Search results
Results from the WOW.Com Content Network
Man with glasses. A woman with glasses. Glasses, also known as eyeglasses or spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears for support.
As the stones were experimented with, it was slowly understood that shallower lenses magnified more effectively. Around 1286, possibly in Pisa, Italy, the first pair of eyeglasses was made, although it is unclear who the inventor was. [51] The earliest known working telescopes were the refracting telescopes that appeared in the Netherlands in
T-stops were "true" or effective aperture stops and were common for motion picture lenses, [9]: 349–350 so that a cinematographer could ensure that consistent exposures were made by all the different lenses used to make a movie. This was less important for still cameras and only one still lens line was ever marked in T-stops: for the Bell ...
Glasses described as wraparound may alternatively have two lenses, but again with a strongly curved frame. These were first made in the 1960s as variants of the Aviator model, used by Yoko Ono and Clint Eastwood in the Dirty Harry films. The modern variant surged in the mid-1980s, heavily based on the then-popular Wayfarer, but adapting it to a ...
Original bifocals were designed with the most convex lenses (for close viewing) in the lower half of the frame and the least convex lenses on the upper. Up until the beginning of the 20th century two separate lenses were cut in half and combined in the rim of the frame.
To combat fake solar eclipse glasses, the American Paper Optics team created the Core Four elements of eclipse glasses to look out for to ensure your safety during the solar event.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
A pair of horn-rimmed glasses. Horn-rimmed glasses are a type of eyeglasses. Originally made out of either horn or tortoise shell, for most of their history they have actually been constructed out of thick plastics designed to imitate those materials. They are characterized by their bold appearance on the wearer's face, in contrast to metal ...