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its was thousands of years back when the Iraqi scientist Ibn- al- Haytham mention a device like this in his book,Book of Optics 1021(http://www.museumofvision.org/collection/sets/?key=28 for history of glasses.
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The earliest mention of glasses is said to have been worn by monks and scholars.The inventor is still unknown.
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The invention of the printing press in 1452,the growing rate of literacy and the availability of books called for new designs and eventually mass production of inexpensive glasses.
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Leonardo De Vinci is said to have created sketches that suggest the optics of the human eye could be alter by placing the cornea directly in contact with water.(http://www.allaboutvision.com/contacts/faq/when-invented.htm)
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he designed the first camera in 1685(for camera http://www.allaboutvision.com/contacts/faq/when-invented.htm)
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in this time glasses were made by hand and with the invention of side or temple pieces they became better.then Benjamin Franklin came and invented bifocals(a very important invention for glasses)
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Large scale manufacturing became possible by the end of this century and came in fewer styles.Soon glasses were known as a symbol of old age and encouraged the invention of lorgnettes which came from scissor spectacles.they became so popular that manufacturers started putting them in all kinds of things such as mechanical pencils, fans and even an ear trumpet.
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The first practical photography was made by Louis Daquerre,but it took him almost 10 years to create an effective method of saving the images and is now known has a daguerreotype.
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people saw the eyeglass become a industry of its own with manufacturing and distribution.Styles soon changed with Hollywood and new materials such as plastic.
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the lens developed by Gareth Webb are able to no only correct eyesight but improve it too and don't degrade over time.
