Making a Deformable Mirror

Chapters:
00:00 Intro
00:15 Visit to SCHOTT AG
01:38 Adaptive Optics explained
07:56 DIY deformable mirror design
10:10 About NEG ZERO glass-ceramic
11:40 Building a deformable mirror
14:45 Magneto-motive force and power dissipation
18:54 Interferometric measurement using Wavefront Pro
24:24 Making and mounting the ZERO face sheet
27:15 Measurements on ZERO face sheet
28:58 Extro

More information on Wavefront Pro on the website:
https://wavefrontpro.com/
Wavefront Pro was developed by Jaco Verster in close cooperation with Chromar Tecnology:
https://www.chromar.co.za/products/equipment/
Huygens Optics does not have commercial affiliations with either of these companies.

IRTF telescope (NASA/University of Hawaii):
https://irtfweb.ifa.hawaii.edu/
Photo credits: Afshin Darian - Flickr: NASA Infrared Telescope Facility, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=16891979

TNO deformable mirrors:
https://www.tno.nl/en/digital/space/ground-based-astronomy/deformable-mirrors/

SCHOTT ZERODUR:
https://www.schott.com/en-gb/products/zerodur-p1000269
Since filming on the premises was not permitted this video shows stock footage.
A small correction to the maximum diameter of parts that can be processed: this diameter is not 6m but generally speaking 4.5m.

More info on NEG's zero expansion glass named "ZER0":
https://www.neg.co.jp/en/products/zero-cte/index.html

MMT Arizona (BTW, its not a multiple mirror telescope any more, the current name is now the acronym): https://www.mmto.org/instrument-suite/adaptive-optics-system/

Adaptive optics image of the Giant Magallan Telescope AO system:
https://giantmagellan.org/adaptive-secondary-optics/

ESO telescope image from:
https://www.eso.org/public/teles-instr/technology/adaptive_optics/

All music written by JJM Vleggaar and performed by Arno Aerts, John Maasakkers, Matthieu Cleijne, Leon Steuns and Liesbeth de Bakker. This video contains instrumental versions of:

11:36 Summer in E; 24:23 Floating (abreviated/instruments only); 30:24 More to Light (Trippy Joint Remix)

"Not a fluke" is a sample taken from a @lockpickinglawyer video.