The making of sunglasses goes back to the roman emperor Nero. It is said he used polished light emerald green gems to watch gladiators. The invention of sunglasses was much later.
The first glasses were worn in the twelfth century by Judges in chinese courts. The smoky quartz was used to hide the expression in their eyes.
Italy developped its first glasses in 1430 and by 1600 people realised the benefit for eldery people.
In the mid 18th Century, James Ayscough developed blue and green corrective lenses for correcting optical impairments. The start of a colored view!
The problems for developing glasses were manyfold:
How to keep the glasses on the nose
How to use sidepieces
How to hold the glasses
A long story of trial and error that leaded to our modern glasses.
And it was in 1929 that Sam Foster launched his brand with the first mass-produced sunglasses for walkers on the beaches of Atlantic ity and New Jersey.
Followed in 1930 by Bausch & Lomb who developped sunglasses to reduce high-altitude sun glare for pilots. The military took in! A dark green tint that absorbed light to its yellow spectrum.
Later Edward H. Land invented the Polaroid filter and used it in sunglasses. And Ray Ban applied polarization for his anti-glare sunglasses.
The niche boomed. Everybody wanted sunglasses. Design, fashion and stars developped their own brands.
And people started protecting their eyes from the harmful effects of the Ultra Violet (UV) rays of the sun and the blue light of screen, computers and tablets.
Today many professions have their own protective glasses, from sporters to pilots.
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