Infrared lenses are widely used in FLIR, FTIR spectroscopy and thermal imaging. Utral precision spherical silicon lenses are used in MWIR and LWIR wavelength ranges.
Luoyang Silicon manufacture IR material silicon and Germanium. We can control well the radius and surface roughness.
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Material specification |
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Crystal structure |
Monocrystalline Silicon |
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Purity |
>99.9999% |
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Orientation |
<100>
<111> |
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Conductivity |
N type (Phosphorous doped)
P type(Boron doped) |
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Resistivity |
N type >10 ohm/cm
P type >30 ohm/cm |
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Manufacture Limits |
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Diameter |
7mm to 300mm |
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Diameter tolerance |
+/-0.05 |
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Center thickness |
Customized |
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Center thickness tolerance |
+/-0.05 |
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Sag Height |
+/-30 |
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Sag Height tolerance |
+/-0.05 |
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Radius tolerance |
Normally within 1% |
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Surface finish |
Cut
Fine grinding(D7 to D46) |
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Edge thickness variation |
<0.05 |
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