Grism
id:
grism-322-633584
title:
Grism
text:
A grism is a combination of a prism and grating arranged so that light at a chosen central wavelength passes straight through. The advantage of this arrangement is that one and the same camera can be used both for imaging and spectroscopy without having to be moved. Grisms are inserted into a camera beam that is already collimated. They then create a dispersed spectrum centered on the object's location in the camera's field of view. The resolution of a grism is proportional to the tangent of the
brand slug:
wiki
category slug:
encyclopedia
description:
Optical element that reflects and diffracts light
original url:
https://en.wikipedia.org/wiki/Grism
date created:
date modified:
2023-10-31T18:48:23Z
main entity:
{"identifier":"Q489349","url":"https://www.wikidata.org/entity/Q489349"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/4/4c/Grism_principle.svg","width":512,"height":384}
fields total:
13
integrity:
15