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Ultra-precise metal freeform mirror made at TNO Optics Manufacturing group.

The Optics Manufacturing Group in Space System Engineering department of TNO provides world class technical solutions for customer needs in the field of high performance metal freeform mirrors for high-tech applications.

The manufacturing of special freeform ultra-precision metal mirrors is our primary task. Within this field we focus on the production of high accuracy and low roughness freeform optics together with “plug and play” mounting solutions. In addition Optics Manufacturing also provides advice on the manufacturability and costs of your products, and conducts production process research.

Our services can be divided into metal diamond turning and ultra-fine polishing, coatings and metrology categories. Using these different expertise and TNO’s state-of-the-art machinery, TNO’s advice and products are commonly applied in space instruments, astronomy, scientific research, nano-photonics, semiconductor industry and high-tech industries. We are always looking for new challenges in which functionality and costs are key. We feel comfortable pushing the limits in optics manufacturing.

See us in “Behind the scenes at the TNO expertise group Optics” movie:



Type of Optics Aspheric mirrors, Freeform mirrors, Light-weighted optics, Parabolic mirrors, Plano, Prototypes

Services Assembly, Coating, High precision mounting features, Metrology, Opto-mechanical design, Polishing, Prototypes, SPDT

Materials Metals

Research Interests Diamond turning, MRF, Optics metrology

"Our next generation freeform metrology tool has arrived. With this newest stitching interferometer technology even more extreme and precise freeforms can be measured."

TNO location Delft, Postbus 155
2600 AD Delft
The Netherlands



Merijn Voets
Business Developer, Optics
M. +31623365284 P. +31888663338

Ton Maree
Sr. Business Developer Earth Observation
M. +31888661239 P. +31653220360

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