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1、Página1de11ZEMAXUsers'KnowledgeBase-http://www.zemax.com/kbHowtouseRayAiminghttp://www.zemax.com/kb/articles/11/1/How-to-use-Ray-AimingByNam-HyongKimPublishedon07/18/2005Thisarticleexplains:òWhatRay-aimingisòWhenitisneededandhowtouseitThisarticleincludesexamplesusingsample
2、lensfile.WhatisRay-aiming?TheRay-aimingisaniterativeraytracingalgorithminZEMAXthatfindsraysattheobjectthatcorrectlyfillthestopsurface,foragivenstopsize.Itisgenerallyonlyrequiredwhenthepupil,theimageofthestopasseenfromtheobjectspace,isconsiderablyaberratedorshifted/tilted.T
3、heRay-aimingoptionisspecifiedunderSystem>General>RayAimingmenu.WithoutRay-aiming,realraysfromtheobjectareaimedattheparaxialentrancepupil;theparaxialimageofthestopseenfromtheobject.ThesizeandthelocationoftheentrancepupilisreportedunderthegeneralsectionofthePrescriptionData(
4、Report>PrescriptionDatainthemainmenu).Iftherearenoopticsbetweentheobjectandthestopsurface,oriftheaberrationintroducedbythelensesbetweenthosesurfacesisnegligible,thentherealandparaxialmarginalrayheightatthestopsurfacewillbeveryclose,hencenopupilaberration.Inthiscase,Ray-aim
5、ingisnotrequiredandenablingitwillonlyslowdowntheraytracewithoutanyincreaseinaccuracy.OnlyuseRay-aimingwhennecessary!PupilAbberationFanTofindoutifasystemhassignificantpupilaberrationusethePupilAberrationAnalysisunderAnalysis>Fans>PupilAberration.Asaruleofthumb,ifthemaximump
6、upilaberrationismorethanfewpercent,Ray-aimingisgenerallyrequired.Thefollowingimagesshowthepupilaberrationplotforasystemwithsignificantpupilaberration.www.cadfamily.comEMail:cadserv21@hotmail.comThedocumentisforstudyonly,iftorttoyourrights,pleaseinformus,wewilldeletehttp://
7、www.zemax.com/kb/articles/11/1/How-to-use-Ray-Aiming/print/1114/10/2005Página2de11Ray-aimingOffRay-aimingOnExamplewithmoderatepupilabberrationOpentheDoubleGauss28degreefield.zmxsamplefileinZEMAX/Samples/Sequential/Objectivesfolder.www.cadfamily.comEMail:cadserv21@hotmail.c
8、omThedocumentisforstudyonly,iftorttoyourrights,pleaseinformus,wewilldeletehttp://www.zema
