Abstract
THE ‘modulation contrast microscope’ is a new type of imaging system with which transparent or phase objects can be visualised with a clarity and contrast equal to, or greater than, that of other light microscope systems. A bright field microscope is readily converted into a modulation contrast microscope by the addition of an aperture slit before the condenser and a modulator after the objective in a plane conjugate to the slit, the Fourier plane (Fig. 1). The modulation contrast microscope makes visible phase gradients, optical gradients and surface slopes.
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The erratum article can be found online at https://doi.org/10.1038/257626a0
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HOFFMAN, R., GROSS, L. The modulation contrast microscope. Nature 254, 586–588 (1975). https://doi.org/10.1038/254586a0
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DOI: https://doi.org/10.1038/254586a0
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