偏光鏡是根據光線的偏振原理制造。是利用偏振光的特性,以偏振鏡片把非金屬物體、水面等反光過濾消除的透鏡。偏振鏡可以消除反光及使色彩更鮮艷,一些電影甚至全片用偏振鏡拍攝,使畫面有更濃艷的色彩。當陽光投射在路面或水面上時,直接刺激眼睛,使眼睛感到眩目、疲勞、不能持久視物。特別是當您在駕駛汽車、進行戶外娛樂活動時,不僅影響我們的工作和娛樂情緒,甚至影響我們對物象的判斷力而造成危險;長期經受陽光的直接照射,還會導致視力的急速下降,形成近視、遠視、散光或白內障等。這時候偏光鏡的作用就體現了。
偏(pian)(pian)光(guang)(guang)鏡(jing)片(pian)是采用和隱形眼(yan)鏡(jing)一樣輕巧精密的(de)(de)(de)(de)合(he)成(cheng)(cheng)樹脂(zhi)制成(cheng)(cheng),制成(cheng)(cheng)后,可(ke)濾去因水面潮濕或(huo)(huo)陽(yang)(yang)光(guang)(guang)照射下(xia)的(de)(de)(de)(de)馬路反光(guang)(guang)。主(zhu)要優點:輕,能(neng)濾去99%刺(ci)眼(yan)的(de)(de)(de)(de)反射亂光(guang)(guang),99%的(de)(de)(de)(de)有(you)(you)害紫外(wai)光(guang)(guang),不易碎(sui)。為了(le)過濾太(tai)(tai)陽(yang)(yang)照在(zai)水面、陸地(di)或(huo)(huo)雪(xue)地(di)上的(de)(de)(de)(de)平等方向的(de)(de)(de)(de)刺(ci)眼(yan)光(guang)(guang)線(xian)(xian)(xian),在(zai)鏡(jing)片(pian)上加(jia)入垂直向的(de)(de)(de)(de)特殊涂料(liao),就(jiu)稱為偏(pian)(pian)光(guang)(guang)鏡(jing)片(pian)。最(zui)適合(he)戶外(wai)運動(dong)(例如:駕(jia)駛、海上活動(dong)、滑雪(xue)或(huo)(huo)釣(diao)魚(yu))時使用。所(suo)以偏(pian)(pian)光(guang)(guang)太(tai)(tai)陽(yang)(yang)鏡(jing)可(ke)根據用途一般可(ke)以分為:滑雪(xue)鏡(jing),釣(diao)魚(yu)鏡(jing),偏(pian)(pian)光(guang)(guang)駕(jia)駛鏡(jing),戶外(wai)運動(dong)鏡(jing),高爾(er)夫(fu)眼(yan)鏡(jing)。由于偏(pian)(pian)光(guang)(guang)太(tai)(tai)陽(yang)(yang)鏡(jing)的(de)(de)(de)(de)首要功能(neng)是防(fang)紫外(wai)線(xian)(xian)(xian)和過濾偏(pian)(pian)振光(guang)(guang),好的(de)(de)(de)(de)偏(pian)(pian)光(guang)(guang)太(tai)(tai)陽(yang)(yang)鏡(jing)鏡(jing)片(pian)可(ke)以阻擋(dang)(dang)90%以上紫外(wai)線(xian)(xian)(xian)的(de)(de)(de)(de)穿透(tou),請選擇(ze)帶有(you)(you)“UV400”最(zui)佳阻隔紫外(wai)線(xian)(xian)(xian)標識的(de)(de)(de)(de)偏(pian)(pian)光(guang)(guang)太(tai)(tai)陽(yang)(yang)鏡(jing);如果佩戴了(le)不能(neng)阻擋(dang)(dang)紫外(wai)線(xian)(xian)(xian)和偏(pian)(pian)振濾光(guang)(guang)功能(neng)的(de)(de)(de)(de)劣質偏(pian)(pian)光(guang)(guang)太(tai)(tai)陽(yang)(yang)鏡(jing),比(bi)如深色的(de)(de)(de)(de)太(tai)(tai)陽(yang)(yang)鏡(jing),隨著進(jin)入人眼(yan)的(de)(de)(de)(de)光(guang)(guang)線(xian)(xian)(xian)變暗,人眼(yan)的(de)(de)(de)(de)瞳孔會變大,則進(jin)入眼(yan)睛的(de)(de)(de)(de)紫外(wai)線(xian)(xian)(xian)增加(jia),增加(jia)對人眼(yan)的(de)(de)(de)(de)傷害。