PST etalon spacer

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swisswalter
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PST etalon spacer

Post by swisswalter » Fri May 15, 2015 4:16 pm

I read some where about the need of having to know the thickness of the spacers used on an etalon. As I have only one broken etalon of a Ha PST I measured the two spacers left on it.

using the mikroscope I find ~200 µm, using a JKA-feintaster I get an average of 204 µm
spacerpstetalon_sideview_withscale.jpg


hope that helps a little
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marktownley
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Re: PST etalon spacer

Post by marktownley » Fri May 15, 2015 7:36 pm

Informative as always Walter, thanks :)
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Valery
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Re: PST etalon spacer

Post by Valery » Sat May 16, 2015 1:00 am

Hi Walter,

Thank you very much for such an information. Very important!


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swisswalter
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Re: PST etalon spacer

Post by swisswalter » Sat May 16, 2015 5:49 am

Hi Mark, Hi VAlery

thank you very much, you are welcome. It is always interesting to look deeper into those things
Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

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