欧旭锋 发表于 2005-3-17 02:00:00

红外透镜讨教



<P>设计要求为F/1,半视场为4。8度，焦距为50，</P>
<P>可以用两个锗透镜，其中一面为非球面来达到该要求吗？</P>



huntersun 发表于 2005-3-18 17:16:00



能，今早做了一个，忘了你的角度，，还为相面尺寸奇怪呢，这个5.4度，度数小会更好的。<img src="data/attachment/forum/dvbbs/2005-3/200531891640672.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/2005-3/200531891640672.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />



huntersun 发表于 2005-3-18 17:22:00



MTF<img src="data/attachment/forum/dvbbs/2005-3/20053189224930.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/2005-3/20053189224930.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />



huntersun 发表于 2005-3-18 17:23:00



Spot<img src="data/attachment/forum/dvbbs/2005-3/200531892329503.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/2005-3/200531892329503.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />



欧旭锋 发表于 2005-3-18 22:54:00



孙兄到底还是厉害呀，一个非球面就能做到，小弟佩服。不过你的后截距有多大呀？



欧旭锋 发表于 2005-3-19 00:23:00

还有，探测器前的保护玻璃是怎么设定的呢？望指教！

huntersun 发表于 2005-3-19 02:58:00

<P>320x240的都行，，，你这个角度还小，，很简单。</P><P>后截距够的放心。。。不过其实你可以不用自己设计，</P><P>上次跟你说了加工你不好联系的，没人愿意给你做，</P><P>还不如直接在我们这做，机械也可以帮你设计，包括装配。</P><P>这么简单的设计又不收你设计费用。</P><P>像你这样投入和产出不成比例。</P><P>那是锗窗口，要看探测器成像面的位置。</P>

fulm 发表于 2009-7-11 15:03:38

谢谢谢谢谢谢惺惺惜惺惺
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