Talk:Active optics

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Astronomy Mid‑importance

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Missing info

Dear authors,

Sorry, but this article does not answer the most exciting question, namely: how do the actuators know in which direction to turn the mirrors? It would be great if this info could be added. — Preceding unsigned comment added by 92.74.118.83 (talk) 08:20, 15 October 2020 (UTC)[reply]

Can we confirm JWST uses active optics

Can we confirm JWST uses active optics ? It has 7 actuators on each of 18 primary mirror segments, and some actuators on secondary and tertiary mirrors. - Rod57 (talk) 12:08, 21 February 2022 (UTC)[reply]