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border="0" class="vm" alt="" /> 一个光学基础的问题 实验中碰到了 知道的帮我解答一下: JOSAA2003-Optical aberrations of intraocular lenses measured in vivo and in vitro.pdf</h1> </div> <div class="bm_c xld"> <div class="attbox_right_ad"> </div> <div class="attbox_left"> <ul> <li>打开方式: Adobe Reader 9.0</li> <li>资料大小: 1015.09 KB</li> <li>下载次数: 7</li> <li>上传会员: <a href="attachcenter-list.html?uid=60876" target="_blank" style="color:#FF9900">ELLA10086</a></li> <li>上传时间: 2008-07-02</li> <li>本站网址: <a href="http://group.oecr.com/">group.oecr.com</a></li> <li><a href="http://bbs.oecr.com/thread-71936-1-1.html" target="_blank">查看资料所在的主题</a></li> <li><a href="http://bbs.oecr.com/forum.php?mod=attachment&aid=Mjg1MjF8MjM2ODQxNWJ8MTc2NjAxODE3MHwwfDA%3D" target="_blank" style="color:#FF9900">下载资料 </a></li> </ul> </div> <DIV style="CLEAR: both"></DIV> <b>欢迎下载本站资料，下载前请先登录您的社区账号。</b></div> </div> <DIV style="CLEAR: both"></DIV> <div class="bm cl" style="padding:5px;"> <p><button type="submit" class="pn vm" onclick="setCopy('http://group.oecr.com/plugin.php?id=attachcenter:page&aid=28521', '链接已经复制到剪贴板');" type="submit"> <em>复制链接推荐给好友</em></button> <input type="text" class="px vm" onclick="this.select();setCopy(this.value, '链接已经复制到剪贴板');" value="http://group.oecr.com/plugin.php?id=attachcenter:page&aid=28521" size="50" /></p> </div> <div class="bm"> <div class="bm_c xld"> <b>一个光学基础的问题 实验中碰到了 知道的帮我解答一下:</b><div class="postmsg">我现在做的实验是搭建人眼的光路，目的是测人眼晶状体的MTF，其中一个任务是不同颜色光透过不同晶状体的色差比较。<br /> 我们是模仿国外的文献，现在有个问题很迷惑，不知道怎么做下去。<br /> 国外的文献中是用一个照相机镜头（f=28mm）来代替角膜，后面的部分也做成一个现成的装置，并非通过透镜组搭成光路。但是整个系统都是ZEMAX里模拟过的。照相机镜头的RMS已知。<br /> 因为我们水平有限，就想搭一个光路模型来代替。因为角膜屈光度43D，我们想用一个屈光度43D的双胶合透镜来代替角膜。后面的部分就是光路经一组透镜，经过一片人工晶状体到CCD，接收后测MTF 。<br /> 我的问题是：角膜根据D/f，f=23.2mm 通光口径D就很小。我们之前有上网订购过类似焦距的双胶合透镜，镜片也只有1cm大小。 这么小的镜片没法做实验。如果是用实验室已有的透镜来组合成想要的焦距，我觉得角膜部分又不能消色差。 可以找到类似照相机镜头，但镜头的镜片数据无法知道，没法在软件中模拟。<br /> 因为角膜部分我们都没法确定，后面的光路也只是简单的搭建，能出来MTF的图像就好。我们还没有考虑角膜后面光路怎样搭建才能=人眼真实的像差。整个光路也没有计算或模拟过。<br /> 我写的很混乱，不知道大家理解了没有？就是我们的实验是参照国外的，但是国外的是模拟好了后做成了现成的装置。而我们不知道代替角膜的透镜应该怎么选才是最好的，我们实验的目的是测晶状体的色差和MTF，就觉得搭的光路也应该是计算过，代表角膜的透镜像差也应该是与人眼相符合。可是我们只会搭简单的光路，不会考虑光路中的像差，所以也觉得我们的光路是个四不像，想和真实人眼像差上尽量符合，却不会<br /> <br /> [<i> 本帖最后由 ELLA10086 于 2008-7-2 17:13 编辑 </i>]</div> <div class="postmsg">先谢过 <img src="static/image/smiley/default/em31.gif" smilieid="60" border="0" alt="" /> 真的不懂 比较笨的学生 帮我一下啦</div> <div class="postmsg">你把国外的文献贴出来，大家一起考虑呀</div> <div class="postmsg">由于焦距是23.2，按照D/f'计算的口径是比较小，有个老师告诉我可以选用大口径的广角镜头。 因为我们原来是想 激光器发出的光 经模拟角膜 —晶状体— CCD接收 测色差时打算让 各种颜色的LED发出的光 经模拟角膜 -晶状体-CCD接收<br /> 现在没法做成一个装置，所以我想问：广角镜头可不可以放在光路中？ 就是激光器发出的光——广角镜头——晶状体——CCD 或者各种颜色的LED发出的光——广角镜头——晶状体——CCD</div> <div class="postmsg"><img src="static/image/smiley/Tiger/05.gif" smilieid="143" border="0" alt="" /><img src="static/image/smiley/Tiger/05.gif" smilieid="143" border="0" alt="" /><img src="static/image/smiley/Tiger/05.gif" smilieid="143" border="0" alt="" /><img src="static/image/smiley/Tiger/05.gif" smilieid="143" 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