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</div> <div class="postmsg">用MTF优化,首先要满足一定的相差条件或者加大采样数,默认值为1,可以增加为2,3,4依次尝试.1,2,3,4分别对应MTF计算中的32*32,64*64,128*128,256*256....................</div> <div class="postmsg"><br /> <br /> 这个我我早已试过，效果最后不很理想。再捉摸一下<br /> <br /> <br /> <br /> <br /> </div> <div class="postmsg"><br /> <br /> 可能是原来的系统太差，或其他原因，导致你所要求的面成像质量很差，或根本不能叫成像，这个时候当然无法算出值<br /> <br /> <br /> <br /> <br /> </div> <div class="postmsg"><br /> <br /> 关键是只有一个变量，即第三表面的厚度（空气厚度）。其余都是不变了，连像面到最后一个镜片的距离都是固定的！大家看有啥办法？（假设是这个光学系统是可以被优化好的）<br /> <br /> <br /> <br /> <br /> </div> <div class="postmsg"><br /> <br /> 把东西传上来，大家试一下才能找方法呀。。。。。。<br /> <br /> <br /> <br /> <br /> </div> <div class="postmsg">用OSLO，很容易搞定的，没有这种现象</div> <div class="postmsg">现在觉得光学设计好难啊<br /> 天天郁闷中</div> <div class="postmsg">我现在把系统传上来,大家看看有没有办法!敬请赐教</div> <div class="postmsg"><img src="static/image/smiley/default/sweat.gif" smilieid="10" border="0" alt="" /><br /> 你这个系统设定的像距和实际像距差太多了</div> <div class="postmsg"><div class="quote"><blockquote>原帖由 <i>tommy66</i> 于 2007-10-9 09:19 发表 <a href="http://bbs.oecr.com/redirect.php?goto=findpost&pid=380378&ptid=59259" target="_blank"><img id="aimg_GvsDW" onclick="zoom(this, this.src, 0, 0, 0)" class="zoom" src="static/image/common/back.gif" onmouseover="img_onmouseoverfunc(this)" onload="thumbImg(this)" border="0" alt="" /></a><br /> 我现在把系统传上来,大家看看有没有办法!敬请赐教 </blockquote></div><br /> <br /> 你这个系统中还用到了multi-configuration。<br /> <br /> <br /> 另外，如果只可以动第三片的厚度的话这个系统是做不好的，最后的光角度是负的。</div> <div class="postmsg">to 新手小李<br /> 我个人认为移动第三片的厚度是为了寻找一个合适的像面.问题是只有一个自由度,使用快速聚焦,是发现和实际像距相差很多.你也是用这个方法得出你的结论的吗?</div> <div class="postmsg">to JasonHan<br /> 我用了multi-configuration，是为了模拟该系统的运动，问是否可以得到像面较好的位置。不过，我还没有得到理想的结果，继续考察中。<br /> 请赐教吧</div> <div class="postmsg">如果只调整第三片间隔的话<br /> <br /> 该系统的理想后截距大约5～7之间变化，我粗略考察了一下。<br /> <br /> 而你的需求要求系统像面距离122.58不变，我认为是不可能做到的。<br /> <br /> <br /> 建议修改方案。</div> <div class="postmsg">to Jasonhan<br /> 在这样的条件下，我同意你的意见。<br /> 后来，修改方案后，初始模型差强人意，working...</div> <div class="postmsg"><div class="quote"><blockquote>原帖由 <i>tommy66</i> 于 2007-10-10 12:12 发表 <a href="http://bbs.oecr.com/redirect.php?goto=findpost&pid=381099&ptid=59259" target="_blank"><img id="aimg_KZ0i2" onclick="zoom(this, this.src, 0, 0, 0)" class="zoom" src="static/image/common/back.gif" onmouseover="img_onmouseoverfunc(this)" onload="thumbImg(this)" border="0" alt="" /></a><br /> to Jasonhan<br /> 在这样的条件下，我同意你的意见。<br /> 后来，修改方案后，初始模型差强人意，working... </blockquote></div><br /> <br /> good luck！</div> <div class="postmsg">你这样，先把你写上去的那个MTF操作数去掉，优化</div> <div class="postmsg">it sounds not needed,i are working now...</div> <div style="height200px;"></div> </div> </div> </div> </div></div> </div> <!--autocomment filter by maxnum--> <div class="ft_wp"> <div id="ft" class=" cl"> <div id="flk" > <p> <a href="http://wpa.qq.com/msgrd?V=3&Uin=20600600&Site=光电工程师社区&Menu=yes&from=discuz" target="_blank" title="QQ"><img src="static/image/common/site_qq.jpg" alt="QQ" /></a><span class="pipe">|</span><a 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