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Optical resolutionChemistry

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Optical resolutionin microscope

Collimation is the proper alignment of the optical elements in a telescope, which is critical for achieving optimum results. Poor collimation will result in optical aberrations and distorted images. Not only is the alignment of the optical elements important, but even more crucial is the alignment of the optics with the mechanical tube: this is called opto/mechanical alignment.

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Optical resolutionof a lens

Optical resolutionformula

By analogy with optical observations, e.g. in astronomy, the term optical resolution in structure determination,\(d_{opt}\), is used to describe the expected minimum distance between two resolved peaks in an electron-density map.

Optical resolutionexample

This page titled 10.7: Optical resolution is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by Online Dictionary of Crystallography via source content that was edited to the style and standards of the LibreTexts platform.

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where σPatt is the standard deviation of the Gaussian function fitted to the Patterson origin peak, σsph is the standard deviation of the Gaussian function fitted to the origin peak of the spherical interference function, representing the Fourier transform of a sphere with radius 1 / dmin, and dmin is the nominal resolution.