Re: Alternatives to glass pushing

Dan Doner (dan@archimedes.lance.colostate.edu)
Fri, 31 Mar 1995 10:46:29 -0700 (MST)

I did a considerable amount of reading up on the possibility of a spun mirror. My conclusion: if you wanted to look straight up mercury would be fine, but don't even consider getting an optical quality mirror from any epoxy-like substance. Hmmm. I bet an f/20 10" would probably perform okay though ;)

Just my $0.02 worth,

Dan

On Fri, 31 Mar 1995, Chuck Knight wrote:

> About a year ago (Feb '94) Scientific American did an article on spun
> mercury mirrors and their optical quality. "Amateur Scientist" showed
> how to spin a respectable quality mirror on a record player in that same
> issue. Has anyone tried this? This certainly seems like the right place
> to ask... :-)
>
> I spun a 5" mirror of polyurethane, but never got around to silvering
> it...is it possible to silver polyurethane?
>
>

------------------------------------------------------------------------ Dan Doner | Office: 126A Glover (Engineering south) College of Engineering | Phone: (303) 491-1557 Colorado State University | dan@lance.colostate.edu |

<a href="http://www.lance.colostate.edu/~dan/index.html">Dan</a>