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onkeyup="$('fj_btn').href='forum.php?mod=redirect&ptid=271497&authorid=0&postno='+this.value" onkeydown="if(event.keyCode==13) {window.location=$('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-271497-1-1.html" id="postnum1154504" 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="authicon1154504" src="static/image/common/online_member.gif" /> <em id="authorposton1154504">发表于 2015-8-27 09:47:00</em> <span class="pipe">|</span> <a href="http://bbs.oecr.com/forum.php?mod=viewthread&tid=271497&page=1&authorid=161218" 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=271497&extra=page%3D3&ordertype=1" class="show">倒序浏览</a> <span class="pipe show">|</span><a href="javascript:;" onclick="readmode($('thread_subject').innerHTML, 1154504);" 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_1154504"> <div align="center"><font color="#000"><strong>便携式现场检测光谱辐射亮度计</strong></font></div><div align="left"><font color="#000">由于微型光谱仪的发展，[color=rgb(68, 68, 68) !important]<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测试</a></font>光谱辐射的设备具有小型化的趋势。目前来说，JETI[color=rgb(68, 68, 68) !important]<a href="http://b.oecr.com/sell" target="_blank" class="relatedlink">产品</a></font>由于其结构紧凑，测试精准，受到很多著名[color=rgb(68, 68, 68) !important]<a href="http://b.oecr.com/company" target="_blank" class="relatedlink">企业</a></font>的青睐，如Philips，Osram，国内的科视，iCam等[color=rgb(68, 68, 68) !important]<a href="http://display.oecr.com" target="_blank" class="relatedlink">显示</a></font>、[color=rgb(68, 68, 68) !important]<a href="http://light.oecr.com" target="_blank" class="relatedlink">照明</a></font>厂商都采用JETI光谱辐射计作为品质监控的设备。</font></div><div align="left"><font color="#000">由于LED在光源与显示中具有越来越大的市场份额，而LED是窄带光源，在三刺激值滤光片的设备中就会增加很多测试的不精确因素。</font></div><div align="left"><font color="#000"><font color="#06699"><a href="http://club.oecr.com/data/attachment/album/201508/27/094412plp7eo122l2z6626.jpg%5C%22+target=%5C%22_blank" target="_blank"><img id="aimg_AH4ev" onclick="zoom(this, this.src, 0, 0, 0)" class="zoom" file="http://club.oecr.com/data/attachment/album/201508/27/094412plp7eo122l2z6626.jpg" onmouseover="img_onmouseoverfunc(this)" lazyloadthumb="1" border="0" alt="" /></a></font></font></div><div align="left"><font color="#000">以上是Z刺激曲线，如果两个窄带光源的带宽比较窄（黑线），可能三刺激值一样，但是它们具有完全不一样的色度。如果用光谱辐射计，可以完全知道其光谱分布，从而得到精确的色度与亮度值。</font></div><div align="left"><font color="#000">所以色度亮度的高精度测试最好是由分光辐射计来测试。</font></div><div align="left"><font color="#000"><font color="#06699"><a href="http://club.oecr.com/data/attachment/album/201508/27/094412cl50ufykezu2svki.jpg%5C%22+target=%5C%22_blank" target="_blank"><img id="aimg_Ap00K" onclick="zoom(this, this.src, 0, 0, 0)" class="zoom" file="http://club.oecr.com/data/attachment/album/201508/27/094412cl50ufykezu2svki.jpg" onmouseover="img_onmouseoverfunc(this)" lazyloadthumb="1" border="0" alt="" /></a></font></font></div><div align="left"><font color="#000">Jeti最新推出Spectraval系列产品就专门针对投影、显示以及照明市场的品管监控而研发的。旗下有两款型号：spectraval 1501与1511，两者都具备紧凑的结构。其中，1501必须要连接电脑，1511不需要连接电脑。这样，spectraval 1511可以为现场品控测试提供了便携的方案。无需要电脑，Spectraval 1511内置的显示屏可实现亮度，辐射亮度；xy 和 u′v′ 色度坐标；RGB值；主波长，色纯度；相关色温；显色指数；辐射光谱这些色度亮度参数的[color=rgb(68, 68, 68) !important]<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测量</a></font>。</font></div><div align="left"><font color="#000"> Spectraval系列产品可实现快速测试与高精度测量，校准采用的是紧凑的光谱仪技术与NIST可溯源校准。其光谱分辨率可达1nm，亮度测试范围可达0.1~150000cd/m2（A光源），如果是LED，最高可测到100000cd/m2。精度可达2%，而色度坐标的精度更是高达0.002。</font></div><div align="left"><font color="#000"> 在测试时间方面，Spectraval速度也得到提升，得益于2048的CCD像素阵列，更大的CCD可使曝光时间降低，同时，更高效的[color=rgb(68, 68, 68) !important]<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a></font>模块也提升测试速度。可以在1秒内测出100cd/m2的亮度与色度。</font></div><div align="left"><font color="#000"><font color="#06699"><a href="http://club.oecr.com/data/attachment/album/201508/27/094454tradxd338c3clryr.gif%5C%22+target=%5C%22_blank%5C%22+.=%5C%22font-family:+Tahoma,+Arial,+Helvetica,+snas-serif;+font-size:+14px;+line-height:+1.8em;" target="_blank"><img id="aimg_r3dS3" onclick="zoom(this, this.src, 0, 0, 0)" class="zoom" file="http://club.oecr.com/data/attachment/album/201508/27/094454tradxd338c3clryr.gif" onmouseover="img_onmouseoverfunc(this)" lazyloadthumb="1" border="0" alt="" /></a></font><font color="#06699"><a href="http://club.oecr.com/data/attachment/album/201508/27/094412d1hc8cvzibeensdv.gif%5C%22+target=%5C%22_blank%5C%22+.=%5C%22font-family:+Tahoma,+Arial,+Helvetica,+snas-serif;+font-size:+14px;+line-height:+1.8em;" target="_blank"><img id="aimg_u055f" onclick="zoom(this, this.src, 0, 0, 0)" class="zoom" file="http://club.oecr.com/data/attachment/album/201508/27/094412d1hc8cvzibeensdv.gif" onmouseover="img_onmouseoverfunc(this)" lazyloadthumb="1" border="0" alt="" /></a></font></font></div><div align="left"><font color="#000">1511内部布局 1501内部布局</font></div><div align="left"><font color="#000"> </font></div><div align="left"><font color="#000">这两款设备均采用平场凹面光栅，使设备的结构紧凑化的同时，大大提高光谱精度与降低杂散光。Spectraval 1511可提供电池版本，完全实现现场独立的品质监控。Spectraval系列可以通过不同的数据传输方案，使客户的系统最优化。</font></div></td></tr></table> <div class="ptg mbm mtn"> <a title="投影仪" href="misc.php?mod=tag&id=2271" 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