have a metallic, partially reflective coating on the outer surface combined with a tinted glass lens. Mirrored lenses of different colors can expand the range of fashion styles. From Wikipedia, the free encyclopedia.

For the film, see Sunglass film. For other uses, see Shade disambiguation. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. November Learn how and when to remove this template message. This section needs additional citations for verification.

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