Polaroid Eyewear layers are then fused to both sides of the UV absorbers, making the lens light, flexible and impact resistant. A scratch-resistant layer on both the outer surfaces completes the lens structure. Polaroid Eyewear Polaroid Eyewear manufactures polarized sunglasses and polarized lenses, as well as optical frames, reading glasses, and clip-on lenses. Polaroid Eyewear was a part of the StyleMark group and sold to the Safilo Group in November 2011. Polaroid headquarters is located in Padua (Italy). Edwin Land, born in 1909 in Connecticut, invented Polaroid, the world's first polarizing material for commercial use, in 1929. He founded the Polaroid Corporation
Polaroid SX-70 cost of $180 for the camera and $6.90 for each film pack of ten pictures ($ and $, respectively, adjusted for inflation) limited demand, Polaroid sold 700,000 by mid-1974. In 1973–4, the Skylab 3 and 4 astronauts used an SX-70 to photograph a video display screen to be able to compare the Sun's features from one orbit to the next. There were a variety of models beginning in 1972 with the original SX-70, though all shared the same basic design. The first model had a plain focusing screen (the user was expected to be able to see the difference between