Glass Ceramics has a very low thermal expansion rate, so it is essential for a large number of demanding high-tech applications that require extremely high accuracy.

Zerodur glass-ceramic has always been one of Schott's most unique and extraordinary products.
Due to its extremely low thermal expansion rate, it is essential for a large number of demanding high-tech applications requiring extremely high precision.

OHARA CLEARCERAM-Z is a kind of microcrystalline glass with ultra-low coefficient of thermal expansion
This material was developed by ohara based on high uniform melting and precise crystallization.

This material was developed by OHARA based on our knowledge of High Homogeneity melting and Precise Crystallization. This material is produced under tightly controlled conditions and offers outstanding thermal, mechanical and chemical properties.

Schott Sapphire, as one of the hardest, most durable and scratch resistant materials, offers a broad transmission range from UV to mid infrared wavelengths (250 - 5000 nm). The material is able to withstand extreme environmental conditions and temperature changes. SCHOTT offers sapphire materials, Raytek offers the machining process in different supply forms, dimensions, and in customized processing stages.