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Metrology for XR & Freeform Optics

November 8, 2022 @ 9:00 am 4:00 pm EET

The purpose is to present the know-how and possibilities in metrology for XR and freeform optics in Finland. In addition, manufacturing and especially the needs for XR and freeform optics metrology are presented.

8:30 – 9:00 Registration at Photonics Center, Yliopistokatu 7, 80100 Joensuu, Finland
9:00 – 9:05 Opening – Caroline Amiot, Photonics Finland
9:05- 9:40 Traceable metrology for characterization of XR components & tools, Virpi Korpelainen, Mikes
9:40 – 10:00 Metrology capabilities of freeform optics at Senop, Kasper Honkanen, Senop
10:00 – 10:20 Waveguide metrology at Dispelix: methods and challenges, Léo Turquet, Dispelix
10:20 – 10:40 Metrology requirements for VR/XR devices Andrei Razumov, Varjo Technologies
10:40 – 11:00 Manufacturing and metrology of free-form micro-optical components by roll-to-roll UV-imprinting, Samuli Siitonen, Nanocomp
11:00 – 11:20 Advanced siloxane-based formulations and resin systems for AR/XR devices, Karim Honda, Inkron
11:20 – 12:35 Lunch at Photonics Center
12:35 – 12:55 Freeform optics: complex shapes lead into complex manufacturing and measuring processes, Juha Väyrynen, Karelia AMK
12:55 – 13:15 3D printed Photonics and free-form optics, Petri Karvinen, UEF
13:15 – 13:35 UEF Surface Metrology, Pertti Pääkkönen, UEF
13:35 – 14:00 Measurement of optical properties of materials, Erkki Ikonen, Aalto
14:00 – 14:20 Coffee break at Photonics Center
14:20 – 14:45 Metrology solution for centration measurement and surface shape validation of double-sided asphere, Patrik Langehanenberg, Trioptics
14:45 – 15:10 Methods for decentering measurements of double sided freeform lenses for XR applications, Reinhard Windermuth, Panasonic
15:10 – 15:35 Image Quality Metrology of XR/VR/AR devices, Thomas Kerst, OptoFidelity
15:35 – 16:00 Closing – Caroline Amiot, Photonics Finland

The event is free of charge but requires registration, which is binding. If the registered person is absent from the event and haven’t cancelled its participation by 3.11.2022 at the latest, the person will be responsible to cover 50€ fee, which will be invoiced to cover the arrangements costs.


  • VTT MikesTraceable metrology for characterization of XR components & tools
  • Aalto university – Metrology Research Institute Measurement of optical properties of materials
  • UEF – Institute of Photonics 3D printed Photonics and free-form optics and UEF Surface Metrology
  • KareliaFreeform optics: complex shapes lead into complex manufacturing and measuring processes
  • Millog / SenopMetrology capabilities of freeform optics at Senop
  • DispelixWaveguide metrology at Dispelix: methods and challenges
  • Nanocomp Manufacturing and metrology of free-form micro-optical components by roll-to-roll UV-imprinting
  • TriopticsMetrology solution for centration measurement and surface shape validation of double-sided asphere
  • Panasonic – Panasonic Factory Solutions EuropeMethods for decentering measurements of double sided freeform lenses for XR applications
  • Inkron
  • OptofidelityImage Quality Metrology of XR/VR/AR devices
  • Varjo TechnologiesMetrology requirements for VR/XR devices

VTT Mikes – Speakers Virpi Korpelainen – Senior Scientist
VTT Mikes administers the maintenance and development of the International System of Units, or SI system, at the national level. The VTT MIKES length group’s research and service activities cover a wide range from realization of national measurement standard instruments like frequency combs, stabilized lasers and primary interferometers, to more photonics industry related: quantitative microscopy, grating, freeform, surface topography, roughness, angle and co-ordinate metrology. VTT MIKES has long experience in the development of new measurement methods for high accuracy scientific and industrial metrology needs.

Aalto university – Speaker Erkki Ikonen – Professor
Metrology Research Institute is a joint laboratory between Aalto University and MIKES. It is involved in many national and international projects. Most of the research in the laboratory is currently carried out within the frameworks of EURAMET EMRP and EMPIR. The Institute is the national standards laboratory for optical quantities in Finland, maintaining national standards of optical quantities and carrying out calibrations at the highest level.

