Silicon (SI) plano convex lens

plano convex lens
  • Silicon (SI) single crystal is a chemically inert material with high hardness and insoluble in water. It has good light transmission performance in 1.2 – 7μm band and 30-300 in far infrared band  μm also has good light transmission performance, which is not possessed by other infrared materials.
  • Silicon (SI) single crystals are commonly used as 3 – 5μm medium wave infrared optical lens, optical window and optical filter substrate.
  • Because of its good thermal conductivity and low density, the material is often used to make laser mirrors and occasions sensitive to volume and weight.
Technical parameters
Items Parameters
Material Silicon (SI)
Radius of curvature ± 1mm - ± 50000mm ± 1%
Diameter 3mm-300mm ± 0.1mm
Center thickness tolerance ± 0.05mm (we can process to ± 0.01mm with high precision)
Center deviation 3′(we can process to 30 ″with high precision)
Surface accuracy λ/ 8 (high precision, we can process to 1 / 10λ)
Surface quality 40/20 (we can process to 10-5 with high precision)
Effective caliber ≥90%
Coating IR AR Coating 3-5μm or according to customer requirements
spectral curve

In addition, we have some Silicon (SI) plano convex lenses in stock, with preferential prices and excellent quality, which can meet your demand for a small order.

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