急求"LED发光光谱测量装置的设计"的文章,投影显示成像及图像处理

xiaziii 发表于 2005-2-1 21:46:00

应该是这样测量的吧

<img src="data/attachment/forum/dvbbs/2005-2/200521134554213.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'data/attachment/forum/dvbbs/2005-2/200521134554213.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

xiaziii 发表于 2005-2-1 21:51:00

一样的

<img src="data/attachment/forum/dvbbs/2005-2/20052113503364.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'data/attachment/forum/dvbbs/2005-2/20052113503364.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
<img src="data/attachment/forum/dvbbs/2005-2/200521135059362.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'data/attachment/forum/dvbbs/2005-2/200521135059362.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />

inter_ 发表于 2005-2-23 23:44:00

各位都是光学高手呀，心得很多吧，以后多多关照呀，

adamxiong 发表于 2005-2-25 23:15:00

xiaziii 能提供出处吗？我也想看全文学习一下

doucam 发表于 2005-7-25 19:06:00

請問xiaziii,D取多大的值?

prime 发表于 2005-7-25 21:21:00

好象是1米，这其实很好做，关键是测绝对波长能量分布难。要找标准光源，还要标定

红苹果 发表于 2005-7-26 16:49:00

都是高手，哈~

zeno 发表于 2005-11-26 00:56:00

<DIV align=center>LED测量</DIV>自从可以大批量生产多颜色、多种亮度的发光二极管（LED）以来，就需要精确测量其光学特性。<img src="http://www.bjlaser.com/index/articles/pic/image302.jpg"> LED测量一般采用两种方法：光度测量和辐射度测量。光度测量仅仅局限于可见光波段，如人眼的响应。而辐射度测量则不受人眼的限制。两种方法都可以表述LED的辐射功率和发光强度。辐射功率是LED在任何方向发射的所有功率（光通量），单位是流明或瓦。而发光强度是指向观察者方向的每单位立体角内照射到物体上的光通量，经常认为是沿着LED的轴线方向，单位是坎德拉。 <a href="http://www.bjlaser.com/" target="_blank" >http://www.bjlaser.com/</A>因为LED发光面独有的外形尺寸，导致其发光很难均匀化，测量标准至今没有很好地被规范。所以仔细考虑LED测试设备的设计和使用对准确完成LED的测试至关重要。测量LED总光通量最简单最便捷的方法就是使用积分球和Avantes公司的光谱仪。对于光学辐射测量来说，积分球是一种很简单的元件。积分球的内表面具有完美的散射性，光线在其内表面发生均匀反射。辐射光在内表面上经过多次反射后变得十分均匀，导致在球壁上任何一点的光辐射度都相同。我们公司提供的系统可用定标用卤素灯AvaLight-HAL-CAL-ISP进行标定。用AvaSoft-IRRAD光谱仪软件可以从测量到的光谱分布来计算其它参数，也可以进行绝对辐射测量。还可以计算、显示和存储被测光强度，单位为µWatt/cm2/nm。此外，在一个单独的窗口中还可以显示多达10个光参数：辐射量µWatt/cm2, µJoule/cm2，µWatt 或 µJoule，光度量Lux 或 Lumen；色坐标X, Y, Z, x, y, z, u, v和色温。<DIV align=center><img src="http://www.bjlaser.com/index/articles/LEDsetup.jpg"></DIV><DIV align=center>LED测量常用配置:</DIV><DIV align=center><TABLE medium none; BORDER-TOP: medium none; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-alt: solid windowtext .5pt; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt" height=152 cellSpacing=0 cellPadding=0 width=530 align=center border=1><TR><TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 77.4pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid" vAlign=top width=103>光谱仪</TD><TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 415.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=554 colSpan=2>AvaSpec-2048光谱仪，VA光栅（350-1100nm），50微米狭缝，OSC-350-1100消二阶衍射效应镀膜</TD></TR><TR><TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 77.4pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=103>软件</TD><TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 415.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=554 colSpan=2>AvaSoft-Full软件和AvaSoft-IRRAD应用软件</TD></TR><TR><TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 77.4pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=103>标定</TD><TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 207.65pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=277>AvaLight-HAL-CAL-ISP定标卤素光源</TD><TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 207.65pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=277>IRRAD-CAL-VIS(360-1100nm)辐射定标服务</TD></TR><TR><TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 77.4pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=103>光纤</TD><TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 415.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=554 colSpan=2>1根FC-UV600-2光纤（2米长，600微米芯径，SMA接头）</TD></TR><TR><TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 77.4pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=103>附件</TD><TD windowtext 0.5pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: medium none; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; WIDTH: 415.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 0.5pt solid; mso-border-left-alt: solid windowtext .5pt; mso-border-top-alt: solid windowtext .5pt" vAlign=top width=554 colSpan=2>AvaSphere-50-IRRAD-CAL积分球或AvaSphere-80-IRRAD-CALAvaSphere-LED-ADR(-80)适配器，适用于3，5，8mm LED</TD></TR></TABLE></DIV> 
[此贴子已经被作者于2005-11-25 17:03:13编辑过]

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光电工程师社区's Archiver

应该是这样测量的吧

一样的