Fused Silica Biconvex Lens PQu05-
The fused silica biconvex lens has two convex surfaces and a central axis, which is used in the optical system to change the beam focusing characteristics. The fused silica material has the characteristics of high purity and high temperature melting, which makes the biconvex lens have excellent light transmittance and thermal stability. It has a wide spectral range (185nm-2.1 μ m), excellent transmittance in the ultraviolet band, lower refractive index, better uniformity, smaller coefficient of thermal expansion, high chemical resistance, and low fluorescence. It 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 | 0.12-60 mm |
| Design Wavelength | Customizable |
| Radius of Curvature | Customizable |
| Surface Quality | 60-40 |
| Diameter Tolerance | +0.0/-0.1 |
| Thk Tolerance | ±0.1 mm |
| Substrate Material | Fused quartz |
| PV [@632.8nm] | λ/4 |
| Centering | <3′ |
| Clear Aperture | >90% |
| Coating | Uncoated |
| REACH | Compliant with Standards |
| ROHS | Compliant with Standards |
| Transmission Range [Substrate Material: Fused Silica] | 0.18-2.1μm |
| Refractive Index [Substrate Material: Fused Silica; @0.5876μm] | 1.4585 |
| Density [Substrate Material: Fused Silica] | 2.21 g/cm³ |
| Melting Point [Substrate Material: Fused Silica] | 1900 deg C |
| Thermal Conductivity [Substrate Material: Fused Silica] | 1.35 W/(m×deg C) |
| Thermal Expansion [Substrate Material: Fused Silica] | 4.0*10⁻⁶ |
| Specific Heat Capacity [Substrate Material: Fused Silica] | 0.728*10⁻³ |
| Young's Modulus [Substrate Material: Fused Silica] | 7.36 GPa |
| Shear Modulus [Substrate Material: Fused Silica] | 3.14 GPa |
| Poisson Coefficient [Substrate Material: Fused Silica] | 0.17 |
| Solubility [Substrate Material: Fused Silica] | Insoluble |
Applications
Datasheet
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