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- W4234996918 abstract "Some of the light intensity distributions calculated in the first paper of this series have been observed experimentally with the aid of a macroscopic set-up. Because of a peculiarity of the human eye, a degree of contrast which is far from optimum will be satisfactory for practical purposes.The theoretical investigation begun in the first paper is continued. A measure of contrast is defined by analogy to Michelson’s measure of visibility of fringes. An expression for this is derived for the case of a very narrow phase annulus filled with light except for a narrow zone along each edge.The possibility of measuring the phase shift introduced by an object, with the aid of phase contrast equipment, is discussed." @default.
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- W4234996918 date "1950-09-01" @default.
- W4234996918 modified "2023-09-29" @default.
- W4234996918 title "An Extension of Toraldo’s Theory of Phase Contrast II*" @default.
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- W4234996918 doi "https://doi.org/10.1364/josa.40.000576" @default.
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