# Optical train

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Optical_train
> Markdown URL: https://mediated.wiki/source/Optical_train.md
> Source: https://en.wikipedia.org/wiki/Optical_train
> Source revision: 1353682795
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

{{Short description|System of optical components to redirect beams of light}}
thumb|right|250px|An optical train showing the arrangement and angle of lenses and mirrors to guide the laser

An '''optical train''', also called an '''optical assembly''', is an arrangement of optical components (e.g. [lens](/source/lens)es, [mirror](/source/mirror)s, [prism](/source/Prism_(optics))s) to guide a [line of sight](/source/sightline) and/or a [laser](/source/laser) beam.<ref>{{cite book |title=Video Microscopy |author=Shinya Inoué |publisher=Springer Science & Business Media |isbn=9781475769258 |oclc=1066179097 |page=[https://books.google.com/books?id=0ajzBwAAQBAJ&pg=PA93 93] |date=2013}}</ref> For example, the position and angle of lenses may be adjusted to guide a laser through the path required. [Optical instrument](/source/Optical_instrument)s like [microscopes](/source/optical_microscope), [telescopes](/source/optical_telescope), and [DSLR](/source/DSLR)s all have optical trains that guide the incoming light towards a detector or the eye of an observer. The optical train of a telescope is commonly called an '''optical tube assembly''' ('''OTA''') or simply an '''optical tube'''.

==See also==
* [Optical path](/source/Optical_path)

==References==
{{reflist}}

{{optics-stub}}

Category:Optical devices

---
Adapted from the Wikipedia article [Optical train](https://en.wikipedia.org/wiki/Optical_train) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Optical_train?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.