Piston (optics)
id:
piston-optics-243-16630312
title:
Piston (optics)
text:
In optics, piston is the mean value of a wavefront or phase profile across the pupil of an optical system. The piston coefficient is typically expressed in wavelengths of light at a particular wavelength. Its main use is in curve-fitting wavefronts with Cartesian polynomials or Zernike polynomials. However, similar to a real engine piston moving up and down in its cylinder, optical piston values can be changed to bias the wavefront phase mean value as desired. As phase values can only vary from
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wiki
category slug:
encyclopedia
description:
original url:
https://en.wikipedia.org/wiki/Piston_(optics)
date created:
date modified:
2023-06-04T20:33:46Z
main entity:
{"identifier":"Q7198512","url":"https://www.wikidata.org/entity/Q7198512"}
image:
fields total:
13
integrity:
13