Focal cloud
id:
focal-cloud-237-16694120
title:
Focal cloud
text:
A focal cloud is the collection of focal points of an imperfect lens or parabolic reflector whether optical, electrostatic or electromagnetic. This includes parabolic antennas and lens-type reflective antennas of all kinds. The effect is analogous to the circle of confusion in photography. In a perfect lens or parabolic reflector, rays parallel to the device's axis striking the lens or reflector all pass through a single point, the focal point. In an imperfectly constructed lens or reflector, ra
brand slug:
wiki
category slug:
encyclopedia
description:
Aspect of a lens or reflector
original url:
https://en.wikipedia.org/wiki/Focal_cloud
date created:
date modified:
2024-01-16T11:32:21Z
main entity:
{"identifier":"Q5463842","url":"https://www.wikidata.org/entity/Q5463842"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/3/36/Focal_cloud.jpg","width":496,"height":413}
fields total:
13
integrity:
15