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class="xi1">21</span> </div> </td> <td class="plc ptm pbn vwthd sdad"> <div class="y"> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&action=printable&tid=32146" title="打印" target="_blank"><img src="static/image/common/print.png" alt="打印" class="vm" /></a> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=nextoldset&tid=32146" title="上一主题"><img src="static/image/common/thread-prev.png" alt="上一主题" class="vm" /></a> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=nextnewset&tid=32146" title="下一主题"><img src="static/image/common/thread-next.png" alt="下一主题" class="vm" /></a> </div> <span class="xg1 side_btn"> <a onclick="setcookie('close_leftinfo', 1);location.reload();" title="收起左侧" class="btn_s_close" href="javascript:;"><img src="template/focaloptics/image/control_l.png" alt="收起左侧" class="vm" /></a> </span> <h1 class="ts"> <span id="thread_subject">请问为何激光经过扩束装置（由平凹和平凸透镜组成）后光斑上出现明暗相间的条纹？</span> </h1> <span class="xg1"> <a href="http://bbs.oecr.com/thread-32146-1-1.html" onclick="return copyThreadUrl(this, '光电工程师社区')" >[复制链接]</a> </span> </td> </tr> </table> <table cellspacing="0" cellpadding="0" class="ad"> <tr> <td class="pls"> </td> <td class="plc"> </td> </tr> </table><div class="postaaa posta0" id="post_237152" ><table id="pid237152" class="plhin" summary="pid237152" cellspacing="0" cellpadding="0"> <tr> <td class="pls" rowspan="2"> <div id="favatar237152" class="pls favatar"> <div class="pi"> <div class="authi"><a href="http://club.oecr.com/space-uid-12168.html" target="_blank" class="xw1" style="color: #FFCCCC">michelle1981</a> </div> </div> <div class="p_pop blk bui card_gender_" id="userinfo237152" style="display: none; margin-top: -11px;"> <div class="m z"> <div id="userinfo237152_ma"></div> </div> <div class="i y"> <div> <strong><a href="http://club.oecr.com/space-uid-12168.html" target="_blank" class="xi2" style="color: #FFCCCC">michelle1981</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=12168&do=profile" target="_blank" class="xi2">385</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=12168&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=michelle1981" id="a_showip_li_237152" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=michelle1981" id="a_repent_237152" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-12168.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=12168&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <div id="fj" class="y"> <label class="z">电梯直达</label> <input type="text" class="px p_fre z" size="2" onkeyup="$('fj_btn').href='forum.php?mod=redirect&ptid=32146&authorid=0&postno='+this.value" onkeydown="if(event.keyCode==13) {window.location=$('fj_btn').href;return false;}" title="跳转到指定楼层" /> <a href="javascript:;" id="fj_btn" class="z" title="跳转到指定楼层"><img src="static/image/common/fj_btn.png" alt="跳转到指定楼层" class="vm" /></a> </div> <strong> <a href="http://bbs.oecr.com/thread-32146-1-1.html" id="postnum237152" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>1</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon237152" src="static/image/common/online_member.gif" /> <em id="authorposton237152">发表于 2005-3-4 01:05:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=12168" rel="nofollow">只看该作者</a> <span class="none"><img src="static/image/common/arw_r.gif" class="vm" alt="回帖奖励" /></span> <span class="pipe show">|</span><a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&extra=&ordertype=1" class="show">倒序浏览</a> <span class="pipe show">|</span><a href="javascript:;" onclick="readmode($('thread_subject').innerHTML, 237152);" class="show">阅读模式</a> </div> </div> </div><div class="pct"><style type="text/css">.pcb{margin-right:0}</style><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_237152"> 请问为何<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>经过扩束装置（由平凹和平凸透镜组成）后光斑上出现明暗相间的条纹？如何消除这种现象？这种现象对出射光性质有何影响？</td></tr></table> </div> <div id="comment_237152" class="cm"> </div> <div id="post_rate_div_237152"></div> </div> </div> </td></tr> <tr><td class="plc plm"> <div id="p_btn" 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href="http://club.oecr.com/home.php?mod=magic&mid=namepost&idtype=pid&id=237152:32146" id="a_namepost_237152" onclick="showWindow(this.id, this.href)"><img src="static/image/magic/namepost.small.gif" />显身卡</a><li> </ul> <script type="text/javascript" reload="1">checkmgcmn('post_237152')</script> </div> </div> </td> </tr> <tr class="ad"> <td class="pls"> </td> <td class="plc"> </td> </tr> </table> </div><div class="postaaa posta1" id="post_237371" ><table id="pid237371" class="plhin" summary="pid237371" cellspacing="0" cellpadding="0"> <tr> <td class="pls" rowspan="2"> <div id="favatar237371" class="pls favatar"> <div class="pi"> <div class="authi"><a href="http://club.oecr.com/space-uid-6226.html" target="_blank" class="xw1" style="color: #FF00CC">photonman</a> </div> </div> <div class="p_pop blk bui card_gender_" id="userinfo237371" style="display: none; margin-top: -11px;"> <div class="m z"> <div id="userinfo237371_ma"></div> </div> <div class="i y"> <div> <strong><a href="http://club.oecr.com/space-uid-6226.html" target="_blank" class="xi2" style="color: #FF00CC">photonman</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=6226&do=profile" target="_blank" class="xi2">2535</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=6226&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=photonman" id="a_showip_li_237371" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=photonman" id="a_repent_237371" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-6226.