Fast-Tint Protective Eyewear (FTPE) or, roughly translated, glasses that protect against rapid change in shade, are the product of many years studies in the United States. And they are designed to aid US troops, and US pilots. Basically, they dynamically adjust the amount christian louboutin sandals on sale of light the eye receives. If you watch a sunrise, the light from the sun will be passed through a filter and what comes from other sources will not be modified. This technology allows a balance interesting and diverse implications of nuances that we perceive.

In the military Christian Louboutin pigalle glitter sphere, things are experimental, but U.S. marines have already received a set of glasses. If the technology is advanced enough, which is very likely, the soldiers will be able to distinguish both forms in the dark and the bright light. How about the users at 'home'? Well we Christian Louboutin black boots will have to wait... but until we have the new trend we can use the first glasses ever made for use by the military.

Aviator type sunglasses are now a fashionable addiction, Even if the model was lunched some 70 years ago in the United States of America. Ok so aviator Christian Louboutin leopard pump sunglasses were invented specifically for employees of the U.S. military. This model was designed between the years 1929-1930 by Bausch & Lomb U.S. aviation pilots and of course the now famous company Ray-Ban, who invented the form of those sunglasses.

Ray-Ban has of course sale christian louboutin signed a contract with the U.S. Air Force to produce the "aviators", and the scientists of the company worked carefully to create the ideal form of glasses. Finding the most suitable and durable material for frames was also a must.

Besides work, we must mention that scientists christian louboutin shoes sale have used some of the most special technology at the time to make the glasses multiple functions. They do not only protect your, but also confers additional clarity of vision.

And it was Douglas MacArthur the American general of WW II who made the type aviator sunglasses one of the most popular and looked after accessories. Having a very charismatic presence, he became one of the "superstar" figures of the time. And it was the aviator sunglasses that ware an "official" part of MacArthur's image along with his pipe, now we can't be surprised that aviator sunglasses became a highly sought after accessory and a very fashionable accessory. Even more, the popularity of the model is very understandable, since, due to the versatility, the model fits everyone and looks very good on any head.