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In theory, the ordinary naked eye three-color vision, to generate blue, green and red wavelengths are three cones. However, the inadequacy of the naked eye is the presence of metamerism color, that colors look the same in spite of, but is actually made up of different spectral composition. In order to break through the “inherent redundancy” of the human eye, researchers from the University of Wisconsin-Madison have developed a device that uses two different transmittance lenses for left and right eyes, effectively triggering a four-color vision by separating short-wave cone response , that is, there are four different types of cells in the eye cone. After wearing glasses, the wearer can distinguish the difference between the metamerism of color, allowing the wearer to see the new color after the naked eye can not see. ray ban sunglasses dillards,Physicist Mikhail Kats told New Scientist: “The naked eye looks exactly the same color, and when you wear your glasses you will find that the two are completely different colors. In nature, there is a more complex visual system like goldfish Of the creature, born with the ability to deal with the extra wavelength in the wear of this glasses, but also gives the human can be comparable to the visual ability of these creatures. This design does not have a significant negative impact on the human body, to help people distinguish between the various blue Color, violet and purple, and we think that additional spectral information can be understood as creating a new set of “primitives” that can be used without the help of a filter to identify the color. This scientific discovery theory Can be divided into a cone or cone combination, in the future to form a maximum of six cone-like vision system.The system allows people based on the launch, reflection, projection spectrum to find the difference between objects, so far not yet found to have any adverse effect on the human body. Finally, the research team said the discovery could very Enhance the ability of human vision, so that human beings have a more accurate way to camouflage detection, and in the arts and data visualization aspects derived more powerful means of security.

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Finding Flaws on the GlassesLooking for Proper PackagingJudging the SellerCommunity Q it comes to a pair of shades, nothing beats the old school cool of Ray Bans. Whether you’re aiming for the classic Wayfarer look, the Dirty Harry sheen of a pair of aviators, or the refined elegance of a pair of Clubmasters, there is no settling for anything but the best. Don’t let yourself get robbed be a smart consumer. Know how to tell the difference between the real deal and cheap imitations so you can wear your Ray Bans with confidence.Look and feel for seams on the plastic. All genuine Ray Ban products are crafted from high quality materials using the finest manufacturing processes. Notably, the plastic body of Ray Ban sunglasses are cut from a single piece of acetate and are hand polished. Because of this, you shouldn’t be able to detect any nicks, rough spots,mens ray bans sunglasses uk, or especially seams on your glasses. These are after products from cheap manufacturing processes and are dead giveaways that a pair of “Ray Bans” aren’t what they are being billed as.[1]Seams can be anywhere on a fake pair of Ray Bans, but they’re especially likely to be on the places where the mold used to create the plastic closed namely, the upper edges of the glasses above the lenses and the tops of the “arms” that rest on your ears.Feel for an inappropriately light weight. Take your Ray Bans in your hands. Turn them over a few times. They shouldn’t feel unusually light, thin, or fragile. If your glasses seem like they may not be heavy enough to keep a few pieces of loose paper from blowing away, there’s a good chance they’re not real.
Real Ray Bans have metal support struts inside the “arms” that sit on your ears that are responsible for much of their weight. If you have a model with transparent arms (like, for instance, the Clubmaster Squares)[2], you should be able to see this metal. If you can’t, you’ll know you’ve been wearing fakes.
Check for non glass lenses. Take your glasses off and look at them from the front. give the lenses a few gentle flicks with your fingernail. If they have the look, feel, and “clinking” sound of genuine glass, this is a good sign many Ray Bans use real glass for their lenses. Non glass lenses don’t necessarily mean that your glasses are fake, however, unless they’re obviously cheap looking, cloudy, or poor quality.f your lenses don’t feel like glass, don’t panic some models of Ray Bans have non glass lenses but are still made from the highest quality materials.[3] To be clear, perfectly clear, glass lenses are a sign that your glasses are probably real, but non glass lenses don’t necessarily mean they aren’t.Look for low quality metal hinges. Open the glasses and look at them from the back. The hinges in the corners of the glasses should be of good quality metal construction. They should be cleanly bolted to the glasses, not glued on or held in place with cheap plastic as noted above, these are signs of cheap, rushed manufacturing processes.Many but not all Ray Bans have a distinctive metal hinge that contains seven interlocking metal “teeth”.[4] Seeing this is a good sign, but its absence shouldn’t be cause for concern, as other types of high quality metal hinges are sometimes used (for instance, for Ray Ban’s Aviators and Clubmasters).Look for low quality engravings in the corners of the glasses. Look at your glasses from the front. If you’re wearing most models of Wayfarers of Clubmasters, you should see small, silver, horizontal diamond or oval shaped marks in the corners of the eyes. These should be sharp, shiny, and well made. You shouldn’t be able to scratch any of the shiny material off and they shouldn’t seem like they can be easily removed. If the engravings don’t look very well made, there’s a good chance that the glasses aren’t, either.Look for a poor “RB” etching on one of the lenses. Most models of Ray Ban glasses will have a small, almost imperceptible “RB” etched in the trademark Ray Ban font on one of the lenses. This will be small and near the edge of the lens, but it may be easier to see if you shine a light at the glasses from an angle. If your glasses are fakes, you may not be able to see this at all or it may appear smudged or sloppily etched.

