[AZ-Observing] Re: DCT mirror recoated
- From: Brian Skiff <bas@xxxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Mon, 25 Jul 2016 19:35:12 -0700
On Mon, 2016-07-25 at 19:04 -0700, Scott Rick wrote:
Hi Brian,
What are the rough looking blobs around the edges of the mirror?
Those are the attachments for the lateral supports ---
actually, the stuff they covered them with, which of course
are now aluminized as well. Because the mirror is so thin,
there are 120 actuators that attach to the back of the mirror
to control the shape, and another 36 of 'em around the edge.
\Brian
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