enhance the ability to reduce glare

There are some historical data, the crystal is used to hide the facial expressions and / or witnesses have eye contact during the trial.
Other experiments recorded in the middle of the eighteenth Century, using a blue or green lenses and may not be known at the time the sunglass, believe that there are specific vision disorders correction capability.
By Sam Foster (Foster Grant) was introduced to the United States in the late nineteen twenties cheap sunglasses Shanghai Bund's most famous East Coast summer hot the Atlantic City, New Jersey bridge in the legend of the Woolworth Department store.
Around 1926, the famous Bausch & Lomb eye wear has a best development in the world - Ray-Ban Sunglasses brand during the first and second world wars, pilots and today are still available. Eternal form, function and style.
Great development of science and technology the use of sunglasses / shade, another year 1936, Edwin H. land test, to use his patent filter lens cover, further enhance the ability to reduce glare, sunglasses. The camera was later developed, camera lens and various optical accessories.
Nineteen fifties sunglasses, started to play, movie stars and musicians of the fashion table "cool" factor has become a cultural phenomenon, and in a fashion accessory, the world regardless of time, place, indoor, outdoor, during the day, or night. "Cool" problem in those days, to a new level.
Foster Grant came to their end chic sunglasses, in other words, "who is behind those foster grants and advertising activities?" This makes the company a dominant force in the world, there must be in the United States and foreign fashion framing. Today, sunglasses or shadow has come a long way to go, since its launch, the fashion accessories trend continues a must evolve as a part of any wardrobe with a year, whenever and wherever possible.