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src="static/image/filetype/pdf.gif" border="0" class="vm" alt="" /> 薄膜太阳能电池激光切割与masked beam及平顶光束整形资料: UVBEAM.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: 204.51 KB</li> <li>下载次数: 122</li> <li>上传会员: <a href="attachcenter-list.html?uid=10316" target="_blank" style="color:#FF9900">再也不能这样</a></li> <li>上传时间: 2008-08-08</li> <li>本站网址: <a href="http://forum.oecr.com/">forum.oecr.com</a></li> <li><a href="http://bbs.oecr.com/thread-73474-1-1.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=Mjk4OTR8ZjhkMjZiZjd8MTc2NjA3NTE4OXwwfDA%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://forum.oecr.com/plugin.php?id=attachcenter:page&aid=29894', '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://forum.oecr.com/plugin.php?id=attachcenter:page&aid=29894" size="50" /></p> </div> <div class="bm"> <div class="bm_c xld"> <b>薄膜太阳能电池激光切割与masked beam及平顶光束整形资料:</b><div class="postmsg">在使用532激光切割薄膜太阳能电池板上的硅层及金属层时，有报道说要使用圆形的masked beam。请问各位大大，什么是masked beam?是不是从高斯光束整形而来的平顶光束？我一知半解，不能确定，烦请高人点破。<br /> 顺便附上两份光束整形的资料。虽说都是关于准分子激光整形的，但可以参考。<br /> <br /> [<i> 本帖最后由 再也不能这样 于 2008-8-8 17:21 编辑 </i>]</div> <div class="postmsg">好文章，谢谢了，对我很有用处，但是对你不是很有用。<br /> 两篇文章都是讲的准分子激光整形，但是由于准分子本身是长方形光斑，所以用来做整形的两个镜片分别是两个轴的柱面镜阵列。也就是在一片镜上排列了多个小柱面镜。这些小柱面镜的焦距根据激光光束两个不同轴的发散角和在整个扩束系统中的距离位置不同，配合最后的一个透镜，形成整形扩束准直一体的系统。<br /> 对于圆形光斑，也有圆形的透镜阵列用于这个用途。他们的作用就是将光束分为多个光束分别聚焦/发散然后相互重叠，形成近似的均匀光斑。<br /> 还有一种新的东西就是衍射阵列，实际上可以认为是用光栅取代了透镜，每个透镜单元变得极为细小。通过计算机的计算，根据所需要进行的光斑转换，得到需要在镜片上刻画的光栅图形，然后采用粒子束或者其他方式在镜片上完成。这个目前价格上比较贵，但是好处是不仅仅是用来做均匀化，能更加自由的改变光斑。<br /> 以上的方式都需要光束直径比较大，所以在设备中的整个光路系统都需要进行设计。<br /> 而一般的简单办法是在比较好的高斯光斑中心放小的光阑，只取光斑中心的那个部分，这样也能得到近似均匀的光斑，问题是功率损失比较大。</div> <div class="postmsg">谢谢楼上的哥们！<img src="static/image/smiley/default/em17.gif" smilieid="46" border="0" alt="" /> <img src="static/image/smiley/default/em17.gif" smilieid="46" border="0" alt="" /> <img src="static/image/smiley/default/em17.gif" smilieid="46" border="0" alt="" /> <img src="static/image/smiley/default/em17.gif" smilieid="46" border="0" alt="" /> <img src="static/image/smiley/default/em17.gif" smilieid="46" border="0" alt="" /></div> <div class="postmsg">我也在找这些资料 楼主如果你再有其他资料请您告诉我啊！</div> <div class="postmsg">queshishide !<br /> 应该是很有前途的一种技术！<br /> 顶其！</div> <div class="postmsg"><i class="pstatus"> 本帖最后由 再也不能这样 于 2010-4-1 14:16 编辑 </i><br /> <br /> 薄膜太阳能电池激光刻膜时希望速度快，刻线尽量细，线条内要求效果均匀，边缘锐利，因此希望用平顶光束，且最好的方形平顶光束。通常做法是将高斯光束经光束整形器整形为平顶光束。但通常整形器的“有效平顶距离”(即输出光束保持平顶分布的工作距离范围)有限，因此给应用系统的设计带来很多不便，如一分二(一个激光器分出两路光提高刻膜效率)，一分四系统可能需要二个或四个昂贵的光束整形器。<br /> 据一些用户反映，将整形获得的平顶光束聚焦时，问题更严重。平顶光束的焦深小于高斯光束的焦深。稍稍离开焦点后平顶的效果即大打折扣。现在的薄膜太阳能电池玻璃基板尺寸动辄几米，在镀上TCO等膜层后因应力作用会使玻璃变形，刻膜划线时工作距离随之改变，脱焦可达一到两个毫米甚至更多。<br /> 一家名为Edge-Wave的德国公司生产的一系列激光器采用“innoslab”技术生产的激光器输出激光形貌即为方形平顶，其“有效平顶距离”及“平顶焦深”均大过光束整形器产生的光束，很适合刻膜应用。但目前市场上仅此一家公司生产此类激光器，价格昂贵。<br /> 本人做端泵激光器时发现通过调节端泵泵浦系统可获得接近平顶的输出。激光器同行们也许可以做做尝试。<br /> 对于焊接切割等应用，为防激光束失焦，通常会用机械滚轮臂、电感探测自动跟随式激光加工头，或光学测距自动跟随等方法保持工作距离恒定。但对刻膜应用，因玻璃材料测距难度较大，加上刻膜时速度很快，因而跟随难度较大。三维扫描头响应可能快些，但具体实现也不容易。<br /> 请内行人士做做分析想想办法。<br /> <br /> <a href="http://www.pishaper.com/index.html" target="_blank">http://www.pishaper.com/index.html</a><br /> <a href="http://www.edge-wave.de/edgewave_e/technologie_e.htm" target="_blank">http://www.edge-wave.de/edgewave_e/technologie_e.htm</a></div> <div class="postmsg">学习了，现在好像平顶光束整形的不多啊，国内的报道都是转化效率不高，上次在北京一个会议上听说可以设计出来效果很好的，但国内没有能加工的，国外需要几千美金的加工费，用的是好像是双镜片的结构</div> <div class="postmsg"><div class="quote"><blockquote>学习了，现在好像平顶光束整形的不多啊，国内的报道都是转化效率不高，上次在北京一个会议上听说可以设计出 ...<br /> <font size="2"><font color="#999999">dwx8468396 发表于 2010-4-1 15:14</font> <a href="http://bbs.oecr.com/redirect.php?goto=findpost&pid=636070&ptid=73474" target="_blank"><img id="aimg_iWNqz" 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></font></blockquote></div><br /> <br /> <br /> pishaper号称可以得到很高的透光率。</div> <div class="postmsg">没有用过PISHAPER ,很贵啊，不知道效果究竟如何？用过的说说看！另外是否有比较便宜一点的国外厂家的这种整形头推荐一下！</div> <div class="postmsg">学习学习学习学习学习学习学习学习学习学习学习学习学习学习学习学习<br /> </div> <div style="height200px;"></div> <ul class="xl xl2 cl" style="border-top: 1px #cccccc dashed;margin:5px 0 ;padding-top:5px"> <dl><b> 同一主题资料:</b></dl><dl class='icon'><img 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