<p><a href="http://www.zemax.com/file_exchange/user/depth.zpl"><font size="2">depth.zpl</font></a>
<br/><font size="-2"><i>Bob Householder: April 1, 1999</i></font>
<br/><font size="-1">"Calculates depth of focus for the system based on several sources for the equation."</font></p><p><a href="http://www.zemax.com/file_exchange/index.html">http://www.zemax.com/file_exchange/index.html</a></p><p>这个是计算焦深的ZPL,计算景深也类似,自己参考着编一个吧</p>