In the latest issue of "Chemical Communications" of this research

In order to avoid the lens irritation sun the actual facts rather than a deeper color.Deep along lens color,so wear cut is enlarged pupil,if there is no external filtering and Britain,damage tolerance of the eye will be even greater.It is in the national quality standards for sunglasses: it is not possible UV through 95 or more of the cage;,should light transmittance of about 5 percent to 30 percent,lens between the two countries completely different colors of uniforms,the whole is 5% or less,a beautiful quite comfortable deformed according to an object.9 References Currently,off ?? ~O To electrochromic lenses that are used in car windows,sunglasses,visual display assembly (visual display unit) to the basic composition is a halogen material.Japanese researchers,this is,in the lens of the halogen-free environment this new ecosystem (chlorine,bromine,iodine) to destroy the composition of the material (ecoglass),have developed a sense of recycling lens of light energy,In the latest issue of "Chemical Communications" of this research it has been published.Photographic film,such as,as in the sensitive lenses to light,now,silver and halogen-containing compounds in the lens,such as silver iodide,since the dark.To provide some electronic halide ions including enough energy to perform the movement,ultraviolet radiation of the sun,combined with the silver ions to these electron neutral atoms will be metallic silver.After they were gathered to become a small particle,a silver atom,the light is scattered off the left lens becomes darker.However,this method,while it is necessary to make others can be restored through a single heating step,a transparent UV after several sunglasses are reversible away to recover within a few minutes.In each response of the process,the electronic because to again generate a metal cluster in silver ions from the silver atoms.Generating a halogen and carbon-based molecules of the toxic and carcinogenic compounds were added silver ions in the form of silver nitrate,in order to replace the halogen,Industrial Technology Research Institute of Osaka vector (AIST) 泽哲 husband (Yazawa Tetsuo) complete mixing of the standard lens material his colleagues will react with.It is heated at 500 ℃ 15 minutes,the silver nitrate lenses made transparent for UV light when clear was resumed as a yellow lens,changes to yellow.
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