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Solar shields Usually refers to models of sunglasses with large lenses. Stunna shades: Used as a slang term in the hyphy movement, usually referring to sunglasses with oversized lenses. Glecks is Scottish slang for glasses or sunglasses. Cooling glasses is a term used in Southern India (predominantly Kerala) and the Middle East for sunglasses.
Typical sunglasses lenses are tinted for protection against bright light or polarized to remove glare; photochromic glasses are clear or lightly tinted in dark or indoor conditions, but turn into sunglasses when they come into contact with ultraviolet light. Most over-the-counter sunglasses do not have corrective power in the lenses; however ...
This was first introduced in mass production by the Univis Lens Co. of Dayton, OH. in 1926. [11] In 1935, Courmettes went on to patent the Tilted Bifocal Lens, [12] in 1936, a method of grinding two prescriptions simultaneously on that Tilted Bifocal Lens, [13] and in 1951, the Cataract Bifocal Lens. [14]
A prescription of −1.00 +0.25 × 180 describes a lens that has a horizontal power of −1.00 D and a vertical power of −0.75 D. Only ophthalmologists write prescriptions in + cylinder. An optometrist would write a prescription in - (minus) cylinder. All spectacle and contact lenses would be made in minus cylinder.
Serengeti Eyewear is a sunglasses line owned by Bollé Brands. Their main focus is eye protection; the company researches and develops technology such as photochromic lenses, polarized lenses, spectral control, among others.
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).
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