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=6226&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <strong> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&ptid=32146&pid=237371" id="postnum237371" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>2</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon237371" src="static/image/common/online_member.gif" /> <em id="authorposton237371">发表于 2005-3-4 18:00:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=6226" rel="nofollow">只看该作者</a> </div> </div> </div><div class="pct"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_237371"> 不太清楚你的实验装置，能不能传张照片，让我们仔细的看看？</td></tr></table> </div> <div id="comment_237371" class="cm"> </div> <div id="post_rate_div_237371"></div> </div> </div> </td></tr> <tr><td class="plc plm"> </td> </tr> <tr id="_postposition237371"></tr> <tr> <td class="pls"></td> <td class="plc" style="overflow:visible;"> <div class="po hin"> <div class="pob cl"> <em> <a class="fastre" href="forum.php?mod=post&action=reply&fid=7&tid=32146&repquote=237371&extra=&page=1" onclick="showWindow('reply', this.href)">回复</a> <a class="replyadd" href="forum.php?mod=misc&action=postreview&do=support&tid=32146&pid=237371&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_support_237371').innerHTML ? $('review_support_237371').innerHTML : 0) + ' 人 支持'">支持 <span id="review_support_237371"></span></a> <a class="replysubtract" href="forum.php?mod=misc&action=postreview&do=against&tid=32146&pid=237371&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_against_237371').innerHTML ? $('review_against_237371').innerHTML : 0) + ' 人 反对'">反对 <span id="review_against_237371"></span></a> </em> <p> <a href="javascript:;" id="mgc_post_237371" onmouseover="showMenu(this.id)" class="showmenu">使用道具</a> <a href="javascript:;" onclick="showWindow('miscreport237371', 'misc.php?mod=report&rtype=post&rid=237371&tid=32146&fid=7', 'get', -1);return false;">举报</a> </p> <ul id="mgc_post_237371_menu" class="p_pop mgcmn" style="display: none;"> <li><a href="http://club.oecr.com/home.php?mod=magic&mid=namepost&idtype=pid&id=237371:32146" id="a_namepost_237371" onclick="showWindow(this.id, this.href)"><img src="static/image/magic/namepost.small.gif" />显身卡</a><li> </ul> <script type="text/javascript" reload="1">checkmgcmn('post_237371')</script> </div> </div> </td> </tr> <tr class="ad"> <td class="pls"> </td> <td class="plc"> </td> </tr> </table> </div><div class="postaaa posta2" id="post_237409" ><table id="pid237409" class="plhin" summary="pid237409" cellspacing="0" cellpadding="0"> <tr> <td class="pls" rowspan="2"> <div id="favatar237409" class="pls favatar"> <div class="pi"> <div class="authi"><a href="http://club.oecr.com/space-uid-5689.html" target="_blank" class="xw1" style="color: #FF99FF">muddyren</a> </div> </div> <div class="p_pop blk bui card_gender_" id="userinfo237409" style="display: none; margin-top: -11px;"> <div class="m z"> <div id="userinfo237409_ma"></div> </div> <div class="i y"> <div> <strong><a href="http://club.oecr.com/space-uid-5689.html" target="_blank" class="xi2" style="color: #FF99FF">muddyren</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=5689&do=profile" target="_blank" class="xi2">1809</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=5689&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=muddyren" id="a_showip_li_237409" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=muddyren" id="a_repent_237409" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-5689.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=5689&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <strong> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&ptid=32146&pid=237409" id="postnum237409" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>3</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon237409" src="static/image/common/online_member.gif" /> <em id="authorposton237409">发表于 2005-3-4 18:57:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=5689" rel="nofollow">只看该作者</a> </div> </div> </div><div class="pct"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_237409"> <P>请问你是把光斑打到什么屏上观察的?