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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.
Silhouette manufactures and distributes rimless eyewear, full rim eyewear and sunglasses as well as lenses. For many years, Silhouette was a licensed manufacturer of sports eyewear for Adidas and Swarowski. Silhouette currently produces eyewear under three brands: Silhouette, NEUBAU EYEWEAR and evil eye.
Pinhole glasses, also known as stenopeic glasses, are eyeglasses with a series of pinhole-sized perforations filling an opaque sheet of plastic in place of each lens. Similar to the workings of a pinhole camera , each perforation allows only a very narrow beam of light to enter the eye which reduces the size of the circle of confusion on the ...
In the late 1970s, the lens shape was re-designed to the "S9". Black "S9" frames were released for a brief period, [2] before brown cellulose acetate replaced the black. The brown cellulose acetate frames were discontinued in 2012, and a new smaller unisex lens shape, the "5A", was introduced, with a black frame.
Myodiscs are not a preferred lens type, but are the least expensive option among available lenses fitted for minus powers beyond -12 diopters. They are cheap to produce but cause scotoma, a ringed blind spot. As a result, most practitioners encourage using other lens styles. The myodisc has been categorized as a lenticular lens. These are ...
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.
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