Just be able to cut off 30% of the light-shielding is not enoug
Just be able to cut off 30% of the light-shielding is not enoug
[1]Safety solutions of night driving1 normal sunglasses and the mirror: You only have to wear during the day,appropriate,night driving seriously vision (national standard night driving glasses light transmittance shall not be less of> 75%),average transmittance of less than standard sunglasses It can affect the rate.[1]No driving mirror of pale yellow light barrier effectBlocks the driving mirror ineffective,pale yellow light (2)2 normal pale yellow gradient night and all-weather driving mirror driving mirror:;,the same weather driving mirror can be reduced glare,but darkened affect safety vision of the road,the normal pale yellow of the night vision goggles is the only 20? Just be able to cut off 30% of the light-shielding is not enough night driving glasses,does not meet the national standards [1].3 light barrier,bar,night vision treasure dimming: driver of the field of vision,form vision blind of some of the car to block glass front Place further object of the dimmer before,and the vehicle of such obstacles .They headaches,over a period of dizziness and nausea,time to cause side effects,the driver's eyes always shaking bumps,and not fragile secure some products [1].Wearing night vision goggles pair of transmittance were affected of the main lens,but you need to> 75% of the observation of the road,a pair of good night driving mirror,other cars on top of the 80% should be able to stop the light,you will be able to ensure good driving driver road safety.[1]22 fashion of process Sunglasses,and or first appeared,you shut off the sunlight.1752,JamesAyscough first green or blue of the spectacle lens manufacturer.Although he revered ancestor sunglasses after,he was able to improve the only human vision problems and become such a design.According to the 12th century,worn by official great people of China,Liu Chibukku "Guiqianzhi" record,"sunglasses",this "sunglasses",the other of which are manufactured in smoky topaz so as not to block the glare of the sun Although people so as not to see his reaction,when I heard the confession.In addition,sunglasses at the start of the function of the present invention and shadow,I think a very different way.With the rise of the second innovation,shading and eye function more clearly sunglasses.The manufacture and use of the car of aircraft,sunglasses,will be that it has entered into public view.
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