会不会是散斑</P></td></tr></table> </div> <div id="comment_237409" class="cm"> </div> <div id="post_rate_div_237409"></div> </div> </div> </td></tr> <tr><td class="plc plm"> </td> </tr> <tr id="_postposition237409"></tr> <tr> <td class="pls"></td> <td class="plc" style="overflow:visible;"> <div class="po hin"> <div class="pob cl"> <em> <a class="fastre" href="forum.php?mod=post&action=reply&fid=7&tid=32146&repquote=237409&extra=&page=1" onclick="showWindow('reply', this.href)">回复</a> <a class="replyadd" href="forum.php?mod=misc&action=postreview&do=support&tid=32146&pid=237409&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_support_237409').innerHTML ? $('review_support_237409').innerHTML : 0) + ' 人 支持'">支持 <span id="review_support_237409"></span></a> <a class="replysubtract" href="forum.php?mod=misc&action=postreview&do=against&tid=32146&pid=237409&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_against_237409').innerHTML ? $('review_against_237409').innerHTML : 0) + ' 人 反对'">反对 <span id="review_against_237409"></span></a> </em> <p> <a href="javascript:;" id="mgc_post_237409" onmouseover="showMenu(this.id)" class="showmenu">使用道具</a> <a href="javascript:;" onclick="showWindow('miscreport237409', 'misc.php?mod=report&rtype=post&rid=237409&tid=32146&fid=7', 'get', -1);return false;">举报</a> </p> <ul id="mgc_post_237409_menu" class="p_pop mgcmn" style="display: none;"> <li><a href="http://club.oecr.com/home.php?mod=magic&mid=namepost&idtype=pid&id=237409:32146" id="a_namepost_237409" onclick="showWindow(this.id, this.href)"><img src="static/image/magic/namepost.small.gif" />显身卡</a><li> </ul> <script type="text/javascript" reload="1">checkmgcmn('post_237409')</script> </div> </div> </td> </tr> <tr class="ad"> <td class="pls"> </td> <td class="plc"> </td> </tr> </table> </div><div class="postaaa posta3" id="post_237456" ><table id="pid237456" class="plhin" summary="pid237456" cellspacing="0" cellpadding="0"> <tr> <td class="pls" rowspan="2"> <div id="favatar237456" class="pls favatar"> <div class="pi"> <div class="authi"><a href="http://club.oecr.com/space-uid-19640.html" target="_blank" class="xw1" style="color: #FF99FF">dingjunshan</a> </div> </div> <div class="p_pop blk bui card_gender_" id="userinfo237456" style="display: none; margin-top: -11px;"> <div class="m z"> <div id="userinfo237456_ma"></div> </div> <div class="i y"> <div> <strong><a href="http://club.oecr.com/space-uid-19640.html" target="_blank" class="xi2" style="color: #FF99FF">dingjunshan</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=19640&do=profile" target="_blank" class="xi2">960</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=19640&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=dingjunshan" id="a_showip_li_237456" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=dingjunshan" id="a_repent_237456" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-19640.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=19640&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <strong> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&ptid=32146&pid=237456" id="postnum237456" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>4</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon237456" src="static/image/common/online_member.gif" /> <em id="authorposton237456">发表于 2005-3-4 20:33:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=19640" rel="nofollow">只看该作者</a> </div> </div> </div><div class="pct"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_237456"> 俺知道激光这玩意是很容易发生干涉的。</td></tr></table> </div> <div id="comment_237456" class="cm"> </div> <div id="post_rate_div_237456"></div> </div> </div> </td></tr> <tr><td class="plc plm"> </td> </tr> <tr id="_postposition237456"></tr> <tr> <td class="pls"></td> <td class="plc" style="overflow:visible;"> <div class="po hin"> <div class="pob cl"> <em> <a class="fastre" href="forum.php?mod=post&action=reply&fid=7&tid=32146&repquote=237456&extra=&page=1" onclick="showWindow('reply', this.href)">回复</a> <a class="replyadd" href="forum.php?mod=misc&action=postreview&do=support&tid=32146&pid=237456&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_support_237456').innerHTML ? $('review_support_237456').innerHTML : 0) + ' 人 支持'">支持 <span id="review_support_237456"></span></a> <a class="replysubtract" href="forum.php?mod=misc&action=postreview&do=against&tid=32146&pid=237456&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_against_237456').innerHTML ? $('review_against_237456').innerHTML : 0) + ' 人 反对'">反对 <span id="review_against_237456"></span></a> </em> <p> <a href="javascript:;" id="mgc_post_237456" onmouseover="showMenu(this.id)" class="showmenu">使用道具</a> <a href="javascript:;" onclick="showWindow('miscreport237456', 'misc.php?mod=report&rtype=post&rid=237456&tid=32146&fid=7', 'get', -1);return false;">举报</a> </p> <ul id="mgc_post_237456_menu" class="p_pop mgcmn" style="display: none;"> <li><a href="http://club.oecr.com/home.php?mod=magic&mid=namepost&idtype=pid&id=237456:32146" id="a_namepost_237456" onclick="showWindow(this.id, this.href)"><img src="static/image/magic/namepost.small.gif" />显身卡</a><li> </ul> <script type="text/javascript" reload="1">checkmgcmn('post_237456')</script> </div> </div> </td> </tr> <tr class="ad"> <td class="pls"> </td> <td class="plc"> </td> </tr> </table> </div><div class="postaaa posta4" id="post_237527" ><table id="pid237527" class="plhin" summary="pid237527" cellspacing="0" cellpadding="0"> <tr> <td class="pls" rowspan="2"> <div id="favatar237527" class="pls favatar"> <div class="pi"> <div class="authi"><a href="http://club.oecr.com/space-uid-26518.html" target="_blank" class="xw1" style="color: #00FF99">swizzle</a> </div> </div> <div class="p_pop blk bui card_gender_" id="userinfo237527" style="display: none; margin-top: -11px;"> <div class="m z"> <div id="userinfo237527_ma"></div> </div> <div class="i y"> <div> <strong><a href="http://club.oecr.com/space-uid-26518.html" target="_blank" class="xi2" style="color: #00FF99">swizzle</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=26518&do=profile" target="_blank" class="xi2">513</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=26518&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=swizzle" id="a_showip_li_237527" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=swizzle" id="a_repent_237527" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-26518.