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The size of the wave is measured at a wavelength.400?

irenezhang
irenezhang 7/6/17 5:31 PM





Buy 9 sunglasses in accordance with the vision,it is apparent to the judge.To purchase a high-quality sunglasses,the only way to run is a regular of light shop to purchase optical shop,a sunglasses.10,face modification:① round face: you in order to weaken your profile,requires a linear or angle of the frame,to reduce obesity,face deep a more exquisite look as color lens,please use the subtle sensation.② square face: round face,instead,you are in need of some rounded,streamlined frame to set off a temperament that is not your special inhibition.③ triangle face: it used because it will be better in the broad and narrow face,large frame,please do not use a square frame,thin frame,round,frame,the best of the bright colors for.<br/><a href="http://www.voguestore.eu/">Fashion Sale Adidas</a> ④ the face of the oval: You,Taiwan was born and very suitable for Oh sunglasses.What kind of style,no matter how fit,does not note the size ratio on it.⑤ rectangular face: because you are best suited for the large frame sunglasses,you are the face,so that it looks more delicate,can make a small drawback of long face,color dark color.5 brand many well-known,such as Nike,Timberland,Gucci and Kenneth Cole,brands such as,as part of the sunglasses product line.Not only many sunglasses manufacturers,the special texture of the propaganda of characteristics and a significant increase in the product.It will be lower than the floating between $ 20 to several hundred US dollars,depending on the price of the features and brand of sunglasses.In addition,the market there is a forgery.Discount stores and flea markets cane ??
<br/><a href="http://www.decoration-links.com/">Cheap New Balance 574 Mens&Womens</a> mappings at a time,to you,to sell counterfeit expensive brand of counterfeit sunglasses,but you can find a skilled in the art that look identical in appearance,and the price is much lower than the real thing .You choose the fake instead if you buy them really brand of sunglasses,do you spend your own brand a lot of money to or to buy the real nature of the difference?The biggest problem is the production method of inexpensive sunglasses lens.They are simply coated,a layer of color film to normal plastic.Frame similar to these counterfeit color and Oakley X- metal Romeos or Ray Ban Predator is,actual lenses are very different.Even if,Principle 7 Quality sunglasses,"light modulator." It's very effective sunglasses as it is suitable to the human eye,you can adjust the external light.In the following section,SunglassesSunglassesAdjusting the light to introduce the different techniques used by the sunglasses manufacturers.In order to better understand these technologies,first,you need to understand something about light.Constant wave electromagnetic energy of the bundle.The size of the wave is measured at a wavelength.400? 700 the visible wavelength range of nanometers.Inversely proportional to the energy light waves and wavelength,short wavelength,high energy.
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The visible light,the maximum value of the purple energy,minimum energy red light,and the visible light spectrum is ultraviolet light.In fact,it contains a lot of natural light in the ultraviolet.Ultraviolet light of high energy,and due to the ultraviolet energy of your cornea and retina damage.What is glare?Unit of measurement of the intensity of the brightness and light is the lumens.For example,in the room,most of the artificial light intensity is from 400? 600 lumens.Sunny outdoors,if you want to float in the brightness wide range,thousand lumen shade of brightness,high-speed roads and other specific areas,there is a large area,such as the brightness of 6,000 lumens.Brightness following of 3500 lumens,we feel very comfortable to the human eye.When the brightness of direct or reflected light from reaching the 4000 lumens,the human eye will receive light became difficult.<br/><a href="http://www.decoration-links.com/fashion-sale-cheap-2016-new-balance-c-154_155.html">Fashion Sale Cheap 2016 New Balance</a> <br/><a href="http://www.freight-forwarders-forwarder.com/--c-116_123_126_127.html"> </a> <br/><a href="http://www.voguestore.eu/fashion-sale-nike-free-flyknit-c-42_86.html">Fashion Sale Nike Free Flyknit</a>

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