Early sunglasses served a special purpose and it wasn't to block the rays of the sun.
For centuries, Chinese judges had routinely worn smoke-colored quartz lenses to conceal their eye expressions in court. It wasn't until the 20th century that modern-type sunglasses came to be.
Chinese judges wore smoke-colored quartz lenses to conceal their eye expressions in court.
Vision-correcting darkened eyeglasses were introduced into China from Italy
James Ayscough believed blue-green-tinted glass could correct specific vision impairments.
Sam Foster found a ready market for sunglasses on the beaches of Atlantic City, New Jersey
A clever advertising campaign by Foster Grant makes sunglasses chic and popular.
These darkened lenses were not vision-corrected, nor were they initially intended to reduce solar glare.
Smoke-tinted lenses came to serve also as sunglasses, but that was never their primary function.
James Ayscough began experimenting with tinted lenses in spectacles in the mid-18th century.
No comments:
Post a Comment