Hellma Materials CaF2 has been utilized as an optical key material in microlithography for semiconductor production for many years.
CaF2 is established as an industry standard material for excimer laser optics in projection and illumination optics.
The unique optical properties of CaF2 enable a variety of advanced applications.

CVD Ceramics' chemically vapor deposited CVD Zinc Sulfide is the low cost alternative for infrared windows, domes and optical elements.
With a fracture strength double that of zinc selenide and high hardness.
 

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.

Heraeus Suprasil 300 is a fully synthetic fused silica, OH free.
Suprasil 030 / 300 is designed for highest purity lamp applications. The tube is fabricated using the unique Heraeus multi-step process (S-ZUG).

SQ fused silica is an advanced industrial inclusion free and bubble free material supplied by LEONI, Germany. SQ(synthetic quartz) stands for fused silica and exhibits laser Durabil, refractive index uniformity, and stability under thermal conditions and stress.
Its uniformity and stripe level can be used in optical components such as prisms, lenses, wafers or displays.

Fused quartz has high chemical purity and corrosion resistance, high softening temperature, good heat resistance, low thermal expansion, high thermal shock resistance, high transparency from ultraviolet to infrared spectrum range, high radiation resistance.