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=26518&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <strong> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&ptid=32146&pid=237527" id="postnum237527" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>5</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon237527" src="static/image/common/online_member.gif" /> <em id="authorposton237527">发表于 2005-3-5 04:08:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=26518" rel="nofollow">只看该作者</a> </div> </div> </div><div class="pct"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_237527"> 激光具有良好的衍射和干涉性质，这是干涉条纹。一般来说经过光学系统都会发生这种现象吧。</td></tr></table> </div> <div id="comment_237527" class="cm"> </div> <div id="post_rate_div_237527"></div> </div> </div> </td></tr> <tr><td class="plc plm"> </td> </tr> <tr id="_postposition237527"></tr> <tr> <td class="pls"></td> <td class="plc" style="overflow:visible;"> <div class="po hin"> <div class="pob cl"> <em> <a class="fastre" href="forum.php?mod=post&action=reply&fid=7&tid=32146&repquote=237527&extra=&page=1" onclick="showWindow('reply', this.href)">回复</a> <a class="replyadd" href="forum.php?mod=misc&action=postreview&do=support&tid=32146&pid=237527&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_support_237527').innerHTML ? $('review_support_237527').innerHTML : 0) + ' 人 支持'">支持 <span id="review_support_237527"></span></a> <a class="replysubtract" href="forum.php?mod=misc&action=postreview&do=against&tid=32146&pid=237527&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_against_237527').innerHTML ? $('review_against_237527').innerHTML : 0) + ' 人 反对'">反对 <span id="review_against_237527"></span></a> </em> <p> <a href="javascript:;" id="mgc_post_237527" onmouseover="showMenu(this.id)" class="showmenu">使用道具</a> <a href="javascript:;" onclick="showWindow('miscreport237527', 'misc.php?mod=report&rtype=post&rid=237527&tid=32146&fid=7', 'get', -1);return false;">举报</a> </p> <ul id="mgc_post_237527_menu" class="p_pop mgcmn" style="display: 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<strong><a href="http://club.oecr.com/space-uid-12168.html" target="_blank" class="xi2" style="color: #FFCCCC">michelle1981</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=12168&do=profile" target="_blank" class="xi2">385</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=12168&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=michelle1981" id="a_showip_li_237996" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=michelle1981" id="a_repent_237996" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-12168.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=12168&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <strong> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&ptid=32146&pid=237996" id="postnum237996" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>6</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon237996" src="static/image/common/ico_lz.png" /> 楼主<span class="pipe">|</span> <em id="authorposton237996">发表于 2005-3-10 19:26:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=12168" rel="nofollow">只看该作者</a> </div> </div> </div><div class="pct"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_237996"> <P>扩束装置中平凸与平凹透镜相距20cm，应该不是等厚干涉吧。明暗相间的条纹呈圆环状，位于光斑的一部分。加入针孔滤波器可以消除这种现象吗？还有，针孔滤波器是不是必须与显微物镜配合使用呢？</P></td></tr></table> </div> <div id="comment_237996" class="cm"> </div> <div id="post_rate_div_237996"></div> </div> </div> </td></tr> <tr><td class="plc plm"> </td> </tr> <tr id="_postposition237996"></tr> <tr> <td class="pls"></td> <td class="plc" style="overflow:visible;"> <div class="po hin"> <div class="pob cl"> <em> <a class="fastre" href="forum.php?mod=post&action=reply&fid=7&tid=32146&repquote=237996&extra=&page=1" onclick="showWindow('reply', this.href)">回复</a> <a class="replyadd" href="forum.php?mod=misc&action=postreview&do=support&tid=32146&pid=237996&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_support_237996').innerHTML ? $('review_support_237996').innerHTML : 0) + ' 人 支持'">支持 <span id="review_support_237996"></span></a> <a class="replysubtract" href="forum.php?mod=misc&action=postreview&do=against&tid=32146&pid=237996&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_against_237996').innerHTML ? $('review_against_237996').innerHTML : 0) + ' 人 反对'">反对 <span id="review_against_237996"></span></a> </em> <p> <a href="javascript:;" id="mgc_post_237996" onmouseover="showMenu(this.id)" class="showmenu">使用道具</a> <a href="javascript:;" onclick="showWindow('miscreport237996', 'misc.php?mod=report&rtype=post&rid=237996&tid=32146&fid=7', 'get', -1);return false;">举报</a> </p> <ul id="mgc_post_237996_menu" class="p_pop mgcmn" style="display: none;"> <li><a href="http://club.oecr.com/home.php?mod=magic&mid=namepost&idtype=pid&id=237996:32146" id="a_namepost_237996" onclick="showWindow(this.id, this.href)"><img