Fused Silica Meniscus Lens

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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Please leave a message or inquire about the price online to ensure a satisfactory price for you.

All products are provided with invoices, with a tax point of 13.

The product undergoes multiple inspections before being stored, and the quality is guaranteed. Please use it with confidence.

Spot products, shipped within 48 hours. For non stock or customized products, please consult.

International order logistics include DHL, FedEx, TNT, and EMS

When receiving the product, please ensure the integrity of the product packaging box first. If there is serious damage to the appearance, please refuse and contact us, and we will handle it for you as soon as possible.

Optical products are special items and cannot be returned or exchanged unless there is a quality issue with the product itself

If you need customization or bulk production, please contact us online and we will offer you a discounted price.

	Dia(mm)	Focal Length(mm)	Center Thickness(mm)	Edge Thickness(mm)	Design Wavelength(μm)	Radius of Curvature(mm)	Surface Quality
	Screen Reset 2-300	Screen Reset 15-5000	Screen Reset 0.12-60	Screen Reset 0.12-60	Screen Reset Custom	Screen Reset Custom	Screen Reset 60-40
More+ Less	2-300	15-5000	0.12-60	0.12-60	Custom	Custom	60-40
Fused Silica Meniscus Lenses Number：PQu07- Dia(mm)：2-300 Focal Length(mm)：15-5000 Center Thickness(mm)：0.12-60 Edge Thickness(mm)：0.12-60 Design Wavelength(μm)：Custom Radius of Curvature(mm)：Custom Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Fused Silica PV@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant

Material Data
Optical Properties
Transmission Range	0.18-2.1μm
Refractive Index@0.5876μm	1.4585
Physical Properties
Density [g/cm3]	2.21
Melting Point [deg C]	1900
Thermal Conductivity [W/(m×deg C)]	1.35
Thermal Expansion [deg C-1 ]	4.0*10-6
Specific Heat Capacity [J/(Kg*deg C ]	0.728*10-3
Young's Modulus [GPa]	7.36
Shear Modulus [GPa]	3.14
Poisson Coefficient	0.17
Chemical Properties
Solubility	Insoluble