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Post Info TOPIC: Foucault tester


L

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RE: Foucault tester
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L

Posts: 131433
Date:
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L

Posts: 131433
Date:
Ronchi test
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Ronchi test on a small telescope mirror

S6L47T3PMZH0JLW8.jpg
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In optical testing a Ronchi test is a method of determining the figure of a mirror used in telescopes and other optical devices.

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L

Posts: 131433
Date:
Foucault tester
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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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