Lecture11. - Aberrations Monochromatic Lecture 11 Spherical...

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Lecture 11 Aberrations • Monochromatic Spherical Aberration – Coma – Astigmatism – Field curvature – Distortion Chromatic Spherical Aberration • Remember: The non paraxial beams intersect earlier How can we get rid of it ? • Coma: principle planes are not planes • Field curvature: focus plane is curved • Astigmatism
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Chromatic Aberration Caused by dispersion Focal length depends on wavelength axial = n i " 1 ( ) # $ Lateral C.A. The size of the images is different Achromatic doublets Let’ s use a lens combination: We need to have For d=0 For Yellow: Material properties Characterization of the dispersion Material properties Dispersive Power V Abbe Number What happens when you use identical material ?
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8.8. Mirrors • Planar Mirror In a planar mirror and normal incidence just the direction of the light propagation is changed. This has one important consequence: We change from a right handed coordinate system to a left-handed one (inversion) Inversion by a mirror
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This note was uploaded on 08/06/2008 for the course PHYS 352 taught by Professor Dierolf during the Fall '04 term at Lehigh University .

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Lecture11. - Aberrations Monochromatic Lecture 11 Spherical...

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