Forum Damenuhren: it is possible to eliminate UV radiation and has good UV coa


it is possible to eliminate UV radiation and has good UV coa

01.12.2017 23:53
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it is possible to eliminate UV radiation and has good UV coa
Anti-reflective coating is also the front face of the refractive lens,and are applied to several sunglasses to eliminate glare produced by the reflection lens and a "hot spot"UV coatingOne of several causes of the most serious eye disease,is as follows.Ultraviolet light.
Nike Air MaxUV A,UV B: according to the frequency and wavelength,UV is classified into two categoriesAs the protection of the natural eye,the eye of the people of the cornea,the majority it will be able to absorb,however,still some of the UV-A of all of the UV-B and UV A is,to reach the eye of the lens There is a trout.
new balance mujer 574May cause cataracts,a long time to absorb ultraviolet light,a small amount of ultraviolet radiation reaching the retina via the cornea A,can cause macular degeneration,macular degeneration,over 65 of the elderly,it is a major cause of the resulting blindness.Long-term exposure to strong ultraviolet radiation,in burns of the retina,can cause eye cancer or chemical keratitis.This is,in many cases,in the winter of snow outside of a sunny day,in many cases,the glare of the snow surface reflecting the sun,which is called snow blindness,occurs.

nike flyknit lunar multi colorSunglasses,your sunglasses must ensure that filtering 100% of the two types of ultraviolet radiation,it is possible to eliminate UV radiation and has good UV coating.Sunglasses sunglasses of the label will be able to provide UV protection,you need to indicate the extent to which requires the protection of 100%.9 Technical Specifications Vertex deviationThe nominal value of the vertex sunglasses 0.00D,

Nike Air Max USAbe assembled lens manufacturing of lenses and frames of deviation or mismatch,and you must have a possibility to generate a vertexSunglassesSunglassesDeviation (ie the apex positive or negative),beyond a certain range,may wearer feel visual distortion,it will affect the health of seriously the wearer's vision.GB10810.1 "spectacle lenses - Part 1: a single light multifocal lens" Table 1 of the national standards of the requirements corresponding to the spherical vertex tolerance of ± 0.12D; cylinder vertex degree of tolerance of ± 0.09D.
air jordans PrismPrism sunglasses if 0.00Δ,the lens has a prism,when it exceeds the standard tolerances,it may lead to binocular vision,there is a need to generate a visual shift focus 1,or non- sudden sense of equilibrium,were adjusted to a No ocular and optic nerve disorder in increased wear,it can either lead to severe neurological control disorders,it can be generated perspective.Table 4 of the prism tolerance is 0.25Δ GB10810.1,I will more.Light transmittance (τV)For bright colors of sunglasses,> 40% of light transmittance,solar mirror,8%?
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For 40% of the light transmittance range.Light transmittance project is an important indicator of the functional analysis of sunglasses.Although the European and international standards will be divided into five categories,the mirror of the sun,the bright colors of sunglasses,and a dedicated sunglasses: The current standard press of China,this sunglasses,divided into the following three categories: It is.Another category uses a different sunglasses.
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