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Foucault test of 400mm spherical mirror

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Uploaded by on Mar 25, 2011

In this test the knife edge is slowly moved into the beam (twice). The knife is moved with steps of 2.3 micron. Apart from a slighty turned down edge in the center, you can see no zones in the mirror. The black square you see is the mirror stand behid the mirror.

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Science & Technology

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Standard YouTube License

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  • That. Is. A. Spectacular. Mirror.

    Congratulations. I know that must have been very difficult to get the zones out of that.

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