Tuesday, October 13, 2009

Improving repeatability

Aligning M5 to M2 requires us to alternate between the wavefront camera & the alignment telescope. We found that the fold mirror used with the alignment telescope didn't always go back in a repeatable enough way so Eben came to our rescue once again.

The new scheme has the mirror attaching to the alignment telescope mount, instead of the stage assembly that the wavefront camera bolts on to - a much more reliable solution.

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