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IDEAL OPTICAL SYSTEMS
COMPUTATION OF CONSTANTS
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aberration absorption air film amplitude angle of incidence angular aperture astigmatism atomic axes axis collimator color components computed constant cosine crystal curvature curve density diffraction direction displacement distance electron energy entrance pupil equal equation exit pupil eyepiece Fabry-Perot interferometer Fermat's principle field film focal length focus formula Fraunhofer diffraction frequency Fresnel Fresnel diffraction fringes given glass grating illuminance index of refraction intensity interference bands interferometer lens lenses magnetic magnification maxima maximum measured Michelson mirror Newton's rings Nicol prism object observed obtained optical path optical system parallel path difference phase difference photographic plane polarized plate polarized light principal plane prism radiation radius ratio rays reflected resolving power right angles rotation shown in Fig sin2 slit sodium spectra spectral lines spectrometer spectrum spherical spherical aberration surface telescope theory thickness tion transmitted tube usually vector velocity vibration wave length wave normal width x-ray zero