Fused Silica Plano-concave Lens

The fused silica plano-concave lens has a plane and a concave spherical surface. The design purpose is to generate negative spherical aberration for beam expansion or increasing focal length to balance the deviation of other lenses. Having high purity and high-temperature melting characteristics, the flat concave lens has excellent transparency and thermal stability. Applied in laser systems, spectrometers, and optical communications. It can be used to control the focusing and collimation of light beams, improve the imaging quality of optical systems, and enhance measurement accuracy. UM OPTICS can provide a flat concave fused silica lens with a diameter of 2-300mm and a thickness of 0.12-60mm.

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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 Plano Concave Lenses Number：PQu04- 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