[ATM] sub-apeture maskutov corrector

[tom bouthillier]

I'd like to see anything you have, particularly on a sub-aperture design. I'm attaching a work in progress. I'm OK with a parabola on the back side of the corrector mirror element as I can null test it and figuring it should not be a big problem. Any comments or improvements are welcome.
A far as the corrector not being a pure sphere on a full corrector maskutov design. I can attest to that. I had made a 7 inch design published by John Gregory. After testing all the surfaces as a sphere, I still need to do some fine tuning on the corrector. It's been excellent for planetary observing.
Thanks
 



> Date: Mon, 9 Apr 2007 21:22:15 +0200> From: dlwebb at canit.se> To: athenabout at hotmail.com> CC: atm at atmlist.net> Subject: Re: [ATM] sub-apeture maskutov corrector> > > I have some Oslo designs, including a couple of Maksutov> designs. I have not worked on the Maks for some time, but> could offer what I have. Please note I have switched over> to Osloedu (Slackware distribution of Linux), and the len> files do not necessarily transfer seemlessly between this> and Windows SoloLT.> > Perhaps ever more interesting, did anyone ever write> software to solve the ROC for the surface profiles of> the Mak corrector? The last time I recall discussing on> this list about Maks, it sounded like the optimal Mak> corrector was not actually spherical, at least one of> the surfaces was improved by introducing an aspheric> deformation on at least one surface (Simak???), which you> can add to Osloedu or OsloLT, but I have never had luck> trying to optimize for this. Adding an aspheric could be> an iterative process, assuming no one has gotten round to> writing software that includes deformation constants.> That being said, I recently encountered another optics> design program (fabulously expensive) that included a> function that calculates and adds Schmidt corrector> polynomial coefficients to a pre-defined optical system.> I would not be surprised if this appears in Oslo, and> who knows, maybe even something for Maks correctors.> > Dominic-Luc Webb> > > I wondering if anyone has looked at the performance of these types of> telescopes. I'm looking for a OSLO design ( or similar) for a> klevtsov (TAL) design so that I can compare the performance. I'm also> seeing some contradictory statements on a new Vixen--- does it use the> klevtsov design or a simple sub-aperture maskutov design ?> > _________________________________________________________________> > Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy!> > http://spaces.live.com/spacesapi.aspx?wx_action=create&wx_url=/friends.aspx&mkt=en-us> > _______________________________________________> > ATM mailing list http://www.atmlist.net/> >> 
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