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type="text/css"></style> <div id="ct" class="ct2 wp cl"> <div class="mn"> <div class="bm_haa cl"> <div class="bm_h cl"> <a href="http://www.oecr.com/portal.php?mod=rss&catid=61" class="y xi2 rss" target="_blank" title="RSS">订阅</a><h1 class="xs2">文章</h1> </div></div> <div class="kjkjb"> <div class="bm vw" style="margin-bottom:0;"> <div class="h hm"> <div class="zxtoux"><img src="http://www.oecr.com/uc_server/avatar.php?uid=54876&size=small" /></div> <h1 class="ph">光学镜片镀膜技术 </h1> <p class="xg1"> 时间：2018-8-17 14:58<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1817)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=6954&idtype=aid" title="查看全部评论"><em id="_commentnum">5</em></a></p> <div class="zxfb" ><a href="http://www.oecr.com/portal.php?mod=rss&catid=61" class="y xi2 rss" target="_blank" title="RSS">订阅</a></div> </div> <!--[diy=diysummarytop]--><div id="diysummarytop" class="area"></div><!--[/diy]--> <div class="s"> <div class="ss"><div><span>导读： </span>很多光学企业都会有对镜片进行镀膜的工作，镀膜有什么方法和技巧？请各位光学人看看这篇文章！</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div> 很多光学<a href="http://b.oecr.com/company" target="_blank" class="relatedlink">企业</a>都会有对镜片进行<a href="http://opticalfilm.oecr.com" target="_blank" class="relatedlink">镀膜</a>的工作，镀膜有什么方法和技巧？请各位光学人看看这篇文章！</div><div><br></div><div> 镜片<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>分类</div><div><br></div><div> 玻璃镜片包括光学玻璃镜片及高折射率镜片（即通常所称的超薄片），其硬度高、耐磨性能好，一般其质量及各项参数不会随时间而改变，但是玻璃镜片的抗冲击性及重量方面要略逊于树脂镜片。</div><div><br></div><div> 树脂镜片一般要比玻璃镜片轻得多，且抗冲击性能要优于玻璃片，防紫外线能力强，但其表面硬度较低，比较容易被擦伤。树脂镜片及镀膜镜片由于其特性较软，所以平时应注意不要让镜面直接接触硬物，擦洗时最好先用清水（或掺合少量洗洁精）清洗，然后用专用试布或优质棉纸吸干眼镜片上的水滴。此外，在环境条件较差的地方应慎用镀膜镜片，以免沾上污物难以清洗。</div><div><br></div><div> 宇宙（PC）镜片：折射率高，牢固，但易磨损.多数使用于小孩子的眼镜片，无框架的装配或运动员的护眼罩。</div><div><br></div><div> 镜片镀膜后有哪些优点？</div><div><br></div><div> 镀膜镜片可以降低镜片表面的反射光，视物清楚，减少镜面反射光，增加了光线透过率，也解决戴眼镜在强光下照像的难题，增加美感。镀膜眼镜能防止紫外线、红外线、X线对视力的伤害。配戴镀膜眼镜不易疲劳。对荧光屏前工作人员的视力可受到保护。</div><div><br></div><div> 镀膜树脂镜片除应避免划碰高温外，亦应避免酸类油烟等侵蚀，如在日常生活中最好不要戴镜下厨，尤其是通风不好油烟大时；同时亦不能戴（带）镜进（近）热水淋浴环境，平常临时放置时应将镜片凸面向上，随身携带时应将眼镜放入盒内，不要随便放入口袋中或挂包中，那样极易使膜层擦伤。</div><div><br></div><div> 镜片的使用寿命为多久？</div><div><br></div><div> 如果镜片没有划痕，可以一直使用么？答案是不可以。树脂镜片的<a href="http://optics.oecr.com" target="_blank" class="relatedlink">加工</a>是液化单体高温或紫外线固化而成，随着使用周期变长，环境和温度的变化，镜片表面的膜层和镜片本身的材料都会发生<a href="http://theory.oecr.com" target="_blank" class="relatedlink">物理</a>变化，膜层在显微镜下看会变的凹凸不平，材料本身局部的光度和验配的时候已产生差异，导致光线散射，舒适度降低，使用时间长会有眼睛干涩、发胀的症状，这个时候，就需要更换镜片了。