Posts Tagged ‘polarized sunglasses’

about polarized sunglasses

June 15th, 2015

What are polarized sunglasses? Polarized sunglasses are designed to reduce the glare especially from the surfaces like water, snow, and glass. It is commonly used in sports such as driving and fishing by helping the wearers in these activities to see more clearly, allowing for the avoidance of potential hazards. Since light is made up for waves travelling in different directions. Vertical light is useful to the human eye. It help us to see. However horizontal light simply creates glare. Glare is concentrated light reflecting off a horizontal shiny surface, such as a car windscreen, sand, water, and snow or asphalt roads. It reduces visibility and can make it uncomfortable, painful and even dangerous to carry on driving, cycling, skiing or just sunbathing.

As we all know that we see by virtue of the light that enters our eyes in sunny days. Without good sunglasses, brightness and glare results in a loss of visual performance, which is produced when an object or light source in the field-of-vision is brighter than the amount of light to which the eyes are adapted. Most sunglasses will provide some absorption to dampen brightness, but only polarized sunglasses can effectively eliminate blinding glare. However, polarized sunglasses are not recommended to pilots. Polarized lenses eliminate reflected glare from a flat surface. However, looking through a laminated aircraft windscreen, while wearing polarized lenses can result in a reduced retinal image. Also some windscreen of aircraft is already polarized, hence polarized sunglasses result in double polarization. Moreover, some 3-D movies also use polarizing lenses. Usually one lens is horizontally polarized and the other one is vertically polarized, so that each eye sees a slightly different version of the movie screen. The eyes attempt to reconcile the two images for the brain, and the result is the illusion of a three dimensional image. Experimenters with several spare pairs of 3-D glasses lying around can play with the effects of polarization for themselves.

Since we have already know the usage of polarized sunglasses, how do I know if my sunglasses are polarized? If you have the same doubt, you can just look through the glasses at the reflection of any object on a window panel. Then, turn the sunglasses around as if they were the hands of a clock facing you. If the intensity of the reflection doesn’t change with respect to what you see through the window, they are not polarized. Another way is to hold them at 90° to another pair labeled as polarized and if the lenses go dark where the lenses overlap, then your sunglasses are polarized too. If there’s no change, your lenses aren’t polarized. Moreover, not all polarization is equal. Because not all polarized sunglasses block glare as well as they should. A polarizing filter is no guarantee of an effective glare-blocking lens. It depends on the quality of the filter and how the lens has been produced. Cheap polarized sunglasses may only cut out 10% of reflected light, but many people don’t realize there is a difference in filter quality in better made glasses. For example, Julbo’s Polycarbonate Polarized lenses cut out around 60-70% of reflected light, and ther NXT Cameleon, Octopus and Polar HD lenses cut out 99% of reflected light.

Bring Out the Sunglasses When the Sun Goes Up

July 15th, 2011

To protect against the sun on these hot July days, it becomes just as important to take care of your eyes as it does your skin. Sunglasses are more than just a very popular summertime fashion accessory, as they are necessary in shielding your eyes against the sun’s harmful rays.


Like sunscreen, sunglasses protect your eyes from harmful UVA and UVB radiation, which can cause damage over the long term. The level of sensitivity to UV rays varies with each person, and sensitivity can also be increased with certain types of mediation. Most pairs of sunglasses nowadays have 100 percent UV protection, even the cheap plastic kind. The different between those and higher priced designer pairs is in quality. A more expensive pair will have better quality lenses that do not distort the wearer’s view.

The most recommended type of sunglasses is ones with brown or amber lenses, which eliminates “blue light.” Blue light is highly visible light that causes macular degeneration, a break down of the important back part of the retinas which takes in light and translates that to the brain. Other options include sunglasses with polarized lenses, also called polarized sunglasses. Although they can be more expensive, polarized lenses filter out other reflected light from shiny surfaces, such as water or snow. The experts strongly recommend them for boaters or for driving long distances on hot days. Moreover, transition lenses, lenses that go darker based on the light, are very popular for budget reason. But the experts point out that they are not “true sunglasses,” as they do not go as dark as regular shades.

