Amazing facts about glasses and lenses
Glasses are invented by people for quite some time, and this means that people have always thought about how to fix bad eyesight. In the era of new technologies, the constant stay under artificial lighting, more and more people suffer from poor vision. This means that glasses or their alternatives are in great demand. Also, glasses are firmly in vogue and do not always act as a vision corrector. Sometimes they are worn just for beauty. But there are sunglasses that perfectly protect the eyes from excessive sunlight in the summer. This article contains the most amazing facts about glasses and lenses.
The first glasses were invented a long time ago, around the 10th century in Arab countries. It is also known that the Eskimos protected their eyes from the sun with glasses made of pieces of bone or wood with hollow holes.
The first lenses were invented by Leonardo da Vinci, but then they were made of glass. Now polymeric materials are used more often.
Italy has been recognized as the leader in the production of glasses, and the second place went to the country of high technologies - China.
Sunglasses were invented by the inhabitants of the Far North. Goggles were designed to protect against the glare of the snowy plains.
Europeans use sunglasses primarily to protect from the sun, but the Americans also use them to equip the police and military. These glasses are more durable and made of bullet-proof material. Soldier sunglasses have a large selection of models. The police use dark glasses to hide their emotions and give credibility to the image.
Sunglasses have become the main popularity due to the fact that they were previously worn by actors. Glasses were used to protect the eyes from ultraviolet radiation, because the actors were often subjected to arc lamps, which were used at the time on the set. The eyes of the actors were blushing, and they wanted to hide it.