Afocal system
id:
afocal-system-251-4110151
title:
Afocal system
text:
In optics, an afocal system (a system without focus) is an optical system that produces no net convergence or divergence of the beam, i.e., has an infinite effective focal length. This type of system can be created with a pair of optical elements where the physical distance d between the elements is equal to the sum of each element's focal length fi (d = f1+f2). A simple example of an afocal optical system is an optical telescope imaging a star, the light entering the system is from the star at
brand slug:
wiki
category slug:
encyclopedia
description:
Optical system that produces no net convergence or divergence of the beam
original url:
https://en.wikipedia.org/wiki/Afocal_system
date created:
date modified:
2024-04-06T01:07:26Z
main entity:
{"identifier":"Q383372","url":"https://www.wikidata.org/entity/Q383372"}
image:
fields total:
13
integrity:
14