Talk:Adaptive optics

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Impact of Adaptive Optics in Astronomy[edit]

Suggest adding a section that gives an overview of how Adaptive Optics has improved Astronomical observation in recent years. The article gives a good account of the technique but does not mention what impact it has had. For example, exoplanet imaging was not possible from earth-bound telescopes without AO, and detailed imaging from earth of features on planetary moons, e.g. Titan, has been improved. Tony (talk) 16:53, 31 October 2011 (UTC)[reply]

New reference for tip-tilt correction found[edit]

Can someone please check the relevance to this article? Tip-Tilt Correction for Astronomical Telescopes using Adaptive Control — Atelierelealbe (talk) 07:39, 19 September 2011 (UTC)[reply]

Image sugestion from another article[edit]

I think that this is a good example of what does atmosphere to the picture. An animated image of the Moon's surface showing the effects of Earth's atmosphere on the view —Preceding unsigned comment added by Multimotyl (talk • contribs) 22:49, 19 October 2009 (UTC)[reply]

History?[edit]

Wasn't the sodium guide star method developed by the American government and was classified until it was independently discovered by french astronomers?

The need for a reference[edit]

Could someone who understands this please mention the need for a reference point earlier in the article? At the moment there's no discussion of it at all until it's just casually mentioned as if the reader knew about it all along... Evercat 13:21, 5 August 2005 (UTC)[reply]

Recommended sources[edit]

These were added to the article with comment "I believe these are reasonable references on adaptive optics, but I don't know where to put them as inline references. Maybe someone else can do that." But what we need are citations; a list of possible sources that are not actually cited inline doesn't help much. And wikipedia is never a source. Dicklyon (talk) 03:30, 14 August 2008 (UTC)[reply]

http://en.wikipedia.org/wiki/Adaptive_optics

http://ao.osa.org/abstract.cfm?uri=ao-13-2-291

http://www.eas.caltech.edu/engenious/win03/emeritus.pdf

http://www.iop.org/EJ/article/0049-1748/13/6/A13/QEL_13_6_A13.pdf

http://oralhistories.library.caltech.edu/117/01/OH_Bridges_W.pdf

http://pdf.aiaa.org/GetFileGoogle.cfm?gID=20084&gTable=mtgpaper

http://ao.osa.org/ViewMedia.cfm?id=23938&seq=0

Freeman Dyson's 1975 paper certainly should be added to the references. Photon noise and atmospheric noise in active optical systems. Optical Society of America, Journal, vol. 65, May 1975, p. 551-558. https://ui.adsabs.harvard.edu/abs/1975JOSA...65..551D/abstract — Preceding unsigned comment added by 2601:243:1202:D9F0:79E4:374B:5749:FD16 (talk) 01:56, 21 February 2022 (UTC)[reply]

Ferrofluid mirror[edit]

Is this for real or just snake oil? If it's for real it should probably be mentioned in the article.
Morphing mirror could clear the skies for astronomers
Rees11 (talk) 11:05, 1 June 2009 (UTC)[reply]

There's a big "white spot" in the article[edit]

viz: This technology is a very desired spyware too (for spy-satellites). You dont believe it? A look into the Patents (and a request to the market of such things!) will teach the doubters. Why the article handles that as an secret?? Is it an encyclopedia here, or a wartime-propaganda-newspaper?
oh boy ... V. —Preceding unsigned comment added by 91.14.247.173 (talk) 01:22, 20 May 2010 (UTC)[reply]

I doubt there's any conspiracy to keep this information out of the article – it's probably just that no-one's taken the time to add it. Feel free to contribute as you see fit, being sure to cite a reference. A reliable source that commented on the patents would be preferable to one of the patents themselves. Adrian J. Hunter^{(talk•contribs)} 09:56, 20 May 2010 (UTC)[reply]

File:Laser Towards Milky Ways Centre.jpg to appear as POTD soon[edit]

Hello! This is a note to let the editors of this article know that File:Laser Towards Milky Ways Centre.jpg will be appearing as picture of the day on June 11, 2012. You can view and edit the POTD blurb at Template:POTD/2012-06-11. If this article needs any attention or maintenance, it would be preferable if that could be done before its appearance on the Main Page so Wikipedia doesn't look bad. :) Thanks! —howcheng {chat} 22:32, 8 June 2012 (UTC)[reply]

Picture of the day

A laser shoots towards the centre of the Milky Way from the Very Large Telescope facility in Chile, to provide a laser guide star, a reference point in the sky for the telescope's adaptive optics (AO) system. AO technology improves the performance of optical systems by reducing the effect of atmospheric distortion. AO was first envisioned by Horace W. Babcock in 1953, but did not come into common usage until advances in computer technology during the 1990s made the technique practical.Photo: Yuri Beletsky, ESO

Archive – More featured pictures...

