Astigmatism (optical systems)
id:
astigmatism-optical-systems-244-17005838
title:
Astigmatism (optical systems)
text:
An optical system with astigmatism is one where rays that propagate in two perpendicular planes have different foci. If an optical system with astigmatism is used to form an image of a cross, the vertical and horizontal lines will be in sharp focus at two different distances. The term comes from the Greek α- (a-) meaning "without" and στίγμα (stigma), "a mark, spot, puncture".
brand slug:
wiki
category slug:
encyclopedia
description:
Optical aberration
original url:
https://en.wikipedia.org/wiki/Astigmatism_(optical_systems)
date created:
date modified:
2023-09-13T12:23:21Z
main entity:
{"identifier":"Q2423400","url":"https://www.wikidata.org/entity/Q2423400"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/c/c1/Meridional%2BSagittalPlane.png","width":1568,"height":858}
fields total:
13
integrity:
15