Optical Substrates & Precision Glasses

Optical Substrates &
Precision Glasses

FUJITOK offers the best selection of optical substrates and precision glasses for use in a wide spectrum of optical applications. With two subsidiary workshops specializing in polishing and cutting, we deliver substrates of superb surface quality and flatness at a highly competitive cost. Contact us for more about optical substrates and glasses we offer.

Optical Substrates & Precision Glasses

Fused Silica

Thanks to its excellent engineering properties like exceptionally high thermal shock resistance and near zero thermal expansion, Fused Silica is the right substrate for temperature insensitive optical component supports and optical parts used in highly variable temperature regimes, such as lenses and mirrors.

Size Round shape: Diameter up to 600mm(up to 24.0 inch)
Square/Rectangle up to 450mm x 450mm (up to 18 x 18 inch)
Thickness 0.1mm - 30mm with specified tolerance
Surface Optical Grade - Flatness/TWF 1/20 waves @632.8nm per 25.4mm (1 inch) circle.
TTV 0.3μm
Roughness Down to 1Å RMS
Scratch & Dig 5/1
Material UV-Grade, Water free, and other grade Fused Silica from Corning, OHARA, Heraeus, SHINETSU, NIKON, TOSOH, CoorsTek, AGC, Helma, and other manufacturers

Optical Glasses and Other Glasses

We offer a broad range of optical grade glasses of superb surface quality and flatness.

Size Round shape: Diameter up to 600mm(up to 24.0 inch)
Square/Rectangle up to 450mm x 450mm (up to 18 x 18 inch)
Thickness 0.5mm or above with specified tolerance
Surface Optical Grade - Flatness/TWF 1/20 waves @632.8nm per 25.4mm (1 inch) circle.
Roughness Down to 1Å RMS
Scratch & Dig 5/1
Material Optical Glasses, B270i, D-263, Corning EAGLE XG, Borofloat and other glasses from Schott, OHARA, SUMITA and other manufactures

Color Filter Glasses

We also offer a broad range of color filter glasses for use in various applications.

Size 165.1mm (6.5 inch) Square maximum (standard),
or any other size and shape
Thickness up to 6.0mm with specified tolerance
Surface Optical Grade - Flatness/TWF 1/20 waves @632.8nm per 25.4mm (1inch) circle
Material Almost any types of Color Filter Glasses are available,
mainly from Schott

IR/UV Transparent Material,
Sapphire and Optical Crystal

We serve precise fabrication with vacuum ultraviolet through infrared materials including CaF2, BaF2, MgF2, Sillicon, Ge, ZnS, ZnSe and Sapphire.

Size Round shape: Diameter up to 300mm (up to 12.0 inch)
Square/Rectangle up to 228.6mm (9 inch) square
Thickness 0.5mm -20mm
Surface Flatness Flatness 1/20 waves @632.8nm per 25.4mm (1 inch) circle.
Surface Irregularity Flatness 1/20 waves @632.8nm per 25.4mm (1 inch) circle.
Roughness Down to 1Å RMS
Scratch & Dig 5/1
Material CaF2, BaF2, MgF2, Sillicon, Ge, ZnS, ZnSe and Sapphire
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