src="static/image/magic/namepost.small.gif" />显身卡</a><li> </ul> <script type="text/javascript" reload="1">checkmgcmn('post_237996')</script> </div> </div> </td> </tr> <tr class="ad"> <td class="pls"> </td> <td class="plc"> </td> </tr> </table> </div><div class="postaaa posta6" id="post_238152" ><table id="pid238152" class="plhin" summary="pid238152" cellspacing="0" cellpadding="0"> <tr> <td class="pls" rowspan="2"> <div id="favatar238152" class="pls favatar"> <div class="pi"> <div class="authi"><a href="http://club.oecr.com/space-uid-16087.html" target="_blank" class="xw1" style="color: #FF00CC">grating22</a> </div> </div> <div class="p_pop blk bui card_gender_" id="userinfo238152" style="display: none; margin-top: -11px;"> <div class="m z"> <div id="userinfo238152_ma"></div> </div> <div class="i y"> <div> <strong><a href="http://club.oecr.com/space-uid-16087.html" target="_blank" class="xi2" style="color: #FF00CC">grating22</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=16087&do=profile" target="_blank" class="xi2">3088</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=16087&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=grating22" id="a_showip_li_238152" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=grating22" id="a_repent_238152" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-16087.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=16087&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <strong> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&ptid=32146&pid=238152" id="postnum238152" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>7</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon238152" src="static/image/common/online_member.gif" /> <em id="authorposton238152">发表于 2005-3-7 19:31:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=16087" rel="nofollow">只看该作者</a> </div> </div> </div><div class="pct"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_238152"> 是干什条纹，而且应该是等厚干涉条纹</td></tr></table> </div> <div id="comment_238152" class="cm"> </div> <div id="post_rate_div_238152"></div> </div> </div> </td></tr> <tr><td class="plc plm"> </td> </tr> <tr id="_postposition238152"></tr> <tr> <td class="pls"></td> <td class="plc" style="overflow:visible;"> <div class="po hin"> <div class="pob cl"> <em> <a class="fastre" href="forum.php?mod=post&action=reply&fid=7&tid=32146&repquote=238152&extra=&page=1" onclick="showWindow('reply', this.href)">回复</a> <a class="replyadd" href="forum.php?mod=misc&action=postreview&do=support&tid=32146&pid=238152&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_support_238152').innerHTML ? $('review_support_238152').innerHTML : 0) + ' 人 支持'">支持 <span id="review_support_238152"></span></a> <a class="replysubtract" href="forum.php?mod=misc&action=postreview&do=against&tid=32146&pid=238152&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_against_238152').innerHTML ? $('review_against_238152').innerHTML : 0) + ' 人 反对'">反对 <span id="review_against_238152"></span></a> </em> <p> <a href="javascript:;" id="mgc_post_238152" onmouseover="showMenu(this.id)" class="showmenu">使用道具</a> <a href="javascript:;" onclick="showWindow('miscreport238152', 'misc.php?mod=report&rtype=post&rid=238152&tid=32146&fid=7', 'get', -1);return false;">举报</a> </p> <ul id="mgc_post_238152_menu" class="p_pop mgcmn" style="display: none;"> <li><a href="http://club.oecr.com/home.php?mod=magic&mid=namepost&idtype=pid&id=238152:32146" id="a_namepost_238152" onclick="showWindow(this.id, this.href)"><img src="static/image/magic/namepost.small.gif" />显身卡</a><li> </ul> <script type="text/javascript" reload="1">checkmgcmn('post_238152')</script> </div> </div> </td> </tr> <tr class="ad"> <td class="pls"> </td> <td class="plc"> </td> </tr> </table> </div><div class="postaaa posta7" id="post_238529" ><table id="pid238529" class="plhin" summary="pid238529" cellspacing="0" cellpadding="0"> <tr> <td class="pls" rowspan="2"> <div id="favatar238529" class="pls favatar"> <div class="pi"> <div class="authi"><a href="http://club.oecr.com/space-uid-14703.html" target="_blank" class="xw1" style="color: #0033CC">wolfchen</a> </div> </div> <div class="p_pop blk bui card_gender_" id="userinfo238529" style="display: none; margin-top: -11px;"> <div class="m z"> <div id="userinfo238529_ma"></div> </div> <div class="i y"> <div> <strong><a href="http://club.oecr.com/space-uid-14703.html" target="_blank" class="xi2" style="color: #0033CC">wolfchen</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=14703&do=profile" target="_blank" class="xi2">382</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=14703&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=wolfchen" id="a_showip_li_238529" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=wolfchen" id="a_repent_238529" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-14703.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=14703&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <strong> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&ptid=32146&pid=238529" id="postnum238529" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>8</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon238529" src="static/image/common/online_member.gif" /> <em id="authorposton238529">发表于 2005-3-8 23:07:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=14703" rel="nofollow">只看该作者</a> </div> </div> </div><div class="pct"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_238529"> <P>如果分布规则,很可能是干涉.