The experts also remind parents that eye protection is just as important for children as it is for adults. As it is difficult to keep sunglasses on a baby, however, he said a large brimmed hat will do the trick.

Polarized Sunglasses Protect Your Eyes Whenever and Wherever Possible

June 27th, 2011

As for an outdoor sport lover, especially people who have deep love for water activities such as boating, fishing or surfing, a pair of sunglasses is the essential part. But if you have experienced a lot of water sports, then you may already know that the common sunglasses can not protect your eyes very well. The reason is that the common sunglasses can cause glare, especially when they get wet. Glare always occurs whenever light waves come in contact and bounce off from a reflector such as water. This is the very reason that waster sports enthusiasts need sunglasses that can cancel out some glare, even if you get water in them. Polarized sunglasses are designed to do that. Moreover, a quality pair of polarized sunglasses won’t make you squint when you are subjected to the intense brightness of the sun.

On one hand, wearing sunglasses with polarized lenses enables you to block these kinds of reflected light but lets other essential light waves to pass through, so you can see clearly without having to squint and at the same time avoid the dreaded headaches caused by glare. If you have gone fishing or boating and tried to stare at the water for a few minutes, then you’ll instantly feel the unpleasant side effects caused by glare. Even just sitting on the poolside or on the shore during a sunny day and staring at the light dancing on the water, that will give you just about the same negative effects. The same goes when you’re staring at snow minus the protection provided by sunglasses.

On the other hand, actually polarized sunglasses can be worn by anyone for any type of outdoor sports when glare reduction is needed. Polarized sunglasses are not only used in water sports but also can be used in driving a car of motorcycle. You may even wear polarized sunglasses when you need to date someone for lunch during a hot day. Moreover, you also can put them on while sipping coffee at a sidewalk café, hanging out by the pool or beach and look cool while at it. So if you intend to go outside during a bright sunny day, bring a pair of polarized sunglasses to protect your eyes makes a lot of sense. Your day will still be bright and you do not have to worry about the headache caused or irritated by glare.

Top 7 Sunglasses to Protect Your Family and Yourself

June 15th, 2011

There is no doubt that sunglasses have become part of our daily attire for helping us make fashion statement and block dangerous UV rays. In fact, it is of great importance to wear sunglasses in every season. Although we stay indoors, there are some UV rays that can damage our eyes. Here are some sunglasses with different styles that you can choose for yourself and your family, so both you and your family will get good eye protection with the help of sunglasses.

Oversized sunglasses-With big frames and lenses, they are suitable for both men and women. Particularly, oversize sunglasses with retro style sweep the whole fashion world and a large number of fashionistas are crazy about them.

Plastic Sunglasses

Polarized sunglasses-Polarized sunglasses are designed to reduce the glare from surfaces like water, snow, and glass. They can be highly useful for sports, driving, and fishing by helping the participant in these activities to see object more clearly,

Plastic Sunglasses

Wraparound sunglasses-Compared with other sunglasses, they offer better protection because they can prevent UV rays from all angles, so the dangerous UV rays don’t have access to enter into your eyes. Besides, they are perfect for people to do outdoor sports such as skiing, golf, etc.

Plastic Sunglasses

Rx sunglasses-They are great items for people suffering vision problems. They can not only get eye protection by wearing rx sunglasses just like common people do, but also can become stylish and cool by wearing rx sunglasses with different styles.

Plastic Sunglasses

Sport sunglasses-Not only athletes but also common people are more likely to wear sports sunglasses for the purpose of fashion and eye protection. There are various kinds of sport sunglasses such as cycling sunglasses, fishing sunglasses, etc. Take golf sunglasses as an example. They will protect your eyes from every angle: the frontal and the sides when you enjoy sunny days on the course of golf.

prescription sport goggles

Novelty sunglassesNovelty Sunglasses are one of the hottest lights up items around. They are especially hot during summer. Due to the special style, they help you show your special and unique personality and draw much attention.

