英语词汇“curvature of field”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	curvature of field
释义	curvature of field curvature of field (field curvature) A minor aberration of a lens or mirror whereby an object lying in a plane perpendicular to the optical axis produces an image lying not on a plane but on a curved surface. If there is any astigmatism present there will be two curved focal surfaces. curvature of field [′kər·və·chər əv ′fēld] (optics) Error in the image of a plane object formed on a flat screen by an optical system when the best image lies on a curved surface. Also known as field curvature. curvature of field curvature of field Aberration of an optical system due to the obliquity of the incident rays of light relative to the optical axis. The image corresponding to a plane object lies on a curved surface. This aberration does not usually affect the eye, as the retina is itself curved. See Petzval surface.
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