如果杂乱,很可能要空间滤波</P></td></tr></table> </div> <div id="comment_238529" class="cm"> </div> <div id="post_rate_div_238529"></div> </div> </div> </td></tr> <tr><td class="plc plm"> </td> </tr> <tr id="_postposition238529"></tr> <tr> <td class="pls"></td> <td class="plc" style="overflow:visible;"> <div class="po hin"> <div class="pob cl"> <em> <a class="fastre" href="forum.php?mod=post&action=reply&fid=7&tid=32146&repquote=238529&extra=&page=1" onclick="showWindow('reply', this.href)">回复</a> <a class="replyadd" href="forum.php?mod=misc&action=postreview&do=support&tid=32146&pid=238529&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_support_238529').innerHTML ? $('review_support_238529').innerHTML : 0) + ' 人 支持'">支持 <span id="review_support_238529"></span></a> <a class="replysubtract" href="forum.php?mod=misc&action=postreview&do=against&tid=32146&pid=238529&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_against_238529').innerHTML ? $('review_against_238529').innerHTML : 0) + ' 人 反对'">反对 <span id="review_against_238529"></span></a> </em> <p> <a href="javascript:;" id="mgc_post_238529" onmouseover="showMenu(this.id)" class="showmenu">使用道具</a> <a href="javascript:;" onclick="showWindow('miscreport238529', 'misc.php?mod=report&rtype=post&rid=238529&tid=32146&fid=7', 'get', -1);return false;">举报</a> </p> <ul id="mgc_post_238529_menu" class="p_pop mgcmn" style="display: none;"> <li><a href="http://club.oecr.com/home.php?mod=magic&mid=namepost&idtype=pid&id=238529:32146" id="a_namepost_238529" onclick="showWindow(this.id, this.href)"><img src="static/image/magic/namepost.small.gif" />显身卡</a><li> </ul> <script type="text/javascript" reload="1">checkmgcmn('post_238529')</script> </div> </div> </td> </tr> <tr class="ad"> <td class="pls"> </td> <td class="plc"> </td> </tr> </table> </div><div class="postaaa posta8" id="post_238828" ><table id="pid238828" class="plhin" summary="pid238828" cellspacing="0" cellpadding="0"> <tr> <td class="pls" rowspan="2"> <div id="favatar238828" class="pls favatar"> <div class="pi"> <div class="authi"><a href="http://club.oecr.com/space-uid-26648.html" target="_blank" class="xw1" style="color: #00FF99">掠沙飞</a> </div> </div> <div class="p_pop blk bui card_gender_" id="userinfo238828" style="display: none; margin-top: -11px;"> <div class="m z"> <div id="userinfo238828_ma"></div> </div> <div class="i y"> <div> <strong><a href="http://club.oecr.com/space-uid-26648.html" target="_blank" class="xi2" style="color: #00FF99">掠沙飞</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=26648&do=profile" target="_blank" class="xi2">549</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=26648&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=%C2%D3%C9%B3%B7%C9" id="a_showip_li_238828" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=%C2%D3%C9%B3%B7%C9" id="a_repent_238828" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-26648.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=26648&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <strong> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&ptid=32146&pid=238828" id="postnum238828" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>9</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon238828" src="static/image/common/online_member.gif" /> <em id="authorposton238828">发表于 2005-3-10 03:17:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=26648" rel="nofollow">只看该作者</a> </div> </div> </div><div class="pct"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_238828"> 那肯定是衍射条纹的啦！因为你的扩束装置总有尺寸吧！</td></tr></table> </div> <div id="comment_238828" class="cm"> </div> <div id="post_rate_div_238828"></div> </div> </div> </td></tr> <tr><td class="plc plm"> </td> </tr> <tr id="_postposition238828"></tr> <tr> <td class="pls"></td> <td class="plc" style="overflow:visible;"> <div class="po hin"> <div class="pob cl"> <em> <a class="fastre" href="forum.php?mod=post&action=reply&fid=7&tid=32146&repquote=238828&extra=&page=1" onclick="showWindow('reply', this.href)">回复</a> <a class="replyadd" href="forum.php?mod=misc&action=postreview&do=support&tid=32146&pid=238828&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_support_238828').innerHTML ? $('review_support_238828').innerHTML : 0) + ' 人 支持'">支持 <span id="review_support_238828"></span></a> <a class="replysubtract" href="forum.php?mod=misc&action=postreview&do=against&tid=32146&pid=238828&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_against_238828').innerHTML ? $('review_against_238828').innerHTML : 0) + ' 人 反对'">反对 <span id="review_against_238828"></span></a> </em> <p> <a href="javascript:;" id="mgc_post_238828" onmouseover="showMenu(this.id)" class="showmenu">使用道具</a> <a href="javascript:;" onclick="showWindow('miscreport238828', 'misc.php?mod=report&rtype=post&rid=238828&tid=32146&fid=7', 'get', -1);return false;">举报</a> </p> <ul id="mgc_post_238828_menu" class="p_pop mgcmn" style="display: none;"> <li><a href="http://club.oecr.com/home.php?mod=magic&mid=namepost&idtype=pid&id=238828:32146" id="a_namepost_238828" onclick="showWindow(this.id, this.href)"><img