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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">自聚焦透镜(Grin Lens)简介 </h1> <p class="xg1"> 时间：2016-8-29 09:54<a class="zz" href="home.php?mod=space&uid=54876">作者：update</a> 阅读<em id="_viewnum">(1788)</em> 评论: <a href="http://www.oecr.com/portal.php?mod=comment&id=4781&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>自聚焦透镜(Grin Lens)的特点：当光线在空气中传播当遇到不同介质时，由于介质的折射率不同会改变其传播方向。传统的透镜成像是通过控制透镜表面的曲率，利用产生的光程差使光线汇聚成一点。自聚焦透镜同普通透镜的 ...</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><b>自聚焦透镜(Grin Lens)的特点</b>：<span style="line-height: 1.8em;">当光线在空气中传播当遇到不同介质时，由于介质的折射率不同会改变其传播方向。传统的透镜成像是通过控制透镜表面的曲率，利用产生的光程差使光线汇聚成一点。</span></div><div><span style="line-height: 1.8em;"><br></span></div><div>自聚焦透镜同普通透镜的区别在于，自聚焦透镜<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>能够使沿轴向传输的光产生折射，并使折射率的分布沿径向逐渐减小，从而实现出射光线被平滑且连续的汇聚到一点。</div><div style="text-align: center;"><p><a href="data/attachment/portal/201608/29/094424yh1shydddhd5d125.jpg" target="_blank"><img src="data/attachment/portal/201608/29/094424yh1shydddhd5d125.jpg"></a></p></div><div style="text-align: center;">图1 普通透镜光轨迹示意图</div><div style="text-align: center;"><p><a href="data/attachment/portal/201608/29/094424biqbzeb931lb869p.jpg" target="_blank"><img src="data/attachment/portal/201608/29/094424biqbzeb931lb869p.jpg"></a></p></div><div style="text-align: center;">图2 自聚焦透镜轨迹示意图</div><div style="text-align: center;"><p><a href="data/attachment/portal/201608/29/094424yj6ndaej8njzjizn.jpg" target="_blank"><img src="data/attachment/portal/201608/29/094424yj6ndaej8njzjizn.jpg"></a></p></div><div style="text-align: center;">图3 自聚焦透镜折射率分布曲线</div><div style="text-align: center;"><p><a href="data/attachment/portal/201608/29/094425gkvv7kk5vla5vpc5.jpg" target="_blank"><img src="data/attachment/portal/201608/29/094425gkvv7kk5vla5vpc5.jpg"></a></p></div><div style="text-align: center;">公式（1）中：No --表示自聚焦透镜的中心折射率</div><div>r --表示自聚焦透镜的半径</div><div>A --表示自聚焦透镜的折射率分布常数</div><div><br></div><div 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href="javascript:;" onclick="portal_comment_requote(8088, '4781');">引用</a> </span> <a href="http://club.oecr.com/space-uid-46966.html" class="xi2 xw1" c="1">meizhongliang</a> <span class="xg1 xw0">2016-8-30 08:12</span> </dt> <dd>光电工程师社区 不错</dd> </dl><a name="comment_anchor_8087"></a> <dl id="comment_8087_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(8087, '4781');">引用</a> </span> <a href="http://club.oecr.com/space-uid-65018.html" class="xi2 xw1" c="1">jiulongx</a> <span class="xg1 xw0">2016-8-30 07:42</span> </dt> <dd>确实还可以。</dd> </dl><a name="comment_anchor_8084"></a> <dl id="comment_8084_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(8084, '4781');">引用</a> </span> <a href="http://club.oecr.com/space-uid-23780.html" class="xi2 xw1" c="1">rocky</a> <span class="xg1 xw0">2016-8-30 06:12</span> </dt> <dd>楼主呀，，，您太有才了。。。</dd> 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