Talk:First-surface mirror

Physics Low‑importance

	Physics portal This article is within the scope of WikiProject Physics, a collaborative effort to improve the coverage of Physics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhysicsWikipedia:WikiProject PhysicsTemplate:WikiProject Physicsphysics articles
Low	This article has been rated as Low-importance on the project's importance scale.

‹See TfM›

Glass

	This article is within the scope of WikiProject Glass, a collaborative effort to improve the coverage of glass on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.GlassWikipedia:WikiProject Physics/Taskforces/GlassTemplate:WikiProject Glassglass articles
???	This article has not yet received a rating on the importance scale.

Photography: History

	This article is within the scope of WikiProject Photography, a collaborative effort to improve the coverage of photography on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.PhotographyWikipedia:WikiProject PhotographyTemplate:WikiProject PhotographyPhotography articles
???	This article has not yet received a rating on the project's importance scale.
	This article is supported by WikiProject History of photography.

Astronomy Low‑importance

	Astronomy portal This article is within the scope of WikiProject Astronomy, which collaborates on articles related to Astronomy on Wikipedia.AstronomyWikipedia:WikiProject AstronomyTemplate:WikiProject AstronomyAstronomy articles
Low	This article has been rated as Low-importance on the project's importance scale.

Untitled

Why is the title in plural? I think "First surface mirror" would be more appropriate (I added a redirect from there to here). Mumiemonstret (talk) 11:42, 15 December 2008 (UTC)[reply]

Since there was no outcry for keeping the plural title I was encouraged to do my first page move on Wikipedia. Hooray! Mumiemonstret (talk) 23:33, 26 December 2008 (UTC)[reply]

Spectrafocus Animation

I intend to describe first surface mirrors and the images obtained by reflecting a spectral beam off their modified planar surface to one where bumps, dips, and ripples create multicoloured fractal images from the spectrum Use of first surface mirrors described at www.spectrafocus.ca First surface mirrors sold as metallized polyester !,2,5,10 mil sheets and rolls. Dupont's band name "Mylar" refers to metallized polyester (metal poly). Please see warning regarding large sheets of metal poly at Legal at spectrafocus.ca````

James Webb mirror details

While James Webb's mirrors are made of polished Beryllium, they are coated with a thin layer of gold, which excels in reflecting IR light, which is then coated with a layer of glass, SiO2. The gold coating does not affect the mirror type being first-surface, but it is an important detail omitted here. The thin coating of glass seems like it would technically make it a second-surface mirror but maybe if it's thin enough, that's not the case?

--Mattpengelly (talk) 01:31, 6 January 2022 (UTC)[reply]