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src="static/image/common/oshr.png" alt="分享" />分享<span id="sharenumber">0</span></i></a> <a href="http://club.oecr.com/home.php?mod=spacecp&ac=favorite&type=thread&id=171608" id="k_favorite" onclick="showWindow(this.id, this.href, 'get', 0);" onmouseover="this.title = $('favoritenumber').innerHTML + ' 人收藏'"><i><img src="static/image/common/fav.gif" alt="收藏" />收藏<span id="favoritenumber">0</span></i></a> <a id="recommend_add" href="forum.php?mod=misc&action=recommend&do=add&tid=171608&hash=6c27e37a" onclick="showWindow('login', this.href)" onmouseover="this.title = $('recommendv_add').innerHTML + ' 人支持'"><i><img src="static/image/common/rec_add.gif" alt="支持" />支持<span id="recommendv_add">0</span></i></a> <a id="recommend_subtract" href="forum.php?mod=misc&action=recommend&do=subtract&tid=171608&hash=6c27e37a" onclick="showWindow('login', this.href)" onmouseover="this.title = $('recommendv_subtract').innerHTML + ' 人反对'"><i><img src="static/image/common/rec_subtract.gif" alt="反对" />反对<span id="recommendv_subtract">0</span></i></a> </div> </td> <td valign="top" class="album_side_r"> <div class="album_side"> <div class="hm mtn mbn"> <a href="http://club.oecr.com/space-uid-107795.html" target="_blank" class="xi2"><img src="http://www.oecr.com/uc_server/avatar.php?uid=107795&size=small" /></a> <span class="tit_author"> <a href="http://club.oecr.com/space-uid-107795.html">liluplanet</a> </span> </div> <div class="date"><span>发布时间:</span> 2011-6-3 15:42</div> <div class="album_info"> <h3>正文摘要: </h3> <p>由于没有图，就拿这个照搬了 光源是405和635nm 的激光笔，光斑在一定距离后外延呈现一圈圈明暗相间的图形，中间部分是实心的，聚焦后就看不到了，但是在焦点外仍能看见，光斑大于1mm的时候很清晰 不是灰尘造成的 ...</p> </div> </div> </td> </tr> </table> </div> </div> <div class="bm vw pl" id="comment"> <div class="bm_h cl"> <h2>回复</h2> </div> <div class="bm_c"> <div id="postlistreply" class="xld xlda mbm"><div id="post_new" class="viewthread_table" style="display: none"></div></div><div id="post_949903" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-68962.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=68962&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-68962.html" target="_blank" class="xi2">matthewlas</a><em id="author_949903"> 发表于</em> <span class="xg1 xw0">2011-11-16 11:43:35</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_949903"> <div class="quote"><blockquote><font size="2"><font color="#999999">minory 发表于 2011-6-8 21:01</font> <a href="http://bbs.oecr.com/forum.php?mod=redirect&goto=findpost&pid=821666&ptid=171608" target="_blank"><img id="aimg_GFsE5" onclick="zoom(this, this.src, 0, 0, 0)" class="zoom" file="static/image/common/back.gif" onmouseover="img_onmouseoverfunc(this)" lazyloadthumb="1" border="0" alt="" /></a></font><br /> 我现在实验用的635nm，3mW的Thorlabs的半导体激光二极管现象跟你一样，去除掉准直光路直接在后方半米处放置 ...</blockquote></div><br /> 多少钱的thorlab的？我有可能能解决掉你说的问题。</td></tr></table> </div> <div id="comment_949903" class="cm"> </div> <div id="post_rate_div_949903"></div> </div> </dd> </dl> <script type="text/javascript" reload="1"> aimgcount[949903] = ['GFsE5']; attachimggroup(949903); </script> </div> <div id="post_822377" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-107795.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=107795&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-107795.html" target="_blank" class="xi2">liluplanet</a><em id="author_822377"> 发表于</em> <span class="xg1 xw0">2011-6-10 10:24:16</span> </dt> <dd class="z"><div class="pcb"> <div class="locked">提示: <em>作者被禁止或删除 内容自动屏蔽</em></div> </div> </dd> </dl> </div> <div id="post_822362" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-123294.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=123294&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-123294.html" target="_blank" class="xi2">minory</a><em id="author_822362"> 发表于</em> <span class="xg1 xw0">2011-6-10 10:08:55</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_822362"> 苏州华邦公司给出的答案是由于LD chip平整度造成的，不能完全避免<img src="static/image/smiley/Tiger/19.gif" smilieid="157" border="0" alt="" /></td></tr></table> </div> <div id="comment_822362" class="cm"> </div> <div id="post_rate_div_822362"></div> </div> </dd> </dl> </div> <div id="post_821666" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-123294.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=123294&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-123294.html" target="_blank" class="xi2">minory</a><em id="author_821666"> 发表于</em> <span class="xg1 xw0">2011-6-8 21:01:21</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_821666"> 我现在实验用的635nm，3mW的Thorlabs的半导体激光二极管现象跟你一样，去除掉准直光路直接在后方半米处放置光屏用肉眼就能看到近似圆形的明暗纹，问了他们公司工程师也没有结果。现在在找有没有类似的替代产品，发现做小功率的激光管的公司还真是不多。</td></tr></table> </div> <div id="comment_821666" class="cm"> </div> <div id="post_rate_div_821666"></div> </div> </dd> </dl> </div> <div id="post_820724" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-89023.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=89023&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-89023.html" target="_blank" class="xi2">yctt</a><em id="author_820724"> 发表于</em> <span class="xg1 xw0">2011-6-4 15:22:28</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_820724"> 干涉条纹</td></tr></table> </div> <div id="comment_820724" class="cm"> </div> <div id="post_rate_div_820724"></div> </div> </dd> </dl> </div> <div id="post_820629" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-107795.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=107795&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-107795.html" target="_blank" class="xi2">liluplanet</a><em id="author_820629"> 发表于</em> <span class="xg1 xw0">2011-6-4 02:16:22</span> </dt> <dd class="z"><div class="pcb"> <div class="locked">提示: <em>作者被禁止或删除 内容自动屏蔽</em></div> </div> </dd> </dl> </div> <div id="post_820626" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-702.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=702&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-702.html" target="_blank" class="xi2">badan</a><em id="author_820626"> 发表于</em> <span class="xg1 xw0">2011-6-3 23:31:06</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_820626"> 看上去因该是干涉条纹。</td></tr></table> </div> <div id="comment_820626" class="cm"> </div> <div id="post_rate_div_820626"></div> </div> </dd> </dl> </div> </div> </div> </div> <script type="text/javascript"> new lazyload(); </script> <div class="wp mtn"> <!--[diy=diy3]--><div id="diy3" class="area"></div><!--[/diy]--> </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 href="http://m.oecr.com" >手机版</a><span 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