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单词 rayleigh criterion
释义

Rayleigh criterion


Rayleigh criterion

[′rā·lē krī‚tir·ē·ən] (chemistry) The criterion for spontaneous pressure oscillations to accompany combustion, namely, that combustion progresses more rapidly or efficiently during the compression phase of the pressure oscillation than during the rarefaction phase. (optics) A criterion for the resolving power of an optical instrument which states that the images of two point objects are resolved when the principal maximum of the diffraction pattern of one falls exactly on the first minimum of the diffraction pattern of the other.

Rayleigh criterion


criterion, Rayleigh 

Observation first made by Rayleigh that the images of two point objects will be resolved when the central maximum in the diffraction pattern of one image coincides with the first minimum of the diffraction pattern of the other image. For a perfect eye, with a 2 mm pupil, this criterion corresponds to a theoretical tolerance in focusing equal to about 0.075 D. See Airy's disc; diffraction; limit of resolution.
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更新时间:2024/11/11 16:25:40