NEWS 11 January 2026

Lunch lecture June hosted by TNO

The NASA IRTF Adaptive Secondary Mirror. Speaker: Arjo Bos, Senior Scientist & Expertise Lead Optomechanics

TNO and partners have been working on an Adaptive Secondary Mirror (ASM) for the NASA Infra-Red Telescope Facility (IRTF). This project provided the first on-sky demonstration of TNO’s ASM technology. The ASM is designed to retrofit the passive M2 and consists of a Ø244mm convex aspherical mirror shell, actuated by 36 hybrid variable reluctance actuators mounted on a lightweighted backing structure.

The ASM was shipped February 2024, where performance was tested in the lab in Hilo, Hawaii. The IRTF ASM saw ‘first light’ on telescope on the 23rd of April, already achieving stable closed-loop performance that was diffraction limited during the first night of operations.

Speaker: Arjo Bos, Senior Scientist & Expertise Lead Optomechanics

Company: TNO, optomechatronics department

Date: 1 June 2026

Time: 12:02pm

Location: Teams

Please send an email to info@dspe.nl if you are interested in following this lecture.

References ...

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