As the lens becomes dark,new molecular structure,will absorb some

Locate the reflecting su***ce,in order to observe the su***ce,through the lens,it took sunglasses.Slowly quarter turn sunglasses,decrease or increase and observe whether or not to reflect the glare.If you are a sunglasses polarized sunglasses,a significant reduction in glare appears.When mirroring below exposed to sunlight sunglasses,color is called the sunglasses and prescription glasses color glasses and darker.Lens principle of special chemical reaction depends on the UV.Several million of the molecules in the lens (for example,such as silver or silver halide chloride) contains a specific substance.If no ultraviolet ray is not present,visible light,can be transmitted through these molecules,it is the visible portion of a typical artificial light.When exposed to ultraviolet sunlight,but so that their shape is changed,these elements will pass through the chemical process.As the lens becomes dark,new molecular structure,will absorb some of the visible light.The number of shape changes of the molecule will alter the UV intensity change.Test results of polarized sunglassesTest results of polarized sunglassesSunglassesSunglassesIf you leave the ultraviolet light,in case you come indoors,it is made to the corresponding chemical change.When suddenly left the UV,thus these molecules can quickly lose the absorption characteristics of the light,it will be restored to its original structure.It is,or will happen the speed of the whole process changes whether in very quickly to reverse a positive change.In the code ?? training,Inc.1960 production PhotoBrown and PhotoGrey series,the lens is made of glass,the molecule will be distributed throughout the evenly lens.If you use this method with prescription glasses,since the thickness of different parts of the location prescription lens color is further darkened may vary slightly thicker,problem becomes clear.However,the widespread use of plastic lens,it has developed a new approach.Plastic lenses,by being immersed in a chemical bath,the color molecules are absorbed into the depth of the plastic lens of approximately 150 microns.This new method,the coating process,the thickness of the color molecules only 5 microns,much better than a simple coating process that it can not provide enough molecules to darken the lens.Specular reflectionReflective lens sunglasses,can be reflected as a mirror.Coated with a very thin reflective coating on the lens - so this layer is a very thin coating,it is called a half-plane.The term reflective elements "half" is coming from the top of the lens is very sparse,the number is about half of the lens becomes opaque number of mirrors of the molecule.At the molecular level,the reflective elements are uniformly uniform film layer and is dispersed on the su***ce of the lens to form a half of the area of ??the covered lens film.
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