Lithium Fluoride Meniscus Lens

Lithium fluoride selenide lenses have high transmittance in the infrared and ultraviolet bands, as well as low reflectivity and absorption, and are used in the manufacturing of infrared lenses and windows. In aerospace optical systems, it is used for windows, prisms, and lenses with a transmission spectral range of 120nm-7000nm. UM OPTICS provide a diameter of 2-150mm and a thickness of 0.12-60mm (with an accuracy of 20-10, 1)/ 10L@633nm ）Lithium fluoride selenide lenses 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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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.

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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 2-150	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	2-150	15-5000	0.12-60	0.12-60	Custom	Custom	60-40
Lithium Fluoride Meniscus Lenses Number：PLi07- Dia(mm)：2-150 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：Lithium Fluoride（LiF） PV@632.8nm：λ/4 Centering：3 Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant

Material Data
Optical Properties
Transmission Range	0.11-7μm
Transmittance	>94.8%@0.6μm
Reflection Loss	5.2%@0.6μm(both surfaces)
Absorption Coefficienet	5.9×10-3@4.3μm
Structure	Cubic Crystal System
Cleavage Planes	<100>
Physical Properties
Density [g/cm3]	2.639
Melting Point [℃]	848
Thermal Conductivity [W/(m×K)]	11.3 @ 314K
Thermal Expansion [10-6/K]	37.0 @ 283K
Knoop Hardness [kg/mm2]	415
Specific Heat Capacity [J/(kg×K)]	1562
Dielectric Constant	7.33 @ 1 MHz
Young's Modulus (E) [GPa]	64.79
Shear Modulus(G) [GPa]	55.14
Bulk Modulus(K) [GPa]	62.03
Poisson Coefficient	0.22
Chemical Properties
Solubility / g/L	2.7g @ 20℃
Molecular Weight / g/mol	25.9394