EVENT 6 May 2026

Lunch lecture June hosted by TNO

The NASA IRTF Adaptive Secondary Mirror


About this event

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.

Spreker: 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.


1 June 2026


The Netherlands

Digital


References

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References

Mikroniek April 2026: Developments in…

The April issue of Mikroniek presents developments in dynamics. The main theme article introduces a bouncing stage concept that can circumvent actuator-force limits in precision positioning.

Read more
Intellectual property for engineers

Engineers working in high-tech solve complex technical problems every day. New algorithms, control strategies, hardware architectures, production methods and software tools are constantly being developed inside engineering teams.

Read more
Analysing the shock resistance of…

Medical devices are often mounted on mobile trolleys and must survive shocks during transport, handling and everyday use, such as the sudden impact when a wheel hits a doorstep – a shocking encounter.

Read more
The next generation of gas-foil…

A high-quality standardised gas foil bearing (GFB) programme for turbomachinery up to 100 kW electrical power is presented.

Read more