时间大概在2年到3年左右。</div><div><br></div><div> 球面镜片与非球面镜片</div><div><br></div><div> 传统的球面镜片，不仅镜片较厚，而且透过镜片周边看事物有扭曲、变形等现象发生，称为像差。透过球面镜片观察配戴者，也能够明显发现其脸部轮廓的变形现象。非球面镜片不仅使镜片的中心厚度和边缘厚度减少，使镜片更薄，更消除周边像差，给配戴者自然视力.对于视力度数高的消费者，选择非球面镜片可能更加合适。</div><div><br></div><div> 同一材料、同一度数的球面与非球面相比，非球面镜片更平、更薄、视物更逼真、更自然舒适。如果对着灯管观看镜片镀膜形状，一般是非球面镜片反射的灯管较直（高屈光度镜片除外）；而球面镜片由于表面各部位曲率不同，灯管形状弯曲度较大。</div><div><br></div><div> 光学镜片镀膜技术及发展</div><div><br></div><div> 无论是无机材料还是有机材料制成的眼镜片，在日常的使用中，由于与灰尘或砂砾（氧化硅）的摩擦都会造成镜片磨损，在镜片表面产生划痕。与玻璃片相比，</div><div><br></div><div> 有机材料制成的硬性度比较低，更易产生划痕。通过显微镜，我们可以观察到镜片表面的划痕主要分为二种，一是由于砂砾产生的划痕，浅而细小，戴镜者不容易察觉；另一种是由较大砂砾产生的划痕，深且周边粗糙，处于中心区域则会影响视力。</div><div><br></div><div> （1）技术特征</div><div><br></div><div> 第一代抗磨损膜技术</div><div><br></div><div> 抗磨损膜始于20世纪70年代初，当时认为玻璃镜片不易磨制是因为其硬度高，而有机镜片则太软所以容易磨损。因此将石英材料于真空条件下镀在有机镜片表面，形成一层非常硬的抗磨损膜，但由于其热胀系数与片基材料的不匹配，很容易脱膜和膜层脆裂，因此抗磨损效果不理想。</div><div><br></div><div> 第二代抗磨损膜技术</div><div><br></div><div> 20世纪80年代以后，研究人员从<a href="http://theory.oecr.com" target="_blank" class="relatedlink">理论</a>上发现磨损产生的机理不仅仅与硬度相关，膜层材料具有“硬度/形变”的双重特性，即有些材料的硬度较高，但变形较小，而有些材料硬度较低，但变形较大。第二代的抗磨损膜技术就是通过浸泡<a href="http://optics.oecr.com" target="_blank" class="relatedlink">工艺</a>法在有机镜片的表面镀上一种硬度高且不易脆裂的材料。</div><div><br></div><div> 第三代抗磨损膜技术</div><div><br></div><div> 第三代的抗磨损膜技术是20世纪90年代以后发展起来的，主要是为了解决有机镜片镀上减反射膜层后的耐磨性问题。由于有机镜片片基的硬度和减反射膜层的硬度有很大的差别，新的理论认为在两者之间需要有一层抗磨损膜层，使镜片在受到砂砾磨擦时能起缓冲作用，并而不容易产生划痕。第三代抗磨损膜层材料的硬度介于减反射膜和镜片片基的硬度之间，其磨擦系数低且不易脆裂。</div><div><br></div><div> 第四代抗磨损膜技术</div><div><br></div><div> 第四代的抗膜技术是采用了硅原子，例如法国依视路公司的帝镀斯（TITUS）加硬液中既含有有机基质，又含有包括硅元素的无机超微粒物，使抗磨损膜具备韧性的同时又提高了硬度。现代的镀抗磨损膜技术最主要的是采用浸泡法，即镜片经过多道清洗后，浸入加硬液中，一定时间后，以一定的速度提起。这一速度与加硬液的黏度有关，并对抗磨损膜层的厚度起决定作用。提起后在100°C左右的烘箱中聚合4——5小时，镀层厚约3——5微米。</div><div><br></div><div> （2）<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测试</a>方法</div><div><br></div><div> 判断和测试抗磨损膜耐磨性的最根本的方法是临床使用，让戴镜者配戴一段时间，然后用显微镜观察并比镜片的磨损情况。当然，这通常是在这一新技术正式推广前所采用的方法，目前我们常用的较迅速、直观的测试方法是：</div><div><br></div><div> 磨砂试验</div><div><br></div><div> 将镜片置于盛有砂砾的宣传品内（规定了砂砾的粒度和硬度)，在一定的控制下作来回磨擦。结束后用雾度计测试镜片磨擦前后的光线漫反射量，并且与标准镜片作比较。</div><div><br></div><div> 钢丝绒试验</div><div><br></div><div> 用一种规定的钢丝绒，在一定的压力和速度下，在镜片表面上磨擦一珲的次数，然后用雾度计测试镜片磨擦前后的光线漫反射量，并且与标准镜片作比较。当然，我们也可以手工操作，对二片镜片用同样的压力磨擦同样的次数，然后用肉眼观察和比较。</div><div><br></div><div> 上述两种测试方法的结果与戴镜者长期配戴的临床结果比较接近。