Merger proposal[edit]

I propose that Atmospheric correction be merged into Adaptive optics. I think that the content in the first article can easily be added to the 'Other use' section of this article. 2pem (talk) 18:24, 21 February 2013 (UTC)[reply]

"Atmospheric correction is the process of removing the effects of the atmosphere on the reflectance values of images taken by satellite or airborne sensors." This seems to be the opposite direction (down, instead of up) from that used for astronomy, but otherwise the article doesn't say anything more. Gah4 (talk) 04:09, 27 July 2017 (UTC)[reply]

Not just mirrors[edit]

The article states that adaptive optics use deformable mirrors. There are also systems that use moveable lenses (these are adaptive optics, not active optics) and refractive correctuion (i.e. a moveable glass plate). AO is now within teh reach of amateur astronomers. The article needs to be brought up to date by someone with better knowledge than I have of how these lens systems work. [[1]] [[2]] Stub Mandrel (talk) 20:38, 26 July 2017 (UTC)[reply]

Do you mean systems with a single movable lens or glass plate? That sounds similar to the vibration reduction systems now popular for SLR camera lenses. The system normally used for adaptive optics has many independently movable mirrors that combine to make one very large mirror. That would be harder to do with lenses. For mirrors, you put the actuator behind the mirror. Also, it is hard to change the refraction of a lens, but easy to change the reflection of a mirror. For lenses, you could do it with something flexible, like the lens in our eyes, but again, why when mirrors are so much easier. Gah4 (talk) 04:14, 27 July 2017 (UTC)[reply]

Same Concept, Slightly Different for Lasers in Material Processing[edit]

Lasers in Material Processing also use adaptive optics on the fly during operation, not necessarily to account for wave deformations (as laser beams don't have too much of that I believe) but for adjustment of depth for piercing and sometimes beam width in order to switch from piercing to cutting mode. Seems that it would deserve a little more elaboration here. For lasers there are also possibilities to control the actuator to tilt the reflecting mirror piece (or segments) powered piezo-electrically (just found the information, not entirely sure what it means), as well as by water/air pressure. Thoughts? ^[1]Ivangiesen (talk) 07:41, 14 February 2019 (UTC) — Preceding unsigned comment added by Ivangiesen (talk • contribs) 07:38, 14 February 2019 (UTC)[reply]

References

^ https://www.thefabricator.com/article/lasercutting/laser-optics-special-delivery

Proposed split out of 'In astronomy' section[edit]

The following discussion is closed. Please do not modify it. Subsequent comments should be made in a new section. A summary of the conclusions reached follows.

The result of this discussion was no consensus. Nrco0e (talk · contribs) 02:12, 9 March 2021 (UTC)[reply]

Could split out Adaptive optics in astronomy so it can be expanded with eg : History section, Cost effectiveness, notable installations, research ... - Rod57 (talk) 08:36, 4 October 2019 (UTC)[reply]

Does it need an actual split? That is, do things need to be removed from here? Otherwise, write Adaptive optics in astronomy with the sections mentioned, which might not overlap so much with this one. Gah4 (talk) 10:11, 4 October 2019 (UTC)[reply]

Agree with Gah4. Much more content could be added to the astronomy section, but for right now I think that is sufficient for summary style coverage. Praemonitus (talk) 17:52, 24 October 2020 (UTC)[reply]

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

Proposed External Link[edit]

I just published an article on adaptive optics in the RP Photonics Encyclopedia: https://www.rp-photonics.com/adaptive_optics.html As I believe this will be quite helpful to many, and presents far more in-depth information than the Wikipedia article (while still being quite understandable), I propose that someone includes an external link to that.

RPaschotta (talk) 08:58, 30 May 2023 (UTC)[reply]

[1] ttps://www.thefabricator.com/article/lasercutting/laser-optics-special-delivery

[1]