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1、OpticalGeneralDesign8xtelescopeUniversity:ChangchunUniversitvOfScieneeandTechnologyFaculty:PhotoelectricEngineeringMajor:MachineandControlofTechnologyAndInstrumentNumber:I.Thefundamentalpropertiesoftelescopei)Thefullfieldview:=6ii)Thediameterofexitpupil:D=4
2、mmiii)Theeyerelief:P~10.5mnzTheresolvingpower:(p=gv)Thecoefficientofvignetting:K=0.5Thedistancebetweenreticleandtheemittingplaneofprism:a=10mmvii)Theprismandmaterial:Behanroof(k=5.7);material:K9;viii)Theeyepiece:2-25II.ThecomputingofeyepieceEyepieceisasigni
3、ficantproportiontothetelescope,butthedesignofeyepieceisnotindispensable,onlywhenwehavethespecialrequirement.i)Theconstructionofeyepiecehasbeengivenasthecondition:eyepiece2-25,givenbyTheenchiridionofopticalinstrumentdesignonpage294.DrawingITheconstructionofe
4、yepiece2-25Otherwise,thefundamentalparametersofeyepiece2・25havealsobeenofferedexceptforthedrawing,asfollows,15.597mm,2a)=64=5-685mm,D=4mmandsoforth.RDnDV0效66.6822.18-19.05562.37-26.1222.0179.071.57.40.555.20.58.41.51.73981.51631.51631.51631.73982&264.164.1
5、64.128.221.923.823.626.626.623.522.220.2ChartIThemainparametersofeyepiece2-25WecanfindthatthelocationoftheexitpupilisontheleftsideofthegeneralsystemfromthedrawingI.However,theexitpupillocatesontherightsidewhenbeingused,whichisequivalenttotheinversionoftheey
6、epiece・Therefore,thedata(Sf一'・685mm)jsuse(jstraightway,whichisthedistancebetweenthefinalfaceofeyepieceandthepointF.i)TheinversionofeyepiecegivenbytheenchiridionThedatawillbechangedonaccountoftheinversionofeyepiece・Forexample,thefirstrefractingfaceformerlybe
7、comesthelastfaceandthesecondrefractingfaceformerlybecometheseventhfaceandsoforth.Noteworthiness,thesignofdiameterofeveryrefractingfacechangesatthesametime.Thedataafterinversionisasfollows,RDn・79.0722.01・22.0126.12-62.3719.055-22.18-66.681.58.40.55.20.557.41
8、.51.73981.516311.516311.51631.7398ChartIIThedataafterinversionii)ComputingSfafterrefractionbyusingMATLABWeusethesoftwareMATLABforcomputingtheSf,whichisthedistancebetweenthebackfocalandthefinalrefractio
