2013-01-05Prof.Herbert GrossFriedrich Schiller University JenaInstitute of Applied PhysicsAlbert-Einstein-Str 1507745 JenaSolution of ExercisesLecture Optical design with Zemax-Part 666.1Triplet.6.2Schmidt telescope6.3Retrofocus lens6Correction6.1TripletA classical Cooke triplet with object in infinity,entrance pupil diameter 20 mm,spectal sampling linesd,F,C and the dataSurfTypeRadiusThicknessGlassDiameterConicOBJ STANDARDInfinityInfinity00STANDARD22.013593.258956SK16192STANDARD-435.76046.00755103STANDARD-22.213280.9999746F2STO STANDARD20.291924.750409STANDARD79.68362.952076SK1606STANDARD-18.3953342.20778IMA STANDARDInfinity36.3400is given.a)Optimize the system with the required data:finite object distance 150 mmentrance pupil diameter 6 mmwavelengths:450,550,650 nmfield height 12.5 mmoverall site (total track)from first surface until image plane:210 mmperformance diffraction limitedb)Increase the numerical aperture until the diffraction limit is violated.Solutiona)Layout of the starting system:1/11After changing the data to the required numbers and establishing the merit function with TOTR 210we get after optimization of only the radii and the image distance the result.The perfomance is nearto the diffraction limit.Lens Data EditorEdit Solves View HelpSurf:TypeCommentRadiusThicknessGlassSemi-DiameterOBJInfinity150,0000012.5000008,67894963,25895583.83034652Standard16.6470276.00755113.2459149Standard-11.222880.99997461.98347218.4222517V4.75040891.88946605Standard26.3260472.95207563.2413931Standard-16.33795④192.03103V3.5362524IMAStandard15.9593323Faggaength->0.4500000.5500000.65000012.50=Now in a second step,also the distances between the lenses are allowed to be changed.To getreliable results,the minimum air thickness is set to be 0,5 mm in the merit function.An additional fieldpoints in the zone with y=8.8 mm is introduced to control the correction in the intermediate field sizeThe result is now quite good.Lens Data EditorEdit Solves Vlew HelpSurf:TypeCommentRadiusThicknessSemi-DiameterStandardInfinity150.0000012.5000001Standard37.2691153.2589558SK164.39534052Standard1688.829115.670985V4.15916403Standard-27.08787V0.99997462,1926301Standard32,1958057.8170258V2,14235065Standard108.818682.9520756SK163,45189646Standard-26.00624④179.30098V3.6900695IMAStandardInfinity13.966735