src="static/image/magic/namepost.small.gif" />显身卡</a><li> </ul> <script type="text/javascript" reload="1">checkmgcmn('post_238828')</script> </div> </div> </td> </tr> <tr class="ad"> <td class="pls"> </td> <td class="plc"> </td> </tr> </table> </div><div class="postaaa posta9" id="post_273825" ><table id="pid273825" class="plhin" summary="pid273825" cellspacing="0" cellpadding="0"> <tr> <td class="pls" rowspan="2"> <div id="favatar273825" class="pls favatar"> <div class="pi"> <div class="authi"><a href="http://club.oecr.com/space-uid-34638.html" target="_blank" class="xw1" style="color: #FFCCCC">opo-mjg</a> </div> </div> <div class="p_pop blk bui card_gender_" id="userinfo273825" style="display: none; margin-top: -11px;"> <div class="m z"> <div id="userinfo273825_ma"></div> </div> <div class="i y"> <div> <strong><a href="http://club.oecr.com/space-uid-34638.html" target="_blank" class="xi2" style="color: #FFCCCC">opo-mjg</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=34638&do=profile" target="_blank" class="xi2">506</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=34638&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=opo-mjg" id="a_showip_li_273825" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=opo-mjg" id="a_repent_273825" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-34638.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=34638&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <strong> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&ptid=32146&pid=273825" id="postnum273825" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>10</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon273825" src="static/image/common/online_member.gif" /> <em id="authorposton273825">发表于 2005-9-7 20:03:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=34638" rel="nofollow">只看该作者</a> </div> </div> </div><div class="pct"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_273825"> 说明你的LD功率已经下降，或者损坏，正常情况下不应该有干涉条纹！<br /> <img src="static/image/smiley/default/em09.gif" smilieid="38" border="0" alt="" /></td></tr></table> </div> <div id="comment_273825" class="cm"> </div> <div id="post_rate_div_273825"></div> </div> </div> </td></tr> <tr><td class="plc plm"> </td> </tr> <tr id="_postposition273825"></tr> <tr> <td class="pls"></td> <td class="plc" style="overflow:visible;"> <div class="po hin"> <div class="pob cl"> <em> <a class="fastre" href="forum.php?mod=post&action=reply&fid=7&tid=32146&repquote=273825&extra=&page=1" onclick="showWindow('reply', this.href)">回复</a> <a class="replyadd" href="forum.php?mod=misc&action=postreview&do=support&tid=32146&pid=273825&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_support_273825').innerHTML ? $('review_support_273825').innerHTML : 0) + ' 人 支持'">支持 <span id="review_support_273825"></span></a> <a class="replysubtract" href="forum.php?mod=misc&action=postreview&do=against&tid=32146&pid=273825&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_against_273825').innerHTML ? $('review_against_273825').innerHTML : 0) + ' 人 反对'">反对 <span id="review_against_273825"></span></a> </em> <p> <a href="javascript:;" id="mgc_post_273825" onmouseover="showMenu(this.id)" class="showmenu">使用道具</a> <a href="javascript:;" onclick="showWindow('miscreport273825', 'misc.php?mod=report&rtype=post&rid=273825&tid=32146&fid=7', 'get', -1);return false;">举报</a> </p> <ul id="mgc_post_273825_menu" class="p_pop mgcmn" style="display: none;"> <li><a href="http://club.oecr.com/home.php?mod=magic&mid=namepost&idtype=pid&id=273825:32146" id="a_namepost_273825" onclick="showWindow(this.id, this.href)"><img src="static/image/magic/namepost.small.gif" />显身卡</a><li> </ul> <script type="text/javascript" reload="1">checkmgcmn('post_273825')</script> </div> </div> </td> </tr> <tr class="ad"> <td class="pls"> </td> <td class="plc"> </td> </tr> </table> </div><div class="postaaa posta10" id="post_273999" ><table id="pid273999" class="plhin" summary="pid273999" cellspacing="0" cellpadding="0"> <tr> <td class="pls" rowspan="2"> <div id="favatar273999" class="pls favatar"> <div class="pi"> <div class="authi"><a href="http://club.oecr.com/space-uid-34282.html" target="_blank" class="xw1" style="color: #FF99FF">Jimmy_tang</a> </div> </div> <div class="p_pop blk bui card_gender_" id="userinfo273999" style="display: none; margin-top: -11px;"> <div class="m z"> <div id="userinfo273999_ma"></div> </div> <div class="i y"> <div> <strong><a href="http://club.oecr.com/space-uid-34282.html" target="_blank" class="xi2" style="color: #FF99FF">Jimmy_tang</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=34282&do=profile" target="_blank" class="xi2">1918</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=34282&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=Jimmy_tang" id="a_showip_li_273999" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=Jimmy_tang" id="a_repent_273999" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-34282.