Silicon Plano-Concave Lens PSi04-
A silicon plano-concave lens is composed of a plane and a concave spherical surface, which can generate negative spherical aberration. It is commonly used in systems to expand light beams or increase focal length to balance the deviation of other lenses. Micron optics can provide a diameter of 2-300mm and a thickness of 0.12-60mm (accuracy can reach 20-10,1)/ 10L@633nm ）Silicon plano concave lens, can be coated with MgF2, UV-AR, UV-VIS, VIS-EXT, VIS-NIR, NIR I, NIR II, Telecom NIR, SWIR, SWIR, YAG-BBAR and other film systems.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Dia | 2-300 mm |
| Focal Length | 15-5000 mm |
| Center Thickness | 0.12-60 mm |
| Edge Thickness | Custom |
| Design Wavelength | Custom |
| Radius of Curvature | Custom |
| Surface Quality | 60-40 |
| Diameter Tolerance | +0.0/-0.1 |
| Thk Tolerance | ±0.1 mm |
| Substrate Material | Fused Silica |
| PV [@632.8nm] | λ/4 |
| Centering | <3′ |
| Clear Aperture | 90% |
| Coating | Uncoated |
| REACH | Compliant |
| ROHS | Compliant |
| Transmission Range | 1.2-15μm |
| Refractive Index [@10μm] | 3.41776%@10μm |
| Reflection Loss [@10μm] | 46.1%@10μm |
| Structure | Single crystal,synthetic |
| Cleavage Planes | <111> |
| Density | 2.33 g/cm³ |
| Melting Point | 1414 ℃ |
| Thermal Conductivity [@313K] | 163 @ 313K |
| Thermal Expansion [@293K] | 2.6 @ 293K |
| Knoop Hardness | 1100 kg/mm² |
| Specific Heat Capacity | 712.8 J/(kg×K) |
| Dielectric Constant [@f= 9.37GHz] | 13 @f= 9.37GHz |
| Young's Modulus (E) | 130.91 GPa |
| Shear Modulus(G) | 79.92 GPa |
| Bulk Modulus(K) | 101.97 GPa |
| Poisson Coefficient | 0.266 |
| Solubility | None |
| Molecular Weight | 28.09 g/mol |
Applications
Datasheet
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Supplier Information
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