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    只看楼主 倒序阅读 楼主  发表于: 2013-01-19
           最近闲的无聊,看zemax的macro 下面有个宏里自带的macro,原样附下,讨论下标记为 ****************************的作用,为什么要以渐晕为判断标准,这个渐晕的真正作用是干什么的?附下RAYV()->如果无渐晕则为0,否则为渐晕面的编号。(0 if ray was not vignetted,else vignetted surface number.valid only after a RAYTRACE or RAYTRACEEX call)。若大神赐教,小弟感激流涕············· X8Fzs!L`  
    `7\H41%\pp  
    macro 正文:········· :3O5ET'1  
    ! centroid.zpl <h@]Ri  
    ! vY_eDJ~'  
    ! Written by Kenneth Moore 9/1/92 xNIGO/uI~  
    ! Added TIMER function 4/18/96 ot }6D  
    ! @Z q[e   
    TIMER 0m A(:"  
    ! (hN?:q?'  
    ! The delta controls how many rays will be traced. A *VDVC0R  
    ! delta of .025 will trace a 80 x 80 grid in the pupil. X3yS5wh d(  
    ! mX;H((  
    delta = .025  n}OU Y  
    ! >vAN(3Idu  
    print "This program computes the chief ray coordinates," y42#n  
    print "centroid coordinates, and middle coordinates for" `[Sl1saZ$S  
    print "the primary wave spot at each field position." S/7l/DFb  
    maxfield = maxf() +GeWg` \=  
    if maxfield == 0 then maxfield = 1 )i-gs4[(QN  
    n = nsur() (:7a&2/M  
    f = 1 :j,}{)5=  
    label 1 9yL6W'B!  
    hx = fldx(f)/maxfield > c:Zx!  
    hy = fldy(f)/maxfield +?AW>&68y  
    raytrace hx,hy,0,0 3AeH7g4<  
    format 10.4 x<>YUw8`  
    print U=QA  e  
    print "  X Field    = ", fldx(f), (NaK3_  
    print "  Y Field    = ", fldy(f) J@Yj\9U  
    print "  X Chief    = ",rayx(n), J>h;_jA  
    print "  Y Chief    = ",rayy(n) BIj   
    xraymax = -9e9 wE6A 7\k%  
    yraymax = -9e9 ShGp^xVj  
    xraymin =  9e9 $3\,h; y  
    yraymin =  9e9 +`}o,z/^  
    xraytot = 0 FmD +8=  
    yraytot = 0 q.T:0|  
    numray = 0 P=gJAE5  
    numrayattempt = 0 x0<^<D&Q  
    px = -1 - delta X8R1a?  
    label 2 ;;Tq$#vd  
    px = px + delta vyU!+mlc  
    py = -1 - delta Yt{&rPv,  
    label 3 QBihpA 1;  
    py = py + delta m\-PU z&C  
    rad = px*px + py*py >lLo4M 3  
    if rad <= 0.9999999 B^q<2S;  
            raytrace hx, hy, px, py U=m=1FYaG  
            numrayattempt = numrayattempt+1 9/3;{`+[a  
            if !rayv(n)                                              **************************** %{'4. ,  
                    numray = numray + 1 >];"N{ A  
                    x = rayx(n) eaAPKx  
                    y = rayy(n) GFL-.? 0  
                    if (x < xraymin) then xraymin = x #pA[k -  
                    if (x > xraymax) then xraymax = x e=>% ^F  
                    if (y < yraymin) then yraymin = y 7I >J$"  
                    if (y > yraymax) then yraymax = y (STx$cya  
                    xraytot = xraytot + x fp;a5||5  
                    yraytot = yraytot + y Y[G9Vok VX  
            endif 8zmv 5trt  
    endif 8x{Hg9  
    if py < 1.0 then goto 3 e U;jP]FA  
    if px < 1.0 then goto 2 Y /lN@  
    if numray ti9}*8  
            format 14.8 P%)b+H{$h  
            print "  X Centroid = ",xraytot/numray, 7'eh)[T  
            print "  Y Centroid = ",yraytot/numray hW' HT  
            print "  X Middle   = ",(xraymax+xraymin)/2, '9q6aM/&  
            print "  Y Middle   = ",(yraymax+yraymin)/2 c<jB6|.=2  
            format .0  SFpQ#  
            print "  ",numray, " out of ", numrayattempt," rays made it through." 'n4u-pM(nB  
    else q-IWRb0j%a  
            print "  No rays made it through!" vGN3 YcH  
    endif % wL,v.}  
    f=f+1 Xw^X&Pp  
    if f<= nfld() then goto 1 ik\S88|  
    print Pfan7fq+  
    print "All field positions done!" 1JeJxzv>C  
    FORMAT 0.1 SdI1}&  
    print "Elapsed time ", ETIM(), " seconds." w~N-W8xNR  
     
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    离线kimclps
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    只看该作者 1楼 发表于: 2013-01-24
    centroid的chief ray定義為通過光束中心(而非stop中心)的光線,其位置會受漸暈 =l,#iYJP8  
    的影響,因此須知道漸暈才能算出chief ray位置。
    离线moth
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    只看该作者 2楼 发表于: 2013-01-27
    回 kimclps 的帖子
    kimclps:centroid的chief ray定義為通過光束中心(而非stop中心)的光線,其位置會受漸暈 k =|K|  
    的影響,因此須知道漸暈才能算出chief ray位置。 (2013-01-24 14:06)  zq=&4afOE  
    vX.]hp5~  
    Kimclps兄果然学识过人,受教了·····
    离线kimclps
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    只看该作者 3楼 发表于: 2013-01-29
    不敢當,互相切磋。
    离线junel
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    只看该作者 4楼 发表于: 2014-06-21
    受教了 J@gm@ jLc