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With Ray-Ban, bright point of view, and other well-known brands of the world’s largest eyewear manufacturer Lu Xun ladder card group is expected to usher in 2017-2018 accelerated recovery, sales are expected to reach single-digit high to medium growth. Luxottica (LUX.MI), the world’s largest manufacturer and retailer of eyewear, has just released its semi-annual report, declining both its sales and profits in the first half of 2016 and cutting its full-year revenue forecast. This is the first time that Italian companies with well-known brands such as Ray-Ban, Oakley and LensCrafters have fallen for the first time in nearly a decade.
According to earnings reports, due to the second quarter, weak revenue, as of June 30 this year, six months, Lu Xun ladder card adjusted revenue of 4.719 billion euros (about 34.604 billion yuan), down 0.7%; adjusted hair Profits of 3.108 billion euros (about 22.79 billion yuan), ray ban sunglasses deals online,down 2.9%. Lu Xun ladder card announced this year’s sales growth forecast, from early March to develop 5% -6%, down to 2% -3%. Founded in 1961 Lu Xun ladder card’s main business, including glasses and sunglasses design, production, wholesale, trade and retail, vertical coverage of the whole industry chain. In addition to its own brand of Ray-Ban, Oakley glasses, and bright point of view, Sunglass Hut chain stores such as retail stores, it also includes Giorgio Armani, Tiffany & Co., Prada, Coach, Dolce & Gabbana, Chanel, DNKY and so the vast majority of luxury brands OEM glasses and sunglasses. North America is Lu Xun ladder card’s largest market, its contribution to the turnover of more than Liu Cheng. However, the first half of this year, due to macro consumption sluggish and bad weather, including Ray-Ban sunglasses in the region, including poor sales, adjusted net sales fell 2.7%. In addition, the Lu Xun ladder card on the Ray Ban and other brand dealers a strong control also directly affected its performance. Dealers only after the company’s consent before they can carry out discount promotions. In March this year, Lu Xun ladder card into 1.5 billion euros (about 11 billion yuan), to optimize the retail channels and in the field of e-commerce expansion, in response to sustained slowdown in profit growth. The mid-year report also said that the reporting period included a sum of about 66 million euros (about 484 million yuan) in one-time expenditure for last year’s acquisition of sports eyewear brand Oakley after the layoffs compensation and channel adjustment. After 2005, Lu Xun ladder through the acquisition of Beijing Xueliang, Guangzhou Ming Gallery and Shanghai modern optics and other domestic optical shop chain, to enter the Chinese mainland market. The Daily News pointed out that thanks to a strong sales network and favorable exchange rate changes, Lu Xun ladder card in the first half of this year to maintain growth in the Chinese market. During the reporting period, Lu Xun ladder card in the Chinese mainland opened nine Direct brand stores, and the brand in the Chinese market is optimistic about the future development. Last November, Lu Xun Ti card in the Chinese mainland, Hong Kong and Southeast Asia to adjust the recommended retail price, to gradually reduce its brand China and the international market price difference. Paolo Ciarlariello, president of Greater China, Lu Xun Tikka Group, said that China is one of the group’s most important markets, the proposed retail price adjustment for the Chinese customers to provide the right price, and brand and product experience , Thereby enhancing customer loyalty. Recently, Lu Xun ladder card management personnel are also frequent changes. In January this year, Lu Xun Tikka abolished the then chief executive Adil Mehboob-Khan. This is the company nearly 17 months to leave the third CEO. Currently, Leonardo Del Vecchio, the 81-year-old founder and controlling shareholder, returned to management as Executive Chairman.
The company is expected to usher in 2017-2018 accelerated recovery, sales are expected to reach single digits to high segment growth. However, Chief Financial Officer Stefano Grassi also said that Lu Xun ladder card is difficult to predict whether the realization of the next two years of revenue targets because of the recent turmoil in the international security situation on the tourism and retail industry impact.