📄 opt_f2r.htm
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<HTML> <HEAD> <TITLE>/</TITLE> <META NAME="GENERATOR" CONTENT="HTML-TOOLBOX "> </HEAD> <BODY bgcolor="#FFFFF0"> <HR WIDTH="100%"></P> <CENTER><P><FONT COLOR="#000000"><FONT SIZE=+3>Cross-linked m-file</FONT></FONT></P></CENTER> <CENTER><P><FONT COLOR="#000000"><FONT SIZE=+1></FONT></FONT></P></CENTER> <CENTER><P><FONT COLOR="#000000"><FONT SIZE=+2>opt_f2r.m</FONT></FONT></P></CENTER> <CENTER><P><FONT COLOR="#000000"><FONT SIZE=+1>Located in:</FONT></FONT></P></CENTER> <CENTER><P><FONT COLOR="#000000"><FONT SIZE=+1>/home/bjorn/matlab/Optical_bench</FONT></FONT></P></CENTER> <P><HR WIDTH="100%"></P> <P><FONT COLOR="#000000"><FONT SIZE=+2>Function synopsis</FONT></FONT></P> <P><FONT COLOR="#000000"><FONT SIZE=+1> [opt] = opt_f2r(opt_type,opt_spec) </FONT></FONT></P> <P><HR WIDTH="100%"></P> <P><FONT COLOR="#000000"><FONT SIZE=+2>Function comments</FONT></FONT></P> <pre> % % OPT_F2R Thin lens focal width to lens curvature radius. % F - focal width, N refractive index. </pre> <P><HR WIDTH="100%"></P> <P><FONT COLOR="#000000"><FONT SIZE=+1>All the cross references in the source m-code of opt_f2r.m</FONT></FONT></P> <pre> function [r] = opt_f2r(f,n) % [opt] = opt_f2r(opt_type,opt_spec) % % OPT_F2R Thin lens focal width to lens curvature radius. % F - focal width, N refractive index. if nargin ~= 2, help opt_f2r; ok = 0; return; end; % Scool-book formula for thin lens: % 1/F = (n_g-1)(1/r1-1/r2) % We take it as a symetrical lens (r2 = -r1): %1/F = (n_g-1)(2/r1) r = f*(n-1)*2; </pre> <P><HR WIDTH="100%"></P> <P><I><FONT COLOR="#0000FF"><FONT SIZE=+1>Written by B. Gustavsson 13:27 29/1 2003 <IMG SRC = "file:/home/bjorn/matlab/Local/Tools/htmltool/gifs/copyright.gif" ></FONT></FONT></I></P> <P><I><FONT COLOR="#0000FF"><FONT SIZE=+1>E-mail:</B><A HREF = "mailto:bjorn@irf.se">bjorn@irf.se</A></H4></FONT></FONT></I></P> ⌨️ 快捷键说明
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