Kid sunglasses-As the human eye is 10 times more sensitive to harmful UV rays than the skin, kids are more susceptible to the harmful sunlight. So it is of great importance to protect their delicate eyes. There are many kid sunglasses with various styles and colors as adult sunglasses do. Besides, these sunglasses are often designed with Disney or other cartoon which make kids much cute.

Generally speaking, you can choose the most suitable one for your families and your friends as well as yourself. As sunglasses become a must –have item especially in summer, it is time to get at least one pair to enjoy summer.


Count the Benefits Eyewear Users Get from the Polarized Sunglasses

December 28th, 2010

It has been many years since fishermen and boater wore polarized sunglasses. It is mainly because that they play a key role in reducing the glare from the water. Thus, the polarized sunglasses have become more and more popular in these years. Meanwhile, many outside activities fans like golfers, bikers and so on also prefer to wear these glasses. As they spend lots of time under the strong sunlight, polarized sunglasses can just make them benefit from the elimination of glare.

Besides, polarized sunglasses are useful for drivers. They can reduce the glare from the roads and car hoods. Especially in the hot summer days, it is necessary for drivers to equip them with a pair of high quality polarized sunglasses. Moreover, these glasses can be used indoors such as patients with eye related problems. At this time, polarized sunglasses can protect their eyes from excessive exposure to the light.
It seems that polarized sunglasses have worked in many fields. But how do they serve all the purpose? I wonder. According to some experts, the polarized lenses works to the great extend. The light from roads or water usually becomes polarized when they met with the polarized lenses. And these lenses can block the polarized light, which reduce the dangerous glare in turn.

For the majority of outdoor activities, polarized sunglasses can bring the greatest benefits to them. Nowadays, there are various kinds of polarized sunglasses. They deal with feature of different styles, colors and materials. You can find any style you want in the current market. What’s more, the prices are reasonable. You can even get polarized sunglasses like polarized prescription sunglasses from the online optical stores. If you like to do outside activities, polarized sunglasses will give you a hand.

Principle and functionality of polarized sunglasses

June 15th, 2010

Sunglasses in colorful models are meaningful for people who are fashion conscious. Red sunglasses, pink sunglasses, yellow sunglasses and others are some of the popular styles. When more and more customers increasingly focus on sunwear appearance and style, it is worth emphasizing that the original functionality and other functional benefits should not be ignored. Buying any pair of sunglasses should first make sure 100% UV ray protection. Excellent protection against harmful light has long been and should continue to be the most valuable gift sunglasses can give. Yet regular sunglasses may not be competent in special conditions. For example, if there is strong glare reflected from flat surfaces on a sunny day, normal sunglasses can not shield the eyes adequately. In this case, polarized sunglasses are needed. Briefly speaking, polarized sunwear is aimed to reduce sunlight glare in outdoor circumstances, which is a great help for certain groups of people.

How can polarized sun glasses bring this functionality? Or what is the principle behind this helpful function? The sunlight is not polarized in its original form. However, flat surfaces like smooth water can separate sunlight into two polarized components which will then be reflected and transmitted in different amounts. In detail, more horizontal components will be reflected than vertical components. And an excessive amount of horizontally reflected light is the major source of glare experienced by people in such an environment. Polarized sunglasses take use of lenses that have polarized filters with the transmission axis oriented vertically, thus they can filter out unwanted horizontal light reflected by smooth surfaces. This principle explains why fishermen, bikers, golfers, joggers and skiers will receive little glare when they put on their polarized sunwear.

Polarized sunglasses are now provided by nearly all notable sunwear brands like Prada, Versace, Dior, Ray Ban and so forth. This technology has been a basic requirement or capability which can be taken to evaluate an eyewear brand. Sunglasses made of polarized lenses all come in shades from light gray to very dark, or photochromic. In other words, polarized sunglass lenses can not be crystal clear. This is a simple tip to check if your sunglasses are polarized.

