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TOPIC: Foucault tester

Blobrana

L

Posts: 131433

Date: Sep 1 13:04 2008

RE: Foucault tester	Permalink

first foucault testing Click to Play \| View Details __________________

Blobrana

L

Posts: 131433

Date: Apr 15 08:29 2008

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Ronchi test on 4.5" part I Click to Play \| View Details Ronchi test on 4.5" part II Click to Play \| View Details __________________

Blobrana

L

Posts: 131433

Date: Apr 8 20:21 2008

Ronchi test	Permalink

Ronchi test on a small telescope mirror Click to Play \| View Details In optical testing a Ronchi test is a method of determining the figure of a mirror used in telescopes and other optical devices. Read more __________________

Blobrana

L

Posts: 131433

Date: Mar 31 16:53 2008

Foucault tester	Permalink

Foucault tester Click to Play \| View Details A Foucault tester is a device to examine the quality of telescope mirrors . Though they can be build with simple tools and materials , these devices are pretty accurate . __________________

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