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Angular resolution - Wikipedia, the free encyclopedia (913 words) |
 | Resolving power or minimum resolvable distance is the ability of the optical components of a microscope or telescope to measure the angular separation of the points in the object that is being viewed. |
| The lens' aperture is a "hole" that is analogous to a two-dimensional version of the single-slit experiment; light passing through it interferes with itself, creating a ring-shaped diffraction pattern, known as the Airy pattern if the phase of the incident light is taken to be constant over the aperture. |
| The highest angular resolutions can be achieved by arrays of telescopes called astronomical interferometers: these instruments can achieve angular resolutions of 0.001 arcsecond at optical wavelengths, and much higher resolutions at radio wavelengths. |
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