The Principles of Optics |
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absorption Amer amount angle aperture stop approximately astigmatism axis beam brightness camera cell Chap chromatic color color temperature computed cross hairs curvature curve density determined developed diameter diffraction distance elements emulsion energy entrance pupil equal equation exit pupil exposure field film filter focal length focal point fringes glass illumination incident indicated infinity instrument Jour Lambert's law lamp lens lenses light magnifying power material measured method microscope mirror monochromatic negative Nicol prism normal numerical aperture object space observer ocular Optical Soc optical system ordinary photoelectric photographic photometer plane plate polarized position principal points prism procedure produced quartz radiation radius reflected refraction refractive index relative aperture represented resolving power result retina rotated selenium sensitivity shown in Fig slit spectral spectrum spherical aberration stereoscopic surface telescope temperature thickness tion tube ultraviolet usually visual wave front wave length