Fused Silica Meniscus Lens PQu07-
The fused silica meniscus lens has a meniscus appearance and a special lens structure, which is designed to minimize spherical aberration. When it can be used alone or in combination with another lens, the focal length can be reduced, thus increasing the numerical aperture. When used to converge parallel light, the convex surface of the lens should face the light source to minimize spherical aberration. Applied in laser systems, spectrometers, optical communications, etc., UM OPTICS can provide a diameter of 2-300mm and a thickness of 0.12-60mm (accuracy can reach 20-10,1)/ 10L@633nm ）Fused silica crescent lens, with four major processes of rubber plate polishing, high-speed polishing, annular polishing and CNC polishing, ZYGO, AFM, reflection and transmission centering instrument, 15 second goniometer, UV gluing centering system, non-contact laser thickness gauge, 2D imager and ball diameter meter, ensures the accuracy of data. 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 | 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 [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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