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<div class="s"> <div class="ss"><div><span>导读： </span>今天跟大家带来的是“积分球”相关知识！希望各位光学人和学习光学专业的同学们好好学习一下！</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div> 今天跟大家带来的是“积分球”相关知识！希望各位光学人和学习光学专业的同学们好好学习一下！</div><div><br></div><div> 定义：用来进行特定光学<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测量</a>的具有反射内表面的器件。</div><div><br></div><div><p style="text-align: center;"><a href="data/attachment/portal/202008/17/150506jz3hau00b63iq7wq.jpg" target="_blank"><img src="data/attachment/portal/202008/17/150506jz3hau00b63iq7wq.jpg"></a></p></div><div style="text-align: center;"><br></div><div style="text-align: center;"> 图1：测量与光束空间性质无关的光功率的积分球。</div><div><br></div><div> 积分球是一种具有多种用途的光学器件，例如：</div><div><br></div><div> 测量<a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>二极管、<a href="http://light.oecr.com" target="_blank" class="relatedlink">发光</a>二极管或者灯管的光通量，测量光学元件的透射或反射率，甚至部分反射光，均匀照射器件。</div><div><br></div><div> 积分球（如图1）是一个空心球，具有漫反射的内表面，通常具有两个或多个小开口来引入光或者链接光电探测器，还有一些挡板来阻止光源直接照射到探测器上。这种结构会使光进入探测器前发生多次漫反射，因此到达探测器的光通量非常均匀，几乎由于光在空间或者偏振的特性无关：探测光功率只与总的入射光功率有关。这样可以测量激光二极管总的输出功率，即使在光束发散角很大的情况下。</div><div><br></div><div> 除了测量的目的，积分球还可以均匀照射一个装置。这在<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测试</a>数字成像装置时非常重要（例如CCD阵列）。</div><div><br></div><div> 理想情况下，在积分球内表面的涂层在需要的波长范围内都具有很高的反射率，并且反射为漫反射。如果积分球和小端口处的光学损耗很小，多次反射会导致在积分球内部具有很高的光强，从而具有很高的光学效率，即使积分球比光源和探测器的尺寸都大。</div><div><br></div><div><p microsoft="" yahei",="" simsun;="" background-color:="" rgb(255,="" 255,="" 255);="" text-align:="" center;"="" center;="" 255);"="" style="text-align: center; overflow-wrap: normal; margin: 0px; padding: 0px; color: rgb(143, 143, 143);"><a 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