curvature of field


Also found in: Medical.

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.
References in periodicals archive ?
4 for WX 10x50 IF), while their Field Flattener Lens System compensates for a curvature of field across the entire field of view.
Viewing on 1x and 6x I noted no internal flare, astigmatism, spherical aberration or curvature of field.
Spherical aberration and curvature of field are two other things to look for you can find using the Zeiss test chart.