</div><div><br></div><div> 减反射膜和抗磨损膜的关系</div><div><br></div><div> 镜片表面的减反射膜层是一种非常薄的无机金属氧化物材料（厚度低于1微米），硬且脆。当镀于玻璃镜片上时，由于片基比较硬，砂砾在其上面划过，膜层相对不容易产生划痕；但是减反射膜镀于有机镜片上时，由于片基较软，砂砾在膜层上划过，膜层很容易产生划痕。</div><div><br></div><div> 因此有机镜片在镀减反射膜前必须要镀抗磨损膜，而且两种膜层的硬度必须相匹配。</div><div><br></div><div> 为方便广大光电人能够交流行业，<a href="http://b.oecr.com/sell" target="_blank" class="relatedlink">产品</a>，技术等经验，光电<a href="http://news.oecr.com" target="_blank" class="relatedlink">资讯</a>QQ群为大家提供了一个交流的平台，群里面有免费的<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>版光学书籍和论文<a href="http://theory.oecr.com" target="_blank" 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c="1">ericfan626</a> <span class="xg1 xw0">2018-8-17 18:58</span> </dt> <dd>大家要多交流哦</dd> </dl><a name="comment_anchor_19004"></a> <dl id="comment_19004_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(19004, '6954');">引用</a> </span> <a href="http://club.oecr.com/space-uid-95134.html" class="xi2 xw1" c="1">ha2103</a> <span class="xg1 xw0">2018-8-17 15:58</span> </dt> <dd>光学测量好难啊。</dd> </dl><a name="comment_anchor_19003"></a> <dl id="comment_19003_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(19003, '6954');">引用</a> </span> <a href="http://club.oecr.com/space-uid-127329.html" class="xi2 xw1" c="1">zfzfzf_1977</a> <span class="xg1 xw0">2018-8-17 15:28</span> </dt> <dd>累死了，来看帖。</dd> </dl><a name="comment_anchor_19002"></a> <dl id="comment_19002_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(19002, '6954');">引用</a> </span> <a href="http://club.oecr.com/space-uid-84123.html" class="xi2 xw1" c="1">cine0611</a> <span class="xg1 xw0">2018-8-17 14:58</span> </dt> <dd>这也没什么吧。</dd> </dl></div> </div> <!--[diy=diycontentcomment]--><div id="diycontentcomment" class="area"></div><!--[/diy]--> </div> <div class="sd pph"> <div class="drag"> <!--[diy=diyrighttop]--><div id="diyrighttop" class="area"><div id="frameG07e2m" class="sy_ltdr frame move-span cl frame-1"><div class="frame-title title"><span class="titletext">社区成员推荐</span></div><div id="frameG07e2m_left" class="column frame-1-c"><div id="frameG07e2m_left_temp" class="move-span temp"></div><div id="portal_block_925" class="cl_block_bm block move-span"><div id="portal_block_925_content" class="dxb_bc"><div class="module cl ml mls"> <ul><li> <a href="http://club.oecr.com/space-uid-7522.html" c="1" target="_blank"><img 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