Warning This site is not recommended for Internet Explorer browsers. Please use another web browser to get a better experience.

Safran Reosc World leader in high performance optomechanical systems

Safran Reosc designs innovative instruments dedicated to Astronomy, Space, Defense and Laser Industry. Our optomechanical components (mirror, lenses assemblies) meet the most demanding requirements of international scientific programs for world-wide customers (ESO, DGA, IABG, OHB, Airbus, Thales) and for the main world Space Agencies (ESA, KARI, JAXA, ISRO, NSPO)

Our expertise

Opto-Mechanical Engineering

We design high performance systems:
- Optical design (Code V, Zemax, ASAP)
- Mechanical design (Catia, ANSYS)
- Thin Film design
- Metrology & Test Bench design

Precision Optics Fabrication

We polish, control and coat high precision optics (plane, spherical, aspherical or free-form) to the nanometer accuracy, with a significant differentiating factor for large-size products (capacity up to 4 meter diameter).
We provide thin-film optical coatings adapted to high-energy laser, space, astronomy, defense and semiconductor applications from micro coating to coating of large optics.

High Precision Integration

We assemble, integrate, bond, clean, test high precision opto-mechanical systems in our Class 100 room for Space & Industry application

High Precision Optics Machining & Polishing

We polish optics for high performance systems for the Space, Astronomy and Laser Industries. We machine, lightweight and polish glass or vitroceramic substrates.
We are also the Leader in large & precision SiC mirror polishing & coating. We also developped our own R-SiC polishing layer, alternative to CVD layer. Space & Cryo qualified (ESA)
For all these materials, we can achieve the nm accuracies from plano, spherical, aspherical and free form surfaces for diameters up to 4 meter.

Metrology & Surfacing stations solutions

Capitalizing on its renowned expertise in high-precision optical fabrication, Safran Reosc offers surfacing and metrology solutions for high precision optics, equipped with its image analysis software.

High precision Metrology

Safran Reosc offers Metrology solutions from standardized interferometric test bench, deflectometry, to stitching method to control plano and free form surfaces to the nm accuracy, for optics diameter from some mm to 4 meter.

High Precision Coating

We coat optics for the Space, Astronomy and Laser industries: Infrared : Filters, AR, Dichroic, Vis-NIR Filters, AR, Polarizer, Dichroic, Linear Filters, Detectors coating (AR, Pixelated filters), Mirrors (Al, Gold, Silver, Dielectrics), Laser coating (AR, HR, Polarizer), Metallic thermal barrier coating, Sub-wavelength photonic filters, UV, Polishable coating

Key Figure
Annual Revenue
35 M€

In 2021

Employees
170

58% ENGINEERS & MANAGERS /10% PhD’s / 39 Y. AVERAGE AGE

Export Sales
70 %

>50% R&D ACTIVITY

Latest Press Releases

Our rating on gender equality

0 88 / 100

Criteria
  • 1.

    Gender pay gap

  • 2.

    Allocation of individual increases

    38/40

  • 3.

    Difference in the distribution of promotions

    35/35

  • 4.

    Number of employees increased upon return from maternity leave

    15/15

  • 5.

    Parity among top 10 earners

    0/10

According to the French law of September 5, 2018, and its application decree of January 8, 2019, on "Freedom to choose your professional future" (Liberté de choisir son avenir professionnel), companies have to measure five gender equality indicators and publish their overall score. The primary aim of this law is to eliminate compensation discrepancies between men and women.
Safran Reosc pictures gallery
A new “Factory 4.0” to make primary mirror segments for the Extremely Large Telescope
A new “Factory 4.0” to make primary mirror segments for the Extremely Large Telescope
A new “Factory 4.0” to make primary mirror segments for the Extremely Large Telescope
© Cyril Abad / CAPA Pictures / Safran The new 5,000 square meter (54,000 square foot)…
Nitrogen Filling of an Infrared Measuring device (Assembly Integration Test)
Nitrogen Filling of an Infrared Measuring device (Assembly Integration Test)
Nitrogen Filling of an Infrared Measuring device (Assembly Integration Test)
© Christel Sasso / CAPA Pictures / Safran A technician fills with liquid nitrogen the…
Spectrophotometric measurements
Spectrophotometric measurements
Spectrophotometric measurements
© Christel Sasso / CAPA Pictures / Safran The Safran Reosc teams use spectrophotometry to…
Metrology
Metrology
Metrology
© Christel Sasso / CAPA Pictures / Safran Adjustment of the alignment of a part on an…
Interferometric measurements on bench
Interferometric measurements on bench
Interferometric measurements on bench
© Christel Sasso / CAPA Pictures / Safran The technicians use a system for splitting a…
Ionic machining
Ionic machining
Ionic machining
© Christel Sasso / CAPA Pictures / Safran A technician prepares the installation of a large…
Polishing robot: primary mirror (silicon carbide) of EUCLID telescope.
Polishing robot: primary mirror (silicon carbide) of EUCLID telescope.
Polishing robot: primary mirror (silicon carbide) of EUCLID telescope.
© Christel Sasso / CAPA Pictures / Safran EUCLID is a space telescope for studying dark…
Femtosecond miror for the giant Apollon laser
Femtosecond miror for the giant Apollon laser
Femtosecond miror for the giant Apollon laser
© Christel Sasso / CAPA Pictures / Safran The Apollon laser is a French high-intensity…
E-ELT Mirror Segment
E-ELT Mirror Segment
E-ELT Mirror Segment
© Roland Geyl / Safran A prototype segment of the European Extremely…
Gaia telescope mirror
Gaia telescope mirror
Gaia telescope mirror
© Daniel Linares / Safran Highly aspheric mirror shape installed on Gaia…

Safran Reosc a 80 year legacy

Safran Reosc site

Safran Reosc Headquarter
Headquarters

Avenue de la Tour Maury 91280 Saint-Pierre-du-Perray

France

48° 37' 20" N , 2° 30' 46" E

Certificates and Agreements

STUDIES, PRODUCTION, MAINTENANCE OF OPTICAL, OPTOMECHANICAL & OPTRONICAL SYSTEMS, EQUIPMENTS & COMPONENTS.

Any questions about Safran Reosc?

Contact us
  • © Safran
  • © ESO/L. Calçada/ACe Consortium
  • © Daniel Linares / Safran
  • © Roland Geyl / Safran
  • © Christel Sasso / CAPA Pictures / Safran
  • © Cyril Abad / CAPA Pictures / Safran