The Most Detailed History Eyewear

20 septembrie 2010

Articol publicat in: Sport

Most people only know the history of eyewear from the first regular eyewear came out. But seldom of them know the history before. How did the idea of eyewear come out? How did they develop step by step? Lets have a look of the most detailed histoty eyewear.

BC, China: A sort of eyeglass was made from tea stone. The substance itself was said to have magical power to help visually defective people.

AD 63: Seneca noted that letters are seen larger and clearer through a bulb of water. He reputedly read all the books of Rome that way. Nero, for whatever reason, watched Coliseum activity through a huge gem.

AD 1000: His living at large had somehow threatened powers that were. By then in Spain, after a decade of house arrest in Arabia, Persian mathematician Ali al-Hazan described eye anatomy, rudimentary workings of crystalline lenses, and reflection, besides magnification power. Visible phenomenon stemming from refraction was not better explained until 1604 when Johannes Kepler published. Ever inquisitve, Ali al-Hazan managed to strip some mystery from both rainbow and sunsets. His speculation on the nature of light led him to guess that it emanated from objects, not the eyes as was thought. Whereas Greek philosophers had considered experiment should demonstrate their conclusions, Hazan used experiments to test ideas. He produced seven “Optics” volumes in as many years. Hazan proposed lenses to aid natural vision.

1280: Two of the leather handles that framed magnifying-glasses were riveted together in an inverted ‘V,’ which, if constantly minded, would balance on a nose. The soft material helped them stay in place. Use spread rapidly.

14th Century: Glass produced in the Venetian window industry displaced rock crystal for making lenses.

15th Century: A rigid-arched bridge became a next means for the nose to support lenses. Two or three thin strips of bone or horn were arranged to flex. Some eyeglasses were affixed to a headband or cap.

17th Century: One piece wire rims with integral bridging framework emerged in an elegant design looking entirely familiar today. Flattened wire got further reshaped into channular for clasping lenses. Those wire holders were minimally thread-wound along arcs of rim which contacted the nose.First lens production was licensed by city-states. Later, lenses were made in prisons. When lens-production moved to unlicensed shops elsewhere, lower-quality wares got distributed by itinerant peddlers.

Spaniards equipped eyeframes with silk ear-strings. When Spanish, and Italian missionaries carried that into China, the Chinese replaced ear-loops with distal metal weights.

Early 18th Century: Lens technology accelerated. The flexible interconnector returned to displace the rigid-wire bridge, and was itself superseded by a spring-loaded nose arch. After biological basis for vision was established by Enlightenment scientist-physicians, people became mostly convinced that eyeglasses could not destroy vision, so that more of those who might benefit from glasses got them and freely used newly easier afforded glasses.

1720: Side-bars or arms appeared, either pressing onto temples, or protruding into wigs.

1728: Wigs faded from fashion, so that London optician Edward Scarlett introduced side bars which extended to rest on ears.

By mid century, sidebar frames were generally regarded as more comfortable, as well as, not being held by hand, more useful. Spanish society in particular saw glasses as a mark of learning and status, soSpanish nobility adopted inordinately large spectacles which, from now-obscure cause, were still temple-glasses.

1752: A medical instruments designer, James Ayscough fabricated spectacles with ear-rails –hinged device.

1756: Achromatic lenses were introduced by the English optician John Dolland.

1775: Benjamin Franklin invented bifocals.

1800s: First introduced in England as an ‘eye ring,’ the monocle remained popular among men of European upper society throughout the 19th century. One could be dropped in cleavage as easily as one’s soup. Invention, science, and craft-related development advanced corrective-vision technology quite apace grand frivolity.

1825: Lenses to correct astigmatism were first offered.

1850: Downward curving earpieces appeared.

1886: Carl Zeiss’s crown-glass improved lens uniformity and increased clarity.

20th century: Intrinsic inadequacies inherent in folkish glasses frames had yet to become so glaring. Much like the buggy-whip, eyewear remained unchanged, with discomfort just taken in stride. It indelibly established his rough and ready public image, when President Theodore Roosevelt donned an already retro-style pince-nez for his official 1905 photograph. Governments issued two pairs of prescription glasses to vision defective soldiers. Military pilots got sunglasses. Thick black-plastic GI rims lent ordinary unstylishness to Superman’s disguise. Plastic soon prevailed in lenses as well, being both easier to manufacture and lighter. In 1958 the French company Essilor International finally bested Ol’ Ben, by inventing progressive multifocal lenses. They also introduced and coined ‘Varilux.’ By 1999 a new one-world economy furnished glasses for less than 1% of their mid-century price. Trial powers of vision-corrective glasses were sold from displays next to eyeshades. The canard that magnifiers harm vision resurfaced, but at the same time, unmitigated aid to vision being mostly assumed, Westerners’ eyewear considerations were mostly for looks.

21st century: Well-supported, balanced lenses-holders emerge, and so diverse variations on a humane genre of glasses will gain quick acceptance. Extremes may aptly be called ‘spectacle.’ The 3rd millennium sees age related dimming of sight in the rear view mirror –medical history.

Now you can get to know precisely how eyewear are developed to their present situation. This detailed history eyewear will tell you everything.


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