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.
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) |
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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) |
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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 |
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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 |
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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 |