Profile on Prescription Polarized Sunglasses of Different Colors

May 9th, 2010

With weather getting warm, plans for vocation in early spring should be placed on agenda. Then a pair of polarized sunglasses must be a necessary accessory, and if you have myopia or hyperopia, prescription polarized sunglasses of different colors are strongly recommended.

The so called prescription polarized sunglass is a great combination of prescription glass, polarized glass and sunglass, which can be easily observed from the name. It indicates that, wearing prescription polarized sunglasses, without contact lenses, you could get a clear vision and at the same time keep your eyes from both harmful sun rays and reflections from water and mirror, etc.. Isn’t is a good way to kill more two birds with one stone?

Then, when choosing prescription polarized sunglasses by color, you must feel dizzy, for there are really a great many kinds of colors. Which kind should you choose?

The first principle people notice when choosing the color of sunglasses should probably be whether it matches with their skin colors or not. However, apart from this principle, for the goodness to your eyes, you should choose the color of sunglasses according to the function each has.

As for the color depths, they can be divided into that of 15%, 34%, 50% and 70%. The darker the lenses are, the more visible light will be absorbed, but the color depths are irrelevant to the capacity to block ultraviolet radiation, which is merely related to materials of the lenses.

The functions vary from one color to another. Gray lenses can absorb any kind of color spectrum, therefore, no aberration will be produced. Vision for gray sunglass wearers will merely get darker. Coffee lenses are able to eliminate a great many of blue light which could improve the sharpness of vision, so sunglasses with coffee lenses are suitable to be worn in environment where air pollution is severe. Green lenses, similar to gray lenses, are capable to increase the green light reaching to eyes, which would bring cool feeling to the wearers. Yellow lenses are also called night vision lenses. They are hardly able to increase visible light, but instead improve contrast ratio. Thus sunglasses with yellow lenses are strictly not included in sunglasses. They are more preferred to be referred as night vision glasses.

Then, with the above knowledge, facing prescription polarized sunglasses of different colors, you could choose the right color and depths of that suitable to your lives most. Just have a try.

Related pages – Gunmetal Sunglasses, Green Sunglasses

Prescription Polarized Sunglasses and Their Competitive Advantages

April 18th, 2010

Sunglasses are popular, and prescription sunglasses are also very popular. And with the development of technology and urgent demands of consumers, prescription sunglasses are now divided into much more specific series. For example, some prescription sunglasses are mainly used for people with particular eye problems; some are for special outdoors sports activities; some for outdoor uses, etc. And some of those sunglasses have really attracted a lot of people and become leading products in the industry. Of which, prescription polarized sunglasses are just such typical examples. According to some statistics, those unique sunglasses have gained very wide popularity and now still maintained their competitive advantages. If so, what are their merits and advantages compared to other conventional sunglasses?

The foremost important merit on those unique sunglasses is they are polarized. Polarization is a very complicated making process, through which the sunglasses are particularly dealt. After polarization, sunglasses can be used to combat glares that are some of the most harmful rays to eyes.

Glares, as their names indicate, are some of the radiations reflected by other mirror-alike objects when lights are shed on them. They will not only affect people’s vision- many objects can not be seen if there are too many glares around, but also cause great damage to people’s eyes- some may suffer from eye problems and some others get blinded as a result. Still, glares are almost every where around people’ living environment. For example, while driving at night, drivers will be greatly influenced by glares reflected by other cars; people can not see objects in the room if they see from the windows that will reflect sunlight; snow field and water pools are also places of great glares

Now that polarization is mainly for tackling glares; prescription polarized sunglasses can prevent people’s eyes from being damaged by glares in the aforesaid situations. Those sunglasses are good alternatives for people who often drive at night, who often go outdoors, etc. Especially, now some much better series are derived from them- some of those polarized sunglasses can be used for sports use. For example, there are now some prescription polarized sunglasses for skiing; some people who love to fishing also tends to wear those unique sunglasses and so forth.

