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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-74643.html" target="_blank" class="xi2"><img src="http://www.oecr.com/uc_server/avatar.php?uid=74643&size=small" /></a> <span class="tit_author"> <a href="http://club.oecr.com/space-uid-74643.html">quentyoung</a> </span> </div> <div class="date"><span>发布时间:</span> 2010-4-1 11:45</div> <div class="album_info"> <h3>正文摘要: </h3> <p> 图里面是一个用来接收直射太阳光的入口管，太阳光直射入光中后，在下面有用于反射太阳光的光学结构，内壁全部涂黑了，然后管内分别有四个不同孔径的光阑，孔径大小变化大概符合一定角度的规律，是另外加工的， ...</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_651818" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-1968.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=1968&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-1968.html" target="_blank" class="xi2">ds1234567</a><em id="author_651818"> 发表于</em> <span class="xg1 xw0">2010-6-13 16:27:11</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_651818"> 用户只要阳光，当有许多这样装置时，可以实现照射角度，强度自由可调，只是时间有限。</td></tr></table> </div> <div id="comment_651818" class="cm"> </div> <div id="post_rate_div_651818"></div> </div> </dd> </dl> </div> <div id="post_651813" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-59855.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=59855&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-59855.html" target="_blank" class="xi2">lillman</a><em id="author_651813"> 发表于</em> <span class="xg1 xw0">2010-6-13 16:09:36</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_651813"> 这些都是减少杂散光作用的，反射长管的内部反射光学结构是起到遮光罩的作用，光通过不同孔径的光阑，在台阶面上就能反射掉大量的多余光线，减少杂散光入射，内部涂黑也是吸收杂散光。</td></tr></table> </div> <div id="comment_651813" class="cm"> </div> <div id="post_rate_div_651813"></div> </div> </dd> </dl> </div> <div id="post_651759" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-10207.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=10207&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-10207.html" target="_blank" class="xi2">乏味</a><em id="author_651759"> 发表于</em> <span class="xg1 xw0">2010-6-13 09:46:43</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_651759"> 提高光束质量。</td></tr></table> </div> <div id="comment_651759" class="cm"> </div> <div id="post_rate_div_651759"></div> </div> </dd> </dl> </div> <div id="post_651748" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-7436.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=7436&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-7436.html" target="_blank" class="xi2">stevenwu</a><em id="author_651748"> 发表于</em> <span class="xg1 xw0">2010-6-13 09:06:34</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_651748"> <br /> <br /> 我不是做这个的，感觉应该是让进去的光线，能够全部被吸收，不让它出来，就象个黑体一样，这样可以提高吸收光的效率<br /> <br /> <br /> <br /> </td></tr></table> </div> <div id="comment_651748" class="cm"> </div> <div id="post_rate_div_651748"></div> </div> </dd> </dl> </div> <div id="post_651724" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-114360.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=114360&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-114360.html" target="_blank" class="xi2">shuxinlei</a><em id="author_651724"> 发表于</em> <span class="xg1 xw0">2010-6-12 19:34:49</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_651724"> <br /> <br /> 还是为了能够接收到更多的平行光线，栏掉斜射的，为了精确。我做过这个设计<br /> <br /> <br /> <br /> </td></tr></table> </div> <div id="comment_651724" class="cm"> </div> <div id="post_rate_div_651724"></div> </div> </dd> </dl> </div> <div id="post_638817" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-84642.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=84642&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-84642.html" target="_blank" class="xi2">qdhank</a><em id="author_638817"> 发表于</em> <span class="xg1 xw0">2010-4-13 16:04:41</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_638817"> <br /> <br /> 如果管子很长的话，应该是让光线准直吧。<br /> <br /> <br /> <br /> </td></tr></table> </div> <div id="comment_638817" class="cm"> </div> <div id="post_rate_div_638817"></div> </div> </dd> </dl> </div> <div id="post_638746" class="xld xlda mbm"><dl class="bbda cl"> <dd class="m avt"><a href="http://club.oecr.com/space-uid-94751.html"><img src="http://www.oecr.com/uc_server/avatar.php?uid=94751&size=small" /></a></dd> <dt> <span class="y xw0"> </span> <a href="http://club.oecr.com/space-uid-94751.html" target="_blank" class="xi2">078280978</a><em id="author_638746"> 发表于</em> <span class="xg1 xw0">2010-4-13 12:30:12</span> </dt> <dd class="z"><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_638746"> <br /> <br /> 这样做应该是保证接收太阳光是直射的吧，黑色虽然可以吸光，但实际应该还有一部分光吸不到的。（这是个人认为）<br /> <br /> <br /> <br /> </td></tr></table> </div> <div id="comment_638746" class="cm"> </div> <div id="post_rate_div_638746"></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 class="pipe">|</span><a href="http://so.oecr.com" title="站内搜索" target="_blank" >搜索</a><span class="pipe">|</span><a 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