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NEW OPTICAL SYSTEMS
NEW OPTICAL INSTRUMENTS
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A1ry aberration curves aberration figure aberration function amplitude angle angular spherical aberration aperture ratio approximately astigmatism axial distance axis Bouwers calculation camera centre of curvature circle of confusion co-ordinates coefficients coma compute concentric mirror system concentric system corrector corresponding described deviation diagram diameter diaphragm diffraction diffraction figure diffraction pattern distance h effect entrance pupil equal exit-pupil eye piece field of view fieldglass focal distance focal length focal plane focal point formula geometrical optics given image plane image point intensity intersection lens lenses light distribution longitudinal chromatic aberration luminosity magnification marginal rays microscope missing disc numerical aperture object point object principal plane obtained optical system paraxial perpendicular phase grating phase strip photograph radius ray tracing refracting surface refractive index relative aperture represented resolving power sagittal rays Schm1dt ScHM1DT-camera second Schm1dt-system Sm1th spectra spherical mirror symmetry telescope thickness third order aberration wave front