Polarized Sunglasses | What is the big deal?
Ever wondered exactly what Costa Del Mar polarized sunglasses really do for ones eyes, and additionally if it is an issue that needs to be factored into your decision when shopping for some of those nice looking shades? There is a lot of science in the creation and processing of quality sunglasses.
Polarized Sunglasses block rays of sun light focused on a horizontal plane. The word polar, whenever used in mechanical design or in other scientific fields of study, signifies lines are located on 90 degree angles to each other, hence the term “polar coordinates”. When sunglasses are polarized they have got microscopic crystals sandwiched between layers of the lens materials which rejects the horizontal light rays.
Sunlight is made up of light rays which radiate in all directions. Once the rays strike a smooth, flat surface, such as a body of water, sand, snow, a sheet of glass, or even asphalt, almost all the rays are reflected. The more reflective the surface, the brighter they are. This in turn creates a sometimes hazardous intensity of light rays which is referred to as glare.
Reflected light rays are really partially polarized, meaning that the light rays tend to be traveling in a far more targeted, far better aligned, less random, and much more horizontal pattern. And therefore given that our own eyes are lined up horizontally rather than vertically, (and thank heavens they are) we get bombarded with sun rays.
Costa Del Mar polarized sunglasses have already been used for years by fishermen and boaters who need to eliminate the glare on the lake. However, many others that hang out outdoors have realized the use of polarization. Interest in this kind of lens has increased considerably.
One method to determine whether your budget sunglasses are really polarized requires you to hold them next to your eyes just like you normally put them on, look for an object that is brightly reflecting the sun and look through the lenses. After that reposition them down and you should observe a lot more glare than when looking through the lenses. At this point move the sunglasses 90 degrees where the temples are top to bottom and look through one lens, and move it away just like before. The glare is about equal with or without the lens. If you really have polarized lenses you won’t see the glare with the glasses while held from a horizontal angle and you will then find it using the lens in a vertical position because the lenses are horizontally polarized.
Apart from folks that enjoy water sports, other people who reap benefits greatly through polarized sunglasses are joggers, cyclist, and golfers. Polarized sunglasses help each one see clearer through the elimination of surface glare.
They are definitely used for driving a car, and in truth, decrease glare from your long, flat surface of the hood of the car as well as the road’s surface. Nevertheless bear in mind that some vehicle windshields are already polarized, so this doubled outcome can cause some odd shapes in your window glass. Polarized sunglasses also could possibly be used in the house if a person happens to be especially sensitive to light.
Even though polarized lenses significantly enhance comfort as well as eyesight, there are actually a number of instances where polarized sunglasses may not be the best choice. For example look at alpine skiing, where you will not choose to inhibit the light reflecting from solid ice areas, since the skiers need to recognize the hazards coming up.
Also, polarized lenses could possibly decrease the visibility of your graphics from an LCD (Liquid Crystal Display) sometimes found on the dash section of vehicles or in other areas like the electronic digital screens on a bank ATM.
With polarized sun-glass lenses, additionally you might be unable to look at your cellphone or GPS navigation screen. Aircraft pilots have documented issues while reading Liquid Crystal Displays found on all their instrument panels,which could be an important problem when it comes down to a split second choice based on the details displayed.
Nevertheless, for the majority of of our sporting along with other outside adventures, polarized sunglasses are more of a prerequisite than just a extravagance. And so with the many options of Costa Del Mar polarized sunglasses offered, combined with the characteristics and design of the frames, putting on sunglasses seems as basic as wearing shoes.