Jänchen, H.H.JänchenSchulz, U.U.SchulzGombert, A.A.Gombert2022-03-092022-03-091999https://publica.fraunhofer.de/handle/publica/333019Fresnel lenses for projection optics require a reduction of reflection losses in a wide wavelength and angular range. Their surface relief consisting of inclined microstructures with increasing inclination angle causes a reduction in AR- coating thickness form center to the edges and hence a spectral shift.enantireflective coatingsFresnel lensesmagnesium fluorideplasticsPMMAsub-wavelength structures620Reduction of reflection losses at PMMA Fresnel lensesconference paper