Revealing cosmic secrets
With the new super telescope, the Extremely Large Telescope, astronomers want to look deeper than ever into space. ZERODUR® glass-ceramic is the mirror substrate material that delivers the highest image quality.
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Challenge Glass!
Are you facing a challenge with something
you are currently developing?

Perhaps specialty glass, glass ceramics or
composite material is the perfect solution for you!
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4-meter mirror blank cast for the ELT project
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Increased efficiency with a PBR made of high end glass
Lower costs and higher productivity through innovative solutions
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Major order for the world’s largest telescope

Major order for the world’s largest telescope
The 39-meter main mirror of the Extremely Large Telescope (ELT) will be composed of 798 ZERODUR® glass-ceramic segments in the future. The European Southern Observatory (ESO) has awarded SCHOTT the contract to supply a total of 949 mirror substrates, including spare parts. ZERODUR® has thus once again been confirmed as the standard material for mirror substrates for the world’s largest telescopes. 
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Traveling into a 1,200-degree melt to learn how glass is made

Cooktop panels become smart design objects
Inside this 1,200-degree Celsius oven and in the process that follows, elements and compounds form new bonds, gain mechanical strength, thermal stability, unique optical properties, and other attributes that allow them to perform at a consistently high level. Here’s what happens inside the melt and how it forms glass’s many advantages.
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555 Taxter Road
Elmsford, NY 10523
E-Mail to SCHOTT+1 (914) 831-2200
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