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=34282&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <strong> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&ptid=32146&pid=273999" id="postnum273999" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>11</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon273999" src="static/image/common/online_member.gif" /> <em id="authorposton273999">发表于 2005-9-8 17:52:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=34282" rel="nofollow">只看该作者</a> </div> </div> </div><div class="pct"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_273999"> 你的望远系统没有设计好，相差造成干涉条纹。<br /> LD的功率下降可不会使光斑出现条纹的，何况楼主的意思应该是准直前没有，准直后出现干涉条纹呢。</td></tr></table> </div> <div id="comment_273999" class="cm"> </div> <div id="post_rate_div_273999"></div> </div> </div> </td></tr> <tr><td class="plc plm"> </td> </tr> <tr id="_postposition273999"></tr> <tr> <td class="pls"></td> <td class="plc" style="overflow:visible;"> <div class="po hin"> <div class="pob cl"> <em> <a class="fastre" href="forum.php?mod=post&action=reply&fid=7&tid=32146&repquote=273999&extra=&page=1" onclick="showWindow('reply', this.href)">回复</a> <a class="replyadd" href="forum.php?mod=misc&action=postreview&do=support&tid=32146&pid=273999&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_support_273999').innerHTML ? $('review_support_273999').innerHTML : 0) + ' 人 支持'">支持 <span id="review_support_273999"></span></a> <a class="replysubtract" href="forum.php?mod=misc&action=postreview&do=against&tid=32146&pid=273999&hash=7eb11010" onclick="showWindow('login', this.href)" onmouseover="this.title = ($('review_against_273999').innerHTML ? $('review_against_273999').innerHTML : 0) + ' 人 反对'">反对 <span id="review_against_273999"></span></a> </em> <p> <a href="javascript:;" id="mgc_post_273999" onmouseover="showMenu(this.id)" class="showmenu">使用道具</a> <a href="javascript:;" onclick="showWindow('miscreport273999', 'misc.php?mod=report&rtype=post&rid=273999&tid=32146&fid=7', 'get', -1);return false;">举报</a> </p> <ul id="mgc_post_273999_menu" class="p_pop mgcmn" style="display: none;"> <li><a href="http://club.oecr.com/home.php?mod=magic&mid=namepost&idtype=pid&id=273999:32146" id="a_namepost_273999" onclick="showWindow(this.id, this.href)"><img src="static/image/magic/namepost.small.gif" />显身卡</a><li> </ul> <script type="text/javascript" reload="1">checkmgcmn('post_273999')</script> </div> </div> </td> </tr> <tr class="ad"> <td class="pls"> </td> <td class="plc"> </td> </tr> </table> </div><div class="postaaa posta11" id="post_274041" ><table id="pid274041" class="plhin" summary="pid274041" cellspacing="0" cellpadding="0"> <tr> <td class="pls" rowspan="2"> <div id="favatar274041" class="pls favatar"> <div class="pi"> <div class="authi"><a href="http://club.oecr.com/space-uid-34263.html" target="_blank" class="xw1" style="color: #FFCCCC">laser-guru</a> </div> </div> <div class="p_pop blk bui card_gender_" id="userinfo274041" style="display: none; margin-top: -11px;"> <div class="m z"> <div id="userinfo274041_ma"></div> </div> <div class="i y"> <div> <strong><a href="http://club.oecr.com/space-uid-34263.html" target="_blank" class="xi2" style="color: #FFCCCC">laser-guru</a></strong> <em>当前离线</em> </div><dl class="cl"> <dt>积分</dt><dd><a href="http://club.oecr.com/home.php?mod=space&uid=34263&do=profile" target="_blank" class="xi2">438</a></dd> </dl><div class="imicn"> <a href="http://club.oecr.com/home.php?mod=space&uid=34263&do=profile" target="_blank" title="查看详细资料"><img src="static/image/common/userinfo.gif" alt="查看详细资料" /></a> <a href="http://club.oecr.com/home.php?mod=magic&mid=showip&idtype=user&id=laser-guru" id="a_showip_li_274041" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/showip.small.gif" alt="" /> IP卡</a> <a href="http://club.oecr.com/home.php?mod=magic&mid=checkonline&idtype=user&id=laser-guru" id="a_repent_274041" class="xi2" onclick="showWindow(this.id, this.href)"><img src="static//image/magic/checkonline.small.gif" alt="" /> 狗仔卡</a> </div> <div id="avatarfeed"><span id="threadsortswait"></span></div> </div> </div> <div> <div class="avatar"><a href="http://club.oecr.com/space-uid-34263.html" class="avtm" target="_blank"><img src="http://www.oecr.com/uc_server/avatar.php?uid=34263&size=middle" /></a></div> </div> </div> </td> <td class="plc"> <div class="pi"> <strong> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&ptid=32146&pid=274041" id="postnum274041" onclick="setCopy(this.href, '帖子地址复制成功');return false;"> <em>12</em>楼</a> </strong> <div class="pti"> <div class="pdbt"> </div> <div class="authi"> <img class="authicn vm" id="authicon274041" src="static/image/common/online_member.gif" /> <em id="authorposton274041">发表于 2005-9-8 20:23:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=32146&page=1&authorid=34263" rel="nofollow">只看该作者</a> </div> </div> </div><div class="pct"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_274041"> 如果是等厚干涉的条纹, 应该在整个光斑内都可见. 另外产生等候干涉说明透镜的增透膜没镀好, 可以测量一下反射光的强度(不要测透射率,精度不够). 再者, 透镜的两个面之间一般会有楔角, 所以干涉环应该是椭圆的. <br /> <br /> 从"圆条纹只在光斑的局部出现"这一点看, 很可能是光斑打在灰尘上引起, 将两片镜子的四个面都擦干净看看. <br /> <br /> 你还可以做一些判断试验来看看究竟是什么原因. 只要转动一下你的透镜组或某一透镜, 看看条纹怎么动. <br /> </td></tr></table> </div> <div id="comment_274041" class="cm"> </div> <div id="post_rate_div_274041"></div> </div> </div> </td></tr> <tr><td class="plc plm"> </td> </tr> <tr id="_postposition274041"></tr> <tr> <td class="pls"></td> <td class="plc" style="overflow:visible;"> <div class="po hin"> <div class="pob cl"> <em> <a class="fastre" 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