2013-06-25Prof.Herbert GrossFriedrich Schiller University JenaInstitute of Applied PhysicsAlbert-Einstein-Str 1507745 JenaSolution of ExercisesLecture Optical design with Zemax for PhD-Part 99.1Achromatea)Calculate a classical achromate with the basic data:object at infinityfocal length f 10 mmimage side numerical aperture NA'=0.05-glass materials BK7 and SF6-wavelength used:d,F,CPerformance:1.spherical correction at the aperture boundary zero2.achromatic correction with identical image position for F and CIs the system diffraction limited on axisb)Describe the perfommance for a finite field angle of 2.c)If the glass SF6 is used instead of SF12,can a system with equivalent quality be obtained9.2 High-NA CollimatorAn achromatic system is typically diffraction limited for a numerical aperture not larger then NA =0.1.For a point on axis,by adding an aplanatic-concentric meniscus-shaped lens,the numerical aperturecan be increased by a factor correponding to the refractive index of the lens.This principle is shown inthe exercise 6.1aLoad an achromate with focal length f=100 mm from a vendors catalogue with a diameter ofat least 30 mm.Take the wavelength to =632.8 nm.Reduce the entrance pupil diameter to achievea diffraction limited system according to the Marechal criterion of Wms