# Schott and Safran Reosc awarded mirror contract for ESO's Extremely Large Telescope

Contracts were signed for the manufacture of the 39 m primary mirror of the European Southern Observatory's Extremely Large Telescope. Schott will produce blanks of the mirror segments, and Safran Reosc will polish, mount and test the 798 hexagonal segments.

- Type: Contract
- Announced: 2017-05-31
- Where: Garching, Germany, Germany
- Status: announced
- Products: 39 m primary mirror, Zerodur mirror blanks, polished mirror segments
- Sectors: [Semiconductors and Industrial Electronics](https://endata.com/sectors/semiconductors-electronics.md)

## Companies

- [Schott](https://endata.com/companies/4809.md) (supplier)
- [Safran Reosc](https://endata.com/companies/24586.md) (supplier)
- [European Southern Observatory](https://endata.com/companies/24587.md) (customer)

## Sources

- [laserfocusworld.com](https://www.laserfocusworld.com/optics/article/16569750/schott-and-safran-reosc-awarded-39-m-mirror-contract-for-esos-extremely-large-telescope), 2017-05-31: "Contracts for the manufacture of the 39 m primary mirror of the European Southern Observatory's (ESO's) Extremely Large Telescope (ELT) were signed at a ceremony at ESO’s headquarters near Munich."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.