Another prominent feature in prescription polarized sunglasses is they are highly prescribed. On the one hand, those sunglasses are meticulously and precisely made according to the prescription; still, in those sunglasses are some personal elements of the wearers. Therefore, almost all wearers will find that their sunglasses are special and individualized and their personal elements and elegance are also highlighted.

It is true that people pay more attention to styles and designs other than functions only on sunglasses. But functions are also important or vital for all wearers. And the emergence of prescription polarized sunglasses has ensured that functions, styles, personal tastes can all be highlighted at the same time.

Useful polarized sunglasses

February 10th, 2010

Polarized sunglasses are made of special polarized lenses so that they can reduce the glare from surfaces like water, snow, and glass. Glare affects the performance of many while driving or during contests. Polarized sun glasses are useful for sports, driving, fishing etc… They help people see more clearly. Many sports regular participant prefer polarized sunglasses because of their special function, though may cost a little more than conventional sunglasses.

How do polarized sun glasses work? Light has some special features. Usually, a light source generates waves that go in all directions. Once encountering any surface, it bounces and then polarizes. This reflection is generally horizontal. In another way, flat surfaces such as road and quiet water reflect light horizontally. This glare can only be absorbed by vertically polarized objects. Polarized sun glasses are of this kind. So the exact name should be vertically polarized sunglasses. While blocking unwanted glare, polarized sun glasses allow optical information through. Polarized sunglasses are mainly used when the wearer need to see clearly and also has dangerous glare filtered out.

Except for their advantages, polarized sun glasses are not perfect. Some experts argue that polarized sun glasses are not competent on snow-covered surfaces. They can not provide needed contrast to distinguish ice patched or moguls. Another flaw of polarized sunglasses is that they react adversely with liquid crystal display (LCD), which is widely used on computer monitors, TVs and automatic teller machines (ATMs). From a certain angle, polarized sunglasses may make them invisible.

Almost all famous brands manufacture polarized sunglasses, such as Versace, Smith and Ray-Ban.

Helping You Fighting Glare—Bolle Polarized Sunglasses

January 28th, 2010

Golf, cycling, skiing or mountain-climbing, you are a sports fanatic; driving, fishing—your hobbies; while improving skills for sports, never overlook a key factor to enhance your sports performance—Wearing a pair of appropriate sunglasses. Bolle polarized sunglasses will satisfy all your requirements for different sports and uses everyday.

Bolle sunglasses are in hot pursuit of sports enthusiasts since their introduction in 1888. The purpose is to “protect your eyes”, for Bolle thinks defending eyes is important in each sports, while sunglasses are necessary equipment for eyes. In accordance with the purpose, Bolle sunglasses boast the premium quality for sports uses.

Bolle Sunglasses offer a patented metal frame manufacturing process called Microfusion. They have frames that are molded with molten metal alloys. Meanwhile, they have shatter-resistant polycarbonate lenses and sleek and light-weight nylon frames and flexible legs. No matter how fierce the sports are, they are guaranteed to grip your facial contours, as well as comfortable, not to say make you look good.

In particular, Bolle polarized sunglasses are especially famous. Bolle polarized sunglasses are suitable for fishermen, drivers, for skiing and mountain-climbing. Bolle polarized sunglasses can block the reflected glare and eliminate the sun’s ultraviolet rays. By using Bolle polarized sunglasses not only will you contrast colors clearly, but also you will experience reduced eye fatigue. In view of many color lenses of Bolle polarized sunglasses, two pairs are a must. A pair of Bolle polarized sunglasses of yellow or amber color may be best for overcast conditions, while a pair of Bolle polarized sunglasses of a medium or dark brown lens may work better for sunny days.

With the excellent quality and full UV400 protection, Bolle polarized sunglasses will help you fight the harsh glare and allow you perform best in sports.

Related pages – Polarized Sunglasses, Polarized Bifocal Sunglasses, Sport Sunglasses