UEF – Speakers Pertti Pääkkönen – Senior Laboratory Manager and Petri Karvinen – Research Director
Institute of Photonics combines all research and education in optics and photonics at the University of Eastern Finland. Our multidiscipline institute is a unique collection of professionals in biology, chemistry, information technology, physics and applied physics, with the roots of photonics being the major research field in physics starting over 50 years ago, when the University of Joensuu was founded. Today Institute of Photonics forms a world’s top-notch research environment. Optical components and their precision manufacturing. 3D printed photonics and free-form optics.

Karelia University of Applied Sciences – Speaker Juha Väyrynen – Senior project manager precision engineering
The precision engineering group has good international customer references and connections to research institutes worldwide. Karelia is specialize in precision machining of hard to cut materials such as various metal alloys, metal-matrix materials, composites, plastics, noble metals, hardened tool steels, ferrite and molybdenum. Equipment capabilities include the high-precision CMM, CNC form measuring system and laser interferometer. Therefore we can solve most geometrical measurement with either contact and non-contact measurement.

Senop & Millog – Speaker Kasper Honkanen – Production Engineer
Millog specialize in high-quality custom optics and optical components and provide turnkey service according to customer preferences. We have a complete in-house service and manufacturing chain from design and prototyping to delivering ready-to-use devices. All our products are made in Finland.

Dispelix Oy – Speaker Léo Turquet – QC/Metrology manager
Dispelix design and manufacture the best diffractive waveguide displays in the world.

Nanocomp Oy – Speaker Samuli Siitonen, CTO
Nanocomp, with over 20 years of experience in micro- and nano-optics, is the frontrunner and technical leader in the field. We have manufacturing facilities in Europe and mainland China as well as local offices in Japan, Hong Kong and Taiwan. The HQ and R&D center are both located in Finland. We offer our clients one-stop solutions from design to mass production by using our exclusive roll-to-roll manufacturing technique. Our key product, known as front light guide, is applied to reflective displays, like EPD and LCD. It is unique in terms of optical performance enabling superior contrast and wider color gamut. Other customized lightguides and light management films for different purposes are also available from Nanocomp. You can apply our products into a wide range of applications across several industries, such as interior decor in automobiles, smart surfaces, displays of any kind and biometric identification.

Trioptics – Speaker Patrik Langehanenberg, Division Manager MPO – Metrology solution for centration measurement and surface shape validation of double-sided asphere, (Abstract)
Trioptics develop and produce the widest range of optical measurement and manufacturing systems. In this way we enable the development, quality control and production of lenses, lens systems and camera modules. In the field of optical measurement, we create standards instead of just fulfilling them.

Panasonic – Speaker Reinhard Windermuth
Panasonic Factory Solutions Europe, headquartered in Ottobrunn, near Munich, provides industrial products, solutions and services in Europe. The company’s portfolio covers production equipment for the electronic industry, software solutions, welding robots and automated manufacturing solutions across a broad range of industries.

Inkron Oy – Speaker Karim Honda, Business Coordinator 
Inkron, a Nagase Group Company, develops and manufactures advanced siloxane-based formulations and resin systems for Optical Devices, Opto Packaging and Printed Electronics. Inkron’s core technology is centered around siloxane resins designed and synthesized in-house with advanced formulation knowhow. These optically clear resins are thermally and optically stable providing a perfect platform for the targeted applications. Advanced formulation steps facilitate meeting the various application-specific needs.

OptoFidelity – Speaker Thomas Kerst, Product Manager, PhD
Since OptoFidelity was founded in 2005, we have been dedicated to developing the best-performing automation products for testing innovative technologies. With expertise in AR/VR, touch displays, and smartphone refurbishment, our team of optical engineers can assist you with any testing challenges. We work with you throughout the entire product life-cycle to save time and money while helping your team accomplish high-volume production of a high-performance product.

We strive for continuous growth and have had the opportunity to work with some of the market leaders in smart device applications. We employ over 250 true tech experts globally. Although headquartered in Tampere, Finland, OptoFidelity offers local support on three continents: Asia, Europe, and North America.

Varjo Technologies – Speaker Andrei Razumov
Varjo makes the highest-immersion virtual and mixed reality products and services for advanced VR users. Varjo’s retinal resolution devices are used to train astronauts, pilots, and nuclear power plant operators, design cars, and conduct pioneering research.


Photonics Finland

Photonics Center

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PREIN – Photonics Research and Innovation flagship

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Futura (F100) – UEF Campus (nearby Photonics Center)

Yliopistokatu 7
Joensuu, Finland
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