bath interferometer

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Kanadalainen
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bath interferometer

#1

Post by Kanadalainen »


I am putting together some plans for a bath interferometer.

https://www.youtube.com/watch?v=6KQAjmUC7KE

Just because it looks like an accurate way to measure mirror quality, to ridiculous tolerances. I am monitoring a chat group started by Dale Eason and others, they delve deep into the construction and physics of their set ups.

Cheers,

Ian
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
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Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

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STEVE333 United States of America
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Re: bath interferometer

#2

Post by STEVE333 »


Hey Ian - I don't know what a bath interferometer is, but, hopefully it will work well for you.

However, even if it didn't work it sounds like you would have a place for a bath. That can't be all bad! :D :D

Steve
Steve King: Light Pollution (Bortle 5)
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Kanadalainen
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Re: bath interferometer

#3

Post by Kanadalainen »


STEVE333 wrote: Mon May 13, 2019 5:09 pm Hey Ian - I don't know what a bath interferometer is, but, hopefully it will work well for you.

However, even if it didn't work it sounds like you would have a place for a bath. That can't be all bad! :D :D

Steve
:) :lol: :lol:

Steve, this bath would be mobile in three dimensions with an x, y and z coordinate motility. And while I'm cleaning up, I could check out whether my XT10's mirror surface is better than 1/4 wave P to V. :shock: :mrgreen:
Ian

Fracs: Stellarvue 70T f6; SW 120mm Esprit f7; "Mark Mk. II" - 60 mm Tasco f6; C80 frac f 11.4
SCT: C8 Edge f10 or f7 with reducer
Dob: 14.5" homebuilt strut dob (f4.5 ZOC mirror), Nexus II, Moonlite focuser
Mounts - Ioptron Skyguider pro, Astro Physics GTO900
Cameras and lenses - ZWO 2600 mc, 290 mm mini, Canon 60D modded with Rokinon 10mm 2.8; Rokinon 135mm f2

Skysafari 6 Pro, Astro Pixel Processor, Pixinsight - using Mac tablet and ASIair pro to run the AP rig.

"Mothers! It is there!" - Rafael Gonzales-Acuna, 2018.
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Altocumulus Scotland
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Re: bath interferometer

#4

Post by Altocumulus »


Wow - that went straight over the top of my brain cell.....I'll never look at baths in the same way again :D
Just call me Geoff....

I do what I do because I can, and because I want to.
It doesn't mean I know what I'm doing :mrgreen:
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BABOafrica Kenya
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Re: bath interferometer

#5

Post by BABOafrica »


I'll be posting my results for my bath test in a thread shortly.

Dale can give you all the info you need.

BABO
"In lumine tuo videbimus lumen."

Scopes: Stellarvue SV80 Raptor Carbon Fiber ED Doublet / Celestron SCT C8
Williams Optics 66mm APO / DIY 8" f/4 Newtonian astrograph / Nikon 180mm f/2.8
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Filters: ZWO 7nm NB set / ZWO LRGB set / ZWO Dual Band / Astronomics UHC
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