<P>在水平方向上数码镜头对线状分辩率图案的成象，其每个线宽恰好站用一个象素，我们就称在水平方向上选用的<FONT face="Times New Roman">CCD</FONT>与数码镜头在分辩率上是相配的<FONT face="Times New Roman">; </FONT>在垂直方向上也可同样理解之。这样定义保正了<FONT face="Times New Roman">CCD</FONT>在最少象素总数下，恰好能分辩清象的细节。可见这种定义是合理的。<o:p></o:p></P>
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<P 12pt; TEXT-INDENT: 42.1pt; mso-char-indent-count: 4.01">可计算出图中<FONT face="Times New Roman">CCD</FONT>的象素总数：<o:p></o:p></P>
<P 12pt 0cm 0pt 21.4pt; TEXT-INDENT: 17.75pt; mso-char-indent-count: 1.69; mso-para-margin-top: 12.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: .0001pt; mso-para-margin-left: 2.03gd">设<FONT face="Times New Roman">CCD</FONT>的<FONT face="Times New Roman"> M=1mm</FONT>，<FONT face="Times New Roman"> N=1mm</FONT>。镜头象方分辩力<FONT face="Times New Roman">=15</FONT>线对<FONT face="Times New Roman">/</FONT>毫米，现计算其象素总数如下：<o:p></o:p></P>
<P 1cm"><FONT face="Times New Roman">d=1/(2*</FONT>镜头象方分辩力<FONT face="Times New Roman">)=1/30=0.03333(</FONT>毫米<FONT face="Times New Roman">/</FONT>每黑白线对<FONT face="Times New Roman">)<o:p></o:p></FONT></P>
<P 1cm">可见与该镜头相配的<FONT face="Times New Roman">CCD</FONT>最小感光单元象素尺寸<FONT face="Times New Roman">m2*n2=0.03333*0.03333</FONT>毫米<o:p></o:p></P>
<P 1cm"><FONT face="Times New Roman">CCD</FONT>象素总数<FONT face="Times New Roman">=1/(0.03333)*1/(0.03333)=900</FONT>象素<o:p></o:p></P>
<P 1cm">如果镜头鉴别率是<FONT face="Times New Roman">150</FONT>线对<FONT face="Times New Roman">/</FONT>毫米，<FONT face="Times New Roman">CCD</FONT>感光面<FONT face="Times New Roman">M=4.8mm</FONT>，<FONT face="Times New Roman">N=3.6mm</FONT>。<o:p></o:p></P>
<P 1cm"><FONT face="Times New Roman">d=1/(2*</FONT>镜头象方分辩力<FONT face="Times New Roman">)=1/300=0.003333(</FONT>毫米<FONT face="Times New Roman">/</FONT>每黑白线对<FONT face="Times New Roman">)<o:p></o:p></FONT></P>
<P 1cm"><FONT face="Times New Roman">CCD</FONT>象素总数<FONT face="Times New Roman">=4.8/(0.003333)*3.6/(0.003333)= 1920000</FONT>象素。<o:p></o:p></P>
<P 1cm">这就是说分辩率是<FONT face="Times New Roman">150</FONT>线对<FONT face="Times New Roman">/</FONT>毫米的镜头，可配<FONT face="Times New Roman">1/3</FONT>英寸<FONT face="Times New Roman">200</FONT>万象素的<FONT face="Times New Roman">CCD</FONT>。<o:p></o:p></P>
<P 21pt; TEXT-INDENT: 7.35pt">由上面的计算可知，为使摄象头与<FONT face="Times New Roman">CCD</FONT>相配，需知道<FONT face="Times New Roman">CCD</FONT>的感光面尺寸，由“<FONT face="Times New Roman">CCD</FONT>应用技术”一书的<FONT face="Times New Roman">168</FONT>页表<FONT face="Times New Roman">8-3</FONT>有各种规格的<FONT face="Times New Roman">CCD</FONT>感光面尺寸如下表<FONT face="Times New Roman">1<o:p></o:p></FONT></P>
<P 1cm; TEXT-ALIGN: center" align=center><B normal"></B><B normal"><o:p></o:p></B> </P>
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<P 0cm; TEXT-ALIGN: center" align=center><B normal"><FONT face="Times New Roman">1</FONT></B><B normal">英寸</B><B normal"><o:p></o:p></B></P></TD>
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<P 0cm; TEXT-ALIGN: center" align=center><B normal"><FONT face="Times New Roman">2/3</FONT></B><B normal">英寸</B><B normal"><o:p></o:p></B></P></TD>
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<P 0cm; TEXT-ALIGN: center" align=center><B normal"><FONT face="Times New Roman">1/2</FONT></B><B normal">英寸</B><B normal"><o:p></o:p></B></P></TD>
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<P 0cm; TEXT-ALIGN: center" align=center><B normal"><FONT face="Times New Roman">1/3</FONT></B><B normal">英寸</B><B normal"><o:p></o:p></B></P></TD>
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<P 0cm; TEXT-ALIGN: center" align=center><B normal"><FONT face="Times New Roman">1/4</FONT></B><B normal">英寸</B><B normal"><o:p></o:p></B></P></TD></TR>
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<P 0cm; TEXT-ALIGN: center" align=center><B normal"><FONT face="Times New Roman">12.8*9.6<o:p></o:p></FONT></B></P></TD>
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<P 0cm; TEXT-ALIGN: center" align=center><B normal"><FONT face="Times New Roman">8.8*6.6<o:p></o:p></FONT></B></P></TD>
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<P 0cm; TEXT-ALIGN: center" align=center><B normal"><FONT face="Times New Roman">6.4*4.8<o:p></o:p></FONT></B></P></TD>
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<P 0cm; TEXT-ALIGN: center" align=center><B normal"><FONT face="Times New Roman">4.8*3.6<o:p></o:p></FONT></B></P></TD>
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<P 0cm; TEXT-ALIGN: center" align=center><B normal"><FONT face="Times New Roman">3.6*2.7<o:p></o:p></FONT></B></P></TD></TR></TABLE>
<P 1cm">由表就可查出各种规格的<FONT face="Times New Roman">CCD</FONT>感光面尺寸：<FONT face="Times New Roman">M</FONT>和<FONT face="Times New Roman">N</FONT>值。<o:p></o:p></P> 希望我的解答能够帮助你 这方面的问题最好到光学设计版去 <STRONG><FONT face=Verdana color=#61b713>yukerain<FONT color=#000000>是个好老师！值得仰视。谢谢！</FONT></FONT></STRONG> 谢谢楼上各位的提示,我也在找这方面的资料. <p>你的是什么镜头 ？</p> 虚心学习 ```俺是新手 以后得多向前辈们学习学习 镜头设计的时候本身就应该是针对CCD大小以及象素来设计的，
两者一定要求匹配，否则就是不合理的设计 上面说的很完整了,补充一下,镜头与CCD的波段也应该匹配. 一般在显微应用方面才会考虑CCD像素 与镜头分辨率的问题。
普通的应用比较简单。
如果是一般标准制式相机，就是分辨率在30多万象素的，用普通的工业镜头即可，比如常见的computar的fa镜头，
如果是搭配百万象素的机型，对图像要求比较高，建议选择优秀的镜头，比如日本腾龙，kowa，德国施奈德等等。
http://www.deltavision.com.cn/gs.asp?previd=500492&nowmenuid=500462
除非是成本控制要求，那种百八十元的塑料镜头还是不要考虑的好。 谢楼主分享！！！！！！！！！！！！！！！！！ 多谢多谢
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