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Wallace wearing sunglassesLine,4,protect your eyes from injury

irenezhang 2/21/17 2:38 PM

In November 2006,GB10810.3 "spectacle lenses and related products - Part 3: In the formal implementation of the transmittance specification of measurement method",is well-defined ultraviolet transmittance exceed 5% It is used as becoming not lens.Sunglasses,following which generally are clearly,has a UV function:A) is displayed as "UV400": This is a 400nm of transmittance following wavelength (λ) spectrum (λ) lens of the UV cut-off wavelength at 400nm with less than 2% τmax maximum,it means.B) "UV",labeled "UV": This is the lens of the UV cut-off wavelength from 380nm,i.e.,the maximum of the spectral transmittance (λ) is less than 2% its wavelength (λ) τmax is 380nm it means that it is less.C) and the "absorbing 100% UV" labeled: means that this is a lens has a 100% ultraviolet absorption function,an ultraviolet region,ie,the average transmittance of 0.5% or less To do.Sunglasses,to meet the above requirements,it is the true meaning of sunglasses of UV important indicator UV performance of sunglasses if we can not identify with the naked eye,sunglasses with UV protection function.Chinese performance criteria of the current product for basic requirements of UV only,the wearer can harmless.Protection,although an explicit commitment by major manufacturers,consumers,as you want to identify the only factory in order to express the commitment to the product as a product whether a measure having an ultraviolet protection,all of sunglasses It does not have the product of UV function.Limitation of colorTo observe the lens average daylight you saw through the analog yellow and green traffic signal lens,standard state: color,corresponding coordinates to be placed in the chromaticity diagram in the corresponding area (Figure 1).If the coordinate value measured color is beyond the limits of a given color gamut,various traffic signals will lead to confusion,it is one of the risk of traffic accidents.Transmittance of the traffic signalAppears to be specified in the corresponding standard of the traffic signal transmittance,red,yellow,observed through the green signal of the lens: is the red signal should have% ≥8,yellow and green signals% ≥6 should order to,not only the ability to identify a low signal when the colored too traffic signal transmittance,I will reduce the risk of one traffic accident.MarkTo marking requirements,each pair of glasses,(such as QB2457) run standard code,category (or light-colored sunglasses,such as a mirror of the sun),you need to mark the production and the name and trademark.The choices available to the consumer to choose the right sunglasses,marked category,you can and Motozukuko ?? to usage and location.Impact resistanceEXPRESS,in order to have a protective function of the lens,or conforming to ANSI (American standard),must be able to withstand the high 1.27 meters impact without fragmenting the 16 g bowl freefall Hmm.Index is the minimum requirement in order to have a protective glasses.Lens has the explicit protection,but if it passes this standard,it is considered safe wearing the eyeglasses,the unsafe situation may mislead consumers,accident In the case of,it will harm the eye of directly to consumers.10 of the advantages and disadvantages Advantages: 1,decorative appearance,2,obstruction eye defect,3,burden,4 of glare,you can reduce the ciliary muscle of the eye under the block harmful lightWallace wearing sunglassesWallace wearing sunglassesLine,4,protect your eyes from injury; 5,wear sunglasses,face looks thin,this theory has been proposed by Olsen sisters,her theory is very simple,beauty,love thin woman Let's always look at "intentionally" they are small,lean,and wearing sunglasses on top of the big nose,his face,in this way to create a visual effect of "face lift",to look small Become.Disadvantages: 1,and not a quality defect in the lens,the anti-radiation,anti-UV,an increase in not easy ear damaging the eyes,long nose,wearing,leaving scars in 3 helps two It worked the biased amount of common sense that it is not possible to achieve the effect Cloudy vulnerable to inappropriate eyewear sunglasses,you do not need to wear sunglasses in the dimly lit conditions such as indoors.No matter,regardless,people with opportunity,SunglassesSunglassesAlso,inevitably cause fatigue and eye muscle tension,sunglasses to increase the burden of eye coordination,visual loss,blurred vision,in the evening even if you wear the case of severe,and in the movie and in the evening sunlight of strength,TV,symptoms such as dizziness.Perfect babies and children for the development of the visual system is not should not wear sunglasses.In addition to the glass sunglasses,wear of clarity not high wear of other sunglasses lens material,when it should be replaced,user should always pay attention to the sunglasses of the surface.Benefits sunglassesSunglasses,behind you is an active permit in the sunshine,good free.In fact,sunglasses,sunlight resist,because it does not allow you to stop the pollution damage,so that the face is not Oh embarrassment,carefully caution should be exercised.Maintenance methods,such as sunglasses general maintenance,cleaning,collapse glasses,storage must be a habit.However,sunglasses and accidentally wound is often Tuotuo orange,there are some small details in order to do so to remind you.Deposited contaminated sunglasses,it is easy to scratch damage,please do not use nails to pull surface.Many people easily movement of the head when it was able to do a lot in order to avoid the body salmon and crash,neck or pocket,please do not wear sunglasses when you hang up the range.Or is placed in a bag that do not have someone,after you still hard glasses case,then placed may be because in the bag,the lens is key,comb,wear copper and other small things,or a lipstick and other cosmetics It is caught,and then run collision sharp ones.<br/><a href="" title="Wholesale Bracelets">Wholesale Bracelets</a> <br/><a href="" title="Chelsea">Michael Kors Chelsea</a> <br/><a href="" title="Air Jordan 14 Retro">Air Jordan 14 Retro</a> <br/><a href="" title="Miniature">Miniature</a> <br/><a href="">Monster Energy Fashion Hats Store</a> <br/><a href="" title="Authentic Adidas Yeezy">Authentic Adidas Yeezy</a>

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